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Novel boron-rich aluminum nitride advanced ceramic materials

Zagorac, Dejan; Zagorac, Jelena; Fonović, Matej; Prikhna, Tatiana; Matović, Branko

TY  - JOUR
AU  - Zagorac, Dejan
AU  - Zagorac, Jelena
AU  - Fonović, Matej
AU  - Prikhna, Tatiana
AU  - Matović, Branko
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10399
AB  - Aluminum nitride (AlN) and boron nitride (BN) are well-known ceramic materials with numerous valuable properties, whereas recently there is a growing field of research on the AlN/BN advanced ceramic materials. Here, we present a study on boron-rich AlN, structural and electronic properties, and structure–property relationship. Several AlxB1−xN solid solutions (x = 1, .875, .75, and .625) have been investigated, and structure optimization has been performed for four different structure types: h-BN, wurtzite, sphalerite, and rock salt. First-principles calculations were performed using hybrid B3LYP functional. New modifications and compounds have been predicted as a function of boron concentration in AlN, and especially, interesting phase transitions were found at extreme pressure conditions. Electronic properties and band structures were computed, and the possibility for bandgap tuning has been discovered. The present study, and especially the structure–property relationship, gives new possibilities for bandgap engineering in boron-rich AlN electroceramic materials.
T2  - International Journal of Applied Ceramic Technology
T1  - Novel boron-rich aluminum nitride advanced ceramic materials
DO  - 10.1111/ijac.14152
ER  - 
@article{
author = "Zagorac, Dejan and Zagorac, Jelena and Fonović, Matej and Prikhna, Tatiana and Matović, Branko",
abstract = "Aluminum nitride (AlN) and boron nitride (BN) are well-known ceramic materials with numerous valuable properties, whereas recently there is a growing field of research on the AlN/BN advanced ceramic materials. Here, we present a study on boron-rich AlN, structural and electronic properties, and structure–property relationship. Several AlxB1−xN solid solutions (x = 1, .875, .75, and .625) have been investigated, and structure optimization has been performed for four different structure types: h-BN, wurtzite, sphalerite, and rock salt. First-principles calculations were performed using hybrid B3LYP functional. New modifications and compounds have been predicted as a function of boron concentration in AlN, and especially, interesting phase transitions were found at extreme pressure conditions. Electronic properties and band structures were computed, and the possibility for bandgap tuning has been discovered. The present study, and especially the structure–property relationship, gives new possibilities for bandgap engineering in boron-rich AlN electroceramic materials.",
journal = "International Journal of Applied Ceramic Technology",
title = "Novel boron-rich aluminum nitride advanced ceramic materials",
doi = "10.1111/ijac.14152"
}
Zagorac, D., Zagorac, J., Fonović, M., Prikhna, T.,& Matović, B..Novel boron-rich aluminum nitride advanced ceramic materials. in International Journal of Applied Ceramic Technology.
https://doi.org/10.1111/ijac.14152
Zagorac D, Zagorac J, Fonović M, Prikhna T, Matović B. Novel boron-rich aluminum nitride advanced ceramic materials. in International Journal of Applied Ceramic Technology..
doi:10.1111/ijac.14152 .
Zagorac, Dejan, Zagorac, Jelena, Fonović, Matej, Prikhna, Tatiana, Matović, Branko, "Novel boron-rich aluminum nitride advanced ceramic materials" in International Journal of Applied Ceramic Technology,
https://doi.org/10.1111/ijac.14152 . .

Hypothyroidism and Risk of Cardiovascular Disease

Gluvić, Zoran; Zafirović, Sonja; Obradović, Milan M.; Sudar-Milovanović, Emina; Rizzo, Manfredi; Isenović, Esma R.

TY  - JOUR
AU  - Gluvić, Zoran
AU  - Zafirović, Sonja
AU  - Obradović, Milan M.
AU  - Sudar-Milovanović, Emina
AU  - Rizzo, Manfredi
AU  - Isenović, Esma R.
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10409
AB  - Thyroid hormones (TH) have a significant impact on cellular oxidative metabolism. Besides that,they maintain vascular homeostasis by positive effects on endothelial and vascular smooth muscle cells. Subclinical(SCH) and clinical (CH) hypothyroidism influences target organs by changing their morphology andfunction and impaired blood and oxygen supply induced by accelerated atherosclerosis. The increased risk ofacceleration and extension of atherosclerosis in patients with SCH and CH could be explained by dyslipidemia,diastolic hypertension, increased arterial stiffness, endothelial dysfunction, and altered blood coagulation. Instabilityof atherosclerotic plaque in hypothyroidism could cause excessive activity of the elements of innateimmunity, which are characterized by the significant presence of macrophages in atherosclerotic plaques, increasednuclear factor kappa B (NFkB) expression, and elevated levels of tumor necrosis factor α (TNF-α) andmatrix metalloproteinase (MMP) 9, with reduced interstitial collagen; all of them together creates inflammationmilieu, resulting in plaque rupture. Optimal substitution by levothyroxine (LT4) restores biochemical euthyroidism.In postmenopausal women and elderly patients with hypothyroidism and associated vascularcomorbidity, excessive LT4 substitution could lead to atrial rhythm disorders and osteoporosis. Therefore, it isof interest to maintain thyroid-stimulating hormone (TSH) levels in the reference range, thus eliminating thedeleterious effects of lower or higher TSH levels on the cardiovascular system. This review summarizes the recentliterature on subclinical and clinical hypothyroidism and atherosclerotic cardiovascular disease and discussesthe effects of LT4 replacement therapy on restoring biochemical euthyroidism and atherosclerosis processes.
T2  - Current Pharmaceutical Design
T1  - Hypothyroidism and Risk of Cardiovascular Disease
VL  - 28
IS  - 25
SP  - 2065
EP  - 2072
DO  - 10.2174/1381612828666220620160516
ER  - 
@article{
author = "Gluvić, Zoran and Zafirović, Sonja and Obradović, Milan M. and Sudar-Milovanović, Emina and Rizzo, Manfredi and Isenović, Esma R.",
abstract = "Thyroid hormones (TH) have a significant impact on cellular oxidative metabolism. Besides that,they maintain vascular homeostasis by positive effects on endothelial and vascular smooth muscle cells. Subclinical(SCH) and clinical (CH) hypothyroidism influences target organs by changing their morphology andfunction and impaired blood and oxygen supply induced by accelerated atherosclerosis. The increased risk ofacceleration and extension of atherosclerosis in patients with SCH and CH could be explained by dyslipidemia,diastolic hypertension, increased arterial stiffness, endothelial dysfunction, and altered blood coagulation. Instabilityof atherosclerotic plaque in hypothyroidism could cause excessive activity of the elements of innateimmunity, which are characterized by the significant presence of macrophages in atherosclerotic plaques, increasednuclear factor kappa B (NFkB) expression, and elevated levels of tumor necrosis factor α (TNF-α) andmatrix metalloproteinase (MMP) 9, with reduced interstitial collagen; all of them together creates inflammationmilieu, resulting in plaque rupture. Optimal substitution by levothyroxine (LT4) restores biochemical euthyroidism.In postmenopausal women and elderly patients with hypothyroidism and associated vascularcomorbidity, excessive LT4 substitution could lead to atrial rhythm disorders and osteoporosis. Therefore, it isof interest to maintain thyroid-stimulating hormone (TSH) levels in the reference range, thus eliminating thedeleterious effects of lower or higher TSH levels on the cardiovascular system. This review summarizes the recentliterature on subclinical and clinical hypothyroidism and atherosclerotic cardiovascular disease and discussesthe effects of LT4 replacement therapy on restoring biochemical euthyroidism and atherosclerosis processes.",
journal = "Current Pharmaceutical Design",
title = "Hypothyroidism and Risk of Cardiovascular Disease",
volume = "28",
number = "25",
pages = "2065-2072",
doi = "10.2174/1381612828666220620160516"
}
Gluvić, Z., Zafirović, S., Obradović, M. M., Sudar-Milovanović, E., Rizzo, M.,& Isenović, E. R..Hypothyroidism and Risk of Cardiovascular Disease. in Current Pharmaceutical Design, 28(25), 2065-2072.
https://doi.org/10.2174/1381612828666220620160516
Gluvić Z, Zafirović S, Obradović MM, Sudar-Milovanović E, Rizzo M, Isenović ER. Hypothyroidism and Risk of Cardiovascular Disease. in Current Pharmaceutical Design.28(25):2065-2072.
doi:10.2174/1381612828666220620160516 .
Gluvić, Zoran, Zafirović, Sonja, Obradović, Milan M., Sudar-Milovanović, Emina, Rizzo, Manfredi, Isenović, Esma R., "Hypothyroidism and Risk of Cardiovascular Disease" in Current Pharmaceutical Design, 28, no. 25:2065-2072,
https://doi.org/10.2174/1381612828666220620160516 . .

Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate

Ognjanović, Miloš; Stanković, Dalibor M.; Jaćimović, Željko K.; Kosović-Perutović, Milica; Mariano, José F. M. L.; Krehula, Stjepko; Musić, Svetozar; Antić, Bratislav

TY  - JOUR
AU  - Ognjanović, Miloš
AU  - Stanković, Dalibor M.
AU  - Jaćimović, Željko K.
AU  - Kosović-Perutović, Milica
AU  - Mariano, José F. M. L.
AU  - Krehula, Stjepko
AU  - Musić, Svetozar
AU  - Antić, Bratislav
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10215
AB  - Nickel acetate tetrahydrate (NAT) sample series were used to modify screen-printed carbon electrodes (SPCE). The samples were hybrid Ni/NiO nanocomposites, where the NiO phase increased with an applied treatment temperature. Results of electrochemical measurements pointed that the Ni/NiO550/SPCE-modified electrode had the best analytical performance toward the detection of riboflavin (RF). The Ni/NiO550/SPCE-based sensor showed linear response with RF in the concentration range of 0.5–75 μM and 0.15 μM LOD in BRBS. Sensor offered fast response time, good repeatability, and selectivity with an RSD of 1.4 %. Our results show that the Ni:NiO nanocomposite ratio strongly influenced the electroanalytical performance of SPCE.
T2  - Electroanalysis
T1  - Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate
DO  - 10.1002/elan.202100602
ER  - 
@article{
author = "Ognjanović, Miloš and Stanković, Dalibor M. and Jaćimović, Željko K. and Kosović-Perutović, Milica and Mariano, José F. M. L. and Krehula, Stjepko and Musić, Svetozar and Antić, Bratislav",
abstract = "Nickel acetate tetrahydrate (NAT) sample series were used to modify screen-printed carbon electrodes (SPCE). The samples were hybrid Ni/NiO nanocomposites, where the NiO phase increased with an applied treatment temperature. Results of electrochemical measurements pointed that the Ni/NiO550/SPCE-modified electrode had the best analytical performance toward the detection of riboflavin (RF). The Ni/NiO550/SPCE-based sensor showed linear response with RF in the concentration range of 0.5–75 μM and 0.15 μM LOD in BRBS. Sensor offered fast response time, good repeatability, and selectivity with an RSD of 1.4 %. Our results show that the Ni:NiO nanocomposite ratio strongly influenced the electroanalytical performance of SPCE.",
journal = "Electroanalysis",
title = "Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate",
doi = "10.1002/elan.202100602"
}
Ognjanović, M., Stanković, D. M., Jaćimović, Ž. K., Kosović-Perutović, M., Mariano, J. F. M. L., Krehula, S., Musić, S.,& Antić, B..Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate. in Electroanalysis.
https://doi.org/10.1002/elan.202100602
Ognjanović M, Stanković DM, Jaćimović ŽK, Kosović-Perutović M, Mariano JFML, Krehula S, Musić S, Antić B. Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate. in Electroanalysis..
doi:10.1002/elan.202100602 .
Ognjanović, Miloš, Stanković, Dalibor M., Jaćimović, Željko K., Kosović-Perutović, Milica, Mariano, José F. M. L., Krehula, Stjepko, Musić, Svetozar, Antić, Bratislav, "Construction of Sensor for Submicromolar Detection of Riboflavin by Surface Modification of SPCE with Thermal Degradation Products of Nickel Acetate Tetrahydrate" in Electroanalysis,
https://doi.org/10.1002/elan.202100602 . .
1

Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle

Đurić, Tamara; Kuveljić, Jovana; Đorđević, Ana; Dekleva, Milica; Stanković, Goran; Stanković, Aleksandra; Živković, Maja

TY  - JOUR
AU  - Đurić, Tamara
AU  - Kuveljić, Jovana
AU  - Đorđević, Ana
AU  - Dekleva, Milica
AU  - Stanković, Goran
AU  - Stanković, Aleksandra
AU  - Živković, Maja
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10382
AB  - Background Myocardial infarction (MI) leads to ischemia and afterward to left ventricular (LV) remodeling. Matrix metalloproteinase−1 (MMP1) and −3 (MMP3) belong to the family of endopeptidases and together they can dissolve most of the components of the extracellular matrix. MMP1 and MMP3 variants have been investigated solely in association with ischemic heart disease and LV dysfunction, but not in haplotype. The aims of this study were to investigate the association of haplotypes inferred from MMP1 rs1799750 (−1607 1G/2G; NC_000011.9:g.102670497del) and MMP3 rs35068180 (−1612 5A/6A; NC_000011.9:g.102715952dup) with MI and their effect on the change in echocardiographic parameters of LV structure and function in patients within 6 months after MI. Methods The study included 325 patients with the first MI and 283 healthy controls. Gene variants were detected by PCR-RFLP method. Parameters of LV structure and function were assessed by conventional 2D echocardiography, 3–5 days and 6 months after the first MI, on a subgroup of 160 patients. Haplotype analysis was performed with Thesias software. Results Haplotypes 2G-5A and 1G-6A were significantly and independently associated with MI compared with the reference haplotype 2G-6A (adjusted, p = 0.009 and p = 0.026, respectively). After Bonferroni correction for multiple testing, MMP1 and MMP3 haplotypes lost their association with the change in LV long diameter and stroke volume within 6 months after MI. Conclusion MMP1 and MMP3 haplotypes are strongly associated with MI. Further studies are needed to validate this result and to examine their association with echocardiographic parameters of LV structure and function after MI.
T2  - Molecular Genetics & Genomic Medicine
T1  - Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle
SP  - e2022
DO  - 10.1002/mgg3.2022
ER  - 
@article{
author = "Đurić, Tamara and Kuveljić, Jovana and Đorđević, Ana and Dekleva, Milica and Stanković, Goran and Stanković, Aleksandra and Živković, Maja",
abstract = "Background Myocardial infarction (MI) leads to ischemia and afterward to left ventricular (LV) remodeling. Matrix metalloproteinase−1 (MMP1) and −3 (MMP3) belong to the family of endopeptidases and together they can dissolve most of the components of the extracellular matrix. MMP1 and MMP3 variants have been investigated solely in association with ischemic heart disease and LV dysfunction, but not in haplotype. The aims of this study were to investigate the association of haplotypes inferred from MMP1 rs1799750 (−1607 1G/2G; NC_000011.9:g.102670497del) and MMP3 rs35068180 (−1612 5A/6A; NC_000011.9:g.102715952dup) with MI and their effect on the change in echocardiographic parameters of LV structure and function in patients within 6 months after MI. Methods The study included 325 patients with the first MI and 283 healthy controls. Gene variants were detected by PCR-RFLP method. Parameters of LV structure and function were assessed by conventional 2D echocardiography, 3–5 days and 6 months after the first MI, on a subgroup of 160 patients. Haplotype analysis was performed with Thesias software. Results Haplotypes 2G-5A and 1G-6A were significantly and independently associated with MI compared with the reference haplotype 2G-6A (adjusted, p = 0.009 and p = 0.026, respectively). After Bonferroni correction for multiple testing, MMP1 and MMP3 haplotypes lost their association with the change in LV long diameter and stroke volume within 6 months after MI. Conclusion MMP1 and MMP3 haplotypes are strongly associated with MI. Further studies are needed to validate this result and to examine their association with echocardiographic parameters of LV structure and function after MI.",
journal = "Molecular Genetics & Genomic Medicine",
title = "Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle",
pages = "e2022",
doi = "10.1002/mgg3.2022"
}
Đurić, T., Kuveljić, J., Đorđević, A., Dekleva, M., Stanković, G., Stanković, A.,& Živković, M..Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle. in Molecular Genetics & Genomic Medicine, e2022.
https://doi.org/10.1002/mgg3.2022
Đurić T, Kuveljić J, Đorđević A, Dekleva M, Stanković G, Stanković A, Živković M. Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle. in Molecular Genetics & Genomic Medicine.:e2022.
doi:10.1002/mgg3.2022 .
Đurić, Tamara, Kuveljić, Jovana, Đorđević, Ana, Dekleva, Milica, Stanković, Goran, Stanković, Aleksandra, Živković, Maja, "Association of MMP1 and MMP3 haplotypes with myocardial infarction and echocardiographic parameters of the left ventricle" in Molecular Genetics & Genomic Medicine:e2022,
https://doi.org/10.1002/mgg3.2022 . .

The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement

Validžić, Ivana; Lojpur, Vesna; Mitrić, Miodrag

TY  - JOUR
AU  - Validžić, Ivana
AU  - Lojpur, Vesna
AU  - Mitrić, Miodrag
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10395
AB  - The operating characteristics of a commercial monocrystalline and amorphous Si-solar cell for outdoor and indoor applications with and without the use of the water flow lens (WFL) system are explored and reported. The cells are tested in indoor conditions with halogen and tungsten lamps, and additionally, in outdoor sun radiation. Changes in the spectra, investigation of the influence of higher and lower lighting, and indirect cooling of the solar cell are possibilities in the application of the used WFL system. After achieving the highest level of development and improvement for the Si-solar cell, as well as approaching theoretical maximum efficiency, it is obvious that efficiency gains can be made by better understanding additional light effects. Measurements made on monocrystalline Si-solar cells revealed that in the “focal point position” where intensity increases (above standard testing conditions [STC]), independently of indoor or outdoor lighting, huge improvements in ISC and VOC were observed. It was found that the ratios of the short-circuit current (ISC) and the input light energy (Pinput) are 5.2 and 24.8 for artificial light and 4.9 and 17.6 for outdoor light, without and with the use of the WFL system, respectively. The same trend after applying the WFL system was observed for the amorphous Si cell, except those oscillations were more pronounced at lower light intensities (far lower than STC), as expected. The ratios of ISC and Pinput are in the range of 5.1–5.3 and 10.5–26.5 without and with the use of the WFL system.
T2  - Environmental Progress & Sustainable Energy
T1  - The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement
SP  - e13967
DO  - 10.1002/ep.13967
ER  - 
@article{
author = "Validžić, Ivana and Lojpur, Vesna and Mitrić, Miodrag",
abstract = "The operating characteristics of a commercial monocrystalline and amorphous Si-solar cell for outdoor and indoor applications with and without the use of the water flow lens (WFL) system are explored and reported. The cells are tested in indoor conditions with halogen and tungsten lamps, and additionally, in outdoor sun radiation. Changes in the spectra, investigation of the influence of higher and lower lighting, and indirect cooling of the solar cell are possibilities in the application of the used WFL system. After achieving the highest level of development and improvement for the Si-solar cell, as well as approaching theoretical maximum efficiency, it is obvious that efficiency gains can be made by better understanding additional light effects. Measurements made on monocrystalline Si-solar cells revealed that in the “focal point position” where intensity increases (above standard testing conditions [STC]), independently of indoor or outdoor lighting, huge improvements in ISC and VOC were observed. It was found that the ratios of the short-circuit current (ISC) and the input light energy (Pinput) are 5.2 and 24.8 for artificial light and 4.9 and 17.6 for outdoor light, without and with the use of the WFL system, respectively. The same trend after applying the WFL system was observed for the amorphous Si cell, except those oscillations were more pronounced at lower light intensities (far lower than STC), as expected. The ratios of ISC and Pinput are in the range of 5.1–5.3 and 10.5–26.5 without and with the use of the WFL system.",
journal = "Environmental Progress & Sustainable Energy",
title = "The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement",
pages = "e13967",
doi = "10.1002/ep.13967"
}
Validžić, I., Lojpur, V.,& Mitrić, M..The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement. in Environmental Progress & Sustainable Energy, e13967.
https://doi.org/10.1002/ep.13967
Validžić I, Lojpur V, Mitrić M. The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement. in Environmental Progress & Sustainable Energy.:e13967.
doi:10.1002/ep.13967 .
Validžić, Ivana, Lojpur, Vesna, Mitrić, Miodrag, "The influence of the water flow lens system on the operating characteristics of monocrystalline and amorphous Si-solar cells for outdoor and indoor use: The photovoltaic improvement" in Environmental Progress & Sustainable Energy:e13967,
https://doi.org/10.1002/ep.13967 . .

Role of catalyst supports in biocatalysis

Manikandan, Soumya Koippully; Giannakoudakis, Dimitrios A.; Prekodravac, Jovana; Nair, Vaishakh; Colmenares, Juan Carlos

TY  - JOUR
AU  - Manikandan, Soumya Koippully
AU  - Giannakoudakis, Dimitrios A.
AU  - Prekodravac, Jovana
AU  - Nair, Vaishakh
AU  - Colmenares, Juan Carlos
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10383
AB  - Biocatalysis utilizes enzymes and microbial cells as catalysts for a wide range of applications in biotechnology. Immobilization of biocatalysts on various materials has several advantages, including the capacity for reuse, quick reaction termination, easy biocatalyst recovery and operational stability. The present article focuses on the use of material supports for developing immobilized biocatalysts in applications related to energy, environment and chemical synthesis. The work provides a comprehensive overview of a broad class of materials, including organic, inorganic and composites, that have been shown to be prosperous candidates to support the immobilization of enzymes and microbial cells. It also highlights the properties of nanomaterial support such as large surface area and comfort compartment for immobilization. The availability of different types of materials as catalyst support provides an opportunity to understand and develop efficient biocatalytic systems. The choice of selecting a catalyst support will mostly depend on the interaction of the material with the enzyme or microbial cell. Finally, potential challenges, future approaches in developing immobilized biocatalytic systems for various applications and novel material supports are suggested. © 2022 Society of Chemical Industry (SCI).
T2  - Journal of Chemical Technology & Biotechnology
T1  - Role of catalyst supports in biocatalysis
DO  - 10.1002/jctb.7177
ER  - 
@article{
author = "Manikandan, Soumya Koippully and Giannakoudakis, Dimitrios A. and Prekodravac, Jovana and Nair, Vaishakh and Colmenares, Juan Carlos",
abstract = "Biocatalysis utilizes enzymes and microbial cells as catalysts for a wide range of applications in biotechnology. Immobilization of biocatalysts on various materials has several advantages, including the capacity for reuse, quick reaction termination, easy biocatalyst recovery and operational stability. The present article focuses on the use of material supports for developing immobilized biocatalysts in applications related to energy, environment and chemical synthesis. The work provides a comprehensive overview of a broad class of materials, including organic, inorganic and composites, that have been shown to be prosperous candidates to support the immobilization of enzymes and microbial cells. It also highlights the properties of nanomaterial support such as large surface area and comfort compartment for immobilization. The availability of different types of materials as catalyst support provides an opportunity to understand and develop efficient biocatalytic systems. The choice of selecting a catalyst support will mostly depend on the interaction of the material with the enzyme or microbial cell. Finally, potential challenges, future approaches in developing immobilized biocatalytic systems for various applications and novel material supports are suggested. © 2022 Society of Chemical Industry (SCI).",
journal = "Journal of Chemical Technology & Biotechnology",
title = "Role of catalyst supports in biocatalysis",
doi = "10.1002/jctb.7177"
}
Manikandan, S. K., Giannakoudakis, D. A., Prekodravac, J., Nair, V.,& Colmenares, J. C..Role of catalyst supports in biocatalysis. in Journal of Chemical Technology & Biotechnology.
https://doi.org/10.1002/jctb.7177
Manikandan SK, Giannakoudakis DA, Prekodravac J, Nair V, Colmenares JC. Role of catalyst supports in biocatalysis. in Journal of Chemical Technology & Biotechnology..
doi:10.1002/jctb.7177 .
Manikandan, Soumya Koippully, Giannakoudakis, Dimitrios A., Prekodravac, Jovana, Nair, Vaishakh, Colmenares, Juan Carlos, "Role of catalyst supports in biocatalysis" in Journal of Chemical Technology & Biotechnology,
https://doi.org/10.1002/jctb.7177 . .

Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol

Kovačević, Nikola; Dapčević, Aleksandra; Ivković, Branka; Kachrimanis, Kyriakos; Mitrić, Miodrag; Ibrić, Svetlana; Medarević, Đorđe

TY  - JOUR
AU  - Kovačević, Nikola
AU  - Dapčević, Aleksandra
AU  - Ivković, Branka
AU  - Kachrimanis, Kyriakos
AU  - Mitrić, Miodrag
AU  - Ibrić, Svetlana
AU  - Medarević, Đorđe
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9932
AB  - In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.
T2  - International Journal of Pharmaceutics
T1  - Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol
VL  - 608
DO  - 10.1016/j.ijpharm.2021.121033
ER  - 
@article{
author = "Kovačević, Nikola and Dapčević, Aleksandra and Ivković, Branka and Kachrimanis, Kyriakos and Mitrić, Miodrag and Ibrić, Svetlana and Medarević, Đorđe",
abstract = "In this study, four low molecular weight (LMW) excipients, tryptophan (TRY), phenylalanine (PHE), lysine (LYS) and saccharin (SAC) were evaluated as co-formers to generate co-amorphous systems (CAMS) by ball milling with carvedilol (CRV). Mixtures of CRV and LMW excipient in 1:0.5, 1:1 and 1:2 drug:excipient molar ratios were ball milled and analysed by powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC), Fourier transform (FT-IR) infrared spectroscopy and dissolution testing. CAMS were formed by milling of a mixture of CRV with TRY in 1:2 M ratio and SAC in 1:1 M ratio, while amorphization of only CRV was achieved in other mixtures with SAC. In other samples containing TRY and PHE, milling resulted in partial amorphization, while LYS was the least suitable excipient for the amorphization of CRV. Unexpectedly, the highest supersaturation of CRV was achieved from samples containing CRV and LYS in 1:1 and 1:2 M ratios, despite the absence of a significant reduction in CRV crystallinity upon milling of these samples. Increase of hydrophobic surface area caused by milling of samples with TRY and PHE and agglomeration during dissolution testing of samples containing SAC are likely causes of poor dissolution performance of mixtures containing fully or partially amorphous CRV.",
journal = "International Journal of Pharmaceutics",
title = "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol",
volume = "608",
doi = "10.1016/j.ijpharm.2021.121033"
}
Kovačević, N., Dapčević, A., Ivković, B., Kachrimanis, K., Mitrić, M., Ibrić, S.,& Medarević, Đ..Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics, 608.
https://doi.org/10.1016/j.ijpharm.2021.121033
Kovačević N, Dapčević A, Ivković B, Kachrimanis K, Mitrić M, Ibrić S, Medarević Đ. Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol. in International Journal of Pharmaceutics.608.
doi:10.1016/j.ijpharm.2021.121033 .
Kovačević, Nikola, Dapčević, Aleksandra, Ivković, Branka, Kachrimanis, Kyriakos, Mitrić, Miodrag, Ibrić, Svetlana, Medarević, Đorđe, "Potential application of low molecular weight excipients for amorphization and dissolution enhancement of carvedilol" in International Journal of Pharmaceutics, 608,
https://doi.org/10.1016/j.ijpharm.2021.121033 . .
4
1
4

The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer

Marinković, Aleksandar; Vuksanović, Marija M.; Karić, Nataša; Đokić, Veljko; Popović, Mina; Jančić-Heinemann, Radmila; Tomić, Nataša

TY  - JOUR
AU  - Marinković, Aleksandar
AU  - Vuksanović, Marija M.
AU  - Karić, Nataša
AU  - Đokić, Veljko
AU  - Popović, Mina
AU  - Jančić-Heinemann, Radmila
AU  - Tomić, Nataša
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9761
AB  - As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.
T2  - Polymer Composites
T1  - The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer
DO  - 10.1002/pc.25903
ER  - 
@article{
author = "Marinković, Aleksandar and Vuksanović, Marija M. and Karić, Nataša and Đokić, Veljko and Popović, Mina and Jančić-Heinemann, Radmila and Tomić, Nataša",
abstract = "As a renewable resource, starch is considered to be fully biodegradable and nonpolluting to the environment but the hygroscopicity of starch is the main disadvantage for wider applicability in the production of a polymer-based material. Hydrophobically modified starch prepared using natural-based plasticizers/modifiers in a first step ([-]-diisopropyl D-tartrate [DiPT], ricinoleic acid [RA] and epoxidized soybean oil [ESO]), and maleated polypropylene (MAPP) in a second step contributed to better compatibility, and thus reinforcing of composites. Tailored processing conditions, structural/morphological properties, hydrophobicity, and water-resistance of the modified starch were established. In addition, the Charpy impact and tensile strength of composites, based on poly(ethylene-co-acrylic acid) (EAA) and modified starches, were determined. Increased tensile strength and Young modulus of the composite using starch-modified with DiPT-MAPP, that is, 3 and 83%, respectively, indicated the possible applicability of obtained materials.",
journal = "Polymer Composites",
title = "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer",
doi = "10.1002/pc.25903"
}
Marinković, A., Vuksanović, M. M., Karić, N., Đokić, V., Popović, M., Jančić-Heinemann, R.,& Tomić, N..The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites.
https://doi.org/10.1002/pc.25903
Marinković A, Vuksanović MM, Karić N, Đokić V, Popović M, Jančić-Heinemann R, Tomić N. The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer. in Polymer Composites..
doi:10.1002/pc.25903 .
Marinković, Aleksandar, Vuksanović, Marija M., Karić, Nataša, Đokić, Veljko, Popović, Mina, Jančić-Heinemann, Radmila, Tomić, Nataša, "The effect of natural modifiers for starch hydrophobization on performance of composite based on ethylene acrylic acid copolymer" in Polymer Composites,
https://doi.org/10.1002/pc.25903 . .
2
2
2

Denture composite reinforced with short polyethylene terephthalate fibers

Perišić, Srđan; Kareem Ali Alzaroug, Azdihar; Kalevski, Katarina; Vuksanović, Marija M.; Volkov-Husović, Tatjana; Radović, Ivana; Radojević, Vesna

TY  - JOUR
AU  - Perišić, Srđan
AU  - Kareem Ali Alzaroug, Azdihar
AU  - Kalevski, Katarina
AU  - Vuksanović, Marija M.
AU  - Volkov-Husović, Tatjana
AU  - Radović, Ivana
AU  - Radojević, Vesna
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10053
AB  - Polymer matrix composite materials have found application in dentistry because of good mechanical properties, aesthetic, easy processing, and possibilities of the repair. Acrylates are materials used to make and repair dentures. Reinforcements in the form of short glass or polymer fibers are added to improve the mechanical properties of dental polymers. In this study, the processing of composite material with a polymer matrix from commercial auto-polymerized acrylate Simgal, with reinforcement in the form of short poly(ethylene terephthalate) (PET) fibers was examined. Samples were processed in three series: pure Simgal, Simgal/PET 1 wt% and Simgal/PET 3 wt%. The influence of the reinforcement in the form of short PET fibers on the mechanical properties of composite materials was investigated. Strength and hardness were tested by impact testing and Vickers microhardness, and it was shown that there is an increase in absorbed energy and hardness. The modulus was reduced by the addition of PET fibers and by increasing the amount of fibers in the composite. The increase in the amount of PET fibers also resulted in a smaller loss of surface mass of the samples compared to the pure matrix by 63% and 93%, respectively. Cavitation test revealed better cavitation resistance of composites than the pure acrylate.
T2  - Polymer Composites
T1  - Denture composite reinforced with short polyethylene terephthalate fibers
DO  - 10.1002/pc.26397
ER  - 
@article{
author = "Perišić, Srđan and Kareem Ali Alzaroug, Azdihar and Kalevski, Katarina and Vuksanović, Marija M. and Volkov-Husović, Tatjana and Radović, Ivana and Radojević, Vesna",
abstract = "Polymer matrix composite materials have found application in dentistry because of good mechanical properties, aesthetic, easy processing, and possibilities of the repair. Acrylates are materials used to make and repair dentures. Reinforcements in the form of short glass or polymer fibers are added to improve the mechanical properties of dental polymers. In this study, the processing of composite material with a polymer matrix from commercial auto-polymerized acrylate Simgal, with reinforcement in the form of short poly(ethylene terephthalate) (PET) fibers was examined. Samples were processed in three series: pure Simgal, Simgal/PET 1 wt% and Simgal/PET 3 wt%. The influence of the reinforcement in the form of short PET fibers on the mechanical properties of composite materials was investigated. Strength and hardness were tested by impact testing and Vickers microhardness, and it was shown that there is an increase in absorbed energy and hardness. The modulus was reduced by the addition of PET fibers and by increasing the amount of fibers in the composite. The increase in the amount of PET fibers also resulted in a smaller loss of surface mass of the samples compared to the pure matrix by 63% and 93%, respectively. Cavitation test revealed better cavitation resistance of composites than the pure acrylate.",
journal = "Polymer Composites",
title = "Denture composite reinforced with short polyethylene terephthalate fibers",
doi = "10.1002/pc.26397"
}
Perišić, S., Kareem Ali Alzaroug, A., Kalevski, K., Vuksanović, M. M., Volkov-Husović, T., Radović, I.,& Radojević, V..Denture composite reinforced with short polyethylene terephthalate fibers. in Polymer Composites.
https://doi.org/10.1002/pc.26397
Perišić S, Kareem Ali Alzaroug A, Kalevski K, Vuksanović MM, Volkov-Husović T, Radović I, Radojević V. Denture composite reinforced with short polyethylene terephthalate fibers. in Polymer Composites..
doi:10.1002/pc.26397 .
Perišić, Srđan, Kareem Ali Alzaroug, Azdihar, Kalevski, Katarina, Vuksanović, Marija M., Volkov-Husović, Tatjana, Radović, Ivana, Radojević, Vesna, "Denture composite reinforced with short polyethylene terephthalate fibers" in Polymer Composites,
https://doi.org/10.1002/pc.26397 . .
1

Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease

Aranđelović, Jovana; Santrač, Anja; Batinić, Bojan; Todorović, Lidija; Stevanović, Vladimir; Tiruveedhula, Veera Venkata Naga Phani Babu; Sharmin, Dishary; Rashid, Farjana; Stanojević, Boban; Cook, James M.; Savić, Miroslav M.

