TY  - CONF
AU  - Maksimović, Jelena
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7431
AB  - The impact of L-tyrosine amino acid on the kinetics of the BL oscillatory reaction was investigated
under closed reactor conditions. The study was focused on examining the sensitivity of the BL
reaction matrix to tyrosine perturbations. A high sensitivity of the BL matrix to very low tyrosine
concentrations was observed.
PB  - Serbian Society of Mechanics
C3  - 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
T1  - L-tyrosine influence on the reaction kinetics of iodatehydrogen peroxide oscillatory reaction
SP  - 457
EP  - 458
UR  - https://hdl.handle.net/21.15107/rcub_cer_7431
ER  - 

@conference{
author = "Maksimović, Jelena and Ivanović-Šašić, Ana and Maćešić, Stevan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2023",
abstract = "The impact of L-tyrosine amino acid on the kinetics of the BL oscillatory reaction was investigated
under closed reactor conditions. The study was focused on examining the sensitivity of the BL
reaction matrix to tyrosine perturbations. A high sensitivity of the BL matrix to very low tyrosine
concentrations was observed.",
publisher = "Serbian Society of Mechanics",
journal = "9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia",
title = "L-tyrosine influence on the reaction kinetics of iodatehydrogen peroxide oscillatory reaction",
pages = "457-458",
url = "https://hdl.handle.net/21.15107/rcub_cer_7431"
}

Maksimović, J., Ivanović-Šašić, A., Maćešić, S., Čupić, Ž.,& Kolar-Anić, L.. (2023). L-tyrosine influence on the reaction kinetics of iodatehydrogen peroxide oscillatory reaction. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia
Serbian Society of Mechanics., 457-458.
https://hdl.handle.net/21.15107/rcub_cer_7431

Maksimović J, Ivanović-Šašić A, Maćešić S, Čupić Ž, Kolar-Anić L. L-tyrosine influence on the reaction kinetics of iodatehydrogen peroxide oscillatory reaction. in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia. 2023;:457-458.
https://hdl.handle.net/21.15107/rcub_cer_7431 .

Maksimović, Jelena, Ivanović-Šašić, Ana, Maćešić, Stevan, Čupić, Željko, Kolar-Anić, Ljiljana, "L-tyrosine influence on the reaction kinetics of iodatehydrogen peroxide oscillatory reaction" in 9th International Congress of the Serbian Society of Mechanics, Book of Proceedings, July 5-7, 2023, Vrnjačka Banja, Serbia (2023):457-458,
https://hdl.handle.net/21.15107/rcub_cer_7431 .

TY  - CONF
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Maksimović, Jelena
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/7430
AB  - It is well known that almost all living or biological systems are naturally in the oscillatory dynamic states and can be considered as biochemical reaction systems. These oscillatory dynamic states can be caused by internal self-organized phenomena, but also by external periodic variations of temperature, light, food, or seasonal changes. The hypothalamic-pituitary-thyroid (HPT) axis is one such nonlinear system with feedback that is always in an oscillatory dynamic state and L-tyrosine is its main representative.
The biological importance of L-tyrosine interactions with iodine species was the motivation for modelling of the oscillatory dynamics in the Bray-Liebhafsky (BL) reaction perturbed by L- tyrosine. Also, direct experimental investigation of metabolic processes in the human body is extremely complex to be done, and therefore any alternative approach is of great importance. Therefore, the BL reaction has the potential to be used as a model of the biological system due to certain characteristics shared with the considered processes; it is characterized by its oscillatory dynamics and based on the chemistry of hydrogen peroxide and iodine compounds commonly present in the thyroid gland, where L-tyrosine is iodinated.
The impact of L-tyrosine on the dynamics of the Bray-Lienbhafsky oscillatory reaction was investigated numerically using the proposed model. The study was focused on the examination of the sensitivity of the BL reaction to L-tyrosine perturbation. The obtained results indicated possible pathways of influence
PB  - Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac
C3  - 2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023, Book of proceedings, September 28-29, 2023, Kragujevac, Serbia
T1  - Numerical simulations of the oscillatory dynamics in the Bray-Liebhafsky reaction perturbed by L-tyrosine
VL  - 612
SP  - 609
DO  - 10.46793/ICCBI23.609IS
ER  - 

@conference{
author = "Ivanović-Šašić, Ana and Maćešić, Stevan and Maksimović, Jelena and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2023",
abstract = "It is well known that almost all living or biological systems are naturally in the oscillatory dynamic states and can be considered as biochemical reaction systems. These oscillatory dynamic states can be caused by internal self-organized phenomena, but also by external periodic variations of temperature, light, food, or seasonal changes. The hypothalamic-pituitary-thyroid (HPT) axis is one such nonlinear system with feedback that is always in an oscillatory dynamic state and L-tyrosine is its main representative.
The biological importance of L-tyrosine interactions with iodine species was the motivation for modelling of the oscillatory dynamics in the Bray-Liebhafsky (BL) reaction perturbed by L- tyrosine. Also, direct experimental investigation of metabolic processes in the human body is extremely complex to be done, and therefore any alternative approach is of great importance. Therefore, the BL reaction has the potential to be used as a model of the biological system due to certain characteristics shared with the considered processes; it is characterized by its oscillatory dynamics and based on the chemistry of hydrogen peroxide and iodine compounds commonly present in the thyroid gland, where L-tyrosine is iodinated.
The impact of L-tyrosine on the dynamics of the Bray-Lienbhafsky oscillatory reaction was investigated numerically using the proposed model. The study was focused on the examination of the sensitivity of the BL reaction to L-tyrosine perturbation. The obtained results indicated possible pathways of influence",
publisher = "Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac",
journal = "2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023, Book of proceedings, September 28-29, 2023, Kragujevac, Serbia",
title = "Numerical simulations of the oscillatory dynamics in the Bray-Liebhafsky reaction perturbed by L-tyrosine",
volume = "612",
pages = "609",
doi = "10.46793/ICCBI23.609IS"
}

Ivanović-Šašić, A., Maćešić, S., Maksimović, J., Čupić, Ž.,& Kolar-Anić, L.. (2023). Numerical simulations of the oscillatory dynamics in the Bray-Liebhafsky reaction perturbed by L-tyrosine. in 2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023, Book of proceedings, September 28-29, 2023, Kragujevac, Serbia
Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac., 612, 609.
https://doi.org/10.46793/ICCBI23.609IS

Ivanović-Šašić A, Maćešić S, Maksimović J, Čupić Ž, Kolar-Anić L. Numerical simulations of the oscillatory dynamics in the Bray-Liebhafsky reaction perturbed by L-tyrosine. in 2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023, Book of proceedings, September 28-29, 2023, Kragujevac, Serbia. 2023;612:609.
doi:10.46793/ICCBI23.609IS .

Ivanović-Šašić, Ana, Maćešić, Stevan, Maksimović, Jelena, Čupić, Željko, Kolar-Anić, Ljiljana, "Numerical simulations of the oscillatory dynamics in the Bray-Liebhafsky reaction perturbed by L-tyrosine" in 2nd International Conference on Chemo and Bioinformatics ICCBIKG 2023, Book of proceedings, September 28-29, 2023, Kragujevac, Serbia, 612 (2023):609,
https://doi.org/10.46793/ICCBI23.609IS . .

TY  - CONF
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6415
AB  - Nonlinear feedback loops inherent to neuroendocrine systems are among the most important information flows at the organism level. They support high sensitivity and responsiveness of the living beings to external perturbations. Moreover, nonlinear feedback loops enable efficient control over dynamic physiological states. Often, they can be recognized through emergence of various dynamic phenomena, such as biological rhythmicity. Typical examples of such neuroendocrine systems are the hypothalamic-pituitary-adrenal (HPA) axis and the hypothalamic–pituitary–thyroid (HPT) axis. They are characterized by rhythmic dynamics with two characteristic periods, circadian (~ 24 h) and ultradian (20 min – 120 min), which allows living organisms to quickly adjust their neuroendocrine activity to fluctuations in their surroundings and/or their internal physiology.
We focus our research on mechanistic modelling of biochemical transformations that underlay complex neuroendocrine networks. Thus far, we have developed several variants of low-dimensional and extended models for the HPA axis, as well as, one medium scale model of the HPT axis. Both of them are assembled by combinations of the pseudo-reaction steps, describing in essence the information flow through the network of chemical transformations. Their role in physiological system is to maintain basal levels of hormone concentrations, and enable their functionally reasonable change when some need emerges. Our models enable one to emulate in numerical simulations changes in blood level of relevant hormones that constitute the HPA or HPT axis (Jelić et al. 2005, Marković et al. 2011, Čupić et al. 2017, Kolar-Anić et al. 2023).
The high predictive value of our models paves the way for their use in medical diagnostics of neuroendocrine diseases and for more efficient corticosteroid treatment that is applied in various illnesses, by harnessing the power of the underlying nonlinear feedback loops to the dosage of corticosteroid drugs could be significantly decreased, while preserving their efficacy. We pay special attention to the Stoichiometric Network Analysis of reaction network models to identify conditions ensuring the existence of unstable steady states, and in particular, Hopf bifurcation as a most plausible path leading to the oscillatory dynamics. The simplest way to use this template is to replace the text in this file with your own words using the styles provided as far as possible.
PB  - Belgrade : Research and Development institute Lola Ltd
PB  - COST Action CA21169 DYNALIFE
C3  - Book of abstracts - Modelling Information Flow in Biological Coding Systems, COST Action CA21169 DYNALIFE, WG1 Meeting, Jun 20–21, 2023, Belgrade
T1  - Modeling the Non-Linear Dynamics of Information Flows in Neuro-Endocrine Systems
SP  - 9
EP  - 9
UR  - https://hdl.handle.net/21.15107/rcub_cer_6415
ER  - 

@conference{
author = "Čupić, Željko and Ivanović-Šašić, Ana",
year = "2023",
abstract = "Nonlinear feedback loops inherent to neuroendocrine systems are among the most important information flows at the organism level. They support high sensitivity and responsiveness of the living beings to external perturbations. Moreover, nonlinear feedback loops enable efficient control over dynamic physiological states. Often, they can be recognized through emergence of various dynamic phenomena, such as biological rhythmicity. Typical examples of such neuroendocrine systems are the hypothalamic-pituitary-adrenal (HPA) axis and the hypothalamic–pituitary–thyroid (HPT) axis. They are characterized by rhythmic dynamics with two characteristic periods, circadian (~ 24 h) and ultradian (20 min – 120 min), which allows living organisms to quickly adjust their neuroendocrine activity to fluctuations in their surroundings and/or their internal physiology.
We focus our research on mechanistic modelling of biochemical transformations that underlay complex neuroendocrine networks. Thus far, we have developed several variants of low-dimensional and extended models for the HPA axis, as well as, one medium scale model of the HPT axis. Both of them are assembled by combinations of the pseudo-reaction steps, describing in essence the information flow through the network of chemical transformations. Their role in physiological system is to maintain basal levels of hormone concentrations, and enable their functionally reasonable change when some need emerges. Our models enable one to emulate in numerical simulations changes in blood level of relevant hormones that constitute the HPA or HPT axis (Jelić et al. 2005, Marković et al. 2011, Čupić et al. 2017, Kolar-Anić et al. 2023).
The high predictive value of our models paves the way for their use in medical diagnostics of neuroendocrine diseases and for more efficient corticosteroid treatment that is applied in various illnesses, by harnessing the power of the underlying nonlinear feedback loops to the dosage of corticosteroid drugs could be significantly decreased, while preserving their efficacy. We pay special attention to the Stoichiometric Network Analysis of reaction network models to identify conditions ensuring the existence of unstable steady states, and in particular, Hopf bifurcation as a most plausible path leading to the oscillatory dynamics. The simplest way to use this template is to replace the text in this file with your own words using the styles provided as far as possible.",
publisher = "Belgrade : Research and Development institute Lola Ltd, COST Action CA21169 DYNALIFE",
journal = "Book of abstracts - Modelling Information Flow in Biological Coding Systems, COST Action CA21169 DYNALIFE, WG1 Meeting, Jun 20–21, 2023, Belgrade",
title = "Modeling the Non-Linear Dynamics of Information Flows in Neuro-Endocrine Systems",
pages = "9-9",
url = "https://hdl.handle.net/21.15107/rcub_cer_6415"
}

Čupić, Ž.,& Ivanović-Šašić, A.. (2023). Modeling the Non-Linear Dynamics of Information Flows in Neuro-Endocrine Systems. in Book of abstracts - Modelling Information Flow in Biological Coding Systems, COST Action CA21169 DYNALIFE, WG1 Meeting, Jun 20–21, 2023, Belgrade
Belgrade : Research and Development institute Lola Ltd., 9-9.
https://hdl.handle.net/21.15107/rcub_cer_6415

Čupić Ž, Ivanović-Šašić A. Modeling the Non-Linear Dynamics of Information Flows in Neuro-Endocrine Systems. in Book of abstracts - Modelling Information Flow in Biological Coding Systems, COST Action CA21169 DYNALIFE, WG1 Meeting, Jun 20–21, 2023, Belgrade. 2023;:9-9.
https://hdl.handle.net/21.15107/rcub_cer_6415 .

