TY  - CONF
AU  - Joksimović, K.
AU  - Žerađanin, A.
AU  - Lončarević, B.
AU  - Lješević, Marija
AU  - Avdalović, J.
AU  - Ranđelović, Danijela
AU  - Beškoski, Vladimir
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4916
AB  - Introduction: Global worldwide population and urbanization in general have created an increasing need for new energy sources. These sources need to be renewable, but it is also very important to respect the principles of environmental protection. Microbial fuel cells (MFC) are a green technology that is attracting more and more attention in the last decade. MFC presents a system which produces electrical current through metabolic processes of microorganisms such is the decomposition of organic matter. In this process chemical energy is directly converted into electrical energy [1-3]. The performance of MFC depends on several factors: temperature, the composition of the sediment, the material from which the electrodes are made, but certainly, one of the prominent factors is the activity of a microbial community. In this paper, efficiency of two MFC systems will be compared to obtain the highest current and power generation. One of them contains only river sediment as a source of microorganisms, while the other was biostimulated by microorganisms isolated from the same river sediment [2-3]. Methods: The river sediment was placed between a set of inox electrodes in a plastic container, with a total volume of 201 cm3  (MFC I). The second MFC (MFC II) was made in the same way, but a consortium of microorganisms, Clostridium sp., Bacillus sp. and Tepidibacter sp. isolated from the river sediment was added to the sediment. The set of resistors already established in our previous studies were used for the measurement of the amount of voltage, which was then used to obtained the values of current and power [4]. Results: After five days of measuring the generated voltage via MFC I and II, the results for current and power density were obtained. In MFC I, the highest current density was recorded on the fifth day and was 76 mA/ m3  while the power was 1.5 mW/m3 . With MFC II, the results were visibly higher, where the current was increased three times (up to 210 mA/m3 ), and the power by as much as 4 times higher compared to the results of MFC I (6 mW/m3 ). Conclusion: Results show that MFC I has lower values than the sediment stimulated by a consortium of microorganisms in the MFC II. The community of microorganisms greatly contributes to improving the performance of the sediment itself, by generating more power density.
PB  - Belgrade : Serbian Chemical Society
C3  - Book of Abstracts 21st; European Meeting on Environmental Chemistry
T1  - Influence of Microbial Community on Power Generation Using MFC System
SP  - 112
EP  - 112
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4916
ER  - 

@conference{
author = "Joksimović, K. and Žerađanin, A. and Lončarević, B. and Lješević, Marija and Avdalović, J. and Ranđelović, Danijela and Beškoski, Vladimir",
year = "2021",
abstract = "Introduction: Global worldwide population and urbanization in general have created an increasing need for new energy sources. These sources need to be renewable, but it is also very important to respect the principles of environmental protection. Microbial fuel cells (MFC) are a green technology that is attracting more and more attention in the last decade. MFC presents a system which produces electrical current through metabolic processes of microorganisms such is the decomposition of organic matter. In this process chemical energy is directly converted into electrical energy [1-3]. The performance of MFC depends on several factors: temperature, the composition of the sediment, the material from which the electrodes are made, but certainly, one of the prominent factors is the activity of a microbial community. In this paper, efficiency of two MFC systems will be compared to obtain the highest current and power generation. One of them contains only river sediment as a source of microorganisms, while the other was biostimulated by microorganisms isolated from the same river sediment [2-3]. Methods: The river sediment was placed between a set of inox electrodes in a plastic container, with a total volume of 201 cm3  (MFC I). The second MFC (MFC II) was made in the same way, but a consortium of microorganisms, Clostridium sp., Bacillus sp. and Tepidibacter sp. isolated from the river sediment was added to the sediment. The set of resistors already established in our previous studies were used for the measurement of the amount of voltage, which was then used to obtained the values of current and power [4]. Results: After five days of measuring the generated voltage via MFC I and II, the results for current and power density were obtained. In MFC I, the highest current density was recorded on the fifth day and was 76 mA/ m3  while the power was 1.5 mW/m3 . With MFC II, the results were visibly higher, where the current was increased three times (up to 210 mA/m3 ), and the power by as much as 4 times higher compared to the results of MFC I (6 mW/m3 ). Conclusion: Results show that MFC I has lower values than the sediment stimulated by a consortium of microorganisms in the MFC II. The community of microorganisms greatly contributes to improving the performance of the sediment itself, by generating more power density.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of Abstracts 21st; European Meeting on Environmental Chemistry",
title = "Influence of Microbial Community on Power Generation Using MFC System",
pages = "112-112",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4916"
}

