TY  - CONF
AU  - Marković, Marija
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Obradović, Milena
AU  - Ožegović, Milica
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/722
AB  - In this study three bentonite clays (bentonite from deposit Beretnica in Republic of Serbia, commercial bentonite and gray
clay from Šipovo deposit in Bosnia and Herzegovina) were investigated as adsorbents of aflatoxin B1 (AFB1). In a single
in vitro AFB1 adsorption experiment, all three bentonites showed high adsorption efficiency for AFB1 at pH 5. The effect
of adsorbent mass on AFB1 adsorption was also studied, with the same initial AFB1 concentration, at pH 3, and it was
shown that toxin adsorption decreased with decreasing amount of each bentonite in suspension. Thermal analysis was
performed in order to determine the structural differences between investigated bentonites. Results showed that gray clay
was trans-vacant bentonite while other two clays were cis-vacant bentonites. Aflatoxin B1 adsorption experiments, at pH
3, showed that trans-vacant gray bentonite had higher affinity for AFB1 than commercial cis-vacant bentonite. The
highest adsorption was achieved with cis-vacant bentonite from Beretnica deposit.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Bentonite clays as aflatoxin B1 adsorbents
EP  - 16
SP  - 12
ER  - 

@conference{
author = "Marković, Marija and Daković, Aleksandra and Smiljanić, Danijela and Obradović, Milena and Ožegović, Milica",
year = "2023",
abstract = "In this study three bentonite clays (bentonite from deposit Beretnica in Republic of Serbia, commercial bentonite and gray
clay from Šipovo deposit in Bosnia and Herzegovina) were investigated as adsorbents of aflatoxin B1 (AFB1). In a single
in vitro AFB1 adsorption experiment, all three bentonites showed high adsorption efficiency for AFB1 at pH 5. The effect
of adsorbent mass on AFB1 adsorption was also studied, with the same initial AFB1 concentration, at pH 3, and it was
shown that toxin adsorption decreased with decreasing amount of each bentonite in suspension. Thermal analysis was
performed in order to determine the structural differences between investigated bentonites. Results showed that gray clay
was trans-vacant bentonite while other two clays were cis-vacant bentonites. Aflatoxin B1 adsorption experiments, at pH
3, showed that trans-vacant gray bentonite had higher affinity for AFB1 than commercial cis-vacant bentonite. The
highest adsorption was achieved with cis-vacant bentonite from Beretnica deposit.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Bentonite clays as aflatoxin B1 adsorbents",
pages = "16-12"
}

Marković, M., Daković, A., Smiljanić, D., Obradović, M.,& Ožegović, M.. (2023). Bentonite clays as aflatoxin B1 adsorbents. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 12-16.

Marković M, Daković A, Smiljanić D, Obradović M, Ožegović M. Bentonite clays as aflatoxin B1 adsorbents. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:12-16..

Marković, Marija, Daković, Aleksandra, Smiljanić, Danijela, Obradović, Milena, Ožegović, Milica, "Bentonite clays as aflatoxin B1 adsorbents" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):12-16.

TY  - CONF
AU  - Smiljanić, Danijela
AU  - Daković, Aleksandra
AU  - Obradović, Milena
AU  - Marković, Marija
AU  - Ožegović, Milica
AU  - Pantić, Milena
AU  - Krajišnik, Danina
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/723
AB  - In this study bentonite was modified with two chitosans, commercial or chitosan synthesized from mushroom. Obtained
products were subsequently treated with hexadecyltrimethyl ammonium bromide in the amount of 50% of the bentonite`s
CEC value. Starting material and all prepared composites were characterized by FTIR-ATR spectroscopy in order to
confirm modification with organic molecules. Adsorption of zearalenone (ZEN) by clay-chitosan composites and claychitosan-surfactant composites was investigated at pH 3. Results showed that adsorption of ZEN was higher for
composites that had both chitosan and surfactant, confirming that surfactant ions are responsible for ZEN adsorption.
Additionally, the effect of adsorbent mass on ZEN adsorption was investigated for clay-chitosan-surfactant composites
(pH 3) and results have shown that adsorption increased with increasing the amount of both composites.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone
EP  - 376
SP  - 371
ER  - 

