TY  - CONF
AU  - Vujčić, Ivica
AU  - Porobić, Slavica
AU  - Mašić, Slobodan
AU  - Marinović-Cincović, Milena
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12224
AB  - Liqueur from green walnuts is one of the many traditional medicines in folk medicine. It owes its healing properties to the main ingredient - unripe green walnuts. Green walnuts are a natural reservoir of vitamin C, vitamin B complex, vitamin E, calcium, potassium, magnesium, phosphorus, iron, zinc and iodine. Liqueur made from green walnuts is mostly used for problems with the thyroid gland, anemia, and various stomach infections. The liqueur is made by adding green walnuts to a container with sugar or honey and brandy, and leaving them to be exposed to the sun's rays for a period of 40 days. Photons accelerate the release of medicinal substances from green walnuts. This period of exposure is quite long, the quality of the liqueur is affected by the amount of solar energy delivered during that period, and contamination may occur during manual handling. All these problems can be solved by using photons from a radioactive gamma source instead of photons from the sun. The paper describes the process of obtaining liqueur from green walnuts using gamma radiation, as well as the comparison of the composition of liqueur obtained in the traditional way, with the effect of sunlight, and the application of an innovative method using gamma rays.
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Production of liqueur from green walnuts using ionizing radiation
SP  - 70
EP  - 70
DO  - 10.21175/rad.abstr.book.2023.16.2
ER  - 

@conference{
author = "Vujčić, Ivica and Porobić, Slavica and Mašić, Slobodan and Marinović-Cincović, Milena",
year = "2023",
abstract = "Liqueur from green walnuts is one of the many traditional medicines in folk medicine. It owes its healing properties to the main ingredient - unripe green walnuts. Green walnuts are a natural reservoir of vitamin C, vitamin B complex, vitamin E, calcium, potassium, magnesium, phosphorus, iron, zinc and iodine. Liqueur made from green walnuts is mostly used for problems with the thyroid gland, anemia, and various stomach infections. The liqueur is made by adding green walnuts to a container with sugar or honey and brandy, and leaving them to be exposed to the sun's rays for a period of 40 days. Photons accelerate the release of medicinal substances from green walnuts. This period of exposure is quite long, the quality of the liqueur is affected by the amount of solar energy delivered during that period, and contamination may occur during manual handling. All these problems can be solved by using photons from a radioactive gamma source instead of photons from the sun. The paper describes the process of obtaining liqueur from green walnuts using gamma radiation, as well as the comparison of the composition of liqueur obtained in the traditional way, with the effect of sunlight, and the application of an innovative method using gamma rays.",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Production of liqueur from green walnuts using ionizing radiation",
pages = "70-70",
doi = "10.21175/rad.abstr.book.2023.16.2"
}

Vujčić, I., Porobić, S., Mašić, S.,& Marinović-Cincović, M.. (2023). Production of liqueur from green walnuts using ionizing radiation. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 70-70.
https://doi.org/10.21175/rad.abstr.book.2023.16.2

Vujčić I, Porobić S, Mašić S, Marinović-Cincović M. Production of liqueur from green walnuts using ionizing radiation. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:70-70.
doi:10.21175/rad.abstr.book.2023.16.2 .

Vujčić, Ivica, Porobić, Slavica, Mašić, Slobodan, Marinović-Cincović, Milena, "Production of liqueur from green walnuts using ionizing radiation" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):70-70,
https://doi.org/10.21175/rad.abstr.book.2023.16.2 . .

TY  - JOUR
AU  - Sandeva, Ivana
AU  - Spasevska, Hristina
AU  - Ginovska, Margarita
AU  - Stojanovska-Georgievska, Lihnida
AU  - Mašić, Slobodan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10520
AB  - By introducing standard physical methods for the detection of irradiated herbs and spices by photostimulated luminescence and thermoluminescence, measurements of different irradiated samples have been undertaken and an analysis of the results has been done. Since luminescence may occur under natural and artificial light stimulation on which herbs and spices may be exposed during storage, leading to false-negative results and disabling their proper identification, studied samples have been kept under different light conditions for different periods. The optical bleaching of the photostimulated luminescence and thermoluminescence signal has been detected in all cases. The strong influence of light, natural and artificial, on the photostimulated luminescence signal has been determined.
T2  - Radiation Effects and Defects in Solids
T1  - Light-induced fading of the photostimulated luminescence and thermoluminescence for irradiated silicate samples
VL  - 178
IS  - 3-4
SP  - 366
EP  - 375
DO  - 10.1080/10420150.2022.2148248
ER  - 

@article{
author = "Sandeva, Ivana and Spasevska, Hristina and Ginovska, Margarita and Stojanovska-Georgievska, Lihnida and Mašić, Slobodan",
year = "2023",
abstract = "By introducing standard physical methods for the detection of irradiated herbs and spices by photostimulated luminescence and thermoluminescence, measurements of different irradiated samples have been undertaken and an analysis of the results has been done. Since luminescence may occur under natural and artificial light stimulation on which herbs and spices may be exposed during storage, leading to false-negative results and disabling their proper identification, studied samples have been kept under different light conditions for different periods. The optical bleaching of the photostimulated luminescence and thermoluminescence signal has been detected in all cases. The strong influence of light, natural and artificial, on the photostimulated luminescence signal has been determined.",
journal = "Radiation Effects and Defects in Solids",
title = "Light-induced fading of the photostimulated luminescence and thermoluminescence for irradiated silicate samples",
volume = "178",
number = "3-4",
pages = "366-375",
doi = "10.1080/10420150.2022.2148248"
}

Sandeva, I., Spasevska, H., Ginovska, M., Stojanovska-Georgievska, L.,& Mašić, S.. (2023). Light-induced fading of the photostimulated luminescence and thermoluminescence for irradiated silicate samples. in Radiation Effects and Defects in Solids, 178(3-4), 366-375.
https://doi.org/10.1080/10420150.2022.2148248

Sandeva I, Spasevska H, Ginovska M, Stojanovska-Georgievska L, Mašić S. Light-induced fading of the photostimulated luminescence and thermoluminescence for irradiated silicate samples. in Radiation Effects and Defects in Solids. 2023;178(3-4):366-375.
doi:10.1080/10420150.2022.2148248 .

Sandeva, Ivana, Spasevska, Hristina, Ginovska, Margarita, Stojanovska-Georgievska, Lihnida, Mašić, Slobodan, "Light-induced fading of the photostimulated luminescence and thermoluminescence for irradiated silicate samples" in Radiation Effects and Defects in Solids, 178, no. 3-4 (2023):366-375,
https://doi.org/10.1080/10420150.2022.2148248 . .