TY  - JOUR
AU  - Aranđelović, Jovana
AU  - Santrač, Anja
AU  - Batinić, Bojan
AU  - Todorović, Lidija
AU  - Stevanović, Vladimir
AU  - Tiruveedhula, Veera Venkata Naga Phani Babu
AU  - Sharmin, Dishary
AU  - Rashid, Farjana
AU  - Stanojević, Boban
AU  - Cook, James M.
AU  - Savić, Miroslav M.
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10360
AB  - Aims GABAergic modulation involved in cognitive processing appears to be substantially changed in Alzheimer's disease (AD). In a widely used 5xFAD model of AD, we aimed to assess if negative and positive allosteric modulators of α5 GABAA receptors (NAM and PAM, respectively) would affect social interaction, social, object and spatial memory, and neuroinflammation. Methods After 10-day treatment with PAM, NAM, or solvent, 6-month-old transgenic and non-transgenic 5xFAD mice underwent testing in a behavioral battery. Gene expressions of IL-1β, IL-6, TNF-α, GFAP, and IBA-1 were determined in hippocampus and prefrontal cortex by qPCR. Results PAM treatment impaired spatial learning in transgenic females compared to solvent-treated transgenic females, and social recognition in transgenic and non-transgenic males. NAM treatment declined social interaction in transgenic and non-transgenic males, while had beneficial effect on cognitive flexibility in non-transgenic males compared to solvent-treated non-transgenic males. Transgenic animals have not fully displayed cognitive symptoms, but neuroinflammation was confirmed. NAM reduced proinflammatory gene expressions in transgenic females and astrogliosis in transgenic males compared to pathological controls. Conclusion PAM and NAM failed to exert favorable behavioral effects in transgenic animals. Suppression of neuroinflammation obtained with NAM calls for more studies with GABAergic ligands in amyloid beta- and/or tau-dependent models with prominent neuroinflammation.
T2  - CNS Neuroscience & Therapeutics
T2  - CNS Neuroscience & Therapeutics
T1  - Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease
DO  - 10.1111/cns.13914
ER  - 
@article{
author = "Aranđelović, Jovana and Santrač, Anja and Batinić, Bojan and Todorović, Lidija and Stevanović, Vladimir and Tiruveedhula, Veera Venkata Naga Phani Babu and Sharmin, Dishary and Rashid, Farjana and Stanojević, Boban and Cook, James M. and Savić, Miroslav M.",
abstract = "Aims GABAergic modulation involved in cognitive processing appears to be substantially changed in Alzheimer's disease (AD). In a widely used 5xFAD model of AD, we aimed to assess if negative and positive allosteric modulators of α5 GABAA receptors (NAM and PAM, respectively) would affect social interaction, social, object and spatial memory, and neuroinflammation. Methods After 10-day treatment with PAM, NAM, or solvent, 6-month-old transgenic and non-transgenic 5xFAD mice underwent testing in a behavioral battery. Gene expressions of IL-1β, IL-6, TNF-α, GFAP, and IBA-1 were determined in hippocampus and prefrontal cortex by qPCR. Results PAM treatment impaired spatial learning in transgenic females compared to solvent-treated transgenic females, and social recognition in transgenic and non-transgenic males. NAM treatment declined social interaction in transgenic and non-transgenic males, while had beneficial effect on cognitive flexibility in non-transgenic males compared to solvent-treated non-transgenic males. Transgenic animals have not fully displayed cognitive symptoms, but neuroinflammation was confirmed. NAM reduced proinflammatory gene expressions in transgenic females and astrogliosis in transgenic males compared to pathological controls. Conclusion PAM and NAM failed to exert favorable behavioral effects in transgenic animals. Suppression of neuroinflammation obtained with NAM calls for more studies with GABAergic ligands in amyloid beta- and/or tau-dependent models with prominent neuroinflammation.",
journal = "CNS Neuroscience & Therapeutics, CNS Neuroscience & Therapeutics",
title = "Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease",
doi = "10.1111/cns.13914"
}
Aranđelović, J., Santrač, A., Batinić, B., Todorović, L., Stevanović, V., Tiruveedhula, V. V. N. P. B., Sharmin, D., Rashid, F., Stanojević, B., Cook, J. M.,& Savić, M. M..Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease. in CNS Neuroscience & Therapeutics.
https://doi.org/10.1111/cns.13914
Aranđelović J, Santrač A, Batinić B, Todorović L, Stevanović V, Tiruveedhula VVNPB, Sharmin D, Rashid F, Stanojević B, Cook JM, Savić MM. Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease. in CNS Neuroscience & Therapeutics..
doi:10.1111/cns.13914 .
Aranđelović, Jovana, Santrač, Anja, Batinić, Bojan, Todorović, Lidija, Stevanović, Vladimir, Tiruveedhula, Veera Venkata Naga Phani Babu, Sharmin, Dishary, Rashid, Farjana, Stanojević, Boban, Cook, James M., Savić, Miroslav M., "Effects of α5 GABAA receptor modulation on social interaction, memory, and neuroinflammation in a mouse model of Alzheimer's disease" in CNS Neuroscience & Therapeutics,
https://doi.org/10.1111/cns.13914 . .
10

Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides

Batalovic, Katarina; Radaković, Jana; Paskaš Mamula, Bojana; Kuzmanović, Bojana; Medić-Ilić, Mirjana

TY  - JOUR
AU  - Batalovic, Katarina
AU  - Radaković, Jana
AU  - Paskaš Mamula, Bojana
AU  - Kuzmanović, Bojana
AU  - Medić-Ilić, Mirjana
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10348
AB  - Theoretical tools or structure-property relations that enable the prediction of metal hydrides are of enormous interest in developing new hydrogen storage materials. Density functional theory (DFT) is one such approach that provides accurate hydride formation energies, which, if complemented with vibrational zero-point energy and other contributions, provides accurate hydride formation enthalpies. However, this approach is time consuming and, therefore, often avoided, hindering the modeling of experimental behavior. The recent implementation of graph neural networks (GNN) in materials science enables fast prediction of crystal formation energy with a DFT accuracy. Starting from the MatErials Graph Network (MEGNet), transfer learning is applied to develop a model for predicting hydride formation enthalpy based on the crystal structure of the starting intermetallic. Excellent accuracy is achieved for Mg-containing alloys, allowing the screening of the Mg-Ni-M ternary intermetallics. In addition, data containing matching experimental properties and crystal structure of metal hydrides are provided, enabling future development.
T2  - Advanced Theory and Simulations
T1  - Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides
SP  - 2200293
DO  - 10.1002/adts.202200293
ER  - 
@article{
author = "Batalovic, Katarina and Radaković, Jana and Paskaš Mamula, Bojana and Kuzmanović, Bojana and Medić-Ilić, Mirjana",
abstract = "Theoretical tools or structure-property relations that enable the prediction of metal hydrides are of enormous interest in developing new hydrogen storage materials. Density functional theory (DFT) is one such approach that provides accurate hydride formation energies, which, if complemented with vibrational zero-point energy and other contributions, provides accurate hydride formation enthalpies. However, this approach is time consuming and, therefore, often avoided, hindering the modeling of experimental behavior. The recent implementation of graph neural networks (GNN) in materials science enables fast prediction of crystal formation energy with a DFT accuracy. Starting from the MatErials Graph Network (MEGNet), transfer learning is applied to develop a model for predicting hydride formation enthalpy based on the crystal structure of the starting intermetallic. Excellent accuracy is achieved for Mg-containing alloys, allowing the screening of the Mg-Ni-M ternary intermetallics. In addition, data containing matching experimental properties and crystal structure of metal hydrides are provided, enabling future development.",
journal = "Advanced Theory and Simulations",
title = "Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides",
pages = "2200293",
doi = "10.1002/adts.202200293"
}
Batalovic, K., Radaković, J., Paskaš Mamula, B., Kuzmanović, B.,& Medić-Ilić, M..Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides. in Advanced Theory and Simulations, 2200293.
https://doi.org/10.1002/adts.202200293
Batalovic K, Radaković J, Paskaš Mamula B, Kuzmanović B, Medić-Ilić M. Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides. in Advanced Theory and Simulations.:2200293.
doi:10.1002/adts.202200293 .
Batalovic, Katarina, Radaković, Jana, Paskaš Mamula, Bojana, Kuzmanović, Bojana, Medić-Ilić, Mirjana, "Predicting the Heat of Hydride Formation by Graph Neural Network - Exploring the Structure-Property Relation for Metal Hydrides" in Advanced Theory and Simulations:2200293,
https://doi.org/10.1002/adts.202200293 . .
1

Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer

Stojković, Goran; Jovanović, Ivan; Dimitrijević, Milovan; Jovanović, Jasmina; Tomanović, Nada; Stanković, Aleksandra; Arsović, Nenad; Boričić, Ivan; Zeljić, Katarina