Čupić, Željko, Ivanović-Šašić, Ana, "Modeling the Non-Linear Dynamics of Information Flows in Neuro-Endocrine Systems" in Book of abstracts - Modelling Information Flow in Biological Coding Systems, COST Action CA21169 DYNALIFE, WG1 Meeting, Jun 20–21, 2023, Belgrade (2023):9-9,
https://hdl.handle.net/21.15107/rcub_cer_6415 .

TY  - JOUR
AU  - Kolar-Anić, Ljiljana
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Ivanović-Šašić, Ana
AU  - Dietrich, Johannes
PY  - 2023
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6416
AB  - The synthesis of thyroid hormones in the hypothalamic-pituitary-thyroid (HPT) axis was studied. For this purpose,
a reaction model for HPT axis with stoichiometric relations between the main reaction species was
postulated. Using the law of mass action, this model has been transformed into a set of nonlinear ordinary
differential equations. This new model has been examined by stoichiometric network analysis (SNA) with the aim
to see if it possesses the ability to reproduce oscillatory ultradian dynamics founded on the internal feedback
mechanism. In particular, a feedback regulation of TSH production based on the interplay between TRH, TSH,
somatostatin and thyroid hormones was proposed. Besides, the ten times larger amount of produced T4 with
respect to T3 in the thyroid gland was successfully simulated. The properties of SNA in combination with
experimental results, were used to determine the unknown parameters (19 rate constants of particular reaction
steps) necessary for numerical investigations. The steady-state concentrations of 15 reactive species were tuned
to be consistent with the experimental data. The predictive potential of the proposed model was illustrated on
numerical simulations of somatostatin influence on TSH dynamics investigated experimentally by Weeke et al. in
1975. In addition, all programs for SNA analysis were adapted for this kind of a large model. The procedure of
calculating rate constants from steady-state reaction rates and very limited available experimental data was
developed. For this purpose, a unique numerical method was developed to fine-tune model parameters while
preserving the fixed rate ratios and using the magnitude of the experimentally known oscillation period as the
only target value. The postulated model was numerically validated by perturbation simulations with somatostatin
infusion and the results were compared with experiments available in literature. Finally, as far as we know,
this reaction model with 15 variables is the most dimensional one that have been analysed mathematically to
obtain instability region and oscillatory dynamic states. Among the existing models of thyroid homeostasis this
theory represents a new class that may improve our understanding of basic physiological processes and helps to
develop new therapeutic approaches. Additionally, it may pave the way to improved diagnostic methods for
pituitary and thyroid disorders.
PB  - Elsevier
T2  - Computers in Biology and Medicine
T1  - Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback
VL  - 160
SP  - 106980
DO  - 10.1016/j.compbiomed.2023.106980
ER  - 

@article{
author = "Kolar-Anić, Ljiljana and Čupić, Željko and Maćešić, Stevan and Ivanović-Šašić, Ana and Dietrich, Johannes",
year = "2023",
abstract = "The synthesis of thyroid hormones in the hypothalamic-pituitary-thyroid (HPT) axis was studied. For this purpose,
a reaction model for HPT axis with stoichiometric relations between the main reaction species was
postulated. Using the law of mass action, this model has been transformed into a set of nonlinear ordinary
differential equations. This new model has been examined by stoichiometric network analysis (SNA) with the aim
to see if it possesses the ability to reproduce oscillatory ultradian dynamics founded on the internal feedback
mechanism. In particular, a feedback regulation of TSH production based on the interplay between TRH, TSH,
somatostatin and thyroid hormones was proposed. Besides, the ten times larger amount of produced T4 with
respect to T3 in the thyroid gland was successfully simulated. The properties of SNA in combination with
experimental results, were used to determine the unknown parameters (19 rate constants of particular reaction
steps) necessary for numerical investigations. The steady-state concentrations of 15 reactive species were tuned
to be consistent with the experimental data. The predictive potential of the proposed model was illustrated on
numerical simulations of somatostatin influence on TSH dynamics investigated experimentally by Weeke et al. in
1975. In addition, all programs for SNA analysis were adapted for this kind of a large model. The procedure of
calculating rate constants from steady-state reaction rates and very limited available experimental data was
developed. For this purpose, a unique numerical method was developed to fine-tune model parameters while
preserving the fixed rate ratios and using the magnitude of the experimentally known oscillation period as the
only target value. The postulated model was numerically validated by perturbation simulations with somatostatin
infusion and the results were compared with experiments available in literature. Finally, as far as we know,
this reaction model with 15 variables is the most dimensional one that have been analysed mathematically to
obtain instability region and oscillatory dynamic states. Among the existing models of thyroid homeostasis this
theory represents a new class that may improve our understanding of basic physiological processes and helps to
develop new therapeutic approaches. Additionally, it may pave the way to improved diagnostic methods for
pituitary and thyroid disorders.",
publisher = "Elsevier",
journal = "Computers in Biology and Medicine",
title = "Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback",
volume = "160",
pages = "106980",
doi = "10.1016/j.compbiomed.2023.106980"
}

Kolar-Anić, L., Čupić, Ž., Maćešić, S., Ivanović-Šašić, A.,& Dietrich, J.. (2023). Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback. in Computers in Biology and Medicine
Elsevier., 160, 106980.
https://doi.org/10.1016/j.compbiomed.2023.106980

Kolar-Anić L, Čupić Ž, Maćešić S, Ivanović-Šašić A, Dietrich J. Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback. in Computers in Biology and Medicine. 2023;160:106980.
doi:10.1016/j.compbiomed.2023.106980 .

Kolar-Anić, Ljiljana, Čupić, Željko, Maćešić, Stevan, Ivanović-Šašić, Ana, Dietrich, Johannes, "Modelling of the thyroid hormone synthesis as a part of nonlinear reaction mechanism with feedback" in Computers in Biology and Medicine, 160 (2023):106980,
https://doi.org/10.1016/j.compbiomed.2023.106980 . .

TY  - JOUR
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
AU  - Ivanović-Šašić, Ana
AU  - Novaković, Katarina
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/5293
AB  - The study presents a mathematical model of Bruk Temkin-Gorodsky Novakovic (BT-GN) reaction system employing palladium-catalyzed oscillatory carbonylation reaction of mono alkyne-terminated poly(ethylene glycol) methyl ether. The proposed model advances simulation capabilities of this particular chemical oscillator but also BT-GN reactions in general. The model was verified using experimental data where good agreement is achieved and existence of complex pH oscillations like burst oscillations was matched. Furthermore, the model was used to predict reaction conditions capable of producing further complexities and initial conditions that would lead to desired period of pH oscillations. Having such a powerful tool, enhances our capabilities to study and further develop BT-GN oscillators with a reduced experimental effort.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism
VL  - 135
IS  - 1
SP  - 3
EP  - 14
DO  - 10.1007/s11144-021-02148-9
ER  - 

@article{
author = "Čupić, Željko and Maćešić, Stevan and Anić, Slobodan and Kolar-Anić, Ljiljana and Ivanović-Šašić, Ana and Novaković, Katarina",
year = "2022",
abstract = "The study presents a mathematical model of Bruk Temkin-Gorodsky Novakovic (BT-GN) reaction system employing palladium-catalyzed oscillatory carbonylation reaction of mono alkyne-terminated poly(ethylene glycol) methyl ether. The proposed model advances simulation capabilities of this particular chemical oscillator but also BT-GN reactions in general. The model was verified using experimental data where good agreement is achieved and existence of complex pH oscillations like burst oscillations was matched. Furthermore, the model was used to predict reaction conditions capable of producing further complexities and initial conditions that would lead to desired period of pH oscillations. Having such a powerful tool, enhances our capabilities to study and further develop BT-GN oscillators with a reduced experimental effort.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism",
volume = "135",
number = "1",
pages = "3-14",
doi = "10.1007/s11144-021-02148-9"
}

Čupić, Ž., Maćešić, S., Anić, S., Kolar-Anić, L., Ivanović-Šašić, A.,& Novaković, K.. (2022). Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 135(1), 3-14.
https://doi.org/10.1007/s11144-021-02148-9

Čupić Ž, Maćešić S, Anić S, Kolar-Anić L, Ivanović-Šašić A, Novaković K. Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism. in Reaction Kinetics, Mechanisms and Catalysis. 2022;135(1):3-14.
doi:10.1007/s11144-021-02148-9 .

Čupić, Željko, Maćešić, Stevan, Anić, Slobodan, Kolar-Anić, Ljiljana, Ivanović-Šašić, Ana, Novaković, Katarina, "Oscillatory carbonylation of poly(ethylene glycol)methyl ether acetylene. Improved model of reaction mechanism" in Reaction Kinetics, Mechanisms and Catalysis, 135, no. 1 (2022):3-14,
https://doi.org/10.1007/s11144-021-02148-9 . .

TY  - CONF
AU  - Stojiljković, Aleksandra
AU  - Čupić, Željko
AU  - Maćešić, Stevan
AU  - Ivanović-Šašić, Ana
AU  - Kolar-Anić, Ljiljana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6413
AB  - The previously proposed stoichiometric model of the Hypothalamic-Pituitary-Adrenal (HPA)
axis activity that took into account arginine vasopressin (AVP), has been further developed to
emulate ultradian oscillations of corticotropin-releasing hormone (CRH) and AVP. With this
aim, additional coupling of HPA consisting hormones was introduced into this model by
reaction between CRH and cortisol (CORT). How additional coupling of hormones affects HPA
axis ultradian dynamics and reflects on ultradian oscillations of AVP and CRH concentrations
was examined by using numerical simulations and bifurcation analysis. Results show that the
rate constant of newly incorporated reaction alone is sufficient to be adjusted only for CRH to
exhibit oscillations with optimally prominent amplitudes. Also, oscillation frequencies of CRH
were found to be in accordance with findings in the literature under all investigated conditions
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
T1  - Ultradian oscillations of corticotropin-releasing hormone (crh) and arginine vasopressin (avp) in modelling of hypothalamic-pituitary-adrenal axis: influence of feedback loop between crh and cortisol
VL  - I
SP  - 207
EP  - 210
UR  - https://hdl.handle.net/21.15107/rcub_cer_6413
ER  - 

@conference{
author = "Stojiljković, Aleksandra and Čupić, Željko and Maćešić, Stevan and Ivanović-Šašić, Ana and Kolar-Anić, Ljiljana",
year = "2022",
abstract = "The previously proposed stoichiometric model of the Hypothalamic-Pituitary-Adrenal (HPA)
axis activity that took into account arginine vasopressin (AVP), has been further developed to
emulate ultradian oscillations of corticotropin-releasing hormone (CRH) and AVP. With this
aim, additional coupling of HPA consisting hormones was introduced into this model by
reaction between CRH and cortisol (CORT). How additional coupling of hormones affects HPA
axis ultradian dynamics and reflects on ultradian oscillations of AVP and CRH concentrations
was examined by using numerical simulations and bifurcation analysis. Results show that the
rate constant of newly incorporated reaction alone is sufficient to be adjusted only for CRH to
exhibit oscillations with optimally prominent amplitudes. Also, oscillation frequencies of CRH
were found to be in accordance with findings in the literature under all investigated conditions",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia",
title = "Ultradian oscillations of corticotropin-releasing hormone (crh) and arginine vasopressin (avp) in modelling of hypothalamic-pituitary-adrenal axis: influence of feedback loop between crh and cortisol",
volume = "I",
pages = "207-210",
url = "https://hdl.handle.net/21.15107/rcub_cer_6413"
}

Stojiljković, A., Čupić, Ž., Maćešić, S., Ivanović-Šašić, A.,& Kolar-Anić, L.. (2022). Ultradian oscillations of corticotropin-releasing hormone (crh) and arginine vasopressin (avp) in modelling of hypothalamic-pituitary-adrenal axis: influence of feedback loop between crh and cortisol. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 207-210.
https://hdl.handle.net/21.15107/rcub_cer_6413

Stojiljković A, Čupić Ž, Maćešić S, Ivanović-Šašić A, Kolar-Anić L. Ultradian oscillations of corticotropin-releasing hormone (crh) and arginine vasopressin (avp) in modelling of hypothalamic-pituitary-adrenal axis: influence of feedback loop between crh and cortisol. in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia. 2022;I:207-210.
https://hdl.handle.net/21.15107/rcub_cer_6413 .

