TY  - JOUR
AU  - Kokunešoski, Maja
AU  - Šaponjić, Aleksandra
AU  - Maksimović, Vesna M.
AU  - Stanković, Miroslav
AU  - Pavlović, Mirjana
AU  - Pantic, Jelena
AU  - Majstorovic, Jelena
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1432
AB  - Intention of this work was to obtain porous silicon dioxide ceramics by using boric acid as an inexpensive additive at low forming pressure and low sintering temperature. Starting raw material, smectite clay from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid in amount of 0.5, 1 and 2 wt%. Powder was compacted by using different pressures: 40, 60 and 80 MPa. Pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity of nearly 40% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 0.2 mu m and 10 mu m in the samples sintered at 1150 and 1300 degrees C, respectively. X-ray diffraction (XRD), scaning electron microscopy (SEM), and porosimetry measurements were employed to characterize the phases and microstructure of the obtained ceramics. The relations between mechanical characteristics of samples (Young modulus and Poisson ratio) and content of boric acid were studied.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Preparation and characterization of clay-based porous ceramics with boric acid as additive
VL  - 40
IS  - 9
SP  - 14191
EP  - 14196
DO  - 10.1016/j.ceramint.2014.06.007
ER  - 

@article{
author = "Kokunešoski, Maja and Šaponjić, Aleksandra and Maksimović, Vesna M. and Stanković, Miroslav and Pavlović, Mirjana and Pantic, Jelena and Majstorovic, Jelena",
year = "2014",
abstract = "Intention of this work was to obtain porous silicon dioxide ceramics by using boric acid as an inexpensive additive at low forming pressure and low sintering temperature. Starting raw material, smectite clay from surface coal mine Kolubara, Serbia, was purified from organic and inorganic impurities by using heat and chemical treatment. Boric acid was used as binding and sintering aid in amount of 0.5, 1 and 2 wt%. Powder was compacted by using different pressures: 40, 60 and 80 MPa. Pressed samples were sintered at 850, 1000, 1150, and 1300 degrees C for 4 h in air. A relatively high porosity of nearly 40% is obtained for the samples pressed at 40, 60 and 80 MPa and sintered at 1000 degrees C. Median pore size diameters are in the range of macroporous up to 0.2 mu m and 10 mu m in the samples sintered at 1150 and 1300 degrees C, respectively. X-ray diffraction (XRD), scaning electron microscopy (SEM), and porosimetry measurements were employed to characterize the phases and microstructure of the obtained ceramics. The relations between mechanical characteristics of samples (Young modulus and Poisson ratio) and content of boric acid were studied.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Preparation and characterization of clay-based porous ceramics with boric acid as additive",
volume = "40",
number = "9",
pages = "14191-14196",
doi = "10.1016/j.ceramint.2014.06.007"
}

Kokunešoski, M., Šaponjić, A., Maksimović, V. M., Stanković, M., Pavlović, M., Pantic, J.,& Majstorovic, J.. (2014). Preparation and characterization of clay-based porous ceramics with boric acid as additive. in Ceramics International
Elsevier Sci Ltd, Oxford., 40(9), 14191-14196.
https://doi.org/10.1016/j.ceramint.2014.06.007

Kokunešoski M, Šaponjić A, Maksimović VM, Stanković M, Pavlović M, Pantic J, Majstorovic J. Preparation and characterization of clay-based porous ceramics with boric acid as additive. in Ceramics International. 2014;40(9):14191-14196.
doi:10.1016/j.ceramint.2014.06.007 .

Kokunešoski, Maja, Šaponjić, Aleksandra, Maksimović, Vesna M., Stanković, Miroslav, Pavlović, Mirjana, Pantic, Jelena, Majstorovic, Jelena, "Preparation and characterization of clay-based porous ceramics with boric acid as additive" in Ceramics International, 40, no. 9 (2014):14191-14196,
https://doi.org/10.1016/j.ceramint.2014.06.007 . .