TY  - JOUR
AU  - Stojković, Goran
AU  - Jovanović, Ivan
AU  - Dimitrijević, Milovan
AU  - Jovanović, Jasmina
AU  - Tomanović, Nada
AU  - Stanković, Aleksandra
AU  - Arsović, Nenad
AU  - Boričić, Ivan
AU  - Zeljić, Katarina
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10217
AB  - Objectives This study aimed to experimentally validate dysregulated expression of miRNA candidates selected through updated meta-analysis of most commonly deregulated miRNAs in oral cancer and to explore their diagnostic and prognostic potential. Materials and methods Five miRNAs (miR-31-3p, miR-135b-5p, miR-18a-5p, miR-30a-5p and miR-139-5p) from updated meta-signature were selected for validation by qRT-PCR method in 35 oral cancer clinical specimens and adjacent non-cancerous tissue. Results Updated meta-analysis has identified 13 most commonly deregulated miRNAs in oral cancer. Seven miRNAs were consistently up-regulated (miR-21-5p, miR-31-3p, miR-135b-5p, miR-31-5p, miR-424-5p, miR-18a-5p and miR-21-3p), while five were down-regulated (miR-139-5p, miR-30a-3p, miR-375-3p, miR-376c-3p and miR-30a-5p). Increased expression of miR-31-3p and miR-135b-5p, and decreased expression of miR-139-5p and miR-30a-5p were confirmed in oral cancer compared to adjacent non-cancerous tissue. A three miRNAs combination (miR-31-3p, miR-139-5p and miR-30a-5p) gave the most promising diagnostic potential for discriminating oral cancer from non-cancerous tissue (AUC: 0.780 [95% CI: 0.673–0.886], p < 0.0005, sensitivity 94.3%, specificity 51.4%). High expression of miR-135b-5p, miR-18a-5p and miR-30a-5p was associated with poor survival (p = 0.003, p = 0.048, p = 0.016 respectively). Conclusion miR-31-3p, miR-139-5p and miR-30a-5p panel was confirmed as a potential diagnostic biomarker when distinguishing oral cancer from non-cancerous tissue. miR-135b-5p, miR-18a-5p and miR-30a-5p might serve as potential biomarkers of poor survival of oral cancer patients.
T2  - Oral Diseases
T1  - Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer
DO  - 10.1111/odi.14185
ER  - 
@article{
author = "Stojković, Goran and Jovanović, Ivan and Dimitrijević, Milovan and Jovanović, Jasmina and Tomanović, Nada and Stanković, Aleksandra and Arsović, Nenad and Boričić, Ivan and Zeljić, Katarina",
abstract = "Objectives This study aimed to experimentally validate dysregulated expression of miRNA candidates selected through updated meta-analysis of most commonly deregulated miRNAs in oral cancer and to explore their diagnostic and prognostic potential. Materials and methods Five miRNAs (miR-31-3p, miR-135b-5p, miR-18a-5p, miR-30a-5p and miR-139-5p) from updated meta-signature were selected for validation by qRT-PCR method in 35 oral cancer clinical specimens and adjacent non-cancerous tissue. Results Updated meta-analysis has identified 13 most commonly deregulated miRNAs in oral cancer. Seven miRNAs were consistently up-regulated (miR-21-5p, miR-31-3p, miR-135b-5p, miR-31-5p, miR-424-5p, miR-18a-5p and miR-21-3p), while five were down-regulated (miR-139-5p, miR-30a-3p, miR-375-3p, miR-376c-3p and miR-30a-5p). Increased expression of miR-31-3p and miR-135b-5p, and decreased expression of miR-139-5p and miR-30a-5p were confirmed in oral cancer compared to adjacent non-cancerous tissue. A three miRNAs combination (miR-31-3p, miR-139-5p and miR-30a-5p) gave the most promising diagnostic potential for discriminating oral cancer from non-cancerous tissue (AUC: 0.780 [95% CI: 0.673–0.886], p < 0.0005, sensitivity 94.3%, specificity 51.4%). High expression of miR-135b-5p, miR-18a-5p and miR-30a-5p was associated with poor survival (p = 0.003, p = 0.048, p = 0.016 respectively). Conclusion miR-31-3p, miR-139-5p and miR-30a-5p panel was confirmed as a potential diagnostic biomarker when distinguishing oral cancer from non-cancerous tissue. miR-135b-5p, miR-18a-5p and miR-30a-5p might serve as potential biomarkers of poor survival of oral cancer patients.",
journal = "Oral Diseases",
title = "Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer",
doi = "10.1111/odi.14185"
}
Stojković, G., Jovanović, I., Dimitrijević, M., Jovanović, J., Tomanović, N., Stanković, A., Arsović, N., Boričić, I.,& Zeljić, K..Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer. in Oral Diseases.
https://doi.org/10.1111/odi.14185
Stojković G, Jovanović I, Dimitrijević M, Jovanović J, Tomanović N, Stanković A, Arsović N, Boričić I, Zeljić K. Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer. in Oral Diseases..
doi:10.1111/odi.14185 .
Stojković, Goran, Jovanović, Ivan, Dimitrijević, Milovan, Jovanović, Jasmina, Tomanović, Nada, Stanković, Aleksandra, Arsović, Nenad, Boričić, Ivan, Zeljić, Katarina, "Meta-signature guided investigation of miRNA candidates as potential biomarkers of oral cancer" in Oral Diseases,
https://doi.org/10.1111/odi.14185 . .

Recent advances on smart glycoconjugate vaccines in infections and cancer

Anderluh, Marko; Berti, Francesco; Bzducha-Wróbel, Anna; Chiodo, Fabrizio; Colombo, Cinzia; Compostella, Federica; Durlik, Katarzyna; Ferhati, Xhenti; Holmdahl, Rikard; Jovanović, Dragana J.; Kaca, Wieslaw; Lay, Luigi; Marinovic-Cincovic, Milena; Marradi, Marco; Ozil, Musa; Polito, Laura; Reina, Josè Juan; Reis, Celso A.; Sackstein, Robert; Silipo, Alba; Švajger, Urban; Vaněk, Ondřej; Yamamoto, Fumiichiro; Richichi, Barbara; van Vliet, Sandra J.

TY  - JOUR
AU  - Anderluh, Marko
AU  - Berti, Francesco
AU  - Bzducha-Wróbel, Anna
AU  - Chiodo, Fabrizio
AU  - Colombo, Cinzia
AU  - Compostella, Federica
AU  - Durlik, Katarzyna
AU  - Ferhati, Xhenti
AU  - Holmdahl, Rikard
AU  - Jovanović, Dragana J.
AU  - Kaca, Wieslaw
AU  - Lay, Luigi
AU  - Marinovic-Cincovic, Milena
AU  - Marradi, Marco
AU  - Ozil, Musa
AU  - Polito, Laura
AU  - Reina, Josè Juan
AU  - Reis, Celso A.
AU  - Sackstein, Robert
AU  - Silipo, Alba
AU  - Švajger, Urban
AU  - Vaněk, Ondřej
AU  - Yamamoto, Fumiichiro
AU  - Richichi, Barbara
AU  - van Vliet, Sandra J.
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9834
AB  - Vaccination is one of the greatest achievements in biomedical research preventing death and morbidity in many infectious diseases through the induction of pathogen-specific humoral and cellular immune responses. Currently, no effective vaccines are available for pathogens with a highly variable antigenic load, such as the human immunodeficiency virus or to induce cellular T-cell immunity in the fight against cancer. The recent SARS-CoV-2 outbreak has reinforced the relevance of designing smart therapeutic vaccine modalities to ensure public health. Indeed, academic and private companies have ongoing joint efforts to develop novel vaccine prototypes for this virus. Many pathogens are covered by a dense glycan-coat, which form an attractive target for vaccine development. Moreover, many tumor types are characterized by altered glycosylation profiles that are known as “tumor-associated carbohydrate antigens”. Unfortunately, glycans do not provoke a vigorous immune response and generally serve as T-cell-independent antigens, not eliciting protective immunoglobulin G responses nor inducing immunological memory. A close and continuous crosstalk between glycochemists and glycoimmunologists is essential for the successful development of efficient immune modulators. It is clear that this is a key point for the discovery of novel approaches, which could significantly improve our understanding of the immune system. In this review, we discuss the latest advancements in development of vaccines against glycan epitopes to gain selective immune responses and to provide an overview on the role of different immunogenic constructs in improving glycovaccine efficacy.
T2  - The FEBS Journal
T1  - Recent advances on smart glycoconjugate vaccines in infections and cancer
DO  - 10.1111/febs.15909
ER  - 
@article{
author = "Anderluh, Marko and Berti, Francesco and Bzducha-Wróbel, Anna and Chiodo, Fabrizio and Colombo, Cinzia and Compostella, Federica and Durlik, Katarzyna and Ferhati, Xhenti and Holmdahl, Rikard and Jovanović, Dragana J. and Kaca, Wieslaw and Lay, Luigi and Marinovic-Cincovic, Milena and Marradi, Marco and Ozil, Musa and Polito, Laura and Reina, Josè Juan and Reis, Celso A. and Sackstein, Robert and Silipo, Alba and Švajger, Urban and Vaněk, Ondřej and Yamamoto, Fumiichiro and Richichi, Barbara and van Vliet, Sandra J.",
abstract = "Vaccination is one of the greatest achievements in biomedical research preventing death and morbidity in many infectious diseases through the induction of pathogen-specific humoral and cellular immune responses. Currently, no effective vaccines are available for pathogens with a highly variable antigenic load, such as the human immunodeficiency virus or to induce cellular T-cell immunity in the fight against cancer. The recent SARS-CoV-2 outbreak has reinforced the relevance of designing smart therapeutic vaccine modalities to ensure public health. Indeed, academic and private companies have ongoing joint efforts to develop novel vaccine prototypes for this virus. Many pathogens are covered by a dense glycan-coat, which form an attractive target for vaccine development. Moreover, many tumor types are characterized by altered glycosylation profiles that are known as “tumor-associated carbohydrate antigens”. Unfortunately, glycans do not provoke a vigorous immune response and generally serve as T-cell-independent antigens, not eliciting protective immunoglobulin G responses nor inducing immunological memory. A close and continuous crosstalk between glycochemists and glycoimmunologists is essential for the successful development of efficient immune modulators. It is clear that this is a key point for the discovery of novel approaches, which could significantly improve our understanding of the immune system. In this review, we discuss the latest advancements in development of vaccines against glycan epitopes to gain selective immune responses and to provide an overview on the role of different immunogenic constructs in improving glycovaccine efficacy.",
journal = "The FEBS Journal",
title = "Recent advances on smart glycoconjugate vaccines in infections and cancer",
doi = "10.1111/febs.15909"
}
Anderluh, M., Berti, F., Bzducha-Wróbel, A., Chiodo, F., Colombo, C., Compostella, F., Durlik, K., Ferhati, X., Holmdahl, R., Jovanović, D. J., Kaca, W., Lay, L., Marinovic-Cincovic, M., Marradi, M., Ozil, M., Polito, L., Reina, J. J., Reis, C. A., Sackstein, R., Silipo, A., Švajger, U., Vaněk, O., Yamamoto, F., Richichi, B.,& van Vliet, S. J..Recent advances on smart glycoconjugate vaccines in infections and cancer. in The FEBS Journal.
https://doi.org/10.1111/febs.15909
Anderluh M, Berti F, Bzducha-Wróbel A, Chiodo F, Colombo C, Compostella F, Durlik K, Ferhati X, Holmdahl R, Jovanović DJ, Kaca W, Lay L, Marinovic-Cincovic M, Marradi M, Ozil M, Polito L, Reina JJ, Reis CA, Sackstein R, Silipo A, Švajger U, Vaněk O, Yamamoto F, Richichi B, van Vliet SJ. Recent advances on smart glycoconjugate vaccines in infections and cancer. in The FEBS Journal..
doi:10.1111/febs.15909 .
Anderluh, Marko, Berti, Francesco, Bzducha-Wróbel, Anna, Chiodo, Fabrizio, Colombo, Cinzia, Compostella, Federica, Durlik, Katarzyna, Ferhati, Xhenti, Holmdahl, Rikard, Jovanović, Dragana J., Kaca, Wieslaw, Lay, Luigi, Marinovic-Cincovic, Milena, Marradi, Marco, Ozil, Musa, Polito, Laura, Reina, Josè Juan, Reis, Celso A., Sackstein, Robert, Silipo, Alba, Švajger, Urban, Vaněk, Ondřej, Yamamoto, Fumiichiro, Richichi, Barbara, van Vliet, Sandra J., "Recent advances on smart glycoconjugate vaccines in infections and cancer" in The FEBS Journal,
https://doi.org/10.1111/febs.15909 . .
15
15
4
13