TY  - JOUR
AU  - Bektashi, Nora Limani
AU  - Mladenoska, Irina
AU  - Popovska, Olga
AU  - Dimitrovski, Darko
AU  - Spasevska, Hristina
AU  - Reka, Arianit A.
AU  - Mašić, Slobodan
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11571
AB  - The major bioactive component of black pepper (Piper nigrum) is piperine which has demonstrated beneficial therapeutic properties. The purpose of this research was to investigate the effects of different irradiation doses on the content of piperine in black pepper. Samples were irradiated with 60Co γ-rays (at absorbed doses of 0.5, 1, 3, 5, 7, 10, and 12 kGy). Thin-layer chromatography (TLC) and UV–Vis spectrophotometry methods were used for measuring the piperine content in the samples. TLC was performed using three mobile phases (1. toluene:ethyl acetate, 7:3 v/v; 2. acetone:n-hexane, 6:4 v/v; 3. toluene:methanol, 8.5:1.5 v/v) and the retention factor (R f) value for piperine was equal to 0.66, 0.94, and 0.67, respectively. The content of piperine in γ-irradiated samples of black pepper was found to be between 0.04 and 1.05% w/w from the spectrophotometry analyses. Irradiation slightly decreased the piperine content of black pepper. It was found that piperine crude yield from black pepper was from 1.10 (the unirradiated sample) to 1.69, 1.07, 0.60, 0.90, 0.30, 1.20, 0.80% for irradiated samples, respectively. Microbiological analyses were performed with standard plate count method, which resulted in a decreasing number of the total cell count of microbial cells with increasing the radiation dose. Treatment with irradiation reduced the population of bacteria by 4 logs.
T2  - Open Chemistry
T1  - Assessment of the impact of γ-irradiation on the piperine content and microbial quality of black pepper
VL  - 21
IS  - 1
SP  - 20220356
DO  - 10.1515/chem-2022-0356
ER  - 

@article{
author = "Bektashi, Nora Limani and Mladenoska, Irina and Popovska, Olga and Dimitrovski, Darko and Spasevska, Hristina and Reka, Arianit A. and Mašić, Slobodan",
year = "2023",
abstract = "The major bioactive component of black pepper (Piper nigrum) is piperine which has demonstrated beneficial therapeutic properties. The purpose of this research was to investigate the effects of different irradiation doses on the content of piperine in black pepper. Samples were irradiated with 60Co γ-rays (at absorbed doses of 0.5, 1, 3, 5, 7, 10, and 12 kGy). Thin-layer chromatography (TLC) and UV–Vis spectrophotometry methods were used for measuring the piperine content in the samples. TLC was performed using three mobile phases (1. toluene:ethyl acetate, 7:3 v/v; 2. acetone:n-hexane, 6:4 v/v; 3. toluene:methanol, 8.5:1.5 v/v) and the retention factor (R f) value for piperine was equal to 0.66, 0.94, and 0.67, respectively. The content of piperine in γ-irradiated samples of black pepper was found to be between 0.04 and 1.05% w/w from the spectrophotometry analyses. Irradiation slightly decreased the piperine content of black pepper. It was found that piperine crude yield from black pepper was from 1.10 (the unirradiated sample) to 1.69, 1.07, 0.60, 0.90, 0.30, 1.20, 0.80% for irradiated samples, respectively. Microbiological analyses were performed with standard plate count method, which resulted in a decreasing number of the total cell count of microbial cells with increasing the radiation dose. Treatment with irradiation reduced the population of bacteria by 4 logs.",
journal = "Open Chemistry",
title = "Assessment of the impact of γ-irradiation on the piperine content and microbial quality of black pepper",
volume = "21",
number = "1",
pages = "20220356",
doi = "10.1515/chem-2022-0356"
}

Bektashi, N. L., Mladenoska, I., Popovska, O., Dimitrovski, D., Spasevska, H., Reka, A. A.,& Mašić, S.. (2023). Assessment of the impact of γ-irradiation on the piperine content and microbial quality of black pepper. in Open Chemistry, 21(1), 20220356.
https://doi.org/10.1515/chem-2022-0356

Bektashi NL, Mladenoska I, Popovska O, Dimitrovski D, Spasevska H, Reka AA, Mašić S. Assessment of the impact of γ-irradiation on the piperine content and microbial quality of black pepper. in Open Chemistry. 2023;21(1):20220356.
doi:10.1515/chem-2022-0356 .

Bektashi, Nora Limani, Mladenoska, Irina, Popovska, Olga, Dimitrovski, Darko, Spasevska, Hristina, Reka, Arianit A., Mašić, Slobodan, "Assessment of the impact of γ-irradiation on the piperine content and microbial quality of black pepper" in Open Chemistry, 21, no. 1 (2023):20220356,
https://doi.org/10.1515/chem-2022-0356 . .

TY  - JOUR
AU  - Ranković, Bojan
AU  - Gajić, Vuk
AU  - Mašić, Slobodan
AU  - Pavićević, Vladimir
AU  - Vujčić, Ivica
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10550
AB  - Using ionizing radiation in treating waste sludge from a drinking water treatment plant is a well-known technique. Sludge treated with ionizing radiation can be used as fertilizer in agriculture. In this paper, the effects of aging on the physicochemical characteristics, the content of microorganisms, molds, acrylamide, heavy metal concentration, and total nutrient content in waste sludge treated with e-beam and gamma irradiation were investigated. The possibility of using treated sludge as a fertilizer in agriculture was evaluated. It has been shown that the content of acrylamide in treated sludge after 15 months of storage does not exceed the limits for sludge to be used as fertilizer. If the sludge is stored in closed bags in a dark place, aging does not increase total microorganisms and molds. The research also showed that the sludge's physicochemical characteristics treated in this way do not decrease under the influence of aging. Finally, it has been shown that aging does not change the concentration of heavy metals and total nutrients in sludge treated by ionizing irradiation.
T2  - Applied Radiation and Isotopes
T1  - Possibility of using ionizing radiation treated sludge from drinking water treatment plant as fertilizer in agriculture: Effects of aging
VL  - 192
SP  - 110602
DO  - 10.1016/j.apradiso.2022.110602
ER  - 

@article{
author = "Ranković, Bojan and Gajić, Vuk and Mašić, Slobodan and Pavićević, Vladimir and Vujčić, Ivica",
year = "2023",
abstract = "Using ionizing radiation in treating waste sludge from a drinking water treatment plant is a well-known technique. Sludge treated with ionizing radiation can be used as fertilizer in agriculture. In this paper, the effects of aging on the physicochemical characteristics, the content of microorganisms, molds, acrylamide, heavy metal concentration, and total nutrient content in waste sludge treated with e-beam and gamma irradiation were investigated. The possibility of using treated sludge as a fertilizer in agriculture was evaluated. It has been shown that the content of acrylamide in treated sludge after 15 months of storage does not exceed the limits for sludge to be used as fertilizer. If the sludge is stored in closed bags in a dark place, aging does not increase total microorganisms and molds. The research also showed that the sludge's physicochemical characteristics treated in this way do not decrease under the influence of aging. Finally, it has been shown that aging does not change the concentration of heavy metals and total nutrients in sludge treated by ionizing irradiation.",
journal = "Applied Radiation and Isotopes",
title = "Possibility of using ionizing radiation treated sludge from drinking water treatment plant as fertilizer in agriculture: Effects of aging",
volume = "192",
pages = "110602",
doi = "10.1016/j.apradiso.2022.110602"
}

Ranković, B., Gajić, V., Mašić, S., Pavićević, V.,& Vujčić, I.. (2023). Possibility of using ionizing radiation treated sludge from drinking water treatment plant as fertilizer in agriculture: Effects of aging. in Applied Radiation and Isotopes, 192, 110602.
https://doi.org/10.1016/j.apradiso.2022.110602

Ranković B, Gajić V, Mašić S, Pavićević V, Vujčić I. Possibility of using ionizing radiation treated sludge from drinking water treatment plant as fertilizer in agriculture: Effects of aging. in Applied Radiation and Isotopes. 2023;192:110602.
doi:10.1016/j.apradiso.2022.110602 .

