TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Milovanović, Vladimir
AU  - Vasiljević, Zorka Z
AU  - Stamenković, Zoran
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1374
AB  - This paper presents an overview of semiconductor materials used in gas sensors, their technology, design, and application. Semiconductor materials include metal oxides, conducting polymers, carbon nanotubes, and 2D materials. Metal oxides are most often the first choice due to their ease of fabrication, low cost, high sensitivity, and stability. Some of their disadvantages are low selectivity and high operating temperature. Conducting polymers have the advantage of a low operating temperature and can detect many organic vapors. They are flexible but affected by humidity. Carbon nanotubes are chemically and mechanically stable and are sensitive towards NO and NH3, but need dopants or modifications to sense other gases. Graphene, transition metal chalcogenides, boron nitride, transition metal carbides/nitrides, metal organic frameworks, and metal oxide nanosheets as 2D materials represent gas-sensing materials of the future, especially in medical devices, such as breath sensing. This overview covers the most used semiconducting materials in gas sensing, their synthesis methods and morphology, especially oxide nanostructures, heterostructures, and 2D materials, as well as sensor technology and design, application in advance electronic circuits and systems, and research challenges from the perspective of emerging technologies.
PB  - MDPI, Basel
T2  - Sensors
T1  - Semiconductor Gas Sensors: Materials, Technology, Design, and Application
IS  - 22
VL  - 20
DO  - 10.3390/s20226694
ER  - 

@article{
author = "Nikolić, Maria Vesna and Milovanović, Vladimir and Vasiljević, Zorka Z and Stamenković, Zoran",
year = "2020",
abstract = "This paper presents an overview of semiconductor materials used in gas sensors, their technology, design, and application. Semiconductor materials include metal oxides, conducting polymers, carbon nanotubes, and 2D materials. Metal oxides are most often the first choice due to their ease of fabrication, low cost, high sensitivity, and stability. Some of their disadvantages are low selectivity and high operating temperature. Conducting polymers have the advantage of a low operating temperature and can detect many organic vapors. They are flexible but affected by humidity. Carbon nanotubes are chemically and mechanically stable and are sensitive towards NO and NH3, but need dopants or modifications to sense other gases. Graphene, transition metal chalcogenides, boron nitride, transition metal carbides/nitrides, metal organic frameworks, and metal oxide nanosheets as 2D materials represent gas-sensing materials of the future, especially in medical devices, such as breath sensing. This overview covers the most used semiconducting materials in gas sensing, their synthesis methods and morphology, especially oxide nanostructures, heterostructures, and 2D materials, as well as sensor technology and design, application in advance electronic circuits and systems, and research challenges from the perspective of emerging technologies.",
publisher = "MDPI, Basel",
journal = "Sensors",
title = "Semiconductor Gas Sensors: Materials, Technology, Design, and Application",
number = "22",
volume = "20",
doi = "10.3390/s20226694"
}

Nikolić, M. V., Milovanović, V., Vasiljević, Z. Z.,& Stamenković, Z.. (2020). Semiconductor Gas Sensors: Materials, Technology, Design, and Application. in Sensors
MDPI, Basel., 20(22).
https://doi.org/10.3390/s20226694

Nikolić MV, Milovanović V, Vasiljević ZZ, Stamenković Z. Semiconductor Gas Sensors: Materials, Technology, Design, and Application. in Sensors. 2020;20(22).
doi:10.3390/s20226694 .

Nikolić, Maria Vesna, Milovanović, Vladimir, Vasiljević, Zorka Z, Stamenković, Zoran, "Semiconductor Gas Sensors: Materials, Technology, Design, and Application" in Sensors, 20, no. 22 (2020),
https://doi.org/10.3390/s20226694 . .