Joksimović, K., Žerađanin, A., Lončarević, B., Lješević, M., Avdalović, J., Ranđelović, D.,& Beškoski, V.. (2021). Influence of Microbial Community on Power Generation Using MFC System. in Book of Abstracts 21st; European Meeting on Environmental Chemistry
Belgrade : Serbian Chemical Society., 112-112.
https://hdl.handle.net/21.15107/rcub_cherry_4916

Joksimović K, Žerađanin A, Lončarević B, Lješević M, Avdalović J, Ranđelović D, Beškoski V. Influence of Microbial Community on Power Generation Using MFC System. in Book of Abstracts 21st; European Meeting on Environmental Chemistry. 2021;:112-112.
https://hdl.handle.net/21.15107/rcub_cherry_4916 .

Joksimović, K., Žerađanin, A., Lončarević, B., Lješević, Marija, Avdalović, J., Ranđelović, Danijela, Beškoski, Vladimir, "Influence of Microbial Community on Power Generation Using MFC System" in Book of Abstracts 21st; European Meeting on Environmental Chemistry (2021):112-112,
https://hdl.handle.net/21.15107/rcub_cherry_4916 .

TY  - CONF
AU  - Štrbac, S.
AU  - Ranđelović, Danijela
AU  - Gajica, G.
AU  - Stojadinović, Sanja M.
AU  - Veselinović, G.
AU  - Orlić, Jovana
AU  - Kašanin-Grubin, Milica
PY  - 2021
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4920
AB  - Forests cover about 40% of Earth’s surface, while is 42% of the European Unions’ total land area is covered by forests and wooded land [1]. Forest ecosystems are open and dynamic systems that exchange matter with other systems such as the atmosphere, hydrosphere, and biosphere [1]. Nowadays, in addition to the exchange of substances necessary for its functioning, there is also an exchange of polluting substances. Heavy metals in forest soil can originate from natural and anthropogenic processes and their high concentration can be toxic for ecosystems and humans [2]. The aim of this study is to determine: (i) heavy metal distribution in forest soil; (ii) environmental and health risk; (iii) the source of heavy metals; (iv) the origin of heavy metals; and (v) influence of the geological substrate on heavy metal contents. Soil samples were collected from European mountain beech forests in 11 countries: Bosnia and Herzegovina, Bulgaria, Czech Republic, Germany, Italy, Poland, Romania, Serbia, Slovakia, Slovenia, and Spain. Since European beech forests grow on a wide range of geological settings, during this research terrestrial ecosystems that lie on five major bedrock groups (andesite, carbonate, conglomerate, granite, and sandstone) were investigated. The average abundance order of heavy metal contents in forest soil samples is Cr > Zn > Ni > Pb > Cu > Co > Cd. According to geo-statistical analysis soil samples with the lowest heavy metal contents belong to cambisol soil type, on sandstone, and granite substrate, and with the highest contents belong luvisols and rendzina soil types on limestone and dolomite substrate. The concentration of most heavy metals doesn’t show a systematic pattern with depth. Considering enrichment factor (EF) Pb, Sb, Cd and As, have moderate enrichment, or moderately severe enrichment in the surface soil layer. Mercury has severe enrichment. The highest values of hazard quotient pathways are noticed for ingestion in the children population, especially in the case of Pb. The Pearson correlation coefficient revealed a positive correlation among most of the elements indicating one or more common sources of heavy metals. Based on the Positive Matrix Factorization (PMF) V, Ni, Cu and Th were provided the highest percentage contribution for Factor 1, As, and Se for Factor 1 and Factor 3, Hg for Factor 4, and Cd for Factor 5. Principal Component Analysis (PCA) showed that Principle Component 1 (PC1) was mainly loaded with V, Ni, Cu, As, Se, and Th with similar high values, and Cd and Hg were strongly correlated in the Principle Component 2 (PC2). Taking into account all results it can be concluded that heavy metal concentrations in European beech forests soil are mainly determined by the geological substrate.
PB  - Belgrade : Serbian Chemical Society
C3  - Book of Abstracts 21st; European Meeting on Environmental Chemistry
T1  - Heavy Metals Distribution, Environmental and Health Risk, Sources, and Origin in Soil from European Beech Forests
SP  - 130
EP  - 130
UR  - https://hdl.handle.net/21.15107/rcub_cherry_4920
ER  - 