@conference{
author = "Smiljanić, Danijela and Daković, Aleksandra and Obradović, Milena and Marković, Marija and Ožegović, Milica and Pantić, Milena and Krajišnik, Danina",
year = "2023",
abstract = "In this study bentonite was modified with two chitosans, commercial or chitosan synthesized from mushroom. Obtained
products were subsequently treated with hexadecyltrimethyl ammonium bromide in the amount of 50% of the bentonite`s
CEC value. Starting material and all prepared composites were characterized by FTIR-ATR spectroscopy in order to
confirm modification with organic molecules. Adsorption of zearalenone (ZEN) by clay-chitosan composites and claychitosan-surfactant composites was investigated at pH 3. Results showed that adsorption of ZEN was higher for
composites that had both chitosan and surfactant, confirming that surfactant ions are responsible for ZEN adsorption.
Additionally, the effect of adsorbent mass on ZEN adsorption was investigated for clay-chitosan-surfactant composites
(pH 3) and results have shown that adsorption increased with increasing the amount of both composites.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone",
pages = "376-371"
}

Smiljanić, D., Daković, A., Obradović, M., Marković, M., Ožegović, M., Pantić, M.,& Krajišnik, D.. (2023). Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 371-376.

Smiljanić D, Daković A, Obradović M, Marković M, Ožegović M, Pantić M, Krajišnik D. Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:371-376..

Smiljanić, Danijela, Daković, Aleksandra, Obradović, Milena, Marković, Marija, Ožegović, Milica, Pantić, Milena, Krajišnik, Danina, "Clay-chitosan-surfactant composites as efficient adsorbents of zearalenone" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):371-376.

TY  - CONF
AU  - Krajišnik, Danina
AU  - Uskoković-Marković, Snežana
AU  - Daković, Aleksandra
AU  - Smiljanić, Danijela
AU  - Kozarski, Maja
AU  - Lazić, Vesna
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/721
AB  - In this study, the preparation and characterization of chitosan–clay composites as potential carriers for tetracycline were performed. The composites based on bentonite (from the deposit of Beretnica, Republic of Serbia) and chitosan were prepared. Two types of chitosan were used for the preparation of the composites: commercial low molecular weight chitosan and chitosan isolated from fruit bodies of the commercially grown mushroom Agaricus bisporus. Adsorption of tetracycline hydrochloride onto natural clay and chitosan-clay composites from aqueous media (pH 3.4) was studied. The amounts of adsorbed antibiotic were determined spectrophotometrically from the difference between the initial concentrations of tetracycline and the amounts remaining in the aqueous medium after dynamic equilibrium. Characterization of the natural clay and chitosan-clay composites before and after adsorption of tetracycline was performed by zeta potential measurements. Adsorption of tetracycline followed a nonlinear isotherm for the natural clay and composites. The Langmuir equation showed the best fit of the equilibrium adsorption data over the entire concentration range (0.05 – 1 mg/mL) and themaximum adsorbed amount of the drug on the natural clay and both chitosan-clay composites was up to ~ 200 mg/g. Only minor differences in the adsorption of the drug were observed between the composites containing commercial chitosan and the chitosan isolated from mushrooms. The observed decrease in zeta potentials of the drug chitosan–clay complexes revealed the interactions of the composite surface with tetracycline molecules. The obtained results indicate the potential of the chitosan-clay composites for the development of therapeutic systems for topical application and suggest the possibility of using fungi as a renewable source of chitosan.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Preparation and characterization of chitosan–clay composites as potential drug carriers
EP  - 127
SP  - 123
ER  - 

@conference{
author = "Krajišnik, Danina and Uskoković-Marković, Snežana and Daković, Aleksandra and Smiljanić, Danijela and Kozarski, Maja and Lazić, Vesna",
year = "2023",
abstract = "In this study, the preparation and characterization of chitosan–clay composites as potential carriers for tetracycline were performed. The composites based on bentonite (from the deposit of Beretnica, Republic of Serbia) and chitosan were prepared. Two types of chitosan were used for the preparation of the composites: commercial low molecular weight chitosan and chitosan isolated from fruit bodies of the commercially grown mushroom Agaricus bisporus. Adsorption of tetracycline hydrochloride onto natural clay and chitosan-clay composites from aqueous media (pH 3.4) was studied. The amounts of adsorbed antibiotic were determined spectrophotometrically from the difference between the initial concentrations of tetracycline and the amounts remaining in the aqueous medium after dynamic equilibrium. Characterization of the natural clay and chitosan-clay composites before and after adsorption of tetracycline was performed by zeta potential measurements. Adsorption of tetracycline followed a nonlinear isotherm for the natural clay and composites. The Langmuir equation showed the best fit of the equilibrium adsorption data over the entire concentration range (0.05 – 1 mg/mL) and themaximum adsorbed amount of the drug on the natural clay and both chitosan-clay composites was up to ~ 200 mg/g. Only minor differences in the adsorption of the drug were observed between the composites containing commercial chitosan and the chitosan isolated from mushrooms. The observed decrease in zeta potentials of the drug chitosan–clay complexes revealed the interactions of the composite surface with tetracycline molecules. The obtained results indicate the potential of the chitosan-clay composites for the development of therapeutic systems for topical application and suggest the possibility of using fungi as a renewable source of chitosan.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Preparation and characterization of chitosan–clay composites as potential drug carriers",
pages = "127-123"
}