TY  - JOUR
AU  - Vasiljević, Zorka Z
AU  - Dojčinović, Milena
AU  - Krstic, Jugoslav B.
AU  - Ribić, Vesna
AU  - Tadić, Nenad B.
AU  - Ognjanović, Milos
AU  - Auger, Sandrine
AU  - Vidic, Jasmina
AU  - Nikolić, Maria Vesna
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1360
AB  - Nanocrystalline iron manganite powder was synthesized using the sol-gel combustion process, with glycine as fuel. It was further calcined at 900 degrees C for 8 h, resulting in the formation of a loose cubic FeMnO3 powder with a small specific surface area, net-like structure and plate-like particles as confirmed by XRD, N-2 physisorption, FESEM and TEM analyses. The metal ion release was studied by ICP-OES and showed that less than 10 ppb of Fe or Mn ions were released by leaching in water, but 0.36 ppm Fe and 3.69 ppm Mn was found in LB (Luria-Bertani) bacterial medium. The generation of reactive oxygen species (ROS) was monitored in distilled water and bacterial medium and showed that FeMnO3 particles do not generate O-2 & x2d9;(-) ions with or without UV irradiation, but synthesize H2O2 and show an antioxidative effect. Besides the higher stability of FeMnO3 particles in aqueous solution they showed an inhibitory effect on Bacillus subtilis growth in LB medium even at low concentrations (0.01 mg ml(-1)), but not in BHI medium even at 1 mg ml(-1). This study points out that the mechanism of antibacterial action of engineered metal oxides needs continued investigation and specific experimental controls.
PB  - Royal Soc Chemistry, Cambridge
T2  - RSC Advances
T1  - Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis
EP  - 13888
IS  - 23
SP  - 13879
VL  - 10
DO  - 10.1039/d0ra01809k
ER  - 

@article{
author = "Vasiljević, Zorka Z and Dojčinović, Milena and Krstic, Jugoslav B. and Ribić, Vesna and Tadić, Nenad B. and Ognjanović, Milos and Auger, Sandrine and Vidic, Jasmina and Nikolić, Maria Vesna",
year = "2020",
abstract = "Nanocrystalline iron manganite powder was synthesized using the sol-gel combustion process, with glycine as fuel. It was further calcined at 900 degrees C for 8 h, resulting in the formation of a loose cubic FeMnO3 powder with a small specific surface area, net-like structure and plate-like particles as confirmed by XRD, N-2 physisorption, FESEM and TEM analyses. The metal ion release was studied by ICP-OES and showed that less than 10 ppb of Fe or Mn ions were released by leaching in water, but 0.36 ppm Fe and 3.69 ppm Mn was found in LB (Luria-Bertani) bacterial medium. The generation of reactive oxygen species (ROS) was monitored in distilled water and bacterial medium and showed that FeMnO3 particles do not generate O-2 & x2d9;(-) ions with or without UV irradiation, but synthesize H2O2 and show an antioxidative effect. Besides the higher stability of FeMnO3 particles in aqueous solution they showed an inhibitory effect on Bacillus subtilis growth in LB medium even at low concentrations (0.01 mg ml(-1)), but not in BHI medium even at 1 mg ml(-1). This study points out that the mechanism of antibacterial action of engineered metal oxides needs continued investigation and specific experimental controls.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "RSC Advances",
title = "Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis",
pages = "13888-13879",
number = "23",
volume = "10",
doi = "10.1039/d0ra01809k"
}

Vasiljević, Z. Z., Dojčinović, M., Krstic, J. B., Ribić, V., Tadić, N. B., Ognjanović, M., Auger, S., Vidic, J.,& Nikolić, M. V.. (2020). Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis. in RSC Advances
Royal Soc Chemistry, Cambridge., 10(23), 13879-13888.
https://doi.org/10.1039/d0ra01809k

Vasiljević ZZ, Dojčinović M, Krstic JB, Ribić V, Tadić NB, Ognjanović M, Auger S, Vidic J, Nikolić MV. Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis. in RSC Advances. 2020;10(23):13879-13888.
doi:10.1039/d0ra01809k .

Vasiljević, Zorka Z, Dojčinović, Milena, Krstic, Jugoslav B., Ribić, Vesna, Tadić, Nenad B., Ognjanović, Milos, Auger, Sandrine, Vidic, Jasmina, Nikolić, Maria Vesna, "Synthesis and antibacterial activity of iron manganite (FeMnO3) particles against the environmental bacterium Bacillus subtilis" in RSC Advances, 10, no. 23 (2020):13879-13888,
https://doi.org/10.1039/d0ra01809k . .