@conference{
author = "Štrbac, S. and Ranđelović, Danijela and Gajica, G. and Stojadinović, Sanja M. and Veselinović, G. and Orlić, Jovana and Kašanin-Grubin, Milica",
year = "2021",
abstract = "Forests cover about 40% of Earth’s surface, while is 42% of the European Unions’ total land area is covered by forests and wooded land [1]. Forest ecosystems are open and dynamic systems that exchange matter with other systems such as the atmosphere, hydrosphere, and biosphere [1]. Nowadays, in addition to the exchange of substances necessary for its functioning, there is also an exchange of polluting substances. Heavy metals in forest soil can originate from natural and anthropogenic processes and their high concentration can be toxic for ecosystems and humans [2]. The aim of this study is to determine: (i) heavy metal distribution in forest soil; (ii) environmental and health risk; (iii) the source of heavy metals; (iv) the origin of heavy metals; and (v) influence of the geological substrate on heavy metal contents. Soil samples were collected from European mountain beech forests in 11 countries: Bosnia and Herzegovina, Bulgaria, Czech Republic, Germany, Italy, Poland, Romania, Serbia, Slovakia, Slovenia, and Spain. Since European beech forests grow on a wide range of geological settings, during this research terrestrial ecosystems that lie on five major bedrock groups (andesite, carbonate, conglomerate, granite, and sandstone) were investigated. The average abundance order of heavy metal contents in forest soil samples is Cr > Zn > Ni > Pb > Cu > Co > Cd. According to geo-statistical analysis soil samples with the lowest heavy metal contents belong to cambisol soil type, on sandstone, and granite substrate, and with the highest contents belong luvisols and rendzina soil types on limestone and dolomite substrate. The concentration of most heavy metals doesn’t show a systematic pattern with depth. Considering enrichment factor (EF) Pb, Sb, Cd and As, have moderate enrichment, or moderately severe enrichment in the surface soil layer. Mercury has severe enrichment. The highest values of hazard quotient pathways are noticed for ingestion in the children population, especially in the case of Pb. The Pearson correlation coefficient revealed a positive correlation among most of the elements indicating one or more common sources of heavy metals. Based on the Positive Matrix Factorization (PMF) V, Ni, Cu and Th were provided the highest percentage contribution for Factor 1, As, and Se for Factor 1 and Factor 3, Hg for Factor 4, and Cd for Factor 5. Principal Component Analysis (PCA) showed that Principle Component 1 (PC1) was mainly loaded with V, Ni, Cu, As, Se, and Th with similar high values, and Cd and Hg were strongly correlated in the Principle Component 2 (PC2). Taking into account all results it can be concluded that heavy metal concentrations in European beech forests soil are mainly determined by the geological substrate.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Book of Abstracts 21st; European Meeting on Environmental Chemistry",
title = "Heavy Metals Distribution, Environmental and Health Risk, Sources, and Origin in Soil from European Beech Forests",
pages = "130-130",
url = "https://hdl.handle.net/21.15107/rcub_cherry_4920"
}

Štrbac, S., Ranđelović, D., Gajica, G., Stojadinović, S. M., Veselinović, G., Orlić, J.,& Kašanin-Grubin, M.. (2021). Heavy Metals Distribution, Environmental and Health Risk, Sources, and Origin in Soil from European Beech Forests. in Book of Abstracts 21st; European Meeting on Environmental Chemistry
Belgrade : Serbian Chemical Society., 130-130.
https://hdl.handle.net/21.15107/rcub_cherry_4920