Ranković, Bojan, Gajić, Vuk, Mašić, Slobodan, Pavićević, Vladimir, Vujčić, Ivica, "Possibility of using ionizing radiation treated sludge from drinking water treatment plant as fertilizer in agriculture: Effects of aging" in Applied Radiation and Isotopes, 192 (2023):110602,
https://doi.org/10.1016/j.apradiso.2022.110602 . .

TY  - JOUR
AU  - Gajić, Vuk A.
AU  - Mirković, Nikola R.
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10522
AB  - Special high-protein foods suitable for diabetics must be treated to ensure the complete absence of microorganisms and bacteria. It is also important to achieve that this treatment does not change the nutritional value of the product. Among the new decontamination technologies, low-energy electron-beam treatment has proven to be an effective technique for inactivating bacteria with minimal impact on food quality. The paper aims to analyze the influence of low-energy electron-beam irradiation on the microbiological properties and nutritional value of high-protein foods.
T2  - Nuclear Technology and Radiation Protection
T1  - Use of low-energy electron-beam in the treatment of special food products with a high protein content
VL  - 37
IS  - 2
SP  - 153
EP  - 158
DO  - 10.2298/ntrp2202153g
ER  - 

@article{
author = "Gajić, Vuk A. and Mirković, Nikola R. and Vujčić, Ivica and Mašić, Slobodan",
year = "2022",
abstract = "Special high-protein foods suitable for diabetics must be treated to ensure the complete absence of microorganisms and bacteria. It is also important to achieve that this treatment does not change the nutritional value of the product. Among the new decontamination technologies, low-energy electron-beam treatment has proven to be an effective technique for inactivating bacteria with minimal impact on food quality. The paper aims to analyze the influence of low-energy electron-beam irradiation on the microbiological properties and nutritional value of high-protein foods.",
journal = "Nuclear Technology and Radiation Protection",
title = "Use of low-energy electron-beam in the treatment of special food products with a high protein content",
volume = "37",
number = "2",
pages = "153-158",
doi = "10.2298/ntrp2202153g"
}

Gajić, V. A., Mirković, N. R., Vujčić, I.,& Mašić, S.. (2022). Use of low-energy electron-beam in the treatment of special food products with a high protein content. in Nuclear Technology and Radiation Protection, 37(2), 153-158.
https://doi.org/10.2298/ntrp2202153g

Gajić VA, Mirković NR, Vujčić I, Mašić S. Use of low-energy electron-beam in the treatment of special food products with a high protein content. in Nuclear Technology and Radiation Protection. 2022;37(2):153-158.
doi:10.2298/ntrp2202153g .

Gajić, Vuk A., Mirković, Nikola R., Vujčić, Ivica, Mašić, Slobodan, "Use of low-energy electron-beam in the treatment of special food products with a high protein content" in Nuclear Technology and Radiation Protection, 37, no. 2 (2022):153-158,
https://doi.org/10.2298/ntrp2202153g . .

TY  - JOUR
AU  - Mašić, Slobodan
AU  - Vujčić, Ivica
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10080
AB  - Lyophilization or freeze-drying is the technique of removing ice or other frozen solvents from a material through sublimation and the removal of bound water molecules through the process of desorption. Drying occurs in an absolute vacuum at temperatures from −40°C to −50°C. This technique is often used for the conservation of fruits, especially berries. During this process, the water changes from frozen to gaseous, with no thawing. Due to low temperatures and the high vacuum, most microorganisms are rendered inactive during the lyophilization process. However, if there is a necessity to destroy all microorganisms from treated food, subsequent irradiation with gamma rays is an appropriate method. This paper investigated the influence of different doses of gamma radiation on lyophilized berries’ microbiological characteristics. It was shown that the radiation dose of 7 kGy is sufficient to eliminate the total number of microorganisms (excluding molds) to the extent that the number falls below the permitted limit according t o the law on the microbiological safety of foodstuffs of the Republic of Serbia, and 5 kGy is enough for molds to be rendered inactive. It was also concluded that gamma irradiation does not affect the nutritional value of lyophilized berries.
T2  - Nukleonika
T1  - Effect of gamma irradiation on microbiological and nutritional properties of the freeze-dried berries
VL  - 66
IS  - 4
SP  - 221
EP  - 225
DO  - 10.2478/nuka-2021-0032
ER  - 

@article{
author = "Mašić, Slobodan and Vujčić, Ivica",
year = "2021",
abstract = "Lyophilization or freeze-drying is the technique of removing ice or other frozen solvents from a material through sublimation and the removal of bound water molecules through the process of desorption. Drying occurs in an absolute vacuum at temperatures from −40°C to −50°C. This technique is often used for the conservation of fruits, especially berries. During this process, the water changes from frozen to gaseous, with no thawing. Due to low temperatures and the high vacuum, most microorganisms are rendered inactive during the lyophilization process. However, if there is a necessity to destroy all microorganisms from treated food, subsequent irradiation with gamma rays is an appropriate method. This paper investigated the influence of different doses of gamma radiation on lyophilized berries’ microbiological characteristics. It was shown that the radiation dose of 7 kGy is sufficient to eliminate the total number of microorganisms (excluding molds) to the extent that the number falls below the permitted limit according t o the law on the microbiological safety of foodstuffs of the Republic of Serbia, and 5 kGy is enough for molds to be rendered inactive. It was also concluded that gamma irradiation does not affect the nutritional value of lyophilized berries.",
journal = "Nukleonika",
title = "Effect of gamma irradiation on microbiological and nutritional properties of the freeze-dried berries",
volume = "66",
number = "4",
pages = "221-225",
doi = "10.2478/nuka-2021-0032"
}

Mašić, S.,& Vujčić, I.. (2021). Effect of gamma irradiation on microbiological and nutritional properties of the freeze-dried berries. in Nukleonika, 66(4), 221-225.
https://doi.org/10.2478/nuka-2021-0032

Mašić S, Vujčić I. Effect of gamma irradiation on microbiological and nutritional properties of the freeze-dried berries. in Nukleonika. 2021;66(4):221-225.
doi:10.2478/nuka-2021-0032 .