Stojiljković, Aleksandra, Čupić, Željko, Maćešić, Stevan, Ivanović-Šašić, Ana, Kolar-Anić, Ljiljana, "Ultradian oscillations of corticotropin-releasing hormone (crh) and arginine vasopressin (avp) in modelling of hypothalamic-pituitary-adrenal axis: influence of feedback loop between crh and cortisol" in Proceedings - 16th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2022, September, 26-30, 2022, Belgrade, Serbia, I (2022):207-210,
https://hdl.handle.net/21.15107/rcub_cer_6413 .

TY  - CONF
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
PY  - 2022
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6414
AB  - Many physicochemical processes can exhibit various forms of non-linear
dynamics, which have been widely investigated in the oscillatory
reaction Bray-Liebhafsky, too. The stoichiometry of this reaction
corresponds to the hydrogen peroxide decomposition to water and
oxygen in an acidic environment, in the presence of iodate ions as a
catalyst. During this reaction an oscillatory change of the intermediate
species concentration, along with a cascade change in the hydrogen
peroxide concentration and oxygen removal can be obtained. By
selecting the experimental conditions, the simple periodic or complex
chaotic concentration changes can be generated. Concentration
oscillations are a consequence of alternating dominance of different
reaction pathways present in the reaction mechanism. Large extent of the
phenomena experimentally observed in the oscillatory reaction Bray-
Liebhafsky is well explained by the mechanistic model, investigated by
the Belgrade group over a many years.
PB  - Serbian Academy of Nonlinear Sciences
C3  - Proceedings - 2nd Conference on Nonlinearity, October 18 – 22, 2021, Belgrade, Serbia
T1  - Bray-Liebhafsky reaction: From monotonous to chaotic evolution
SP  - 170
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_cer_6414
ER  - 

@conference{
author = "Čupić, Željko and Ivanović-Šašić, Ana",
year = "2022",
abstract = "Many physicochemical processes can exhibit various forms of non-linear
dynamics, which have been widely investigated in the oscillatory
reaction Bray-Liebhafsky, too. The stoichiometry of this reaction
corresponds to the hydrogen peroxide decomposition to water and
oxygen in an acidic environment, in the presence of iodate ions as a
catalyst. During this reaction an oscillatory change of the intermediate
species concentration, along with a cascade change in the hydrogen
peroxide concentration and oxygen removal can be obtained. By
selecting the experimental conditions, the simple periodic or complex
chaotic concentration changes can be generated. Concentration
oscillations are a consequence of alternating dominance of different
reaction pathways present in the reaction mechanism. Large extent of the
phenomena experimentally observed in the oscillatory reaction Bray-
Liebhafsky is well explained by the mechanistic model, investigated by
the Belgrade group over a many years.",
publisher = "Serbian Academy of Nonlinear Sciences",
journal = "Proceedings - 2nd Conference on Nonlinearity, October 18 – 22, 2021, Belgrade, Serbia",
title = "Bray-Liebhafsky reaction: From monotonous to chaotic evolution",
pages = "170-199",
url = "https://hdl.handle.net/21.15107/rcub_cer_6414"
}

Čupić, Ž.,& Ivanović-Šašić, A.. (2022). Bray-Liebhafsky reaction: From monotonous to chaotic evolution. in Proceedings - 2nd Conference on Nonlinearity, October 18 – 22, 2021, Belgrade, Serbia
Serbian Academy of Nonlinear Sciences., 170-199.
https://hdl.handle.net/21.15107/rcub_cer_6414

Čupić Ž, Ivanović-Šašić A. Bray-Liebhafsky reaction: From monotonous to chaotic evolution. in Proceedings - 2nd Conference on Nonlinearity, October 18 – 22, 2021, Belgrade, Serbia. 2022;:170-199.
https://hdl.handle.net/21.15107/rcub_cer_6414 .

Čupić, Željko, Ivanović-Šašić, Ana, "Bray-Liebhafsky reaction: From monotonous to chaotic evolution" in Proceedings - 2nd Conference on Nonlinearity, October 18 – 22, 2021, Belgrade, Serbia (2022):170-199,
https://hdl.handle.net/21.15107/rcub_cer_6414 .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ivanović-Šašić, Ana
AU  - Dojčinović, Biljana
AU  - Banković, Predrag
AU  - Novaković, Tatjana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6287
AB  - In this work cobalt-doped alumina catalysts were synthetized using the sol-gel method. The calcination temperatures were 500 °C, 1000 °C and 1100 °C and the catalysts were denoted as CoA-500, CoA-1000 and CoA-110, respectively. The obtained catalysts were tested as Oxone® activators for the degradation of tartrazine azo-dye. The influence of the mass of catalyst and the reaction temperature was investigated. The catalyst mass and temperature increase were beneficial for the dye degradation rate. All three catalysts were found to be effective for tartrazine degradation in the presence of Oxone®.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®
VL  - I
SP  - 184
EP  - 186
UR  - https://hdl.handle.net/21.15107/rcub_cer_6287
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ivanović-Šašić, Ana and Dojčinović, Biljana and Banković, Predrag and Novaković, Tatjana",
year = "2021",
abstract = "In this work cobalt-doped alumina catalysts were synthetized using the sol-gel method. The calcination temperatures were 500 °C, 1000 °C and 1100 °C and the catalysts were denoted as CoA-500, CoA-1000 and CoA-110, respectively. The obtained catalysts were tested as Oxone® activators for the degradation of tartrazine azo-dye. The influence of the mass of catalyst and the reaction temperature was investigated. The catalyst mass and temperature increase were beneficial for the dye degradation rate. All three catalysts were found to be effective for tartrazine degradation in the presence of Oxone®.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®",
volume = "I",
pages = "184-186",
url = "https://hdl.handle.net/21.15107/rcub_cer_6287"
}

Marinović, S., Mudrinić, T., Ivanović-Šašić, A., Dojčinović, B., Banković, P.,& Novaković, T.. (2021). Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 184-186.
https://hdl.handle.net/21.15107/rcub_cer_6287

Marinović S, Mudrinić T, Ivanović-Šašić A, Dojčinović B, Banković P, Novaković T. Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:184-186.
https://hdl.handle.net/21.15107/rcub_cer_6287 .

Marinović, Sanja, Mudrinić, Tihana, Ivanović-Šašić, Ana, Dojčinović, Biljana, Banković, Predrag, Novaković, Tatjana, "Cobalt-doped alumina catalysts in catalytic oxidation of tartrazine induced by Oxone®" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):184-186,
https://hdl.handle.net/21.15107/rcub_cer_6287 .

TY  - CONF
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6403
AB  - The Bray-Liebhafsky (BL) is one of the most analyzed oscillatory reaction both experimentally and 
numerically. Most of the experimentally obtained dynamical states of this reaction realized in a 
continuously fed well stirred tank reactor (CSTR) are successfully simulated. Beside others, 
numerous structured chaotic dynamical states were obtained between each two periodic states in the 
period doubling rout to chaos with respect to specific flow rate as the control parameter. It was an 
universal scenario throughout the whole mixed-mode region, as well as throughout other mixed-mode 
regions obtained under different initial conditions. However, the intermittent oscillations consistent 
of chaotic mixture of large-amplitude relaxation oscillations, grouped in bursts and small-amplitude 
sinusoidal ones or even quiescent parts between them known as gaps were also generated 
experimentally in the Bray–Liebhafsky reaction by varying different parameters such as temperature, 
flow rate or reactant concentrations under CSTR conditions. Nevertheless, it will be shown here that 
intermittent oscillations can be simulated by already published model of the BL reaction network.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos
VL  - I
SP  - 199
EP  - 199
UR  - https://hdl.handle.net/21.15107/rcub_cer_6403
ER  - 

@conference{
author = "Ivanović-Šašić, Ana and Maćešić, Stevan and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2021",
abstract = "The Bray-Liebhafsky (BL) is one of the most analyzed oscillatory reaction both experimentally and 
numerically. Most of the experimentally obtained dynamical states of this reaction realized in a 
continuously fed well stirred tank reactor (CSTR) are successfully simulated. Beside others, 
numerous structured chaotic dynamical states were obtained between each two periodic states in the 
period doubling rout to chaos with respect to specific flow rate as the control parameter. It was an 
universal scenario throughout the whole mixed-mode region, as well as throughout other mixed-mode 
regions obtained under different initial conditions. However, the intermittent oscillations consistent 
of chaotic mixture of large-amplitude relaxation oscillations, grouped in bursts and small-amplitude 
sinusoidal ones or even quiescent parts between them known as gaps were also generated 
experimentally in the Bray–Liebhafsky reaction by varying different parameters such as temperature, 
flow rate or reactant concentrations under CSTR conditions. Nevertheless, it will be shown here that 
intermittent oscillations can be simulated by already published model of the BL reaction network.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos",
volume = "I",
pages = "199-199",
url = "https://hdl.handle.net/21.15107/rcub_cer_6403"
}

Ivanović-Šašić, A., Maćešić, S., Čupić, Ž.,& Kolar-Anić, L.. (2021). Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 199-199.
https://hdl.handle.net/21.15107/rcub_cer_6403

Ivanović-Šašić A, Maćešić S, Čupić Ž, Kolar-Anić L. Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:199-199.
https://hdl.handle.net/21.15107/rcub_cer_6403 .

Ivanović-Šašić, Ana, Maćešić, Stevan, Čupić, Željko, Kolar-Anić, Ljiljana, "Various dinamical states in the Bray-Liebhafsky oscillatory reaction- from periodicity to intermittent chaos" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):199-199,
https://hdl.handle.net/21.15107/rcub_cer_6403 .

TY  - CONF
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
AU  - Maćešić, Stevan
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6404
AB  - The first discovered homogeneous oscillatory reaction was the Bray-Liebhafsky (BL) one, 
described in a paper published exactly 100 years ago. However, the applicability of oscillatory 
reactions in chemical computing was recently discovered. Here we intend to expose the native 
computing concept applied to intermittent states of the BL reaction, because we believe that 
this particular state may have some advantages. For this purpose, numerical simulations will be
used based on the known model. Sequences of perturbations will be introduced by adding iodate 
(IO3
-
) and hydrogen peroxide (H2O2), separately, as well as in various combinations with one 
another. It will be shown that dynamic states obtained after perturbations with same species 
depend very much on the sequence in which these species were used in perturbations. 
Additionally, it will be shown that obtained dynamic states shift the system from chaotic 
intermittent dynamic state to different complex periodic states. Hence, the applicability of the 
BL reaction system in chemical computing was demonstrated.
PB  - Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac
C3  - Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia
T1  - Applicability of Bray-Liebhafsky reaction for chemical computing
SP  - 431
EP  - 434
DO  - 10.46793/ICCBI21.431C
ER  - 

@conference{
author = "Čupić, Željko and Ivanović-Šašić, Ana and Maćešić, Stevan and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2021",
abstract = "The first discovered homogeneous oscillatory reaction was the Bray-Liebhafsky (BL) one, 
described in a paper published exactly 100 years ago. However, the applicability of oscillatory 
reactions in chemical computing was recently discovered. Here we intend to expose the native 
computing concept applied to intermittent states of the BL reaction, because we believe that 
this particular state may have some advantages. For this purpose, numerical simulations will be
used based on the known model. Sequences of perturbations will be introduced by adding iodate 
(IO3
-
) and hydrogen peroxide (H2O2), separately, as well as in various combinations with one 
another. It will be shown that dynamic states obtained after perturbations with same species 
depend very much on the sequence in which these species were used in perturbations. 
Additionally, it will be shown that obtained dynamic states shift the system from chaotic 
intermittent dynamic state to different complex periodic states. Hence, the applicability of the 
BL reaction system in chemical computing was demonstrated.",
publisher = "Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac",
journal = "Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia",
title = "Applicability of Bray-Liebhafsky reaction for chemical computing",
pages = "431-434",
doi = "10.46793/ICCBI21.431C"
}

Čupić, Ž., Ivanović-Šašić, A., Maćešić, S., Anić, S.,& Kolar-Anić, L.. (2021). Applicability of Bray-Liebhafsky reaction for chemical computing. in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia
Kragujevac, Serbia : Institute for Information Technologies, University of Kragujevac., 431-434.
https://doi.org/10.46793/ICCBI21.431C

Čupić Ž, Ivanović-Šašić A, Maćešić S, Anić S, Kolar-Anić L. Applicability of Bray-Liebhafsky reaction for chemical computing. in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia. 2021;:431-434.
doi:10.46793/ICCBI21.431C .