Štrbac S, Ranđelović D, Gajica G, Stojadinović SM, Veselinović G, Orlić J, Kašanin-Grubin M. Heavy Metals Distribution, Environmental and Health Risk, Sources, and Origin in Soil from European Beech Forests. in Book of Abstracts 21st; European Meeting on Environmental Chemistry. 2021;:130-130.
https://hdl.handle.net/21.15107/rcub_cherry_4920 .

Štrbac, S., Ranđelović, Danijela, Gajica, G., Stojadinović, Sanja M., Veselinović, G., Orlić, Jovana, Kašanin-Grubin, Milica, "Heavy Metals Distribution, Environmental and Health Risk, Sources, and Origin in Soil from European Beech Forests" in Book of Abstracts 21st; European Meeting on Environmental Chemistry (2021):130-130,
https://hdl.handle.net/21.15107/rcub_cherry_4920 .

TY  - CONF
AU  - Ranđelović, Danijela
AU  - Jakšić, O. M.
AU  - Popović, B.
AU  - Joksimović, Kristina
AU  - Miletić, S.
AU  - Poljak, P.
AU  - Beškoski, Vladimir
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3754
AB  - Microbial fuel cells (MFC) present bioelectrochemical systems that allow generation of electricity during anaerobic respiration of selected bacterial species. They have very promising applications in wastewater purification systems, as biosensors or as alternative power source. This work is a result of joint multidisciplinary research and presents preliminary experimental results obtained by electrical characterization of a single-chamber MFC. The goal of research was to study activity of MFC and estimate its internal resistance.
PB  - Institute of Electrical and Electronics Engineers Inc.
C3  - 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
T1  - Electrical Characterization of Microbial Fuel Cells-Method and Preliminary Results
SP  - 321
EP  - 324
DO  - 10.1109/MIEL.2019.8889650
ER  - 

@conference{
author = "Ranđelović, Danijela and Jakšić, O. M. and Popović, B. and Joksimović, Kristina and Miletić, S. and Poljak, P. and Beškoski, Vladimir",
year = "2019",
abstract = "Microbial fuel cells (MFC) present bioelectrochemical systems that allow generation of electricity during anaerobic respiration of selected bacterial species. They have very promising applications in wastewater purification systems, as biosensors or as alternative power source. This work is a result of joint multidisciplinary research and presents preliminary experimental results obtained by electrical characterization of a single-chamber MFC. The goal of research was to study activity of MFC and estimate its internal resistance.",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
journal = "2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings",
title = "Electrical Characterization of Microbial Fuel Cells-Method and Preliminary Results",
pages = "321-324",
doi = "10.1109/MIEL.2019.8889650"
}

Ranđelović, D., Jakšić, O. M., Popović, B., Joksimović, K., Miletić, S., Poljak, P.,& Beškoski, V.. (2019). Electrical Characterization of Microbial Fuel Cells-Method and Preliminary Results. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings
Institute of Electrical and Electronics Engineers Inc.., 321-324.
https://doi.org/10.1109/MIEL.2019.8889650

Ranđelović D, Jakšić OM, Popović B, Joksimović K, Miletić S, Poljak P, Beškoski V. Electrical Characterization of Microbial Fuel Cells-Method and Preliminary Results. in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings. 2019;:321-324.
doi:10.1109/MIEL.2019.8889650 .

Ranđelović, Danijela, Jakšić, O. M., Popović, B., Joksimović, Kristina, Miletić, S., Poljak, P., Beškoski, Vladimir, "Electrical Characterization of Microbial Fuel Cells-Method and Preliminary Results" in 2019 IEEE 31st International Conference on Microelectronics, MIEL 2019 - Proceedings (2019):321-324,
https://doi.org/10.1109/MIEL.2019.8889650 . .