Mašić, Slobodan, Vujčić, Ivica, "Effect of gamma irradiation on microbiological and nutritional properties of the freeze-dried berries" in Nukleonika, 66, no. 4 (2021):221-225,
https://doi.org/10.2478/nuka-2021-0032 . .

TY  - JOUR
AU  - Gajić, Vuk A.
AU  - Vujčić, Ivica
AU  - Dražić, Gordana D.
AU  - Milovanović, Jelena
AU  - Mašić, Slobodan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10377
AB  - The Kolubara river pollutes the coastal land in the river basin and makes it unsuitable for agricultural activities in that area. Also, contaminated land poses a risk to the environment. Different methods can be used for soil decontamination. These methods include biological treatment/bioremediation, chemical oxidation, soil stabilization, physical methods, such as soil leaching, or treatment with high-energy ionizing radiation. Gamma irradiation of soil is a well-known method of inhibiting microbial activity. This paper investigated the influence of different doses and dose rates of gamma irradiation on microorganisms' decontamination of coastal soil, in the Kolubara river basin. The irradiation effects on reducing the total number of microorganisms and removing mold and pathogenic bacteria from soil samples were examined. Gamma radiation affects the soil's organic matter, causing the formation of free reactive radicals, which act as reducing and oxidizing agents, cleaving C-C bonds, and depolymerizing carbohydrates. It was found that a dose of 3 kGy of gamma radiation, neutralizes all pathogenic bacteria, a dose of 5 kGy deactivates mold in soil samples, and a dose of 10 kGy is optimal to kill all microorganisms in the samples and sterilize exposed soil. The research showed that the dose rate does not significantly affect microbiological decontamination of soil using gamma irradiation. The content of heavy metals in soil was determined, and the obtained values were compared with the remediation limit values prescribed by the regulations. It was concluded that the content of heavy metals in the analyzed soil samples is below the limit of remediation values. The only exception is the slightly increased copper content in one sample. The result of this research is the conclusion that the coastal land from the Kolubara basin can be decontaminated by gamma radiation treatment. This advanced soil treatment technology is available in Serbia because there is an industrial plant for gamma radiation treatment within the Vinča Institute.
T2  - Nuclear Technology and Radiation Protection
T1  - Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia
VL  - 36
IS  - 3
SP  - 261
EP  - 270
DO  - 10.2298/NTRP2103261G
ER  - 

@article{
author = "Gajić, Vuk A. and Vujčić, Ivica and Dražić, Gordana D. and Milovanović, Jelena and Mašić, Slobodan",
year = "2021",
abstract = "The Kolubara river pollutes the coastal land in the river basin and makes it unsuitable for agricultural activities in that area. Also, contaminated land poses a risk to the environment. Different methods can be used for soil decontamination. These methods include biological treatment/bioremediation, chemical oxidation, soil stabilization, physical methods, such as soil leaching, or treatment with high-energy ionizing radiation. Gamma irradiation of soil is a well-known method of inhibiting microbial activity. This paper investigated the influence of different doses and dose rates of gamma irradiation on microorganisms' decontamination of coastal soil, in the Kolubara river basin. The irradiation effects on reducing the total number of microorganisms and removing mold and pathogenic bacteria from soil samples were examined. Gamma radiation affects the soil's organic matter, causing the formation of free reactive radicals, which act as reducing and oxidizing agents, cleaving C-C bonds, and depolymerizing carbohydrates. It was found that a dose of 3 kGy of gamma radiation, neutralizes all pathogenic bacteria, a dose of 5 kGy deactivates mold in soil samples, and a dose of 10 kGy is optimal to kill all microorganisms in the samples and sterilize exposed soil. The research showed that the dose rate does not significantly affect microbiological decontamination of soil using gamma irradiation. The content of heavy metals in soil was determined, and the obtained values were compared with the remediation limit values prescribed by the regulations. It was concluded that the content of heavy metals in the analyzed soil samples is below the limit of remediation values. The only exception is the slightly increased copper content in one sample. The result of this research is the conclusion that the coastal land from the Kolubara basin can be decontaminated by gamma radiation treatment. This advanced soil treatment technology is available in Serbia because there is an industrial plant for gamma radiation treatment within the Vinča Institute.",
journal = "Nuclear Technology and Radiation Protection",
title = "Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia",
volume = "36",
number = "3",
pages = "261-270",
doi = "10.2298/NTRP2103261G"
}

Gajić, V. A., Vujčić, I., Dražić, G. D., Milovanović, J.,& Mašić, S.. (2021). Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia. in Nuclear Technology and Radiation Protection, 36(3), 261-270.
https://doi.org/10.2298/NTRP2103261G

Gajić VA, Vujčić I, Dražić GD, Milovanović J, Mašić S. Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia. in Nuclear Technology and Radiation Protection. 2021;36(3):261-270.
doi:10.2298/NTRP2103261G .

Gajić, Vuk A., Vujčić, Ivica, Dražić, Gordana D., Milovanović, Jelena, Mašić, Slobodan, "Use of high-energy ionizing radiation for microbiological decontamination of coastal soil in the Kolubara river basin, Serbia" in Nuclear Technology and Radiation Protection, 36, no. 3 (2021):261-270,
https://doi.org/10.2298/NTRP2103261G . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9559
AB  - Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.
T2  - Journal of Food Processing and Preservation
T1  - Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values
VL  - 45
IS  - 4
DO  - 10.1111/jfpp.15314
ER  - 

@article{
author = "Vujčić, Ivica and Mašić, Slobodan",
year = "2021",
abstract = "Aflatoxins are natural mycotoxins that mainly occur in areas with humid climates. One of the methods for the successful elimination of aflatoxins is gamma radiation treatment. In this paper, gamma radiation's influence on the content of aflatoxins in hemp flour and microbiological properties (total number of microorganisms, molds, and potentially pathogenic bacteria) and nutritional values were investigated. The artificial radioactive isotope of cobalt Co-60, with a dose rate of 10 kGy/hr, was used as the radiation source. Using high-performance liquid chromatography, we determined that a dose of 4 kGy was sufficient to eliminate aflatoxins below the acceptable value. An irradiation dose of 8 kGy was sufficient to eliminate the total number of microorganisms and molds. Also, a treatment of 3 kGy is enough to remove all bacteria. Finally, it was shown that gamma irradiation does not affect the nutritional value of the product. Novelty Impact Statement: Hemp flour is rich in healthy fats, magnesium, fiber, and protein. However, it may be contaminated with aflatoxins, microorganisms, molds, and potentially pathogenic bacteria. Gamma irradiation is an effective method of food preservation that guarantees food decontamination and protection of nutrients. In this paper, an adequate dose of gamma radiation to preserve hemp flour has been established. © 2021 Wiley Periodicals LLC.",
journal = "Journal of Food Processing and Preservation",
title = "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values",
volume = "45",
number = "4",
doi = "10.1111/jfpp.15314"
}

Vujčić, I.,& Mašić, S.. (2021). Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation, 45(4).
https://doi.org/10.1111/jfpp.15314

Vujčić I, Mašić S. Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values. in Journal of Food Processing and Preservation. 2021;45(4).
doi:10.1111/jfpp.15314 .

