TY  - JOUR
AU  - Lazarevic, Jelica
AU  - Radojkovic, Aleksandar
AU  - Kostic, Igor
AU  - Krnjajic, Slobodan
AU  - Mitrovic, Jelena
AU  - Kostic, Miroslav B.
AU  - Novaković, Tatjana
AU  - Branković, Zorica
AU  - Branković, Goran
PY  - 2018
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2297
AB  - For long-term protection of stored products there is a growing demand to replace chemical insecticides due to their effects on human health and environmental safety. Particulate materials, such as inert dusts and various submicron and nanomaterials have been extensively tested as viable alternatives. This is the first study on the insecticidal impact of alumina powder (alpha-Al2O3) on the bruchid pest, Acanthoscelides obtectus (Say) (Coleoptera: Chrysomelidae: Bruchinae). By altering the fuel to oxidant molar ratio (F/O: 0.5, 0.8, 1.2) in an autocombustion reaction we synthesized alumina powders with specific surface area and particle size varying from the nano- to micron scale. It was found that particle morphology influenced survival and progeny number of A. obtectus. The order of powders from low to high efficacy in reducing beetle performance (F/O-0.8  LT  F/O-0.5  LT  F/O-1.2) correlated well with increase in surface area, pore volume and diameter, and decrease in particle size. Survival was also affected by time of exposure, the applied dose and sex. The estimated median lethal concentration of the most efficient powder F/O-1.2 was significantly lower in males (LC50 = 330.4 ppm) than in females (LC50 = 409.6 ppm). Our results suggest that alumina powder can be considered for seed protection against A. obtectus, particularly during long-term storage, as it is cost effective, exerts limited toxicity to humans and demands no repetitive use like conventional pesticides.
PB  - Oxford : Pergamon-Elsevier Science Ltd
T2  - Journal of Stored Products Research
T1  - Insecticidal impact of alumina powders against Acanthoscelides obtectus (Say)
VL  - 77
SP  - 45
EP  - 54
DO  - 10.1016/j.jspr.2018.02.006
ER  - 

@article{
author = "Lazarevic, Jelica and Radojkovic, Aleksandar and Kostic, Igor and Krnjajic, Slobodan and Mitrovic, Jelena and Kostic, Miroslav B. and Novaković, Tatjana and Branković, Zorica and Branković, Goran",
year = "2018",
abstract = "For long-term protection of stored products there is a growing demand to replace chemical insecticides due to their effects on human health and environmental safety. Particulate materials, such as inert dusts and various submicron and nanomaterials have been extensively tested as viable alternatives. This is the first study on the insecticidal impact of alumina powder (alpha-Al2O3) on the bruchid pest, Acanthoscelides obtectus (Say) (Coleoptera: Chrysomelidae: Bruchinae). By altering the fuel to oxidant molar ratio (F/O: 0.5, 0.8, 1.2) in an autocombustion reaction we synthesized alumina powders with specific surface area and particle size varying from the nano- to micron scale. It was found that particle morphology influenced survival and progeny number of A. obtectus. The order of powders from low to high efficacy in reducing beetle performance (F/O-0.8  LT  F/O-0.5  LT  F/O-1.2) correlated well with increase in surface area, pore volume and diameter, and decrease in particle size. Survival was also affected by time of exposure, the applied dose and sex. The estimated median lethal concentration of the most efficient powder F/O-1.2 was significantly lower in males (LC50 = 330.4 ppm) than in females (LC50 = 409.6 ppm). Our results suggest that alumina powder can be considered for seed protection against A. obtectus, particularly during long-term storage, as it is cost effective, exerts limited toxicity to humans and demands no repetitive use like conventional pesticides.",
publisher = "Oxford : Pergamon-Elsevier Science Ltd",
journal = "Journal of Stored Products Research",
title = "Insecticidal impact of alumina powders against Acanthoscelides obtectus (Say)",
volume = "77",
pages = "45-54",
doi = "10.1016/j.jspr.2018.02.006"
}

Lazarevic, J., Radojkovic, A., Kostic, I., Krnjajic, S., Mitrovic, J., Kostic, M. B., Novaković, T., Branković, Z.,& Branković, G.. (2018). Insecticidal impact of alumina powders against Acanthoscelides obtectus (Say). in Journal of Stored Products Research
Oxford : Pergamon-Elsevier Science Ltd., 77, 45-54.
https://doi.org/10.1016/j.jspr.2018.02.006

Lazarevic J, Radojkovic A, Kostic I, Krnjajic S, Mitrovic J, Kostic MB, Novaković T, Branković Z, Branković G. Insecticidal impact of alumina powders against Acanthoscelides obtectus (Say). in Journal of Stored Products Research. 2018;77:45-54.
doi:10.1016/j.jspr.2018.02.006 .