TY  - JOUR
AU  - Avdalović, Jelena
AU  - Beškoski, Vladimir
AU  - Ranđelović, Danijela
AU  - Stojanović, Mirjana D.
AU  - Zildžović, Snežana
AU  - Vrvić, Miroslav M.
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/141
AB  - Phosphorus solubilization from insoluble phosphate ores by acidophilic autotrophs and heterotrophs is a research of significant interest, because of potential use of these ores as fertilizers, which are economically and ecologically more acceptable than industrial phosphate fertilizers. The object of this paper was to examine the possibility of phosphorus leaching from phosphate ore from Lisina deposit (Bosilegrad), by bacterially generated sulfuric acid, in laboratory conditions. The experiments were carried out with bacterium Acidithiobacillus (At.) ferrooxidans, which is isolated and selected from the copper sulphide mine in Bor. The main goal of the experiment was to confirm if it is possible to use phosphate ore in combination with examined bacterial culture, as a natural fertilizer. Results obtained show that phosphorus has been leached up to 24,5 % in suspension with At. ferrooxidans, and in the same time, degree of leaching in control suspension (without At. frrooxidans) was up to 7,2 %. Influence of At. ferrooxidans on phosphorus solubilization has been confirmed, so the future perspective of our investigations should be directed to examination of microbiological leaching of apatite mixtures with sulphide substrates, and their potential use in quality improvement of alkaline soils.
AB  - Postupci rastvaranja fosfora iz nerastvornih fosfatnih ruda pomoću acidofilnih autotrofa i heterotrofa spadaju u veoma bitna istraživanja, zbog moguće primene ovih ruda kao đubriva, čija je upotreba ekonomski i ekološki prihvatljivija od industrijskih fosfatnih đubriva. Predmet ovog rada je bio da se ispita mogućnost rastvaranja fosfora iz fosfatne rude sa ležišta Lisina (Bosilegrad), u laboratorijskim uslovima, dejstvom sumporne kiseline generisane pomoću bakterijske kulture Acidithiobacillus (At.) ferrooxidans, izolovane i selekcionisane sa jalovišta površinskog kopa rudnika bakra u Boru. Cilj eksperimenta je da se utvrdi da li je moguće rudu sa navedenog ležišta u kombinaciji sa ispitivanom bakterijskom kulturom koristiti kao prirodno đubrivo. Dobijeni rezultati pokazuju da se tokom eksperimenta rastvara fosfor iz ispitivane rude pod uticajem At. ferrooxidans i da je stepen rastvaranja 24,5 %, dok je rastvaranje fosfora u kontrolnoj suspenziji (bez At. ferrooxidans) iznosilo 7,2 %. Uticaj At. ferrooxidans na rastvaranje fosfora je potvrđen, tako da dalja istraživanja treba usmeriti na ispitivanja mikrobiološkog luženja mešavina apatita sa sulfidnim supstratima, zbog eventualne primene vezane za poboljšanje kvaliteta alkalnih zemljišta.
T2  - Zaštita materijala
T1  - Examination of phosphate ores bioleaching from Lisina deposit
T1  - Ispitivanje mogućnosti bioluženja fosfora iz fosfatne rude sa ležišta Lisina
VL  - 53
IS  - 3
SP  - 225
EP  - 230
UR  - https://hdl.handle.net/21.15107/rcub_cherry_141
ER  - 