Vujčić, Ivica, Mašić, Slobodan, "Preservation of hemp flour using high‐energy ionizing radiation: The effect of gamma radiation on aflatoxin inactivation, microbiological properties, and nutritional values" in Journal of Food Processing and Preservation, 45, no. 4 (2021),
https://doi.org/10.1111/jfpp.15314 . .

TY  - JOUR
AU  - Mladenovska, Irina
AU  - Bektashi, Nora Limani
AU  - Andonović, Beti
AU  - Spasevska, Hristina
AU  - Sandeva, Ivana
AU  - Arizanova, Milica
AU  - Mašić, Slobodan
AU  - Reka, Arianit A.
PY  - 2021
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10158
AB  - Spices are food additives that are used in many different areas of food technology. Most of the spices contain essential oils sensitive to thermal degradation processes. Therefore, an alternate method of decontamination, other than thermal, should be used so that the microbial safety of the spices is ensured. This study was focused on the evaluation of the effect of ionizing radiation, known as radurization, on microbiological safety in samples of red pepper, black pepper, and stinging nettle, from North Macedonia. Samples were irradiated by 60Co γ-rays. The possibility for development of a novel, shortened microbiological method was investigated. The conventional agar plate method was used, as a standard microbiological method, in order to evaluate the effect of irradiation on the microbiological safety of the food. The red pepper and the stinging nettle did not show any microbial growth when inoculated on both growth media, after being irradiated. Additionally, the photostimulated luminescence and thermoluminescence method were used as physical methods. By comparing the two glow curves for the glow ratio, the obtained values are greater than 0.1, which confirms that the samples have been irradiated.
T2  - Macedonian Journal of Chemistry and Chemical Engineering
T1  - Development of a novel microbiological method for detection of gamma irradiated spices
VL  - 40
IS  - 2
SP  - 213
EP  - 220
DO  - 10.20450/mjcce.2021.2397
ER  - 

@article{
author = "Mladenovska, Irina and Bektashi, Nora Limani and Andonović, Beti and Spasevska, Hristina and Sandeva, Ivana and Arizanova, Milica and Mašić, Slobodan and Reka, Arianit A.",
year = "2021",
abstract = "Spices are food additives that are used in many different areas of food technology. Most of the spices contain essential oils sensitive to thermal degradation processes. Therefore, an alternate method of decontamination, other than thermal, should be used so that the microbial safety of the spices is ensured. This study was focused on the evaluation of the effect of ionizing radiation, known as radurization, on microbiological safety in samples of red pepper, black pepper, and stinging nettle, from North Macedonia. Samples were irradiated by 60Co γ-rays. The possibility for development of a novel, shortened microbiological method was investigated. The conventional agar plate method was used, as a standard microbiological method, in order to evaluate the effect of irradiation on the microbiological safety of the food. The red pepper and the stinging nettle did not show any microbial growth when inoculated on both growth media, after being irradiated. Additionally, the photostimulated luminescence and thermoluminescence method were used as physical methods. By comparing the two glow curves for the glow ratio, the obtained values are greater than 0.1, which confirms that the samples have been irradiated.",
journal = "Macedonian Journal of Chemistry and Chemical Engineering",
title = "Development of a novel microbiological method for detection of gamma irradiated spices",
volume = "40",
number = "2",
pages = "213-220",
doi = "10.20450/mjcce.2021.2397"
}

Mladenovska, I., Bektashi, N. L., Andonović, B., Spasevska, H., Sandeva, I., Arizanova, M., Mašić, S.,& Reka, A. A.. (2021). Development of a novel microbiological method for detection of gamma irradiated spices. in Macedonian Journal of Chemistry and Chemical Engineering, 40(2), 213-220.
https://doi.org/10.20450/mjcce.2021.2397

Mladenovska I, Bektashi NL, Andonović B, Spasevska H, Sandeva I, Arizanova M, Mašić S, Reka AA. Development of a novel microbiological method for detection of gamma irradiated spices. in Macedonian Journal of Chemistry and Chemical Engineering. 2021;40(2):213-220.
doi:10.20450/mjcce.2021.2397 .

Mladenovska, Irina, Bektashi, Nora Limani, Andonović, Beti, Spasevska, Hristina, Sandeva, Ivana, Arizanova, Milica, Mašić, Slobodan, Reka, Arianit A., "Development of a novel microbiological method for detection of gamma irradiated spices" in Macedonian Journal of Chemistry and Chemical Engineering, 40, no. 2 (2021):213-220,
https://doi.org/10.20450/mjcce.2021.2397 . .

TY  - JOUR
AU  - Ranković, Bojan
AU  - Nikolić, Nikolina
AU  - Mašić, Slobodan
AU  - Vujčić, Ivica
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9596
AB  - The distribution of the absorbed dose within the irradiated product is a complex function of the product density and homogeneity, the position and shape of the radiation source, as well as the design of the irradiator. In this paper, detailed mapping of absorbed radiation doses in products of different density: gauze, plastic, and soil, is performed. Positions of minimum and maximum absorbed radiation dose were determined, and the homogeneity of irradiation of products was calculated using the ethanol-monochlorobenzene oscillotitrator dosimetry system. © 2020, Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - Dose mapping of products with different density irradiated in 60co irradiation facility of the Vinca institute, Serbia
VL  - 35
IS  - 1
SP  - 56
EP  - 63
DO  - 10.2298/NTRP2001056R
ER  - 

@article{
author = "Ranković, Bojan and Nikolić, Nikolina and Mašić, Slobodan and Vujčić, Ivica",
year = "2020",
abstract = "The distribution of the absorbed dose within the irradiated product is a complex function of the product density and homogeneity, the position and shape of the radiation source, as well as the design of the irradiator. In this paper, detailed mapping of absorbed radiation doses in products of different density: gauze, plastic, and soil, is performed. Positions of minimum and maximum absorbed radiation dose were determined, and the homogeneity of irradiation of products was calculated using the ethanol-monochlorobenzene oscillotitrator dosimetry system. © 2020, Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "Dose mapping of products with different density irradiated in 60co irradiation facility of the Vinca institute, Serbia",
volume = "35",
number = "1",
pages = "56-63",
doi = "10.2298/NTRP2001056R"
}

Ranković, B., Nikolić, N., Mašić, S.,& Vujčić, I.. (2020). Dose mapping of products with different density irradiated in 60co irradiation facility of the Vinca institute, Serbia. in Nuclear Technology and Radiation Protection, 35(1), 56-63.
https://doi.org/10.2298/NTRP2001056R

Ranković B, Nikolić N, Mašić S, Vujčić I. Dose mapping of products with different density irradiated in 60co irradiation facility of the Vinca institute, Serbia. in Nuclear Technology and Radiation Protection. 2020;35(1):56-63.
doi:10.2298/NTRP2001056R .