Čupić, Željko, Ivanović-Šašić, Ana, Maćešić, Stevan, Anić, Slobodan, Kolar-Anić, Ljiljana, "Applicability of Bray-Liebhafsky reaction for chemical computing" in Book of proceedings - 1st International Conference on Chemo and BioInformatics  ICCBIKG 2021, October 26-27, 2021, Kragujevac, Serbia (2021):431-434,
https://doi.org/10.46793/ICCBI21.431C . .

TY  - CONF
AU  - Stojiljković, Aleksandra
AU  - Stanojević, Ana
AU  - Ivanović-Šašić, Ana
AU  - Čupić, Željko
AU  - Kolar-Anić, Ljiljana
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6410
AB  - An upgraded model of the Hypothalamic-Pituitary-Adrenal (HPA) axis has been developed that 
advances our previously proposed low-dimensional HPA model by including the effects of arginine 
vasopressin (AVP) that is a key modulator of HPA axis function. The upgraded model allows us to 
emulate AVP effects on HPA axis dynamics individually and in synergy with the corticotropin-releasing hormone (CRH). In this work, we examine how coupling of the circadian function through 
summarised reaction steps describing CRH and AVP biosynthesis in the same neuronal cell group of the hypothalamic paraventricular nucleus (PVN) affects HPA axis dynamics. Results of numerical simulations show that coupling of the circadian function through both, CRH and AVP summarised biosynthesis reaction steps simultaneously, emulates best the HPA axis dynamics, in line with literature findings.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Circadian rhythm function coupling to the upgraded hypothalamic-pituitary-adrenal (hpa) axis with incorporated arginine vasopressin
VL  - I
SP  - 246
EP  - 249
UR  - https://hdl.handle.net/21.15107/rcub_cer_6410
ER  - 

@conference{
author = "Stojiljković, Aleksandra and Stanojević, Ana and Ivanović-Šašić, Ana and Čupić, Željko and Kolar-Anić, Ljiljana",
year = "2021",
abstract = "An upgraded model of the Hypothalamic-Pituitary-Adrenal (HPA) axis has been developed that 
advances our previously proposed low-dimensional HPA model by including the effects of arginine 
vasopressin (AVP) that is a key modulator of HPA axis function. The upgraded model allows us to 
emulate AVP effects on HPA axis dynamics individually and in synergy with the corticotropin-releasing hormone (CRH). In this work, we examine how coupling of the circadian function through 
summarised reaction steps describing CRH and AVP biosynthesis in the same neuronal cell group of the hypothalamic paraventricular nucleus (PVN) affects HPA axis dynamics. Results of numerical simulations show that coupling of the circadian function through both, CRH and AVP summarised biosynthesis reaction steps simultaneously, emulates best the HPA axis dynamics, in line with literature findings.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Circadian rhythm function coupling to the upgraded hypothalamic-pituitary-adrenal (hpa) axis with incorporated arginine vasopressin",
volume = "I",
pages = "246-249",
url = "https://hdl.handle.net/21.15107/rcub_cer_6410"
}

Stojiljković, A., Stanojević, A., Ivanović-Šašić, A., Čupić, Ž.,& Kolar-Anić, L.. (2021). Circadian rhythm function coupling to the upgraded hypothalamic-pituitary-adrenal (hpa) axis with incorporated arginine vasopressin. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 246-249.
https://hdl.handle.net/21.15107/rcub_cer_6410

Stojiljković A, Stanojević A, Ivanović-Šašić A, Čupić Ž, Kolar-Anić L. Circadian rhythm function coupling to the upgraded hypothalamic-pituitary-adrenal (hpa) axis with incorporated arginine vasopressin. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:246-249.
https://hdl.handle.net/21.15107/rcub_cer_6410 .

Stojiljković, Aleksandra, Stanojević, Ana, Ivanović-Šašić, Ana, Čupić, Željko, Kolar-Anić, Ljiljana, "Circadian rhythm function coupling to the upgraded hypothalamic-pituitary-adrenal (hpa) axis with incorporated arginine vasopressin" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):246-249,
https://hdl.handle.net/21.15107/rcub_cer_6410 .

TY  - CONF
AU  - Jović-Jovičić, Nataša
AU  - Ilić, Irena
AU  - Ivanović-Šašić, Ana
AU  - Ajduković, Marija
AU  - Milutinović Nikolić, Aleksandra
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6411
AB  - Catalytic degradation of Acid Orange 10 in the presence of Oxone® activated by Co-impregnated acid activated montmorillonite as catalyst was investigated. The catalytic experiments were performed at different temperatures in range from 303 to 333 K in order to determinate kinetics parameters. The kinetics data followed the first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation.
PB  - Society of Physical Chemists of Serbia
C3  - Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
T1  - Kinetic and thermodinamic study of the oxidative catalytic degradation of acid orange 10 in the presence of oxone® and cobalt based catalyst
VL  - I
SP  - 187
EP  - 189
UR  - https://hdl.handle.net/21.15107/rcub_cer_6411
ER  - 

@conference{
author = "Jović-Jovičić, Nataša and Ilić, Irena and Ivanović-Šašić, Ana and Ajduković, Marija and Milutinović Nikolić, Aleksandra",
year = "2021",
abstract = "Catalytic degradation of Acid Orange 10 in the presence of Oxone® activated by Co-impregnated acid activated montmorillonite as catalyst was investigated. The catalytic experiments were performed at different temperatures in range from 303 to 333 K in order to determinate kinetics parameters. The kinetics data followed the first-order kinetics model. The activation energy of the investigated degradation process was calculated according to the Arrhenius equation.",
publisher = "Society of Physical Chemists of Serbia",
journal = "Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia",
title = "Kinetic and thermodinamic study of the oxidative catalytic degradation of acid orange 10 in the presence of oxone® and cobalt based catalyst",
volume = "I",
pages = "187-189",
url = "https://hdl.handle.net/21.15107/rcub_cer_6411"
}

Jović-Jovičić, N., Ilić, I., Ivanović-Šašić, A., Ajduković, M.,& Milutinović Nikolić, A.. (2021). Kinetic and thermodinamic study of the oxidative catalytic degradation of acid orange 10 in the presence of oxone® and cobalt based catalyst. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia
Society of Physical Chemists of Serbia., I, 187-189.
https://hdl.handle.net/21.15107/rcub_cer_6411

Jović-Jovičić N, Ilić I, Ivanović-Šašić A, Ajduković M, Milutinović Nikolić A. Kinetic and thermodinamic study of the oxidative catalytic degradation of acid orange 10 in the presence of oxone® and cobalt based catalyst. in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia. 2021;I:187-189.
https://hdl.handle.net/21.15107/rcub_cer_6411 .

Jović-Jovičić, Nataša, Ilić, Irena, Ivanović-Šašić, Ana, Ajduković, Marija, Milutinović Nikolić, Aleksandra, "Kinetic and thermodinamic study of the oxidative catalytic degradation of acid orange 10 in the presence of oxone® and cobalt based catalyst" in Proceedings - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, Physical Chemistry 2021, September 20-24 2021, Belgrade, Serbia, I (2021):187-189,
https://hdl.handle.net/21.15107/rcub_cer_6411 .

TY  - JOUR
AU  - Bubanja, Itana Nuša
AU  - Ivanović-Šašić, Ana
AU  - Čupić, Željko
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2020
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3701
AB  - Dynamic states with intermittent oscillations consist of a chaotic mixture of large
amplitude relaxation oscillations grouped in bursts, and between them, small-amplitude
sinusoidal oscillations, or even the quiescent parts, known as gaps. In this study,
intermittent dynamic states were generated in Bray–Liebhafsky (BL) oscillatory reaction in
an isothermal continuously-fed, well-stirred tank reactor (CSTR) controled by changes of
specific flow rate. The intermittent states were found between two regular periodic states
and obtained for specific flow rate values from 0.020 to 0.082 min−1 . Phenomenological
analysis based on the quantitative characteristics of intermittent oscillations, as well
as, the largest Lyapunov exponents calculated from experimentally obtained time
series, both indicated the same type of behavior. Namely, fully developed chaos
arises when approaching to the vertical asymptote which is somewhere between two
bifurcations. Hence, this study proposes described route to fully developed chaos in
the Bray-Liebhafsky oscillatory reaction as an explanation for experimentally observed
intermittent dynamics. This is in correlation with our previously obtained results where the
most chaotic intermittent chaos was achieved between the periodic oscillatory dynamic
state and stable steady state, generated in BL under CSTR conditions by varying
temperature and inflow potassium iodate concentration. Moreover, it was shown that,
besides the largest Lyapunov exponent, analysis of chaos in experimentally obtained
intermittent states can be achieved by a simpler approach which involves using the
quantitative characteristics of the BL reaction evolution, that is, the number and length
of gaps and bursts obtained for the various values of specific flow rates.
PB  - Frontiers Media S.A.
T2  - Frontiers in chemistry
T1  - Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence
VL  - 8
SP  - 560274
DO  - 10.3389/fchem.2020.560274
ER  - 

@article{
author = "Bubanja, Itana Nuša and Ivanović-Šašić, Ana and Čupić, Željko and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2020",
abstract = "Dynamic states with intermittent oscillations consist of a chaotic mixture of large
amplitude relaxation oscillations grouped in bursts, and between them, small-amplitude
sinusoidal oscillations, or even the quiescent parts, known as gaps. In this study,
intermittent dynamic states were generated in Bray–Liebhafsky (BL) oscillatory reaction in
an isothermal continuously-fed, well-stirred tank reactor (CSTR) controled by changes of
specific flow rate. The intermittent states were found between two regular periodic states
and obtained for specific flow rate values from 0.020 to 0.082 min−1 . Phenomenological
analysis based on the quantitative characteristics of intermittent oscillations, as well
as, the largest Lyapunov exponents calculated from experimentally obtained time
series, both indicated the same type of behavior. Namely, fully developed chaos
arises when approaching to the vertical asymptote which is somewhere between two
bifurcations. Hence, this study proposes described route to fully developed chaos in
the Bray-Liebhafsky oscillatory reaction as an explanation for experimentally observed
intermittent dynamics. This is in correlation with our previously obtained results where the
most chaotic intermittent chaos was achieved between the periodic oscillatory dynamic
state and stable steady state, generated in BL under CSTR conditions by varying
temperature and inflow potassium iodate concentration. Moreover, it was shown that,
besides the largest Lyapunov exponent, analysis of chaos in experimentally obtained
intermittent states can be achieved by a simpler approach which involves using the
quantitative characteristics of the BL reaction evolution, that is, the number and length
of gaps and bursts obtained for the various values of specific flow rates.",
publisher = "Frontiers Media S.A.",
journal = "Frontiers in chemistry",
title = "Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence",
volume = "8",
pages = "560274",
doi = "10.3389/fchem.2020.560274"
}

Bubanja, I. N., Ivanović-Šašić, A., Čupić, Ž., Anić, S.,& Kolar-Anić, L.. (2020). Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence. in Frontiers in chemistry
Frontiers Media S.A.., 8, 560274.
https://doi.org/10.3389/fchem.2020.560274

Bubanja IN, Ivanović-Šašić A, Čupić Ž, Anić S, Kolar-Anić L. Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence. in Frontiers in chemistry. 2020;8:560274.
doi:10.3389/fchem.2020.560274 .

Bubanja, Itana Nuša, Ivanović-Šašić, Ana, Čupić, Željko, Anić, Slobodan, Kolar-Anić, Ljiljana, "Intermittent Chaos in the CSTR Bray–Liebhafsky Oscillator-Specific Flow Rate Dependence" in Frontiers in chemistry, 8 (2020):560274,
https://doi.org/10.3389/fchem.2020.560274 . .