@article{
author = "Avdalović, Jelena and Beškoski, Vladimir and Ranđelović, Danijela and Stojanović, Mirjana D. and Zildžović, Snežana and Vrvić, Miroslav M.",
year = "2012",
abstract = "Phosphorus solubilization from insoluble phosphate ores by acidophilic autotrophs and heterotrophs is a research of significant interest, because of potential use of these ores as fertilizers, which are economically and ecologically more acceptable than industrial phosphate fertilizers. The object of this paper was to examine the possibility of phosphorus leaching from phosphate ore from Lisina deposit (Bosilegrad), by bacterially generated sulfuric acid, in laboratory conditions. The experiments were carried out with bacterium Acidithiobacillus (At.) ferrooxidans, which is isolated and selected from the copper sulphide mine in Bor. The main goal of the experiment was to confirm if it is possible to use phosphate ore in combination with examined bacterial culture, as a natural fertilizer. Results obtained show that phosphorus has been leached up to 24,5 % in suspension with At. ferrooxidans, and in the same time, degree of leaching in control suspension (without At. frrooxidans) was up to 7,2 %. Influence of At. ferrooxidans on phosphorus solubilization has been confirmed, so the future perspective of our investigations should be directed to examination of microbiological leaching of apatite mixtures with sulphide substrates, and their potential use in quality improvement of alkaline soils., Postupci rastvaranja fosfora iz nerastvornih fosfatnih ruda pomoću acidofilnih autotrofa i heterotrofa spadaju u veoma bitna istraživanja, zbog moguće primene ovih ruda kao đubriva, čija je upotreba ekonomski i ekološki prihvatljivija od industrijskih fosfatnih đubriva. Predmet ovog rada je bio da se ispita mogućnost rastvaranja fosfora iz fosfatne rude sa ležišta Lisina (Bosilegrad), u laboratorijskim uslovima, dejstvom sumporne kiseline generisane pomoću bakterijske kulture Acidithiobacillus (At.) ferrooxidans, izolovane i selekcionisane sa jalovišta površinskog kopa rudnika bakra u Boru. Cilj eksperimenta je da se utvrdi da li je moguće rudu sa navedenog ležišta u kombinaciji sa ispitivanom bakterijskom kulturom koristiti kao prirodno đubrivo. Dobijeni rezultati pokazuju da se tokom eksperimenta rastvara fosfor iz ispitivane rude pod uticajem At. ferrooxidans i da je stepen rastvaranja 24,5 %, dok je rastvaranje fosfora u kontrolnoj suspenziji (bez At. ferrooxidans) iznosilo 7,2 %. Uticaj At. ferrooxidans na rastvaranje fosfora je potvrđen, tako da dalja istraživanja treba usmeriti na ispitivanja mikrobiološkog luženja mešavina apatita sa sulfidnim supstratima, zbog eventualne primene vezane za poboljšanje kvaliteta alkalnih zemljišta.",
journal = "Zaštita materijala",
title = "Examination of phosphate ores bioleaching from Lisina deposit, Ispitivanje mogućnosti bioluženja fosfora iz fosfatne rude sa ležišta Lisina",
volume = "53",
number = "3",
pages = "225-230",
url = "https://hdl.handle.net/21.15107/rcub_cherry_141"
}

Avdalović, J., Beškoski, V., Ranđelović, D., Stojanović, M. D., Zildžović, S.,& Vrvić, M. M.. (2012). Examination of phosphate ores bioleaching from Lisina deposit. in Zaštita materijala, 53(3), 225-230.
https://hdl.handle.net/21.15107/rcub_cherry_141

Avdalović J, Beškoski V, Ranđelović D, Stojanović MD, Zildžović S, Vrvić MM. Examination of phosphate ores bioleaching from Lisina deposit. in Zaštita materijala. 2012;53(3):225-230.
https://hdl.handle.net/21.15107/rcub_cherry_141 .

Avdalović, Jelena, Beškoski, Vladimir, Ranđelović, Danijela, Stojanović, Mirjana D., Zildžović, Snežana, Vrvić, Miroslav M., "Examination of phosphate ores bioleaching from Lisina deposit" in Zaštita materijala, 53, no. 3 (2012):225-230,
https://hdl.handle.net/21.15107/rcub_cherry_141 .