Ranković, Bojan, Nikolić, Nikolina, Mašić, Slobodan, Vujčić, Ivica, "Dose mapping of products with different density irradiated in 60co irradiation facility of the Vinca institute, Serbia" in Nuclear Technology and Radiation Protection, 35, no. 1 (2020):56-63,
https://doi.org/10.2298/NTRP2001056R . .

TY  - CONF
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
AU  - Obradović, Nataša
AU  - Dramićanin, Miroslav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8519
AB  - Wooden cultural heritage serves as a very important source of information for historians and researchers. Also, it imposes an obligation on the science to keep this legacy for future generations in a proper condition. Among other techniques of conservation of wooden cultural heritage, a very suitable method is impregnation of the wood with the polymer, whereby the wood/polymer composites are formed. This paper describes the method of preparing the wood/polymer composites based on beechwood, using five different monomer systems. The method of lyophilization and subsequent polymerization by gamma radiation was used. After lyophilization and immersing in the monomer solutions, the wood samples were dried and irradiated with a dose of 25 kGy and different gamma irradiation dose rates. The weight of the samples before and after this procedure was measured. Also, changes in the mechanical properties of wood (compression test) before and after treatment were examined. We also examined the effect of radiation dose rate on polymerization. Based on the weight differences, dose rates and materials characterization we determined which of the monomer solution and dose rate are the most suitable for making beechwood/polymer composites. © 2019 Elsevier Ltd
C3  - Radiation Physics and Chemistry
T1  - Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation
VL  - 166
SP  - 108505
DO  - 10.1016/j.radphyschem.2019.108505
ER  - 

@conference{
author = "Vujčić, Ivica and Mašić, Slobodan and Obradović, Nataša and Dramićanin, Miroslav",
year = "2020",
abstract = "Wooden cultural heritage serves as a very important source of information for historians and researchers. Also, it imposes an obligation on the science to keep this legacy for future generations in a proper condition. Among other techniques of conservation of wooden cultural heritage, a very suitable method is impregnation of the wood with the polymer, whereby the wood/polymer composites are formed. This paper describes the method of preparing the wood/polymer composites based on beechwood, using five different monomer systems. The method of lyophilization and subsequent polymerization by gamma radiation was used. After lyophilization and immersing in the monomer solutions, the wood samples were dried and irradiated with a dose of 25 kGy and different gamma irradiation dose rates. The weight of the samples before and after this procedure was measured. Also, changes in the mechanical properties of wood (compression test) before and after treatment were examined. We also examined the effect of radiation dose rate on polymerization. Based on the weight differences, dose rates and materials characterization we determined which of the monomer solution and dose rate are the most suitable for making beechwood/polymer composites. © 2019 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation",
volume = "166",
pages = "108505",
doi = "10.1016/j.radphyschem.2019.108505"
}

Vujčić, I., Mašić, S., Obradović, N.,& Dramićanin, M.. (2020). Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation. in Radiation Physics and Chemistry, 166, 108505.
https://doi.org/10.1016/j.radphyschem.2019.108505

Vujčić I, Mašić S, Obradović N, Dramićanin M. Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation. in Radiation Physics and Chemistry. 2020;166:108505.
doi:10.1016/j.radphyschem.2019.108505 .

Vujčić, Ivica, Mašić, Slobodan, Obradović, Nataša, Dramićanin, Miroslav, "Preparation of beechwood/polymer composites using the method of lyophilization and gamma irradiation" in Radiation Physics and Chemistry, 166 (2020):108505,
https://doi.org/10.1016/j.radphyschem.2019.108505 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
AU  - Medić, Mina M.
AU  - Milićević, Bojana R.
AU  - Dramićanin, Miroslav
PY  - 2019
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0969806X18307163
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8003
AB  - Fabrics made of wool, linen, silk, and cotton, which are used in the making of artifacts of cultural heritage, were divided into three groups. The first group wasn't dyed, the second group was dyed with natural dye (using sour cherry), and the third one was dyed with artificial aniline dye. For the conservation purposes, all samples were exposed at ambient temperature to gamma radiation doses, from 0.5 to 25 kGy, using a Co-60 irradiator. The influence of gamma irradiation treatment on the color changes was investigated. The obtained results revealed that the irradiation affects the color changes in all samples. All samples became more or less darker under the influence of gamma irradiation. This change in darkness is most pronounced in samples dyed with natural colors. Also, the highest differences in color change and darkness were observed in linen samples. © 2018 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts
VL  - 156
SP  - 307
EP  - 313
DO  - 10.1016/j.radphyschem.2018.12.001
ER  - 

@article{
author = "Vujčić, Ivica and Mašić, Slobodan and Medić, Mina M. and Milićević, Bojana R. and Dramićanin, Miroslav",
year = "2019",
abstract = "Fabrics made of wool, linen, silk, and cotton, which are used in the making of artifacts of cultural heritage, were divided into three groups. The first group wasn't dyed, the second group was dyed with natural dye (using sour cherry), and the third one was dyed with artificial aniline dye. For the conservation purposes, all samples were exposed at ambient temperature to gamma radiation doses, from 0.5 to 25 kGy, using a Co-60 irradiator. The influence of gamma irradiation treatment on the color changes was investigated. The obtained results revealed that the irradiation affects the color changes in all samples. All samples became more or less darker under the influence of gamma irradiation. This change in darkness is most pronounced in samples dyed with natural colors. Also, the highest differences in color change and darkness were observed in linen samples. © 2018 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts",
volume = "156",
pages = "307-313",
doi = "10.1016/j.radphyschem.2018.12.001"
}

Vujčić, I., Mašić, S., Medić, M. M., Milićević, B. R.,& Dramićanin, M.. (2019). The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts. in Radiation Physics and Chemistry, 156, 307-313.
https://doi.org/10.1016/j.radphyschem.2018.12.001

Vujčić I, Mašić S, Medić MM, Milićević BR, Dramićanin M. The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts. in Radiation Physics and Chemistry. 2019;156:307-313.
doi:10.1016/j.radphyschem.2018.12.001 .