Lazarevic, Jelica, Radojkovic, Aleksandar, Kostic, Igor, Krnjajic, Slobodan, Mitrovic, Jelena, Kostic, Miroslav B., Novaković, Tatjana, Branković, Zorica, Branković, Goran, "Insecticidal impact of alumina powders against Acanthoscelides obtectus (Say)" in Journal of Stored Products Research, 77 (2018):45-54,
https://doi.org/10.1016/j.jspr.2018.02.006 . .

TY  - JOUR
AU  - Bojic, Danijela
AU  - Momcilovic, Milan
AU  - Milenkovic, Dragan
AU  - Mitrovic, Jelena
AU  - Banković, Predrag
AU  - Velinov, Nena
AU  - Nikolić, Goran S.
PY  - 2017
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/2176
AB  - Practical aspects of Lagenaria vulgaris shell conversion to activated carbon were examined along with its use in ranitidine adsorption. Kinetics and isotherms of adsorption onto Lagenaria vulgaris carbon (LVC) were correlated to several theoretical adsorption models. The best fit was found in the case of Langmuir and pseudo-second-order model indicating monolayer adsorption. The influence of pH under kinetic study showed slightly hindered adsorption below pH 4. The optimal adsorbent dosage was set to 1 g/L. LVC was characterized by several complementary techniques, including wet chemical techniques such as Boehm's titrations and determination of pH(pzc) and pH of LVC, which revealed neutral nature of the adsorbent. N-2 sorptometry determined specific surface area of 665 m(2)/g and significant ratio of micropores in the sample with maximum wall's diameter of 2.2 nm. Fourier transform infrared spectroscopy (FTIR) confirmed the role of lignin and cellulose in the formation of the final LVC structure. Porous structure of the material was proved by using scanning electron microscopy. Preparation of LVC material drew attention as an easy and low-cost process for production of a highly efficient adsorbent which exhibited fast kinetics of ranitidine removal in the first minutes of contacting and large adsorption capacity (315.5 mg/g) at equilibrium.
PB  - Elsevier
T2  - Arabian Journal of Chemistry
T1  - Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions
VL  - 10
IS  - 7
SP  - 956
EP  - 964
DO  - 10.1016/j.arabjc.2014.12.018
ER  - 

@article{
author = "Bojic, Danijela and Momcilovic, Milan and Milenkovic, Dragan and Mitrovic, Jelena and Banković, Predrag and Velinov, Nena and Nikolić, Goran S.",
year = "2017",
abstract = "Practical aspects of Lagenaria vulgaris shell conversion to activated carbon were examined along with its use in ranitidine adsorption. Kinetics and isotherms of adsorption onto Lagenaria vulgaris carbon (LVC) were correlated to several theoretical adsorption models. The best fit was found in the case of Langmuir and pseudo-second-order model indicating monolayer adsorption. The influence of pH under kinetic study showed slightly hindered adsorption below pH 4. The optimal adsorbent dosage was set to 1 g/L. LVC was characterized by several complementary techniques, including wet chemical techniques such as Boehm's titrations and determination of pH(pzc) and pH of LVC, which revealed neutral nature of the adsorbent. N-2 sorptometry determined specific surface area of 665 m(2)/g and significant ratio of micropores in the sample with maximum wall's diameter of 2.2 nm. Fourier transform infrared spectroscopy (FTIR) confirmed the role of lignin and cellulose in the formation of the final LVC structure. Porous structure of the material was proved by using scanning electron microscopy. Preparation of LVC material drew attention as an easy and low-cost process for production of a highly efficient adsorbent which exhibited fast kinetics of ranitidine removal in the first minutes of contacting and large adsorption capacity (315.5 mg/g) at equilibrium.",
publisher = "Elsevier",
journal = "Arabian Journal of Chemistry",
title = "Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions",
volume = "10",
number = "7",
pages = "956-964",
doi = "10.1016/j.arabjc.2014.12.018"
}

Bojic, D., Momcilovic, M., Milenkovic, D., Mitrovic, J., Banković, P., Velinov, N.,& Nikolić, G. S.. (2017). Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions. in Arabian Journal of Chemistry
Elsevier., 10(7), 956-964.
https://doi.org/10.1016/j.arabjc.2014.12.018

Bojic D, Momcilovic M, Milenkovic D, Mitrovic J, Banković P, Velinov N, Nikolić GS. Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions. in Arabian Journal of Chemistry. 2017;10(7):956-964.
doi:10.1016/j.arabjc.2014.12.018 .

Bojic, Danijela, Momcilovic, Milan, Milenkovic, Dragan, Mitrovic, Jelena, Banković, Predrag, Velinov, Nena, Nikolić, Goran S., "Characterization of a low cost Lagenaria vulgaris based carbon for ranitidine removal from aqueous solutions" in Arabian Journal of Chemistry, 10, no. 7 (2017):956-964,
https://doi.org/10.1016/j.arabjc.2014.12.018 . .