TY  - JOUR
AU  - Nikolić, Maria Vesna
AU  - Luković, Miloljub
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1345
AB  - A porous MgFe2O4-Fe2O3-SnO2 bulk compound with varying SnO2 content was obtained by sintering an appropriate mixture of magnesium oxide, hematite and tin oxide nanopowders at 1000 and 1100 degrees C. The obtained structure was confirmed by X-ray diffraction analysis. Scanning electron microscopy was used to analyze sample morphology, showing that the addition of SnO2 resulted in an inhomogeneous microstructure with smaller grain size especially at 1000 degrees C. Significant grain growth of hematite grains was noted at 1100 degrees C. The influence of relative humidity in the range 30-90% was monitored at room temperature (25 degrees C) in the frequency range 42 Hz-1 MHz. The highest reduction of impedance with humidity was noted at lower frequency. Addition of low amounts of SnO(2)and sintering at 1000 degrees C resulted in the highest sensitivity at 105 Hz of 0.391 M Omega/%RH in the RH30-90% range, while the compound with the highest amount of SnO2 showed the largest decrease in impedance with increase in relative humidity similar to 26 times. All samples showed low hysteresis (below 2%). Complex impedance data was analyzed using equivalent circuits reflecting the dominant influence of the grain boundary in the lower relative humidity range (30-60%) and both grain boundary and grain components in the higher relative humidity range (60-90%).
PB  - MDPI, Basel
T2  - Chemosensors
T1  - Influence of SnO2 Content on the Humidity Dependent Impedance of the MgFe2O4-Fe2O3-SnO2 Compound
IS  - 2
VL  - 8
DO  - 10.3390/chemosensors8020039
ER  - 

@article{
author = "Nikolić, Maria Vesna and Luković, Miloljub",
year = "2020",
abstract = "A porous MgFe2O4-Fe2O3-SnO2 bulk compound with varying SnO2 content was obtained by sintering an appropriate mixture of magnesium oxide, hematite and tin oxide nanopowders at 1000 and 1100 degrees C. The obtained structure was confirmed by X-ray diffraction analysis. Scanning electron microscopy was used to analyze sample morphology, showing that the addition of SnO2 resulted in an inhomogeneous microstructure with smaller grain size especially at 1000 degrees C. Significant grain growth of hematite grains was noted at 1100 degrees C. The influence of relative humidity in the range 30-90% was monitored at room temperature (25 degrees C) in the frequency range 42 Hz-1 MHz. The highest reduction of impedance with humidity was noted at lower frequency. Addition of low amounts of SnO(2)and sintering at 1000 degrees C resulted in the highest sensitivity at 105 Hz of 0.391 M Omega/%RH in the RH30-90% range, while the compound with the highest amount of SnO2 showed the largest decrease in impedance with increase in relative humidity similar to 26 times. All samples showed low hysteresis (below 2%). Complex impedance data was analyzed using equivalent circuits reflecting the dominant influence of the grain boundary in the lower relative humidity range (30-60%) and both grain boundary and grain components in the higher relative humidity range (60-90%).",
publisher = "MDPI, Basel",
journal = "Chemosensors",
title = "Influence of SnO2 Content on the Humidity Dependent Impedance of the MgFe2O4-Fe2O3-SnO2 Compound",
number = "2",
volume = "8",
doi = "10.3390/chemosensors8020039"
}

Nikolić, M. V.,& Luković, M.. (2020). Influence of SnO2 Content on the Humidity Dependent Impedance of the MgFe2O4-Fe2O3-SnO2 Compound. in Chemosensors
MDPI, Basel., 8(2).
https://doi.org/10.3390/chemosensors8020039

Nikolić MV, Luković M. Influence of SnO2 Content on the Humidity Dependent Impedance of the MgFe2O4-Fe2O3-SnO2 Compound. in Chemosensors. 2020;8(2).
doi:10.3390/chemosensors8020039 .

Nikolić, Maria Vesna, Luković, Miloljub, "Influence of SnO2 Content on the Humidity Dependent Impedance of the MgFe2O4-Fe2O3-SnO2 Compound" in Chemosensors, 8, no. 2 (2020),
https://doi.org/10.3390/chemosensors8020039 . .