TY  - JOUR
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3024
AB  - The application of alternating current is advantageous in energy transfer over long distances. It is a well-known fact now, but subject of long conflict in the era of pioneering works in electric power production. There are also some processes in physical chemistry, organic and inorganic chemistry, in biochemistry and related sciences, which take place in opposite directions, with consecutive alternations in time. However, the very existence of alternate reactions, now known as the oscillatory or oscillating reactions, has long been disputed because it was thought that it is contrary
to the basic principles of thermodynamics. Nevertheless, according to our knowledge, there are no oscillatory reactions without catalytic loop as the essential part of a mechanism. There could be a fundamental rule that catalysis is necessary to generate oscillations in concentrations and reaction rates. Particularly, homogeneous oscillatory reactions are often subject of research as relatively simple systems with good chance to clearly define feedbacks responsible for instability phenomena.
However, oscillations can at least equally often be found in heterogeneous catalytic
reactions. Recently, changes in product selectivity was proved when Pd catalyzed
carbonylation of phenylacetylene was moved to the oscillatory dynamic state. With
this simple result, the doors are now open for wide spectrum of research projects
and applications.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Alternating catalytic reactions
VL  - 126
IS  - 2
SP  - 577
EP  - 586
DO  - 10.1007/s11144-018-1501-2
ER  - 

@article{
author = "Čupić, Željko and Ivanović-Šašić, Ana",
year = "2019",
abstract = "The application of alternating current is advantageous in energy transfer over long distances. It is a well-known fact now, but subject of long conflict in the era of pioneering works in electric power production. There are also some processes in physical chemistry, organic and inorganic chemistry, in biochemistry and related sciences, which take place in opposite directions, with consecutive alternations in time. However, the very existence of alternate reactions, now known as the oscillatory or oscillating reactions, has long been disputed because it was thought that it is contrary
to the basic principles of thermodynamics. Nevertheless, according to our knowledge, there are no oscillatory reactions without catalytic loop as the essential part of a mechanism. There could be a fundamental rule that catalysis is necessary to generate oscillations in concentrations and reaction rates. Particularly, homogeneous oscillatory reactions are often subject of research as relatively simple systems with good chance to clearly define feedbacks responsible for instability phenomena.
However, oscillations can at least equally often be found in heterogeneous catalytic
reactions. Recently, changes in product selectivity was proved when Pd catalyzed
carbonylation of phenylacetylene was moved to the oscillatory dynamic state. With
this simple result, the doors are now open for wide spectrum of research projects
and applications.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Alternating catalytic reactions",
volume = "126",
number = "2",
pages = "577-586",
doi = "10.1007/s11144-018-1501-2"
}

Čupić, Ž.,& Ivanović-Šašić, A.. (2019). Alternating catalytic reactions. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 126(2), 577-586.
https://doi.org/10.1007/s11144-018-1501-2

Čupić Ž, Ivanović-Šašić A. Alternating catalytic reactions. in Reaction Kinetics, Mechanisms and Catalysis. 2019;126(2):577-586.
doi:10.1007/s11144-018-1501-2 .

Čupić, Željko, Ivanović-Šašić, Ana, "Alternating catalytic reactions" in Reaction Kinetics, Mechanisms and Catalysis, 126, no. 2 (2019):577-586,
https://doi.org/10.1007/s11144-018-1501-2 . .

TY  - JOUR
AU  - Nakarada, Đura
AU  - Pejin, Boris
AU  - Dimić, Dušan
AU  - Ivanović-Šašić, Ana
AU  - Mojović, Zorica
AU  - Mojović, Miloš
PY  - 2019
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/3027
AB  - The electrochemistry of catecholamine neurotransmitters and their precursor l-dopa has been widely studied due to their relevance as biologically important compounds. The detection of these compounds from aqueous solution is hindered by the coexistence of quinone or hydroquinone. However, it was suggested that quinones adsorbed on the electrode surface can enhance catechol detection. In order to estimate the degree of interaction between quinones and l-dopa, cyclic voltammetry and UV-Vis spectroscopic study was performed. A sesquiterpenoid hydroquinone, isolated from the marine sponge Dysidea avara (avarol), has been used in this study. The change of apparent heterogeneous rate constant with different avarol/l-dopa ratio indicated that charge transfer could be enhanced at some extent. In addition to this, the obtained results for avarol and hydroquinone (its structural element) were compared. UV-Vis spectroscopic analysis confirmed interaction between l-dopa and avarol or hydroquinone. Taken all together, the interaction of l-dopa was stronger with hydroquinone than with avarol, presumably reflecting the conformational restrains of avarol caused by its terpenoid moiety.
PB  - Springer
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Electrochemical and spectroscopic study of l‑dopa interaction with avarol
VL  - 127
IS  - 1
SP  - 219
EP  - 229
DO  - 10.1007/s11144-019-01575-z
ER  - 

@article{
author = "Nakarada, Đura and Pejin, Boris and Dimić, Dušan and Ivanović-Šašić, Ana and Mojović, Zorica and Mojović, Miloš",
year = "2019",
abstract = "The electrochemistry of catecholamine neurotransmitters and their precursor l-dopa has been widely studied due to their relevance as biologically important compounds. The detection of these compounds from aqueous solution is hindered by the coexistence of quinone or hydroquinone. However, it was suggested that quinones adsorbed on the electrode surface can enhance catechol detection. In order to estimate the degree of interaction between quinones and l-dopa, cyclic voltammetry and UV-Vis spectroscopic study was performed. A sesquiterpenoid hydroquinone, isolated from the marine sponge Dysidea avara (avarol), has been used in this study. The change of apparent heterogeneous rate constant with different avarol/l-dopa ratio indicated that charge transfer could be enhanced at some extent. In addition to this, the obtained results for avarol and hydroquinone (its structural element) were compared. UV-Vis spectroscopic analysis confirmed interaction between l-dopa and avarol or hydroquinone. Taken all together, the interaction of l-dopa was stronger with hydroquinone than with avarol, presumably reflecting the conformational restrains of avarol caused by its terpenoid moiety.",
publisher = "Springer",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Electrochemical and spectroscopic study of l‑dopa interaction with avarol",
volume = "127",
number = "1",
pages = "219-229",
doi = "10.1007/s11144-019-01575-z"
}

Nakarada, Đ., Pejin, B., Dimić, D., Ivanović-Šašić, A., Mojović, Z.,& Mojović, M.. (2019). Electrochemical and spectroscopic study of l‑dopa interaction with avarol. in Reaction Kinetics, Mechanisms and Catalysis
Springer., 127(1), 219-229.
https://doi.org/10.1007/s11144-019-01575-z

Nakarada Đ, Pejin B, Dimić D, Ivanović-Šašić A, Mojović Z, Mojović M. Electrochemical and spectroscopic study of l‑dopa interaction with avarol. in Reaction Kinetics, Mechanisms and Catalysis. 2019;127(1):219-229.
doi:10.1007/s11144-019-01575-z .

Nakarada, Đura, Pejin, Boris, Dimić, Dušan, Ivanović-Šašić, Ana, Mojović, Zorica, Mojović, Miloš, "Electrochemical and spectroscopic study of l‑dopa interaction with avarol" in Reaction Kinetics, Mechanisms and Catalysis, 127, no. 1 (2019):219-229,
https://doi.org/10.1007/s11144-019-01575-z . .

TY  - JOUR
AU  - Ivanović-Šašić, Ana
AU  - Novaković, Tatjana
AU  - Mojović, Zorica
AU  - Čupić, Željko
AU  - Jovanović, Dušan M.
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2385
AB  - Pure and nickel-modified alumina powders with different porosity were synthesized and applied on the glassy carbon electrode by means of Nafion polymer. The data obtained from the nitrogen adsorption-desorption isotherm confirmed that the pore structures in these materials are complex and tend to be made up of interconnected networks of pores of different size and shape. The addition of Ni2+ ions caused the changes in the textural properties of the samples. The influence of porosity on the electrochemical behavior of modified electrodes in quasi-reversible process was tested by cyclic voltammetry. Numerical correlations between electrochemical responses of GCE modified with alumina samples and textural properties have been established.
PB  - International Institute for the Science of Sintering, Beograd
T2  - Science of Sintering
T1  - Cyclic Voltammetric Study of the Influence of Porosity on Electrochemical Response of Nickel-Alumina Modified Glassy Carbon Electrode
VL  - 50
IS  - 3
SP  - 313
EP  - 321
DO  - 10.2298/SOS1803313I
ER  - 

@article{
author = "Ivanović-Šašić, Ana and Novaković, Tatjana and Mojović, Zorica and Čupić, Željko and Jovanović, Dušan M.",
year = "2018",
abstract = "Pure and nickel-modified alumina powders with different porosity were synthesized and applied on the glassy carbon electrode by means of Nafion polymer. The data obtained from the nitrogen adsorption-desorption isotherm confirmed that the pore structures in these materials are complex and tend to be made up of interconnected networks of pores of different size and shape. The addition of Ni2+ ions caused the changes in the textural properties of the samples. The influence of porosity on the electrochemical behavior of modified electrodes in quasi-reversible process was tested by cyclic voltammetry. Numerical correlations between electrochemical responses of GCE modified with alumina samples and textural properties have been established.",
publisher = "International Institute for the Science of Sintering, Beograd",
journal = "Science of Sintering",
title = "Cyclic Voltammetric Study of the Influence of Porosity on Electrochemical Response of Nickel-Alumina Modified Glassy Carbon Electrode",
volume = "50",
number = "3",
pages = "313-321",
doi = "10.2298/SOS1803313I"
}

Ivanović-Šašić, A., Novaković, T., Mojović, Z., Čupić, Ž.,& Jovanović, D. M.. (2018). Cyclic Voltammetric Study of the Influence of Porosity on Electrochemical Response of Nickel-Alumina Modified Glassy Carbon Electrode. in Science of Sintering
International Institute for the Science of Sintering, Beograd., 50(3), 313-321.
https://doi.org/10.2298/SOS1803313I

Ivanović-Šašić A, Novaković T, Mojović Z, Čupić Ž, Jovanović DM. Cyclic Voltammetric Study of the Influence of Porosity on Electrochemical Response of Nickel-Alumina Modified Glassy Carbon Electrode. in Science of Sintering. 2018;50(3):313-321.
doi:10.2298/SOS1803313I .

Ivanović-Šašić, Ana, Novaković, Tatjana, Mojović, Zorica, Čupić, Željko, Jovanović, Dušan M., "Cyclic Voltammetric Study of the Influence of Porosity on Electrochemical Response of Nickel-Alumina Modified Glassy Carbon Electrode" in Science of Sintering, 50, no. 3 (2018):313-321,
https://doi.org/10.2298/SOS1803313I . .