TY  - JOUR
AU  - Krstić, Natalija
AU  - Bjelaković, Mira
AU  - Žižak, Željko
AU  - Pavlović, Mirjana
AU  - Juranić, Zorica
AU  - Pavlović, Vladimir D.
PY  - 2007
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/363
AB  - The antiproliferative activity of previously synthesized (Z)-cholest-4-en-6-one oxime (1), (E)-cholest-4-en-6-one oxime (2), 7-aza-B-homocholest-4-en-6-one (3) and 6-aza-B-homocholest-4-en-7-one (4) and newly synthesized 6-thioxo-7-aza-B-homocholest-4-ene (5) and 6-aza-7-thioxo-B-homocholest-4-ene (6) was tested for their possible effects against two human tumor cell lines, cervical carcinoma (HeLa) and chronic myelogenous leukemia (K-562). Compounds 1-6, exerted a dose-dependent antiproliferative effect toward cell lines used in experimental design, showing high selectivity in their action for tumor cells in comparison to normal immunocompetent cells (non-stimulated PBMC and PHA-stimulated PBMC). Compounds 2, 3 and 4 exhibited a very high but selective antitumor activity, by inducing apoptosis in sensitive, for that purpose targeted tumor cell line (HeLa cells). Low toxic effect upon both non-stimulated, and PHA stimulated PBMCs from control, healthy volunteers, has been detected for compounds 1, 2, 3 and 4. The possible reasons for profound differences in the effects of this spectrum of steroidal compounds between tumor cell lines and normal stimulated and non-stimulated PBMCs are discussed. The molecular mechanisms for apoptotic events in HeLa cell line are suggested. The guidelines for further research are underlined.
PB  - Elsevier
T2  - Steroids
T1  - Synthesis of some steroidal oximes, lactams, thiolactams and their antitumor activities
VL  - 72
IS  - 5
SP  - 406
EP  - 414
DO  - 10.1016/j.steroids.2007.02.005
ER  - 

@article{
author = "Krstić, Natalija and Bjelaković, Mira and Žižak, Željko and Pavlović, Mirjana and Juranić, Zorica and Pavlović, Vladimir D.",
year = "2007",
abstract = "The antiproliferative activity of previously synthesized (Z)-cholest-4-en-6-one oxime (1), (E)-cholest-4-en-6-one oxime (2), 7-aza-B-homocholest-4-en-6-one (3) and 6-aza-B-homocholest-4-en-7-one (4) and newly synthesized 6-thioxo-7-aza-B-homocholest-4-ene (5) and 6-aza-7-thioxo-B-homocholest-4-ene (6) was tested for their possible effects against two human tumor cell lines, cervical carcinoma (HeLa) and chronic myelogenous leukemia (K-562). Compounds 1-6, exerted a dose-dependent antiproliferative effect toward cell lines used in experimental design, showing high selectivity in their action for tumor cells in comparison to normal immunocompetent cells (non-stimulated PBMC and PHA-stimulated PBMC). Compounds 2, 3 and 4 exhibited a very high but selective antitumor activity, by inducing apoptosis in sensitive, for that purpose targeted tumor cell line (HeLa cells). Low toxic effect upon both non-stimulated, and PHA stimulated PBMCs from control, healthy volunteers, has been detected for compounds 1, 2, 3 and 4. The possible reasons for profound differences in the effects of this spectrum of steroidal compounds between tumor cell lines and normal stimulated and non-stimulated PBMCs are discussed. The molecular mechanisms for apoptotic events in HeLa cell line are suggested. The guidelines for further research are underlined.",
publisher = "Elsevier",
journal = "Steroids",
title = "Synthesis of some steroidal oximes, lactams, thiolactams and their antitumor activities",
volume = "72",
number = "5",
pages = "406-414",
doi = "10.1016/j.steroids.2007.02.005"
}

Krstić, N., Bjelaković, M., Žižak, Ž., Pavlović, M., Juranić, Z.,& Pavlović, V. D.. (2007). Synthesis of some steroidal oximes, lactams, thiolactams and their antitumor activities. in Steroids
Elsevier., 72(5), 406-414.
https://doi.org/10.1016/j.steroids.2007.02.005

Krstić N, Bjelaković M, Žižak Ž, Pavlović M, Juranić Z, Pavlović VD. Synthesis of some steroidal oximes, lactams, thiolactams and their antitumor activities. in Steroids. 2007;72(5):406-414.
doi:10.1016/j.steroids.2007.02.005 .

Krstić, Natalija, Bjelaković, Mira, Žižak, Željko, Pavlović, Mirjana, Juranić, Zorica, Pavlović, Vladimir D., "Synthesis of some steroidal oximes, lactams, thiolactams and their antitumor activities" in Steroids, 72, no. 5 (2007):406-414,
https://doi.org/10.1016/j.steroids.2007.02.005 . .