Krajišnik, D., Uskoković-Marković, S., Daković, A., Smiljanić, D., Kozarski, M.,& Lazić, V.. (2023). Preparation and characterization of chitosan–clay composites as potential drug carriers. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 123-127.

Krajišnik D, Uskoković-Marković S, Daković A, Smiljanić D, Kozarski M, Lazić V. Preparation and characterization of chitosan–clay composites as potential drug carriers. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:123-127..

Krajišnik, Danina, Uskoković-Marković, Snežana, Daković, Aleksandra, Smiljanić, Danijela, Kozarski, Maja, Lazić, Vesna, "Preparation and characterization of chitosan–clay composites as potential drug carriers" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):123-127.

TY  - CONF
AU  - Jaćević, Vesna
AU  - Obradović, Milena
AU  - Milovanović, Zoran
AU  - Amidžić, Ljiljana
AU  - Nežić, Lana
AU  - Knežević, Milena
AU  - Krajišnik, Danina
AU  - Daković, Aleksandra
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/720
AB  - Natural bentonite (NBNT) and natural halloysite (NHAL), as clay minerals, are used in animal nutrition because their absorption/adsorption properties contribute significantly to animals' health [1]. Clay minerals have also emerged special attention as potential materials for biomedical applications, due to their favorable physicochemical and functional related characteristics along with good biocompatibility. Since it has been proved natural clays have their toxicologcal profiles, and that any modification can change this profile, we evaluated acute toxicology on selected materials.
PB  - British Journal of Pharmacology
C3  - 19th World Congress of Basic & Clinical Pharmacology 2023
T1  - Evaluation of acute toxicological profile of the selected natural clays in rats
EP  - 840
IS  - 51
SP  - 839
VL  - 180
ER  - 

@conference{
author = "Jaćević, Vesna and Obradović, Milena and Milovanović, Zoran and Amidžić, Ljiljana and Nežić, Lana and Knežević, Milena and Krajišnik, Danina and Daković, Aleksandra",
year = "2023",
abstract = "Natural bentonite (NBNT) and natural halloysite (NHAL), as clay minerals, are used in animal nutrition because their absorption/adsorption properties contribute significantly to animals' health [1]. Clay minerals have also emerged special attention as potential materials for biomedical applications, due to their favorable physicochemical and functional related characteristics along with good biocompatibility. Since it has been proved natural clays have their toxicologcal profiles, and that any modification can change this profile, we evaluated acute toxicology on selected materials.",
publisher = "British Journal of Pharmacology",
journal = "19th World Congress of Basic & Clinical Pharmacology 2023",
title = "Evaluation of acute toxicological profile of the selected natural clays in rats",
pages = "840-839",
number = "51",
volume = "180"
}

Jaćević, V., Obradović, M., Milovanović, Z., Amidžić, L., Nežić, L., Knežević, M., Krajišnik, D.,& Daković, A.. (2023). Evaluation of acute toxicological profile of the selected natural clays in rats. in 19th World Congress of Basic & Clinical Pharmacology 2023
British Journal of Pharmacology., 180(51), 839-840.

Jaćević V, Obradović M, Milovanović Z, Amidžić L, Nežić L, Knežević M, Krajišnik D, Daković A. Evaluation of acute toxicological profile of the selected natural clays in rats. in 19th World Congress of Basic & Clinical Pharmacology 2023. 2023;180(51):839-840..

Jaćević, Vesna, Obradović, Milena, Milovanović, Zoran, Amidžić, Ljiljana, Nežić, Lana, Knežević, Milena, Krajišnik, Danina, Daković, Aleksandra, "Evaluation of acute toxicological profile of the selected natural clays in rats" in 19th World Congress of Basic & Clinical Pharmacology 2023, 180, no. 51 (2023):839-840.