TY  - JOUR
AU  - Macesic, Stevan
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
AU  - Anić, Slobodan
AU  - Radenkovic, Mirjana
AU  - Pejić, Nataša
AU  - Kolar-Anić, Ljiljana
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2461
AB  - In this paper, we intend to show the importance of the bifurcation analysis in understanding of an oscillatory process. Hence, we use the bifurcation diagram of the Bray-Liebhafsky reaction performed in continuous well-stirred tank reactor under controlled temperature variations for the determination of the activation energies as well as rate constants of particular steps appearing in the kinetic model of oscillatory reaction mechanism. This approach has led us to the development of general procedure for treatment of experimentally obtained data and extracting kinetic parameters from them, which was very important considering that some rate constants of the already proposed model could not be determined experimentally and have to be fitted (or guessed). Also, the proposed approach has the potential to inspire the refinement of already proposed models and the development of a new one that will be able to reproduce experimentally obtained system's dynamical features more successfully. In particular, the dynamic states of the Bray-Liebhafsky oscillatory reaction have been analyzed experimentally and numerically using already proposed model together with qualitative and quantitative analysis of bifurcation diagrams in both cases.
PB  - Springer Netherlands
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Bifurcation analysis: a tool for determining model parameters of the considered process
VL  - 123
IS  - 1
SP  - 31
EP  - 45
DO  - 10.1007/s11144-017-1324-6
ER  - 

@article{
author = "Macesic, Stevan and Čupić, Željko and Ivanović-Šašić, Ana and Anić, Slobodan and Radenkovic, Mirjana and Pejić, Nataša and Kolar-Anić, Ljiljana",
year = "2018",
abstract = "In this paper, we intend to show the importance of the bifurcation analysis in understanding of an oscillatory process. Hence, we use the bifurcation diagram of the Bray-Liebhafsky reaction performed in continuous well-stirred tank reactor under controlled temperature variations for the determination of the activation energies as well as rate constants of particular steps appearing in the kinetic model of oscillatory reaction mechanism. This approach has led us to the development of general procedure for treatment of experimentally obtained data and extracting kinetic parameters from them, which was very important considering that some rate constants of the already proposed model could not be determined experimentally and have to be fitted (or guessed). Also, the proposed approach has the potential to inspire the refinement of already proposed models and the development of a new one that will be able to reproduce experimentally obtained system's dynamical features more successfully. In particular, the dynamic states of the Bray-Liebhafsky oscillatory reaction have been analyzed experimentally and numerically using already proposed model together with qualitative and quantitative analysis of bifurcation diagrams in both cases.",
publisher = "Springer Netherlands",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Bifurcation analysis: a tool for determining model parameters of the considered process",
volume = "123",
number = "1",
pages = "31-45",
doi = "10.1007/s11144-017-1324-6"
}

Macesic, S., Čupić, Ž., Ivanović-Šašić, A., Anić, S., Radenkovic, M., Pejić, N.,& Kolar-Anić, L.. (2018). Bifurcation analysis: a tool for determining model parameters of the considered process. in Reaction Kinetics, Mechanisms and Catalysis
Springer Netherlands., 123(1), 31-45.
https://doi.org/10.1007/s11144-017-1324-6

Macesic S, Čupić Ž, Ivanović-Šašić A, Anić S, Radenkovic M, Pejić N, Kolar-Anić L. Bifurcation analysis: a tool for determining model parameters of the considered process. in Reaction Kinetics, Mechanisms and Catalysis. 2018;123(1):31-45.
doi:10.1007/s11144-017-1324-6 .

Macesic, Stevan, Čupić, Željko, Ivanović-Šašić, Ana, Anić, Slobodan, Radenkovic, Mirjana, Pejić, Nataša, Kolar-Anić, Ljiljana, "Bifurcation analysis: a tool for determining model parameters of the considered process" in Reaction Kinetics, Mechanisms and Catalysis, 123, no. 1 (2018):31-45,
https://doi.org/10.1007/s11144-017-1324-6 . .

TY  - JOUR
AU  - Adžemović, Mesud R.
AU  - Ivanović-Šašić, Ana
AU  - Nikolic, Milos D.
AU  - Aleksić, Dimitrije J.
AU  - Stevanović, Maja
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2091
AB  - The problems of environment and evaluation of natural capital belong to the phenomenology of externalities, and the requirements of environmental economics are ever more oriented towards the elaboration of the ecological-economic category of the externalization of internal expenses, wherefrom reasons for the introduction of ecological-economic instruments, before all payments for pollutions, ensue. Demystification of the negative conviction relating ecological payments as taxes is very important, since it must be shown that ecological payments correct, mitigate or remove externalities. Environmental protection is a complex system and it consists in a set of rules, measures and instruments that are applied for the surveillance of pollution sources, and shaping of instruments for environmental protection is a complex process intended for the accomplishment of established ecological goals. Among all instruments available for bridging the gap of internalization and exerting a significant effect on polluters to diminish their emissions of pollution, the ecological and economic ones are most important. The results of our investigation have demonstrated that it is necessary to reshape the current set of instruments regarding protection of vital functions of nature and an efficient environmental protection, and one of the key cognitions is that the scientific and professional public must not be excluded from the appraisals of creating and redesigning the instruments of environmental protection. These assertions have their foundation in the premise that the significance of elements of the social dimension in sustainable development is to a great extent determined by the level of environmental degradation and reduction in capacity of renewable sources. The paper, approach and data processing of the conducted research offer a new model and new elements of methodology for establishing the state and quality of the environment, whereby social-economic criteria of research (a socio-economic laboratory) are introduced into the fundamental analysis of the condition of crucial media of the environment, but also into shaping a more efficacious instrument set of protection. In such a way, a substantial contribution is given to the affirmation of a holistic and inter-disciplinary approach in the investigation and understanding the phenomenon of contemporary environmental reality, especially the central media of the environment (water, air, soil).
PB  - Association of Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - REDESIGNING CURRENT INSTRUMENTS AS A PRECONDITION FOR A MORE EFFECTIVE ENVIRONMENTAL PROTECTION
VL  - 71
IS  - 4
SP  - 343
EP  - 350
DO  - 10.2298/HEMIND160620045A
ER  - 

@article{
author = "Adžemović, Mesud R. and Ivanović-Šašić, Ana and Nikolic, Milos D. and Aleksić, Dimitrije J. and Stevanović, Maja",
year = "2017",
abstract = "The problems of environment and evaluation of natural capital belong to the phenomenology of externalities, and the requirements of environmental economics are ever more oriented towards the elaboration of the ecological-economic category of the externalization of internal expenses, wherefrom reasons for the introduction of ecological-economic instruments, before all payments for pollutions, ensue. Demystification of the negative conviction relating ecological payments as taxes is very important, since it must be shown that ecological payments correct, mitigate or remove externalities. Environmental protection is a complex system and it consists in a set of rules, measures and instruments that are applied for the surveillance of pollution sources, and shaping of instruments for environmental protection is a complex process intended for the accomplishment of established ecological goals. Among all instruments available for bridging the gap of internalization and exerting a significant effect on polluters to diminish their emissions of pollution, the ecological and economic ones are most important. The results of our investigation have demonstrated that it is necessary to reshape the current set of instruments regarding protection of vital functions of nature and an efficient environmental protection, and one of the key cognitions is that the scientific and professional public must not be excluded from the appraisals of creating and redesigning the instruments of environmental protection. These assertions have their foundation in the premise that the significance of elements of the social dimension in sustainable development is to a great extent determined by the level of environmental degradation and reduction in capacity of renewable sources. The paper, approach and data processing of the conducted research offer a new model and new elements of methodology for establishing the state and quality of the environment, whereby social-economic criteria of research (a socio-economic laboratory) are introduced into the fundamental analysis of the condition of crucial media of the environment, but also into shaping a more efficacious instrument set of protection. In such a way, a substantial contribution is given to the affirmation of a holistic and inter-disciplinary approach in the investigation and understanding the phenomenon of contemporary environmental reality, especially the central media of the environment (water, air, soil).",
publisher = "Association of Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "REDESIGNING CURRENT INSTRUMENTS AS A PRECONDITION FOR A MORE EFFECTIVE ENVIRONMENTAL PROTECTION",
volume = "71",
number = "4",
pages = "343-350",
doi = "10.2298/HEMIND160620045A"
}

Adžemović, M. R., Ivanović-Šašić, A., Nikolic, M. D., Aleksić, D. J.,& Stevanović, M.. (2017). REDESIGNING CURRENT INSTRUMENTS AS A PRECONDITION FOR A MORE EFFECTIVE ENVIRONMENTAL PROTECTION. in Hemijska industrija
Association of Chemical Engineers of Serbia., 71(4), 343-350.
https://doi.org/10.2298/HEMIND160620045A

Adžemović MR, Ivanović-Šašić A, Nikolic MD, Aleksić DJ, Stevanović M. REDESIGNING CURRENT INSTRUMENTS AS A PRECONDITION FOR A MORE EFFECTIVE ENVIRONMENTAL PROTECTION. in Hemijska industrija. 2017;71(4):343-350.
doi:10.2298/HEMIND160620045A .

Adžemović, Mesud R., Ivanović-Šašić, Ana, Nikolic, Milos D., Aleksić, Dimitrije J., Stevanović, Maja, "REDESIGNING CURRENT INSTRUMENTS AS A PRECONDITION FOR A MORE EFFECTIVE ENVIRONMENTAL PROTECTION" in Hemijska industrija, 71, no. 4 (2017):343-350,
https://doi.org/10.2298/HEMIND160620045A . .

TY  - JOUR
AU  - Bubanja, Itana Nuša
AU  - Ivanović-Šašić, Ana
AU  - Čupić, Željko
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2159
AB  - Chaotic dynamic states with intermittent oscillations were generated in a Bray-Liebhafsky (BL) oscillatory reaction in an isothermal open reactor i.e., in the continuously-fed well-stirred tank reactor (CSTR) when the inflow concentration of potassium iodate was the control parameter. They are found between periodic oscillations obtained when [KIO3](0)  LT  3.00 x 10(-2) M and stable steady states when [KIO3](0) > 4.10 x 10(-2) M. It was shown that the most chaotic states obtained experimentally somewhere in the middle of this region are in high correlation with results obtained by means of largest Lyapunov exponents and phenomenological analysis based on the quantitative characteristics of intermittent oscillations.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Russian Journal of Physical Chemistry A
T1  - Intermittent Chaos in the Bray-Liebhafsky Oscillator. Dependence of Dynamic States on the Iodate Concentration
VL  - 91
IS  - 13
SP  - 2525
EP  - 2529
DO  - 10.1134/S0036024417130076
ER  - 

@article{
author = "Bubanja, Itana Nuša and Ivanović-Šašić, Ana and Čupić, Željko and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2017",
abstract = "Chaotic dynamic states with intermittent oscillations were generated in a Bray-Liebhafsky (BL) oscillatory reaction in an isothermal open reactor i.e., in the continuously-fed well-stirred tank reactor (CSTR) when the inflow concentration of potassium iodate was the control parameter. They are found between periodic oscillations obtained when [KIO3](0)  LT  3.00 x 10(-2) M and stable steady states when [KIO3](0) > 4.10 x 10(-2) M. It was shown that the most chaotic states obtained experimentally somewhere in the middle of this region are in high correlation with results obtained by means of largest Lyapunov exponents and phenomenological analysis based on the quantitative characteristics of intermittent oscillations.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Russian Journal of Physical Chemistry A",
title = "Intermittent Chaos in the Bray-Liebhafsky Oscillator. Dependence of Dynamic States on the Iodate Concentration",
volume = "91",
number = "13",
pages = "2525-2529",
doi = "10.1134/S0036024417130076"
}

Bubanja, I. N., Ivanović-Šašić, A., Čupić, Ž., Anić, S.,& Kolar-Anić, L.. (2017). Intermittent Chaos in the Bray-Liebhafsky Oscillator. Dependence of Dynamic States on the Iodate Concentration. in Russian Journal of Physical Chemistry A
Maik Nauka/Interperiodica/Springer, New York., 91(13), 2525-2529.
https://doi.org/10.1134/S0036024417130076

Bubanja IN, Ivanović-Šašić A, Čupić Ž, Anić S, Kolar-Anić L. Intermittent Chaos in the Bray-Liebhafsky Oscillator. Dependence of Dynamic States on the Iodate Concentration. in Russian Journal of Physical Chemistry A. 2017;91(13):2525-2529.
doi:10.1134/S0036024417130076 .

Bubanja, Itana Nuša, Ivanović-Šašić, Ana, Čupić, Željko, Anić, Slobodan, Kolar-Anić, Ljiljana, "Intermittent Chaos in the Bray-Liebhafsky Oscillator. Dependence of Dynamic States on the Iodate Concentration" in Russian Journal of Physical Chemistry A, 91, no. 13 (2017):2525-2529,
https://doi.org/10.1134/S0036024417130076 . .