Vujčić, Ivica, Mašić, Slobodan, Medić, Mina M., Milićević, Bojana R., Dramićanin, Miroslav, "The influence of gamma irradiation on the color change of wool, linen, silk, and cotton fabrics used in cultural heritage artifacts" in Radiation Physics and Chemistry, 156 (2019):307-313,
https://doi.org/10.1016/j.radphyschem.2018.12.001 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Gavrilović, Tamara V.
AU  - Sekulić, Milica
AU  - Mašić, Slobodan
AU  - Putić, Slaviša S.
AU  - Papan, Jelena
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://linkinghub.elsevier.com/retrieve/pii/S0168583X18301666
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7669
AB  - Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses.
T2  - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms
T1  - Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor
VL  - 422
SP  - 85
EP  - 90
DO  - 10.1016/j.nimb.2018.03.002
ER  - 

@article{
author = "Vujčić, Ivica and Gavrilović, Tamara V. and Sekulić, Milica and Mašić, Slobodan and Putić, Slaviša S. and Papan, Jelena and Dramićanin, Miroslav",
year = "2018",
abstract = "Eu3+ activated LaPO4 phosphors were prepared by a high-temperature solid-state method and irradiated to different high-doses gamma-radiation in the 0-4 MGy range. No effects of high-doses of high-energy radiation on phosphor's morphology and structure were observed, as documented by electron microscopy and X-ray diffraction measurements. On the other hand, photoluminescence measurements showed that emission properties of phosphor were affected by gamma-radiation; changes in radiative properties being prominent for absorbed radiation doses up to 250 kGy after which no additional changes are observed. Judd-Ofelt analysis of emission spectra is performed to thoroughly investigate radiative properties of phosphors. Analysis showed that radiative transition probability of Eu3+ emission decreases while non-radiative probability increases upon gamma-irradiation. Quantum efficiency of emission is decreased from about 46% to 35% when Eu3+ doped LaPO4 powders are exposed to gamma-radiation of 250 kGy dose, showing no additional decrease for higher gamma-radiation doses.",
journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms",
title = "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor",
volume = "422",
pages = "85-90",
doi = "10.1016/j.nimb.2018.03.002"
}

Vujčić, I., Gavrilović, T. V., Sekulić, M., Mašić, S., Putić, S. S., Papan, J.,& Dramićanin, M.. (2018). Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422, 85-90.
https://doi.org/10.1016/j.nimb.2018.03.002

Vujčić I, Gavrilović TV, Sekulić M, Mašić S, Putić SS, Papan J, Dramićanin M. Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2018;422:85-90.
doi:10.1016/j.nimb.2018.03.002 .

Vujčić, Ivica, Gavrilović, Tamara V., Sekulić, Milica, Mašić, Slobodan, Putić, Slaviša S., Papan, Jelena, Dramićanin, Miroslav, "Gamma-radiation effects on luminescence properties of Eu 3+ activated LaPO 4 phosphor" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 422 (2018):85-90,
https://doi.org/10.1016/j.nimb.2018.03.002 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Glais, Estelle
AU  - Vuković, Katarina
AU  - Sekulić, Milica
AU  - Mašić, Slobodan
AU  - Chaneac, Corinne
AU  - Dramićanin, Miroslav
AU  - Viana, Bruno
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S0925346718307262
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7956
AB  - (Y1-xLnx)2O3 oxides (Ln = Y, Gd, Lu) doped with Eu3+ ions are widely used as commercialized scintillators in medical and industrial scanning applications, with high performance and attractive properties. In this work, effects of high-energy radiation on luminescence properties of (Y1-xGdx)2O3: Eu3+ powders with different particle sizes in the nanometric range are analyzed. Powders were prepared by polymer complex solution route, followed by annealing. Nanoparticles were obtained with an average size between 20 and 120 nm according to annealing conditions (time and temperature). Samples were exposed to gamma-irradiation (doses up to 4 MGy) on a commercial gamma-irradiation plant. The effect of irradiation on different nanoparticle size is followed by XRD, TEM and monitoring their luminescence properties. No change was observed in structure, morphology and steady-state emission. On the opposite after irradiation, excited-state lifetimes and quantum efficiency values are particle size dependent. © 2018 Elsevier B.V.
T2  - Optical Materials
T1  - Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes
VL  - 86
SP  - 582
EP  - 589
DO  - 10.1016/j.optmat.2018.10.049
ER  - 

@article{
author = "Vujčić, Ivica and Glais, Estelle and Vuković, Katarina and Sekulić, Milica and Mašić, Slobodan and Chaneac, Corinne and Dramićanin, Miroslav and Viana, Bruno",
year = "2018",
abstract = "(Y1-xLnx)2O3 oxides (Ln = Y, Gd, Lu) doped with Eu3+ ions are widely used as commercialized scintillators in medical and industrial scanning applications, with high performance and attractive properties. In this work, effects of high-energy radiation on luminescence properties of (Y1-xGdx)2O3: Eu3+ powders with different particle sizes in the nanometric range are analyzed. Powders were prepared by polymer complex solution route, followed by annealing. Nanoparticles were obtained with an average size between 20 and 120 nm according to annealing conditions (time and temperature). Samples were exposed to gamma-irradiation (doses up to 4 MGy) on a commercial gamma-irradiation plant. The effect of irradiation on different nanoparticle size is followed by XRD, TEM and monitoring their luminescence properties. No change was observed in structure, morphology and steady-state emission. On the opposite after irradiation, excited-state lifetimes and quantum efficiency values are particle size dependent. © 2018 Elsevier B.V.",
journal = "Optical Materials",
title = "Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes",
volume = "86",
pages = "582-589",
doi = "10.1016/j.optmat.2018.10.049"
}

Vujčić, I., Glais, E., Vuković, K., Sekulić, M., Mašić, S., Chaneac, C., Dramićanin, M.,& Viana, B.. (2018). Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes. in Optical Materials, 86, 582-589.
https://doi.org/10.1016/j.optmat.2018.10.049

Vujčić I, Glais E, Vuković K, Sekulić M, Mašić S, Chaneac C, Dramićanin M, Viana B. Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes. in Optical Materials. 2018;86:582-589.
doi:10.1016/j.optmat.2018.10.049 .

Vujčić, Ivica, Glais, Estelle, Vuković, Katarina, Sekulić, Milica, Mašić, Slobodan, Chaneac, Corinne, Dramićanin, Miroslav, Viana, Bruno, "Radiation effects, photoluminescence and radioluminescence of Eu-doped (Y0.7Gd0.3)2O3 nanoparticles with various sizes" in Optical Materials, 86 (2018):582-589,
https://doi.org/10.1016/j.optmat.2018.10.049 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Gavrilović, Tamara V.
AU  - Sekulić, Milica
AU  - Mašić, Slobodan
AU  - Milićević, Bojana R.
AU  - Dramićanin, Miroslav
AU  - Đorđević, Vesna R.
PY  - 2018
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7964
AB  - YPO4 phosphors doped with trivalent ion Pr3+ were prepared by sol–gel method and treated with different doses of gamma radiation, from 0.25 MGy to 4 MGy. Effects of radiation on morphology, structure and luminescent properties were analyzed. Also, the influence of radiation on the change in the color of the samples was examined. The color efficiency of powders was evaluated by colorimetric analysis (CIE and L * a * b system). It has been observed that powders change color under the influence of radiation, i.e. they pass from white to pinkish red. Also, it has been determined that the radiation affects morphology change, as the particle size increases with increasing of the radiation dose. With the increase in the radiation dose, the emission intensity of samples decreases. The structure remains almost unchanged after irradiation, and the intensity constantly decreases with increasing of dose. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.
T2  - Radiation Effects and Defects in Solids
T1  - Radiation effects on luminescent and structural properties of YPO4: Pr3+ nanophosphors
VL  - 173
IS  - 11-12
SP  - 1054
EP  - 1067
DO  - 10.1080/10420150.2018.1539722
ER  - 