TY  - JOUR
AU  - Gopčević, Kristina
AU  - Gojgić-Cvijović, Gordana
AU  - Pavlović, Mirjana
AU  - Milićević, Živana
AU  - Stevanović, D.
PY  - 2006
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/249
AB  - The effect of some membrane active ionophoric antibiotics on the amplitude of contractions of isolated rat heart right ventricle was studied. The effects of polyether nigericin, polyene amphotericin B and peptide antibiotic polymyxin B were examined. Nigericin in a concentration of 1.38 _mol/L exerts a positive inotropic effect with its maximal value (+29%) 15 minutes after application. Amphotericin B in a concentration of 1.08 _mol/L caused a positive inotropic effect, which was maximal in the 30th minute of the experiment (+28%). Polymyxin B in a concentration of 0.84 _mol/L caused a positive inotropic effect, which was maximal (+32%) 20 minutes after application.
AB  - Amfotericin B, nigericin i polimiksin B pokazuju pozitivni inotropni efekat na izolovanu desnu komoru srca pacova. Imajući u vidu nižu toksičnost jonofornih antibiotika u poređenju sa glikozidnim supstancama koje se u farmakoterapiji koriste kao kardiotonici i visoku selektivnost jonofora prema nekim katjonima, dobijeni rezultati ukazuju na moguću upotrebu ovih supstanci u poboljšanju funkcije insuficijentnog miokarda.
T2  - Acta veterinaria
T1  - The membrane active antibiotics effects on rat heart myocardium
T1  - Efekti antibiotika koji deluju na ćelijske membrane na srce pacova
VL  - 56
IS  - 2-3
SP  - 149
EP  - 156
DO  - 10.2298/AVB0603149G
ER  - 

@article{
author = "Gopčević, Kristina and Gojgić-Cvijović, Gordana and Pavlović, Mirjana and Milićević, Živana and Stevanović, D.",
year = "2006",
abstract = "The effect of some membrane active ionophoric antibiotics on the amplitude of contractions of isolated rat heart right ventricle was studied. The effects of polyether nigericin, polyene amphotericin B and peptide antibiotic polymyxin B were examined. Nigericin in a concentration of 1.38 _mol/L exerts a positive inotropic effect with its maximal value (+29%) 15 minutes after application. Amphotericin B in a concentration of 1.08 _mol/L caused a positive inotropic effect, which was maximal in the 30th minute of the experiment (+28%). Polymyxin B in a concentration of 0.84 _mol/L caused a positive inotropic effect, which was maximal (+32%) 20 minutes after application., Amfotericin B, nigericin i polimiksin B pokazuju pozitivni inotropni efekat na izolovanu desnu komoru srca pacova. Imajući u vidu nižu toksičnost jonofornih antibiotika u poređenju sa glikozidnim supstancama koje se u farmakoterapiji koriste kao kardiotonici i visoku selektivnost jonofora prema nekim katjonima, dobijeni rezultati ukazuju na moguću upotrebu ovih supstanci u poboljšanju funkcije insuficijentnog miokarda.",
journal = "Acta veterinaria",
title = "The membrane active antibiotics effects on rat heart myocardium, Efekti antibiotika koji deluju na ćelijske membrane na srce pacova",
volume = "56",
number = "2-3",
pages = "149-156",
doi = "10.2298/AVB0603149G"
}

Gopčević, K., Gojgić-Cvijović, G., Pavlović, M., Milićević, Ž.,& Stevanović, D.. (2006). The membrane active antibiotics effects on rat heart myocardium. in Acta veterinaria, 56(2-3), 149-156.
https://doi.org/10.2298/AVB0603149G

Gopčević K, Gojgić-Cvijović G, Pavlović M, Milićević Ž, Stevanović D. The membrane active antibiotics effects on rat heart myocardium. in Acta veterinaria. 2006;56(2-3):149-156.
doi:10.2298/AVB0603149G .

Gopčević, Kristina, Gojgić-Cvijović, Gordana, Pavlović, Mirjana, Milićević, Živana, Stevanović, D., "The membrane active antibiotics effects on rat heart myocardium" in Acta veterinaria, 56, no. 2-3 (2006):149-156,
https://doi.org/10.2298/AVB0603149G . .