TY  - JOUR
AU  - Mudrinić, Tihana
AU  - Mojović, Zorica
AU  - Banković, Predrag
AU  - Jović-Jovičić, Nataša
AU  - Ivanović-Šašić, Ana
AU  - Milutinović Nikolić, Aleksandra
AU  - Jovanović, Dušan M.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2267
AB  - The electrooxidation of glucose on a polycrystalline gold electrode from alkaline and saline solutions was investigated. The influence of Nafion on the oxidation of glucose under the same conditions was also studied. The presence of Nafion on the surface of a polycrystalline gold electrode decreased the rate of glucose oxidation in alkaline solution. The sensitivity of glucose determination was diminished. However, processes occurring at the electrode were clearly separated. Stable cyclic voltammogram of a polycrystalline gold electrode was obtained in saline solution. The addition of glucose to saline solution initiated the reaction of gold dissolution. The presence of Nafion on the electrode surface prevented the formation of hydrous gold oxide. The addition of glucose to saline solution led to the passivation of the Nafion-covered gold electrode. The gold electrode pretreated in alkaline solution and covered with Nafion was used for glucose detection in saline solution. The linear behavior was obtained in the concentration range from 2 to 10 mM with the slope of 0.0015 mA/mM and the coefficient of 0.95. The chronoampermetric response of the pretreated gold electrode covered with Nafion was also tested.
PB  - Springer Heidelberg, Heidelberg
T2  - Gold Bulletin
T1  - Influence of Nafion on detection of glucose on a polycrystalline gold electrode from alkaline and saline solutions
VL  - 50
IS  - 2
SP  - 191
EP  - 201
DO  - 10.1007/s13404-017-0209-9
ER  - 

@article{
author = "Mudrinić, Tihana and Mojović, Zorica and Banković, Predrag and Jović-Jovičić, Nataša and Ivanović-Šašić, Ana and Milutinović Nikolić, Aleksandra and Jovanović, Dušan M.",
year = "2017",
abstract = "The electrooxidation of glucose on a polycrystalline gold electrode from alkaline and saline solutions was investigated. The influence of Nafion on the oxidation of glucose under the same conditions was also studied. The presence of Nafion on the surface of a polycrystalline gold electrode decreased the rate of glucose oxidation in alkaline solution. The sensitivity of glucose determination was diminished. However, processes occurring at the electrode were clearly separated. Stable cyclic voltammogram of a polycrystalline gold electrode was obtained in saline solution. The addition of glucose to saline solution initiated the reaction of gold dissolution. The presence of Nafion on the electrode surface prevented the formation of hydrous gold oxide. The addition of glucose to saline solution led to the passivation of the Nafion-covered gold electrode. The gold electrode pretreated in alkaline solution and covered with Nafion was used for glucose detection in saline solution. The linear behavior was obtained in the concentration range from 2 to 10 mM with the slope of 0.0015 mA/mM and the coefficient of 0.95. The chronoampermetric response of the pretreated gold electrode covered with Nafion was also tested.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Gold Bulletin",
title = "Influence of Nafion on detection of glucose on a polycrystalline gold electrode from alkaline and saline solutions",
volume = "50",
number = "2",
pages = "191-201",
doi = "10.1007/s13404-017-0209-9"
}

Mudrinić, T., Mojović, Z., Banković, P., Jović-Jovičić, N., Ivanović-Šašić, A., Milutinović Nikolić, A.,& Jovanović, D. M.. (2017). Influence of Nafion on detection of glucose on a polycrystalline gold electrode from alkaline and saline solutions. in Gold Bulletin
Springer Heidelberg, Heidelberg., 50(2), 191-201.
https://doi.org/10.1007/s13404-017-0209-9

Mudrinić T, Mojović Z, Banković P, Jović-Jovičić N, Ivanović-Šašić A, Milutinović Nikolić A, Jovanović DM. Influence of Nafion on detection of glucose on a polycrystalline gold electrode from alkaline and saline solutions. in Gold Bulletin. 2017;50(2):191-201.
doi:10.1007/s13404-017-0209-9 .

Mudrinić, Tihana, Mojović, Zorica, Banković, Predrag, Jović-Jovičić, Nataša, Ivanović-Šašić, Ana, Milutinović Nikolić, Aleksandra, Jovanović, Dušan M., "Influence of Nafion on detection of glucose on a polycrystalline gold electrode from alkaline and saline solutions" in Gold Bulletin, 50, no. 2 (2017):191-201,
https://doi.org/10.1007/s13404-017-0209-9 . .

TY  - CONF
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ivanović-Šašić, Ana
AU  - Nedić Vasiljević, Bojana
AU  - Jović-Jovičić, Nataša
AU  - Jovanović, Dušan M.
AU  - Banković, Predrag
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6332
AB  - Heterogneous Fenton-like reaction is one of the most efficient solutions for the
degradation of organic pollutants in water. A variant of this reaction involves the application
of Oxone reagent, based on potassium peroxymonosulfate. Oxone, in conjunction with cobalt,
is the source of sulfate radicals. These radicals are very efficient oxidants because of their
high standard reduction potential at neutral pH.
In this work Co-impregnated Al-pillared clay (CoAP2) was used as heterogeneous
catalyst in the degradation of Tartrazine azo-dye in aqueous solutions. For this purpose, Namontmorillonite
source clay from Wyoming, USA, with particle diameters of up to 2×10-6 m
was submitted to pillaring with aluminium (Keggin ions) and subsequent impregnation with
Co(NO3)2 followed by calcination. Morphological and textural characterization as well as
phase and chemical characterization were performed on the obtained material.
Catalytic degadation of Tartrazine using CoAP2 and Oxone was investigated with
respect to reaction temperature in the range from 30–70 °C and monitored using UV-Vis
spectroscopy. The obtained spectra indicated that solution decolorization was efficient.
Increasing temperature increased decolorization efficiency, and led to the degradation of the
dye, the formation and subsequent disappearance of different reaction products. The catalyst
showed to be stable under investigated conditions.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application VI, 18-20.09.2017, Belgrade, Serbia
T1  - Tartrazine azo-dye degradation using Co-impregnated Al-pillared clay and Oxone: influence of temperature
SP  - 72
EP  - 72
UR  - https://hdl.handle.net/21.15107/rcub_cer_6332
ER  - 

@conference{
author = "Marinović, Sanja and Mudrinić, Tihana and Ivanović-Šašić, Ana and Nedić Vasiljević, Bojana and Jović-Jovičić, Nataša and Jovanović, Dušan M. and Banković, Predrag",
year = "2017",
abstract = "Heterogneous Fenton-like reaction is one of the most efficient solutions for the
degradation of organic pollutants in water. A variant of this reaction involves the application
of Oxone reagent, based on potassium peroxymonosulfate. Oxone, in conjunction with cobalt,
is the source of sulfate radicals. These radicals are very efficient oxidants because of their
high standard reduction potential at neutral pH.
In this work Co-impregnated Al-pillared clay (CoAP2) was used as heterogeneous
catalyst in the degradation of Tartrazine azo-dye in aqueous solutions. For this purpose, Namontmorillonite
source clay from Wyoming, USA, with particle diameters of up to 2×10-6 m
was submitted to pillaring with aluminium (Keggin ions) and subsequent impregnation with
Co(NO3)2 followed by calcination. Morphological and textural characterization as well as
phase and chemical characterization were performed on the obtained material.
Catalytic degadation of Tartrazine using CoAP2 and Oxone was investigated with
respect to reaction temperature in the range from 30–70 °C and monitored using UV-Vis
spectroscopy. The obtained spectra indicated that solution decolorization was efficient.
Increasing temperature increased decolorization efficiency, and led to the degradation of the
dye, the formation and subsequent disappearance of different reaction products. The catalyst
showed to be stable under investigated conditions.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application VI, 18-20.09.2017, Belgrade, Serbia",
title = "Tartrazine azo-dye degradation using Co-impregnated Al-pillared clay and Oxone: influence of temperature",
pages = "72-72",
url = "https://hdl.handle.net/21.15107/rcub_cer_6332"
}

Marinović, S., Mudrinić, T., Ivanović-Šašić, A., Nedić Vasiljević, B., Jović-Jovičić, N., Jovanović, D. M.,& Banković, P.. (2017). Tartrazine azo-dye degradation using Co-impregnated Al-pillared clay and Oxone: influence of temperature. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application VI, 18-20.09.2017, Belgrade, Serbia
Serbian Ceramic Society., 72-72.
https://hdl.handle.net/21.15107/rcub_cer_6332

Marinović S, Mudrinić T, Ivanović-Šašić A, Nedić Vasiljević B, Jović-Jovičić N, Jovanović DM, Banković P. Tartrazine azo-dye degradation using Co-impregnated Al-pillared clay and Oxone: influence of temperature. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application VI, 18-20.09.2017, Belgrade, Serbia. 2017;:72-72.
https://hdl.handle.net/21.15107/rcub_cer_6332 .

Marinović, Sanja, Mudrinić, Tihana, Ivanović-Šašić, Ana, Nedić Vasiljević, Bojana, Jović-Jovičić, Nataša, Jovanović, Dušan M., Banković, Predrag, "Tartrazine azo-dye degradation using Co-impregnated Al-pillared clay and Oxone: influence of temperature" in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application VI, 18-20.09.2017, Belgrade, Serbia (2017):72-72,
https://hdl.handle.net/21.15107/rcub_cer_6332 .

TY  - JOUR
AU  - Čupić, Željko
AU  - Ivanović-Šašić, Ana
AU  - Blagojević, Stevan
AU  - Blagojević, Slavica
AU  - Kolar-Anić, Ljiljana
AU  - Anić, Slobodan
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2013
AB  - By numerically simulated Bray-Liebhafsky (BL) reaction under a continuously fed well stirred tank reactor (CSTR) conditions, we discussed the attractors and Poincar, 1D maps with respect to flow rate as the control parameter. The new technique of the return maps from transient trajectories over the slow manifold is developed and applied in order to explore its multilayered structure related to dynamical states (periodic and aperiodic -chaotic oscillating modes) of the system. Kinetic relations underlying the slow manifold structure are briefly discussed.
PB  - Springer Netherlands
T2  - Reaction Kinetics, Mechanisms and Catalysis
T1  - Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model
VL  - 118
IS  - 1
SP  - 27
EP  - 38
DO  - 10.1007/s11144-016-0998-5
ER  - 

@article{
author = "Čupić, Željko and Ivanović-Šašić, Ana and Blagojević, Stevan and Blagojević, Slavica and Kolar-Anić, Ljiljana and Anić, Slobodan",
year = "2016",
abstract = "By numerically simulated Bray-Liebhafsky (BL) reaction under a continuously fed well stirred tank reactor (CSTR) conditions, we discussed the attractors and Poincar, 1D maps with respect to flow rate as the control parameter. The new technique of the return maps from transient trajectories over the slow manifold is developed and applied in order to explore its multilayered structure related to dynamical states (periodic and aperiodic -chaotic oscillating modes) of the system. Kinetic relations underlying the slow manifold structure are briefly discussed.",
publisher = "Springer Netherlands",
journal = "Reaction Kinetics, Mechanisms and Catalysis",
title = "Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model",
volume = "118",
number = "1",
pages = "27-38",
doi = "10.1007/s11144-016-0998-5"
}

Čupić, Ž., Ivanović-Šašić, A., Blagojević, S., Blagojević, S., Kolar-Anić, L.,& Anić, S.. (2016). Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model. in Reaction Kinetics, Mechanisms and Catalysis
Springer Netherlands., 118(1), 27-38.
https://doi.org/10.1007/s11144-016-0998-5

Čupić Ž, Ivanović-Šašić A, Blagojević S, Blagojević S, Kolar-Anić L, Anić S. Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model. in Reaction Kinetics, Mechanisms and Catalysis. 2016;118(1):27-38.
doi:10.1007/s11144-016-0998-5 .

Čupić, Željko, Ivanović-Šašić, Ana, Blagojević, Stevan, Blagojević, Slavica, Kolar-Anić, Ljiljana, Anić, Slobodan, "Return map analysis of the highly nonlinear Bray-Liebhafsky reaction model" in Reaction Kinetics, Mechanisms and Catalysis, 118, no. 1 (2016):27-38,
https://doi.org/10.1007/s11144-016-0998-5 . .