@article{
author = "Vujčić, Ivica and Gavrilović, Tamara V. and Sekulić, Milica and Mašić, Slobodan and Milićević, Bojana R. and Dramićanin, Miroslav and Đorđević, Vesna R.",
year = "2018",
abstract = "YPO4 phosphors doped with trivalent ion Pr3+ were prepared by sol–gel method and treated with different doses of gamma radiation, from 0.25 MGy to 4 MGy. Effects of radiation on morphology, structure and luminescent properties were analyzed. Also, the influence of radiation on the change in the color of the samples was examined. The color efficiency of powders was evaluated by colorimetric analysis (CIE and L * a * b system). It has been observed that powders change color under the influence of radiation, i.e. they pass from white to pinkish red. Also, it has been determined that the radiation affects morphology change, as the particle size increases with increasing of the radiation dose. With the increase in the radiation dose, the emission intensity of samples decreases. The structure remains almost unchanged after irradiation, and the intensity constantly decreases with increasing of dose. © 2018, © 2018 Informa UK Limited, trading as Taylor & Francis Group.",
journal = "Radiation Effects and Defects in Solids",
title = "Radiation effects on luminescent and structural properties of YPO4: Pr3+ nanophosphors",
volume = "173",
number = "11-12",
pages = "1054-1067",
doi = "10.1080/10420150.2018.1539722"
}

Vujčić, I., Gavrilović, T. V., Sekulić, M., Mašić, S., Milićević, B. R., Dramićanin, M.,& Đorđević, V. R.. (2018). Radiation effects on luminescent and structural properties of YPO4: Pr3+ nanophosphors. in Radiation Effects and Defects in Solids, 173(11-12), 1054-1067.
https://doi.org/10.1080/10420150.2018.1539722

Vujčić I, Gavrilović TV, Sekulić M, Mašić S, Milićević BR, Dramićanin M, Đorđević VR. Radiation effects on luminescent and structural properties of YPO4: Pr3+ nanophosphors. in Radiation Effects and Defects in Solids. 2018;173(11-12):1054-1067.
doi:10.1080/10420150.2018.1539722 .

Vujčić, Ivica, Gavrilović, Tamara V., Sekulić, Milica, Mašić, Slobodan, Milićević, Bojana R., Dramićanin, Miroslav, Đorđević, Vesna R., "Radiation effects on luminescent and structural properties of YPO4: Pr3+ nanophosphors" in Radiation Effects and Defects in Solids, 173, no. 11-12 (2018):1054-1067,
https://doi.org/10.1080/10420150.2018.1539722 . .

TY  - JOUR
AU  - Vujčić, Ivica
AU  - Mašić, Slobodan
AU  - Spasevska, Hristina
AU  - Dramićanin, Miroslav
PY  - 2018
UR  - http://www.doiserbia.nb.rs/Article.aspx?ID=1451-39941800004V
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8121
AB  - Elhanol-chlorobenzene/oscillolilralor dosimetry system is widely used in controlling the irradiation process in gamma facilities. The elhanol-chlorobenzene dosimetry system provides a reliable means of measuring absorbed dose. It is based on a process of radiolytic formation of hydrochloric acid in aqueous elhanolic solutions of chlorobenzene by ionizing radiation. The irradiation temperature dependence of dosimeter response is a complex function of dose and temperature for each concentration of chlorobenzene. At different temperature the mobility of conducting species from hydrochloric acid is changed leading to dilTerenl oscillolilralor deflections during high-frequency conduclomelric readout. In this paper, we examined the influence of temperature on the calculation of the radiation dose. We showed that the temperature significantly influenced the measurement results, and that the calibration curve has to be formed at the irradiation temperature in order to obtain precise values of the absorbed dose. © 2018; Vinca Inst Nuclear Sci. All rights reserved.
T2  - Nuclear Technology and Radiation Protection
T1  - Accuracy in determining absorbed irradiation dose at different temperature measurements using ethanol chlorobenzene - oscillotitrator system
VL  - 33
IS  - 4
SP  - 363
EP  - 368
DO  - 10.2298/NTRP180316004V
ER  - 

@article{
author = "Vujčić, Ivica and Mašić, Slobodan and Spasevska, Hristina and Dramićanin, Miroslav",
year = "2018",
abstract = "Elhanol-chlorobenzene/oscillolilralor dosimetry system is widely used in controlling the irradiation process in gamma facilities. The elhanol-chlorobenzene dosimetry system provides a reliable means of measuring absorbed dose. It is based on a process of radiolytic formation of hydrochloric acid in aqueous elhanolic solutions of chlorobenzene by ionizing radiation. The irradiation temperature dependence of dosimeter response is a complex function of dose and temperature for each concentration of chlorobenzene. At different temperature the mobility of conducting species from hydrochloric acid is changed leading to dilTerenl oscillolilralor deflections during high-frequency conduclomelric readout. In this paper, we examined the influence of temperature on the calculation of the radiation dose. We showed that the temperature significantly influenced the measurement results, and that the calibration curve has to be formed at the irradiation temperature in order to obtain precise values of the absorbed dose. © 2018; Vinca Inst Nuclear Sci. All rights reserved.",
journal = "Nuclear Technology and Radiation Protection",
title = "Accuracy in determining absorbed irradiation dose at different temperature measurements using ethanol chlorobenzene - oscillotitrator system",
volume = "33",
number = "4",
pages = "363-368",
doi = "10.2298/NTRP180316004V"
}

Vujčić, I., Mašić, S., Spasevska, H.,& Dramićanin, M.. (2018). Accuracy in determining absorbed irradiation dose at different temperature measurements using ethanol chlorobenzene - oscillotitrator system. in Nuclear Technology and Radiation Protection, 33(4), 363-368.
https://doi.org/10.2298/NTRP180316004V

Vujčić I, Mašić S, Spasevska H, Dramićanin M. Accuracy in determining absorbed irradiation dose at different temperature measurements using ethanol chlorobenzene - oscillotitrator system. in Nuclear Technology and Radiation Protection. 2018;33(4):363-368.
doi:10.2298/NTRP180316004V .

Vujčić, Ivica, Mašić, Slobodan, Spasevska, Hristina, Dramićanin, Miroslav, "Accuracy in determining absorbed irradiation dose at different temperature measurements using ethanol chlorobenzene - oscillotitrator system" in Nuclear Technology and Radiation Protection, 33, no. 4 (2018):363-368,
https://doi.org/10.2298/NTRP180316004V . .