TY  - JOUR
AU  - Milic, J. S.
AU  - Beškoski, Vladimir
AU  - Ranđelović, Danijela
AU  - Stojanovic, J.
AU  - Vrvić, Miroslav M.
PY  - 2012
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1541
AB  - This study visually documents the mechanical contact and interaction between the bacterial cells of two biogeocenotically different strains of Acidithiobacillus ferrooxidans (At. ferrooxidans) and oil shale containing pyrite. Atomic force microscopy (AFM) imaging was used to visualise initial interaction between the microorganisms and the surface minerals of an oil shale and to evaluate bacterial effects in the first hours of the bioleaching process. Acidithiobacillus ferrooxidans was attached to the shale surface already after 2 h, and after 48 h, numerous cells covered the surface with a biofilm. After 5 day incubation with At. ferrooxidans, AFM imaging revealed ellipsoid etched pits that represent footprints left by detached cells. Combining AFM surface imaging and leaching analysis following bacterial colonisation of oil shale layers demonstrates that an initial attachment to the surface is necessary for the leaching and that later on, once a sufficient concentration of Fe2+ ions in the solution is achieved, cells detach to become free cells, and leaching occurs primarily by the Fe3+. This experiment confirmed that microorganisms isolated from sites in which a particular substrate is found will demonstrate stronger binding to that substrate.
PB  - Technical Faculty, Bor-Serbia, Bor
T2  - Journal of mining and metallurgy, Section B: Metallurgy
T1  - Visualisation of the Interaction Between Acidithiobacillus Ferrooxidans and Oil Shale by Atomic Force Microscopy
VL  - 48
IS  - 2
SP  - 207
EP  - 217
DO  - 10.2298/JMMB110923016M
ER  - 

@article{
author = "Milic, J. S. and Beškoski, Vladimir and Ranđelović, Danijela and Stojanovic, J. and Vrvić, Miroslav M.",
year = "2012",
abstract = "This study visually documents the mechanical contact and interaction between the bacterial cells of two biogeocenotically different strains of Acidithiobacillus ferrooxidans (At. ferrooxidans) and oil shale containing pyrite. Atomic force microscopy (AFM) imaging was used to visualise initial interaction between the microorganisms and the surface minerals of an oil shale and to evaluate bacterial effects in the first hours of the bioleaching process. Acidithiobacillus ferrooxidans was attached to the shale surface already after 2 h, and after 48 h, numerous cells covered the surface with a biofilm. After 5 day incubation with At. ferrooxidans, AFM imaging revealed ellipsoid etched pits that represent footprints left by detached cells. Combining AFM surface imaging and leaching analysis following bacterial colonisation of oil shale layers demonstrates that an initial attachment to the surface is necessary for the leaching and that later on, once a sufficient concentration of Fe2+ ions in the solution is achieved, cells detach to become free cells, and leaching occurs primarily by the Fe3+. This experiment confirmed that microorganisms isolated from sites in which a particular substrate is found will demonstrate stronger binding to that substrate.",
publisher = "Technical Faculty, Bor-Serbia, Bor",
journal = "Journal of mining and metallurgy, Section B: Metallurgy",
title = "Visualisation of the Interaction Between Acidithiobacillus Ferrooxidans and Oil Shale by Atomic Force Microscopy",
volume = "48",
number = "2",
pages = "207-217",
doi = "10.2298/JMMB110923016M"
}

Milic, J. S., Beškoski, V., Ranđelović, D., Stojanovic, J.,& Vrvić, M. M.. (2012). Visualisation of the Interaction Between Acidithiobacillus Ferrooxidans and Oil Shale by Atomic Force Microscopy. in Journal of mining and metallurgy, Section B: Metallurgy
Technical Faculty, Bor-Serbia, Bor., 48(2), 207-217.
https://doi.org/10.2298/JMMB110923016M

Milic JS, Beškoski V, Ranđelović D, Stojanovic J, Vrvić MM. Visualisation of the Interaction Between Acidithiobacillus Ferrooxidans and Oil Shale by Atomic Force Microscopy. in Journal of mining and metallurgy, Section B: Metallurgy. 2012;48(2):207-217.
doi:10.2298/JMMB110923016M .

Milic, J. S., Beškoski, Vladimir, Ranđelović, Danijela, Stojanovic, J., Vrvić, Miroslav M., "Visualisation of the Interaction Between Acidithiobacillus Ferrooxidans and Oil Shale by Atomic Force Microscopy" in Journal of mining and metallurgy, Section B: Metallurgy, 48, no. 2 (2012):207-217,
https://doi.org/10.2298/JMMB110923016M . .