TY  - JOUR
AU  - Bubanja, Itana Nuša
AU  - Macesic, Stevan R.
AU  - Ivanović-Šašić, Ana
AU  - Čupić, Željko
AU  - Anić, Slobodan
AU  - Kolar-Anić, Ljiljana
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2037
AB  - Intermittent oscillations as a chaotic mixture of large amplitude relaxation oscillations, grouped in bursts and small-amplitude sinusoidal ones or even quiescent parts between them known as gaps, were found and examined in the Bray-Liebhafsky (BL) reaction performed in CSTR under controlled temperature variations. They were obtained in a narrow temperature range from 61.0 degrees C to 63.1 degrees C, where 61.0 degrees C is the critical temperature for burst emergence from the stable steady state and 63.1 degrees C is the critical temperature for gap emergence from regular oscillations. Since intermittencies appear gradually from the regular oscillatory state, and no hysteresis was obtained with decreasing/increasing temperature in the vicinity of these two bifurcations, a linear relationship between (tau(B)/tau)(2) and (tau(G)/tau)(2) (where tau(B), tau(G) and tau denotes duration of bursts, gaps, and whole experiment, respectively), as a function of the temperature as the control parameter, was expected and obtained. Although these intermittent oscillations are chaotic with respect to the lengths of individual gaps as well as bursts, their deterministic behavior related to temperature was additionally established. Thus, the number of bursts or gaps per unit of time (N-B/tau and N-G/tau) has the form of a normal distribution function over the temperature range in the region where intermittencies are obtained. Temperature dependence of the Lyapunov exponents was also described by a function of the normal distribution form. Hence, we established some regularities in the chaotic behavior of intermittent oscillations that are common in life but difficult for determinations.
PB  - Royal Soc Chemistry, Cambridge
T2  - Physical Chemistry Chemical Physics
T1  - Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence
VL  - 18
IS  - 14
SP  - 9770
EP  - 9778
DO  - 10.1039/c6cp00759g
ER  - 

@article{
author = "Bubanja, Itana Nuša and Macesic, Stevan R. and Ivanović-Šašić, Ana and Čupić, Željko and Anić, Slobodan and Kolar-Anić, Ljiljana",
year = "2016",
abstract = "Intermittent oscillations as a chaotic mixture of large amplitude relaxation oscillations, grouped in bursts and small-amplitude sinusoidal ones or even quiescent parts between them known as gaps, were found and examined in the Bray-Liebhafsky (BL) reaction performed in CSTR under controlled temperature variations. They were obtained in a narrow temperature range from 61.0 degrees C to 63.1 degrees C, where 61.0 degrees C is the critical temperature for burst emergence from the stable steady state and 63.1 degrees C is the critical temperature for gap emergence from regular oscillations. Since intermittencies appear gradually from the regular oscillatory state, and no hysteresis was obtained with decreasing/increasing temperature in the vicinity of these two bifurcations, a linear relationship between (tau(B)/tau)(2) and (tau(G)/tau)(2) (where tau(B), tau(G) and tau denotes duration of bursts, gaps, and whole experiment, respectively), as a function of the temperature as the control parameter, was expected and obtained. Although these intermittent oscillations are chaotic with respect to the lengths of individual gaps as well as bursts, their deterministic behavior related to temperature was additionally established. Thus, the number of bursts or gaps per unit of time (N-B/tau and N-G/tau) has the form of a normal distribution function over the temperature range in the region where intermittencies are obtained. Temperature dependence of the Lyapunov exponents was also described by a function of the normal distribution form. Hence, we established some regularities in the chaotic behavior of intermittent oscillations that are common in life but difficult for determinations.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Physical Chemistry Chemical Physics",
title = "Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence",
volume = "18",
number = "14",
pages = "9770-9778",
doi = "10.1039/c6cp00759g"
}

Bubanja, I. N., Macesic, S. R., Ivanović-Šašić, A., Čupić, Ž., Anić, S.,& Kolar-Anić, L.. (2016). Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence. in Physical Chemistry Chemical Physics
Royal Soc Chemistry, Cambridge., 18(14), 9770-9778.
https://doi.org/10.1039/c6cp00759g

Bubanja IN, Macesic SR, Ivanović-Šašić A, Čupić Ž, Anić S, Kolar-Anić L. Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence. in Physical Chemistry Chemical Physics. 2016;18(14):9770-9778.
doi:10.1039/c6cp00759g .

Bubanja, Itana Nuša, Macesic, Stevan R., Ivanović-Šašić, Ana, Čupić, Željko, Anić, Slobodan, Kolar-Anić, Ljiljana, "Intermittent chaos in the Bray-Liebhafsky oscillator. Temperature dependence" in Physical Chemistry Chemical Physics, 18, no. 14 (2016):9770-9778,
https://doi.org/10.1039/c6cp00759g . .

TY  - CONF
AU  - Jović-Jovičić, Nataša
AU  - Marinović, Sanja
AU  - Ajduković, Marija
AU  - Mudrinić, Tihana
AU  - Ivanović-Šašić, Ana
AU  - Mojović, Zorica
AU  - Milutinović Nikolić, Aleksandra
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6334
AB  - The removal of color dyes from wastewater before they are released in natural waters is important
since some dyes are highly toxic for environment. Although several traditional chemical and
biological processes exist for dye removal, application of these techniques has been restricted
of low cost adsorbents suitable for dye removal. Since natural clays are ineffective as adsorbents
for organic compounds it is necessary to modify their surface. Chitosan-clay nanocomposites
are promising materials with organic-inorganic hybrid interfaces. These materials contain a
biopolymer chitosan and they represent a green alternative to conventional organoclays in their
applications, i.e. as adsorbents. The intercalation of chitosan into smectite clay can result in
monolayer and/or bilayer arrangements. When bilayer structures are formed some free –NH3
+
groups present in the interlamellar region are making these materials suitable for adsorption of
anionic species, i.e. anionic textile dyes. In this work chitosan-clay nanocomposite was synthesized
using Na+-enriched smecite clay and characterized using physical-chemical methods. In
this manner the bionanocomposite with bilayered intercalation of chitosan chain was obtained
and tested as adsorbent. The adsorption of anionic dyes Acid Orange 10 (AO10), Acid Yellow
99 (AY99) and Reactive Black 5 (RB5) has been studied by varying the different adsorbate concentrations, temperature and shaking time. The concentration of commercial textile dyes was
analyzed before and after adsorption test using Thermo Electron Nicolet Evolution 500 UV-VIS
spectrophotometer in wavelength range from 250 – 800 nm.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia
T1  - Chitosan-montmorillonite bionanocomposite as textile dyes adsorbent
SP  - 68
EP  - 68
UR  - https://hdl.handle.net/21.15107/rcub_cer_6334
ER  - 

@conference{
author = "Jović-Jovičić, Nataša and Marinović, Sanja and Ajduković, Marija and Mudrinić, Tihana and Ivanović-Šašić, Ana and Mojović, Zorica and Milutinović Nikolić, Aleksandra",
year = "2016",
abstract = "The removal of color dyes from wastewater before they are released in natural waters is important
since some dyes are highly toxic for environment. Although several traditional chemical and
biological processes exist for dye removal, application of these techniques has been restricted
of low cost adsorbents suitable for dye removal. Since natural clays are ineffective as adsorbents
for organic compounds it is necessary to modify their surface. Chitosan-clay nanocomposites
are promising materials with organic-inorganic hybrid interfaces. These materials contain a
biopolymer chitosan and they represent a green alternative to conventional organoclays in their
applications, i.e. as adsorbents. The intercalation of chitosan into smectite clay can result in
monolayer and/or bilayer arrangements. When bilayer structures are formed some free –NH3
+
groups present in the interlamellar region are making these materials suitable for adsorption of
anionic species, i.e. anionic textile dyes. In this work chitosan-clay nanocomposite was synthesized
using Na+-enriched smecite clay and characterized using physical-chemical methods. In
this manner the bionanocomposite with bilayered intercalation of chitosan chain was obtained
and tested as adsorbent. The adsorption of anionic dyes Acid Orange 10 (AO10), Acid Yellow
99 (AY99) and Reactive Black 5 (RB5) has been studied by varying the different adsorbate concentrations, temperature and shaking time. The concentration of commercial textile dyes was
analyzed before and after adsorption test using Thermo Electron Nicolet Evolution 500 UV-VIS
spectrophotometer in wavelength range from 250 – 800 nm.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia",
title = "Chitosan-montmorillonite bionanocomposite as textile dyes adsorbent",
pages = "68-68",
url = "https://hdl.handle.net/21.15107/rcub_cer_6334"
}

Jović-Jovičić, N., Marinović, S., Ajduković, M., Mudrinić, T., Ivanović-Šašić, A., Mojović, Z.,& Milutinović Nikolić, A.. (2016). Chitosan-montmorillonite bionanocomposite as textile dyes adsorbent. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia
Serbian Ceramic Society., 68-68.
https://hdl.handle.net/21.15107/rcub_cer_6334

Jović-Jovičić N, Marinović S, Ajduković M, Mudrinić T, Ivanović-Šašić A, Mojović Z, Milutinović Nikolić A. Chitosan-montmorillonite bionanocomposite as textile dyes adsorbent. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia. 2016;:68-68.
https://hdl.handle.net/21.15107/rcub_cer_6334 .

Jović-Jovičić, Nataša, Marinović, Sanja, Ajduković, Marija, Mudrinić, Tihana, Ivanović-Šašić, Ana, Mojović, Zorica, Milutinović Nikolić, Aleksandra, "Chitosan-montmorillonite bionanocomposite as textile dyes adsorbent" in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia (2016):68-68,
https://hdl.handle.net/21.15107/rcub_cer_6334 .

TY  - CONF
AU  - Mojović, Zorica
AU  - Jović-Jovičić, Nataša
AU  - Ajduković, Marija
AU  - Marinović, Sanja
AU  - Mudrinić, Tihana
AU  - Ivanović-Šašić, Ana
AU  - Banković, Predrag
PY  - 2016
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/6335
AB  - Electron transfer between heme protein and electrode surface can be enhanced by electrode
modifiers such as clays. Using hemoglobin as sensor relays on its possibility to retain native
structure that enables hemoglobin to shift conformation. Therefore, electrochemical investigation
of hemoglobin response at extreme pH did not take attention. At extreme pH values protein
denaturation occurs resulting in conformation loss. The aim of this paper was to investigate
electrochemical behavior of hemoglobin supported on smectite in alkaline media. Hemoglobin
was immobilized on acid activated clay, bare and modified by SDS. The adsorption of hemoglobin
was slightly increased by the presence of SDS on the electrode surface. All samples showed
peak at -0.45 V ascribed to reduction pair of heme Fe(III)/Fe(II). Denaturation of hemoglobin
imparted chemically by SDS or electrochemically by cycling in cathodic potential range, led to
development of new peak at potential around -0.7 V in alkaline media. This feature might be
useful for studying and determination of different hemoglobin types.
PB  - Serbian Ceramic Society
C3  - Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia
T1  - Electrochemical response of hemoglobin
SP  - 77
EP  - 77
UR  - https://hdl.handle.net/21.15107/rcub_cer_6335
ER  - 

@conference{
author = "Mojović, Zorica and Jović-Jovičić, Nataša and Ajduković, Marija and Marinović, Sanja and Mudrinić, Tihana and Ivanović-Šašić, Ana and Banković, Predrag",
year = "2016",
abstract = "Electron transfer between heme protein and electrode surface can be enhanced by electrode
modifiers such as clays. Using hemoglobin as sensor relays on its possibility to retain native
structure that enables hemoglobin to shift conformation. Therefore, electrochemical investigation
of hemoglobin response at extreme pH did not take attention. At extreme pH values protein
denaturation occurs resulting in conformation loss. The aim of this paper was to investigate
electrochemical behavior of hemoglobin supported on smectite in alkaline media. Hemoglobin
was immobilized on acid activated clay, bare and modified by SDS. The adsorption of hemoglobin
was slightly increased by the presence of SDS on the electrode surface. All samples showed
peak at -0.45 V ascribed to reduction pair of heme Fe(III)/Fe(II). Denaturation of hemoglobin
imparted chemically by SDS or electrochemically by cycling in cathodic potential range, led to
development of new peak at potential around -0.7 V in alkaline media. This feature might be
useful for studying and determination of different hemoglobin types.",
publisher = "Serbian Ceramic Society",
journal = "Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia",
title = "Electrochemical response of hemoglobin",
pages = "77-77",
url = "https://hdl.handle.net/21.15107/rcub_cer_6335"
}

Mojović, Z., Jović-Jovičić, N., Ajduković, M., Marinović, S., Mudrinić, T., Ivanović-Šašić, A.,& Banković, P.. (2016). Electrochemical response of hemoglobin. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia
Serbian Ceramic Society., 77-77.
https://hdl.handle.net/21.15107/rcub_cer_6335

Mojović Z, Jović-Jovičić N, Ajduković M, Marinović S, Mudrinić T, Ivanović-Šašić A, Banković P. Electrochemical response of hemoglobin. in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia. 2016;:77-77.
https://hdl.handle.net/21.15107/rcub_cer_6335 .

Mojović, Zorica, Jović-Jovičić, Nataša, Ajduković, Marija, Marinović, Sanja, Mudrinić, Tihana, Ivanović-Šašić, Ana, Banković, Predrag, "Electrochemical response of hemoglobin" in Program and book of abstracts - Serbian Ceramic Society Conference – Advanced Ceramics and Application V, 21-23.09.2016, Belgrade, Serbia (2016):77-77,
https://hdl.handle.net/21.15107/rcub_cer_6335 .