Non-coding RNA and cholesteatoma

Jovanović, Ivan G.; Živković, Maja; Ješić, Snežana; Stanković, Aleksandra

TY  - JOUR
AU  - Jovanović, Ivan G.
AU  - Živković, Maja
AU  - Ješić, Snežana
AU  - Stanković, Aleksandra
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10115
AB  - Objective Cholesteatoma is a challenging chronic pathology of the middle ear for which pharmacologic therapies have not been developed yet. Cholesteatoma occurrence depends on the interplay between genetic and environmental factors while master regulators orchestrating disease progression are still unknown. Therefore, in this review, we will discuss the diagnostic and therapeutic potential of non-coding RNAs (ncRNA) as a new class of regulatory molecules. Methods We have comprehensively reviewed all articles investigating ncRNAs, specifically micro RNAs (miRNAs) and long ncRNAs (lncRNA/circRNA) in cholesteatoma tissue. Results Candidate miRNA approaches indicated that miR-21 and let-7a are the major miRNAs involved in cholesteatoma growth, migration, proliferation, bone destruction, and apoptosis. Regulatory potential for the same biological processes was also observed for miR-203a. The NF-kB/miR-802/PTEN regulatory network was in relation to observed miR-21 activity in cholesteatoma as well. High throughput approaches revealed additional ncRNAs implicated in cholesteatoma pathology. Competitive endogenous RNA (ceRNA) analysis highlighted lncRNA/circRNA that could be “endogenous sponge” for miR-21 and let-7a based on the hypothesis that RNA transcripts can communicate with and regulate each other by using shared miRNA response elements. Conclusion In this review, we summarize the discoveries and role of ncRNA in major pathways in cholesteatoma and highlight the potential of miRNA-based therapeutics in the treatment of cholesteatoma. Level of Evidence: NA.
T2  - Laryngoscope Investigative Otolaryngology
T2  - Laryngoscope Investigative Otolaryngology
T1  - Non-coding RNA and cholesteatoma
DO  - 10.1002/lio2.728
ER  - 
@article{
author = "Jovanović, Ivan G. and Živković, Maja and Ješić, Snežana and Stanković, Aleksandra",
abstract = "Objective Cholesteatoma is a challenging chronic pathology of the middle ear for which pharmacologic therapies have not been developed yet. Cholesteatoma occurrence depends on the interplay between genetic and environmental factors while master regulators orchestrating disease progression are still unknown. Therefore, in this review, we will discuss the diagnostic and therapeutic potential of non-coding RNAs (ncRNA) as a new class of regulatory molecules. Methods We have comprehensively reviewed all articles investigating ncRNAs, specifically micro RNAs (miRNAs) and long ncRNAs (lncRNA/circRNA) in cholesteatoma tissue. Results Candidate miRNA approaches indicated that miR-21 and let-7a are the major miRNAs involved in cholesteatoma growth, migration, proliferation, bone destruction, and apoptosis. Regulatory potential for the same biological processes was also observed for miR-203a. The NF-kB/miR-802/PTEN regulatory network was in relation to observed miR-21 activity in cholesteatoma as well. High throughput approaches revealed additional ncRNAs implicated in cholesteatoma pathology. Competitive endogenous RNA (ceRNA) analysis highlighted lncRNA/circRNA that could be “endogenous sponge” for miR-21 and let-7a based on the hypothesis that RNA transcripts can communicate with and regulate each other by using shared miRNA response elements. Conclusion In this review, we summarize the discoveries and role of ncRNA in major pathways in cholesteatoma and highlight the potential of miRNA-based therapeutics in the treatment of cholesteatoma. Level of Evidence: NA.",
journal = "Laryngoscope Investigative Otolaryngology, Laryngoscope Investigative Otolaryngology",
title = "Non-coding RNA and cholesteatoma",
doi = "10.1002/lio2.728"
}
Jovanović, I. G., Živković, M., Ješić, S.,& Stanković, A..Non-coding RNA and cholesteatoma. in Laryngoscope Investigative Otolaryngology.
https://doi.org/10.1002/lio2.728
Jovanović IG, Živković M, Ješić S, Stanković A. Non-coding RNA and cholesteatoma. in Laryngoscope Investigative Otolaryngology..
doi:10.1002/lio2.728 .
Jovanović, Ivan G., Živković, Maja, Ješić, Snežana, Stanković, Aleksandra, "Non-coding RNA and cholesteatoma" in Laryngoscope Investigative Otolaryngology,
https://doi.org/10.1002/lio2.728 . .
1

Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study

Kepić, Dejan P.; Stefanović, Anđela M.; Budimir, Milica D.; Pavlović, Vladimir B.; Bonasera, Aurelio; Scopelliti, Michelangelo; Todorović-Marković, Biljana M.

(2023)

TY  - JOUR
AU  - Kepić, Dejan P.
AU  - Stefanović, Anđela M.
AU  - Budimir, Milica D.
AU  - Pavlović, Vladimir B.
AU  - Bonasera, Aurelio
AU  - Scopelliti, Michelangelo
AU  - Todorović-Marković, Biljana M.
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10426
AB  - Gamma irradiation provides an alternative pathway to conventional gold nanoparticle synthesis because it is simple, fast, and economical. Here, we employed gamma irradiation at low doses (1–20 kGy) to obtain gold nanoparticles (Au NPs) anchored onto graphene oxide (GO) sheets. GO was selected as a suitable platform for the nucleation and growth of Au NPs because of its large surface area and good dispersibility in water due to the presence of polar oxygen-containing functional groups in its structure. Gamma irradiation at all the applied doses led to the reduction of chloroauric acid and the formation of evenly distributed Au NPs at the GO surface, simultaneously causing the reduction of GO and partial restoration of the graphene structure. As-prepared Au NPs have predominately spheric shapes and the smallest nanoparticles were reported for the dose of 1 kGy. The increase in the irradiation dose caused either the growth of larger particles (5 and 10 kGy) or the broad distribution of particles’ sizes (20 kGy). All samples showed a temperature increase upon exposure to 800 nm laser and photothermal efficiency was the highest for the sample prepared at 20 kGy. © 2022 Elsevier Ltd
T2  - Radiation Physics and Chemistry
T1  - Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study
VL  - 202
DO  - 10.1016/j.radphyschem.2022.110545
ER  - 
@article{
author = "Kepić, Dejan P. and Stefanović, Anđela M. and Budimir, Milica D. and Pavlović, Vladimir B. and Bonasera, Aurelio and Scopelliti, Michelangelo and Todorović-Marković, Biljana M.",
year = "2023",
abstract = "Gamma irradiation provides an alternative pathway to conventional gold nanoparticle synthesis because it is simple, fast, and economical. Here, we employed gamma irradiation at low doses (1–20 kGy) to obtain gold nanoparticles (Au NPs) anchored onto graphene oxide (GO) sheets. GO was selected as a suitable platform for the nucleation and growth of Au NPs because of its large surface area and good dispersibility in water due to the presence of polar oxygen-containing functional groups in its structure. Gamma irradiation at all the applied doses led to the reduction of chloroauric acid and the formation of evenly distributed Au NPs at the GO surface, simultaneously causing the reduction of GO and partial restoration of the graphene structure. As-prepared Au NPs have predominately spheric shapes and the smallest nanoparticles were reported for the dose of 1 kGy. The increase in the irradiation dose caused either the growth of larger particles (5 and 10 kGy) or the broad distribution of particles’ sizes (20 kGy). All samples showed a temperature increase upon exposure to 800 nm laser and photothermal efficiency was the highest for the sample prepared at 20 kGy. © 2022 Elsevier Ltd",
journal = "Radiation Physics and Chemistry",
title = "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study",
volume = "202",
doi = "10.1016/j.radphyschem.2022.110545"
}
Kepić, D. P., Stefanović, A. M., Budimir, M. D., Pavlović, V. B., Bonasera, A., Scopelliti, M.,& Todorović-Marković, B. M.. (2023). Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry, 202.
https://doi.org/10.1016/j.radphyschem.2022.110545
Kepić DP, Stefanović AM, Budimir MD, Pavlović VB, Bonasera A, Scopelliti M, Todorović-Marković BM. Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study. in Radiation Physics and Chemistry. 2023;202.
doi:10.1016/j.radphyschem.2022.110545 .
Kepić, Dejan P., Stefanović, Anđela M., Budimir, Milica D., Pavlović, Vladimir B., Bonasera, Aurelio, Scopelliti, Michelangelo, Todorović-Marković, Biljana M., "Gamma rays induced synthesis of graphene oxide/gold nanoparticle composites: structural and photothermal study" in Radiation Physics and Chemistry, 202 (2023),
https://doi.org/10.1016/j.radphyschem.2022.110545 . .

La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells

Knežević, Sara; Ognjanović, Miloš; Stanković, Vesna; Zlatanova, Milena; Nešić, Andrijana; Gavrović-Jankulović, Marija; Stanković, Dalibor

(2022)

TY  - JOUR
AU  - Knežević, Sara
AU  - Ognjanović, Miloš
AU  - Stanković, Vesna
AU  - Zlatanova, Milena
AU  - Nešić, Andrijana
AU  - Gavrović-Jankulović, Marija
AU  - Stanković, Dalibor
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10430
AB  - This paper aims to develop an amperometric, non-enzymatic sensor for detecting and quantifying UA as an alert signal induced by allergens with protease activity in human cell lines (HEK293 and HeLa). Uric acid (UA) has been classified as a damage-associated molecular pattern (DAMP) molecule that serves a physiological purpose inside the cell, while outside the cell it can be an indicator of cell damage. Cell damage or stress can be caused by different health problems or by environmental irritants, such as allergens. We can act and prevent the events that generate stress by determining the extent to which cells are under stress. Amperometric calibration measurements were performed with a carbon paste electrode modified with La(OH)3@MWCNT, at the potential of 0.3 V. The calibration curve was constructed in a linear operating range from 0.67 μM to 121 μM UA. The proposed sensor displayed good reproducibility with an RSD of 3.65% calculated for five subsequent measurements, and a low detection limit of 64.28 nM, determined using the 3 S/m method. Interference studies and the real sample analysis of allergen-treated cell lines proved that the proposed sensing platform possesses excellent sensitivity, reproducibility, and stability. Therefore, it can potentially be used to evaluate stress factors in medical research and clinical practice.
T2  - Biosensors
T1  - La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells
VL  - 12
IS  - 9
SP  - 705
DO  - 10.3390/bios12090705
ER  - 
@article{
author = "Knežević, Sara and Ognjanović, Miloš and Stanković, Vesna and Zlatanova, Milena and Nešić, Andrijana and Gavrović-Jankulović, Marija and Stanković, Dalibor",
year = "2022",
abstract = "This paper aims to develop an amperometric, non-enzymatic sensor for detecting and quantifying UA as an alert signal induced by allergens with protease activity in human cell lines (HEK293 and HeLa). Uric acid (UA) has been classified as a damage-associated molecular pattern (DAMP) molecule that serves a physiological purpose inside the cell, while outside the cell it can be an indicator of cell damage. Cell damage or stress can be caused by different health problems or by environmental irritants, such as allergens. We can act and prevent the events that generate stress by determining the extent to which cells are under stress. Amperometric calibration measurements were performed with a carbon paste electrode modified with La(OH)3@MWCNT, at the potential of 0.3 V. The calibration curve was constructed in a linear operating range from 0.67 μM to 121 μM UA. The proposed sensor displayed good reproducibility with an RSD of 3.65% calculated for five subsequent measurements, and a low detection limit of 64.28 nM, determined using the 3 S/m method. Interference studies and the real sample analysis of allergen-treated cell lines proved that the proposed sensing platform possesses excellent sensitivity, reproducibility, and stability. Therefore, it can potentially be used to evaluate stress factors in medical research and clinical practice.",
journal = "Biosensors",
title = "La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells",
volume = "12",
number = "9",
pages = "705",
doi = "10.3390/bios12090705"
}
Knežević, S., Ognjanović, M., Stanković, V., Zlatanova, M., Nešić, A., Gavrović-Jankulović, M.,& Stanković, D.. (2022). La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells. in Biosensors, 12(9), 705.
https://doi.org/10.3390/bios12090705
Knežević S, Ognjanović M, Stanković V, Zlatanova M, Nešić A, Gavrović-Jankulović M, Stanković D. La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells. in Biosensors. 2022;12(9):705.
doi:10.3390/bios12090705 .
Knežević, Sara, Ognjanović, Miloš, Stanković, Vesna, Zlatanova, Milena, Nešić, Andrijana, Gavrović-Jankulović, Marija, Stanković, Dalibor, "La(OH)3 Multi-Walled Carbon Nanotube/Carbon Paste-Based Sensing Approach for the Detection of Uric Acid—A Product of Environmentally Stressed Cells" in Biosensors, 12, no. 9 (2022):705,
https://doi.org/10.3390/bios12090705 . .

Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals

Piotrowski, Wojciech M.; Kuchowicz, Maciej; Dramićanin, Miroslav; Marciniak, Lukasz

(2022)

TY  - JOUR
AU  - Piotrowski, Wojciech M.
AU  - Kuchowicz, Maciej
AU  - Dramićanin, Miroslav
AU  - Marciniak, Lukasz
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9890
AB  - Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.
T2  - Chemical Engineering Journal
T1  - Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals
VL  - 428
SP  - 131165
DO  - 10.1016/j.cej.2021.131165
ER  - 
@article{
author = "Piotrowski, Wojciech M. and Kuchowicz, Maciej and Dramićanin, Miroslav and Marciniak, Lukasz",
year = "2022",
abstract = "Herein, we show that the substitution of Sr2+ by trivalent lanthanide ions (Lu3+, La3+, Tb3+) in SrTiO3 nanocrystals stabilizes and enhances Ti3+ near-infrared emission (around 800 nm). This emission occurs from the 6-fold coordinated Ti3+ luminescent centers that appear in the vacancy–Ti3+–O form after lanthanide doping into the Sr2+ site. The strong dependence of the Ti3+ emission on temperature provided means for the tailored chemical engineering of luminescent nanonthermometers able to read the temperature in three ways: from the changes in Ti3+ emission intensity, excited-state lifetime, and from the ratio of Tb3+ and Ti3+ emission intensities. We demonstrated the unprecedented temperature sensitivity of the lifetime-based luminescent thermometer (8.83% K−1) with SrTiO3:Tb3+, along with exceptional repeatability in measurements.",
journal = "Chemical Engineering Journal",
title = "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals",
volume = "428",
pages = "131165",
doi = "10.1016/j.cej.2021.131165"
}
Piotrowski, W. M., Kuchowicz, M., Dramićanin, M.,& Marciniak, L.. (2022). Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal, 428, 131165.
https://doi.org/10.1016/j.cej.2021.131165
Piotrowski WM, Kuchowicz M, Dramićanin M, Marciniak L. Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals. in Chemical Engineering Journal. 2022;428:131165.
doi:10.1016/j.cej.2021.131165 .
Piotrowski, Wojciech M., Kuchowicz, Maciej, Dramićanin, Miroslav, Marciniak, Lukasz, "Lanthanide dopant stabilized Ti3+ state and supersensitive Ti3+ -based multiparametric luminescent thermometer in SrTiO3:Ln3+ (Ln3+ = Lu3+, La3+, Tb3+) nanocrystals" in Chemical Engineering Journal, 428 (2022):131165,
https://doi.org/10.1016/j.cej.2021.131165 . .
3
13
2
10

Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition

Marciniak, Lukasz; Piotrowski, Wojciech M.; Szalkowski, Marcin; Kinzhybalo, Vasyl V.; Drozd, Marek; Dramićanin, Miroslav; Bednarkiewicz, Artur

(2022)

TY  - JOUR
AU  - Marciniak, Lukasz
AU  - Piotrowski, Wojciech M.
AU  - Szalkowski, Marcin
AU  - Kinzhybalo, Vasyl V.
AU  - Drozd, Marek
AU  - Dramićanin, Miroslav
AU  - Bednarkiewicz, Artur
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9912
AB  - Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.
T2  - Chemical Engineering Journal
T1  - Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition
VL  - 427
SP  - 131941
DO  - 10.1016/j.cej.2021.131941
ER  - 
@article{
author = "Marciniak, Lukasz and Piotrowski, Wojciech M. and Szalkowski, Marcin and Kinzhybalo, Vasyl V. and Drozd, Marek and Dramićanin, Miroslav and Bednarkiewicz, Artur",
year = "2022",
abstract = "Currently available temperature measurements or imaging at nano-micro scale are limited to fluorescent molecules and luminescent nanocrystals, whose spectral properties respond to temperature variation. The principle of operation of these conventional temperature probes is typically related to temperature induced multiphonon quenching or temperature dependent energy transfers, therefore, above 12%/K sensitivity and high thermal resolution remain a serious challenge. Here we demonstrate a novel class of highly sensitive thermographic phosphors operating in room temperature range with sub-kelvin thermal resolution, whose temperature readings are reproducible, luminescence is photostable and brightness is not compromised by thermal quenching. Corroborated with phase transition structural characterization and high spatio-temporal temperature imaging, we demonstrated that optically active europium ions are highly and smoothly susceptible to monoclinic to tetragonal phase transition in nanocrystalline (54 ± 14 nm) LiYO2 host, which is evidenced by changed number and the splitting of Stark components as well as by smooth variation of contribution between magnetic and electric dipole transitions. Further, reducing the size of phosphor from bulk to nanocrystalline matrix, shifted the phase transition temperature from 100 °C down to room temperature. These findings provide insights into the mechanism underlaying phase transition based luminescence nanothermometry and motivate future research toward new, highly sensitive, high temporal and spatial resolution nano-thermometers aiming at precise studying heat generation or diffusion in numerous biological and technology applications.",
journal = "Chemical Engineering Journal",
title = "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition",
volume = "427",
pages = "131941",
doi = "10.1016/j.cej.2021.131941"
}
Marciniak, L., Piotrowski, W. M., Szalkowski, M., Kinzhybalo, V. V., Drozd, M., Dramićanin, M.,& Bednarkiewicz, A.. (2022). Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal, 427, 131941.
https://doi.org/10.1016/j.cej.2021.131941
Marciniak L, Piotrowski WM, Szalkowski M, Kinzhybalo VV, Drozd M, Dramićanin M, Bednarkiewicz A. Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition. in Chemical Engineering Journal. 2022;427:131941.
doi:10.1016/j.cej.2021.131941 .
Marciniak, Lukasz, Piotrowski, Wojciech M., Szalkowski, Marcin, Kinzhybalo, Vasyl V., Drozd, Marek, Dramićanin, Miroslav, Bednarkiewicz, Artur, "Highly sensitive luminescence nanothermometry and thermal imaging facilitated by phase transition" in Chemical Engineering Journal, 427 (2022):131941,
https://doi.org/10.1016/j.cej.2021.131941 . .
10
6
8

Temperature dependence of red emission in YPO4:Pr3+ nanopowders

Kahouadji, Badis; Guerbous, Lakhdar; Jovanović, Dragana J.; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Kahouadji, Badis
AU  - Guerbous, Lakhdar
AU  - Jovanović, Dragana J.
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9954
AB  - In order to compare spectroscopic properties between nanosized and that in single crystal form of YPO4:Pr3+, temperature-dependence of the red emission from 3P0 → 3H4 and 1D2 → 3H4 transitions of YPO4:0.1 at. % Pr3+ nanopowders has been investigated in details. The emission spectra of the sample in size of 20 nm, under selective excitation at 3P2, measured at different temperatures, T = 10, 100, 200 and 300 K have been recorded. The variation of emission intensity of each 3P0 → 3H4 and 1D2 → 3H4 against temperature has been investigated. Several spectral lines constitute 1D2 → 3H4 emission, assigned to transitions between 1D2 and 3H4 Stark levels are observed with no noticeable shifts between them and those observed at the single crystal. It is found that 1D2 → 3H4 emission intensity dominates that of 3P0 → 3H4 transition, pointing out the high efficiency of the multiphonon relaxation (MPR) process from 3P0 to 1D2. Fitting the temperature dependence of 3P0 → 3H4 emission intensity permits to estimate the phonons and their energies involved in non-radiatively transition between 3P0 and 1D2 levels, which are found different from single crystal. Also, fitting the multiphonon relaxation (MPR) rates against temperature, extracted from the measured 1D2 lifetime gives information that seven phonons can be involved to bridge the gap between 1D2 and 1G4. Furthermore, the possibility to use the YPO4: 0.1 at. % Pr3+ in the nano-thermometry application in temperature range T = 10–300 K was investigated.
T2  - Journal of Luminescence
T1  - Temperature dependence of red emission in YPO4:Pr3+ nanopowders
VL  - 241
SP  - 118499
DO  - 10.1016/j.jlumin.2021.118499
ER  - 
@article{
author = "Kahouadji, Badis and Guerbous, Lakhdar and Jovanović, Dragana J. and Dramićanin, Miroslav",
year = "2022",
abstract = "In order to compare spectroscopic properties between nanosized and that in single crystal form of YPO4:Pr3+, temperature-dependence of the red emission from 3P0 → 3H4 and 1D2 → 3H4 transitions of YPO4:0.1 at. % Pr3+ nanopowders has been investigated in details. The emission spectra of the sample in size of 20 nm, under selective excitation at 3P2, measured at different temperatures, T = 10, 100, 200 and 300 K have been recorded. The variation of emission intensity of each 3P0 → 3H4 and 1D2 → 3H4 against temperature has been investigated. Several spectral lines constitute 1D2 → 3H4 emission, assigned to transitions between 1D2 and 3H4 Stark levels are observed with no noticeable shifts between them and those observed at the single crystal. It is found that 1D2 → 3H4 emission intensity dominates that of 3P0 → 3H4 transition, pointing out the high efficiency of the multiphonon relaxation (MPR) process from 3P0 to 1D2. Fitting the temperature dependence of 3P0 → 3H4 emission intensity permits to estimate the phonons and their energies involved in non-radiatively transition between 3P0 and 1D2 levels, which are found different from single crystal. Also, fitting the multiphonon relaxation (MPR) rates against temperature, extracted from the measured 1D2 lifetime gives information that seven phonons can be involved to bridge the gap between 1D2 and 1G4. Furthermore, the possibility to use the YPO4: 0.1 at. % Pr3+ in the nano-thermometry application in temperature range T = 10–300 K was investigated.",
journal = "Journal of Luminescence",
title = "Temperature dependence of red emission in YPO4:Pr3+ nanopowders",
volume = "241",
pages = "118499",
doi = "10.1016/j.jlumin.2021.118499"
}
Kahouadji, B., Guerbous, L., Jovanović, D. J.,& Dramićanin, M.. (2022). Temperature dependence of red emission in YPO4:Pr3+ nanopowders. in Journal of Luminescence, 241, 118499.
https://doi.org/10.1016/j.jlumin.2021.118499
Kahouadji B, Guerbous L, Jovanović DJ, Dramićanin M. Temperature dependence of red emission in YPO4:Pr3+ nanopowders. in Journal of Luminescence. 2022;241:118499.
doi:10.1016/j.jlumin.2021.118499 .
Kahouadji, Badis, Guerbous, Lakhdar, Jovanović, Dragana J., Dramićanin, Miroslav, "Temperature dependence of red emission in YPO4:Pr3+ nanopowders" in Journal of Luminescence, 241 (2022):118499,
https://doi.org/10.1016/j.jlumin.2021.118499 . .
3
2

Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals

Periša, Jovana; Đorđević, Vesna R.; Ristić, Zoran; Medić, Mina; Kuzman, Sanja; Antić, Željka; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Periša, Jovana
AU  - Đorđević, Vesna R.
AU  - Ristić, Zoran
AU  - Medić, Mina
AU  - Kuzman, Sanja
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10104
AB  - Potential of Eu3+, Mn4+ co-doped YAG for dual-activated luminescence intensity ratio thermometry is investigated. The samples were prepared by modified Pechini method and cubic structure confirmed by X-ray diffraction with average crystallite size of ∼ 20 nm. Scanning electron microscopy revealed different sized chunks composed of ellipsoidal-shaped particles bellow 50 nm. Temperature-dependent photoluminescent emission spectra (λex = 465 nm, 98–473 K temperature range) of co-doped samples consist of emission bands in the red spectral region originating from both Eu3+and Mn4+transitions. Concentration of Mn4+ and Eu3+ is optimized to be 0.5mol% and 3mol%. Observed suppression of Eu3+ emission indicate an efficient (∼97%) energy transfer from Eu3+ to Mn4+. Using luminescence intensity ratio as the ratio between the integrated intensities of the Eu3+ 5D0→7F1 transition and the Mn4+ 2E→4A2 manyfold, maximal absolute and relative sensitivities of SAmax = 19.2mK−1 at 351 K and SRmax = 5.06%K − 1 at 321 K were calculated.
T2  - Materials Research Bulletin
T1  - Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals
VL  - 149
SP  - 111708
DO  - 10.1016/j.materresbull.2021.111708
ER  - 
@article{
author = "Periša, Jovana and Đorđević, Vesna R. and Ristić, Zoran and Medić, Mina and Kuzman, Sanja and Antić, Željka and Dramićanin, Miroslav",
year = "2022",
abstract = "Potential of Eu3+, Mn4+ co-doped YAG for dual-activated luminescence intensity ratio thermometry is investigated. The samples were prepared by modified Pechini method and cubic structure confirmed by X-ray diffraction with average crystallite size of ∼ 20 nm. Scanning electron microscopy revealed different sized chunks composed of ellipsoidal-shaped particles bellow 50 nm. Temperature-dependent photoluminescent emission spectra (λex = 465 nm, 98–473 K temperature range) of co-doped samples consist of emission bands in the red spectral region originating from both Eu3+and Mn4+transitions. Concentration of Mn4+ and Eu3+ is optimized to be 0.5mol% and 3mol%. Observed suppression of Eu3+ emission indicate an efficient (∼97%) energy transfer from Eu3+ to Mn4+. Using luminescence intensity ratio as the ratio between the integrated intensities of the Eu3+ 5D0→7F1 transition and the Mn4+ 2E→4A2 manyfold, maximal absolute and relative sensitivities of SAmax = 19.2mK−1 at 351 K and SRmax = 5.06%K − 1 at 321 K were calculated.",
journal = "Materials Research Bulletin",
title = "Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals",
volume = "149",
pages = "111708",
doi = "10.1016/j.materresbull.2021.111708"
}
Periša, J., Đorđević, V. R., Ristić, Z., Medić, M., Kuzman, S., Antić, Ž.,& Dramićanin, M.. (2022). Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals. in Materials Research Bulletin, 149, 111708.
https://doi.org/10.1016/j.materresbull.2021.111708
Periša J, Đorđević VR, Ristić Z, Medić M, Kuzman S, Antić Ž, Dramićanin M. Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals. in Materials Research Bulletin. 2022;149:111708.
doi:10.1016/j.materresbull.2021.111708 .
Periša, Jovana, Đorđević, Vesna R., Ristić, Zoran, Medić, Mina, Kuzman, Sanja, Antić, Željka, Dramićanin, Miroslav, "Highly sensitive temperature reading from intensity ratio of Eu3+ And Mn4+emissions in Y3Al5O12 nanocrystals" in Materials Research Bulletin, 149 (2022):111708,
https://doi.org/10.1016/j.materresbull.2021.111708 . .
1
3
2

Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing

Ćirić, Aleksandar; Stojadinović, Stevan; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Stojadinović, Stevan
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10105
AB  - 15 µm thick Ti-Sapphire coatings were synthesised at room temperature by the plasma electrolytic oxidation (PEO) method for 20 min from the pure aluminium substrate and with the addition of the TiO2 particles in various concentrations in the supporting electrolyte. The coatings are featured by microscopic pores typical for PEO surfaces. The dominant is the alpha phase of alumina with the small presence of the gamma phase. The estimated average crystalline size is 41 nm. Ti is uniformly distributed in these polycrystalline ceramic coatings and does not affect morphology or phase content. Photoluminescence of PEO-created coatings shows typical absorption, excitation, and emission features of Ti-Sapphire with two broad-overlapping excitation bands in the green and blue spectral region due to the Jahn-Teller splitting of the 2Eg level and the Stokes shifted emission centred at 720 nm. 2Eg energy state splitting is equal to 2195 cm−1 and 10 Dq ≈ 19,300 cm−1. The highest emission intensity was observed in the coating prepared with the 0.1 g/L TiO2 powder concentration, i.e. 0.32 at% of incorporated Ti3+. Emission spectra recorded at temperatures ranging from 100 K to 300 K revealed the Mott-Seitz temperature dependence of emission intensity with the 1180 cm−1 activation energy. The fit to the McCumber-Sturge relation gave, for the first time, the value of Debye temperature of 594 K of Al2O3:Ti. Non-contact, luminescence temperature sensing from the temperature-induced changes in the emission bandwidth gave a high sensitivity of 3.2 cm−1 K−1 and 0.19 K temperature resolution. The PEO created Ti-sapphire coatings are a promising multifunctional barrier level – optical temperature sensor material for applications in harsh environments or on large aluminium surfaces. It shows potential to be used as a planar waveguide Ti-Sapphire laser active medium.
T2  - Journal of Alloys and Compounds
T1  - Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing
VL  - 900
SP  - 163544
DO  - 10.1016/j.jallcom.2021.163544
ER  - 
@article{
author = "Ćirić, Aleksandar and Stojadinović, Stevan and Dramićanin, Miroslav",
year = "2022",
abstract = "15 µm thick Ti-Sapphire coatings were synthesised at room temperature by the plasma electrolytic oxidation (PEO) method for 20 min from the pure aluminium substrate and with the addition of the TiO2 particles in various concentrations in the supporting electrolyte. The coatings are featured by microscopic pores typical for PEO surfaces. The dominant is the alpha phase of alumina with the small presence of the gamma phase. The estimated average crystalline size is 41 nm. Ti is uniformly distributed in these polycrystalline ceramic coatings and does not affect morphology or phase content. Photoluminescence of PEO-created coatings shows typical absorption, excitation, and emission features of Ti-Sapphire with two broad-overlapping excitation bands in the green and blue spectral region due to the Jahn-Teller splitting of the 2Eg level and the Stokes shifted emission centred at 720 nm. 2Eg energy state splitting is equal to 2195 cm−1 and 10 Dq ≈ 19,300 cm−1. The highest emission intensity was observed in the coating prepared with the 0.1 g/L TiO2 powder concentration, i.e. 0.32 at% of incorporated Ti3+. Emission spectra recorded at temperatures ranging from 100 K to 300 K revealed the Mott-Seitz temperature dependence of emission intensity with the 1180 cm−1 activation energy. The fit to the McCumber-Sturge relation gave, for the first time, the value of Debye temperature of 594 K of Al2O3:Ti. Non-contact, luminescence temperature sensing from the temperature-induced changes in the emission bandwidth gave a high sensitivity of 3.2 cm−1 K−1 and 0.19 K temperature resolution. The PEO created Ti-sapphire coatings are a promising multifunctional barrier level – optical temperature sensor material for applications in harsh environments or on large aluminium surfaces. It shows potential to be used as a planar waveguide Ti-Sapphire laser active medium.",
journal = "Journal of Alloys and Compounds",
title = "Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing",
volume = "900",
pages = "163544",
doi = "10.1016/j.jallcom.2021.163544"
}
Ćirić, A., Stojadinović, S.,& Dramićanin, M.. (2022). Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing. in Journal of Alloys and Compounds, 900, 163544.
https://doi.org/10.1016/j.jallcom.2021.163544
Ćirić A, Stojadinović S, Dramićanin M. Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing. in Journal of Alloys and Compounds. 2022;900:163544.
doi:10.1016/j.jallcom.2021.163544 .
Ćirić, Aleksandar, Stojadinović, Stevan, Dramićanin, Miroslav, "Luminescence of Ti-Sapphire coatings prepared by plasma electrolytic oxidation and their application in temperature sensing" in Journal of Alloys and Compounds, 900 (2022):163544,
https://doi.org/10.1016/j.jallcom.2021.163544 . .
1
1

Self‑referenced method for the Judd–Ofelt parametrisation of the ­Eu3+ excitation spectrum

Ćirić, Aleksandar; Marciniak, Lukasz; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Marciniak, Lukasz
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10133
AB  - Judd–Ofelt theory is a cornerstone of lanthanides’ spectroscopy given that it describes 4fn emissions and absorptions of lanthanide ions using only three intensity parameters. A self-referenced technique for computing Judd–Ofelt intensity parameters from the excitation spectra of Eu3+-activated luminescent materials is presented in this study along with an explanation of the parametrisation procedure and free user-friendly web application. It uses the integrated intensities of the 7F0 → 5D2, 7F0 → 5D4, and 7F0 → 5L6 transitions in the excitation spectrum for estimation and the integrated intensity of the 7F0 → 5D1 magnetic dipole transition for calibration. This approach facilitates an effortless derivation of the Ω6 intensity parameter, which is challenging to compute precisely by Krupke’s parametrisation of the emission spectrum and, therefore, often omitted in published research papers. Compared to the parametrisation of absorption spectra, the described method is more accurate, can be applied to any material form, and requires a single excitation spectrum.
T2  - Scientific Reports
T1  - Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum
VL  - 12
IS  - 1
SP  - 563
DO  - 10.1038/s41598-021-04651-4
ER  - 
@article{
author = "Ćirić, Aleksandar and Marciniak, Lukasz and Dramićanin, Miroslav",
year = "2022",
abstract = "Judd–Ofelt theory is a cornerstone of lanthanides’ spectroscopy given that it describes 4fn emissions and absorptions of lanthanide ions using only three intensity parameters. A self-referenced technique for computing Judd–Ofelt intensity parameters from the excitation spectra of Eu3+-activated luminescent materials is presented in this study along with an explanation of the parametrisation procedure and free user-friendly web application. It uses the integrated intensities of the 7F0 → 5D2, 7F0 → 5D4, and 7F0 → 5L6 transitions in the excitation spectrum for estimation and the integrated intensity of the 7F0 → 5D1 magnetic dipole transition for calibration. This approach facilitates an effortless derivation of the Ω6 intensity parameter, which is challenging to compute precisely by Krupke’s parametrisation of the emission spectrum and, therefore, often omitted in published research papers. Compared to the parametrisation of absorption spectra, the described method is more accurate, can be applied to any material form, and requires a single excitation spectrum.",
journal = "Scientific Reports",
title = "Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum",
volume = "12",
number = "1",
pages = "563",
doi = "10.1038/s41598-021-04651-4"
}
Ćirić, A., Marciniak, L.,& Dramićanin, M.. (2022). Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum. in Scientific Reports, 12(1), 563.
https://doi.org/10.1038/s41598-021-04651-4
Ćirić A, Marciniak L, Dramićanin M. Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum. in Scientific Reports. 2022;12(1):563.
doi:10.1038/s41598-021-04651-4 .
Ćirić, Aleksandar, Marciniak, Lukasz, Dramićanin, Miroslav, "Self‑referenced method
for the Judd–Ofelt parametrisation
of the ­Eu3+ excitation spectrum" in Scientific Reports, 12, no. 1 (2022):563,
https://doi.org/10.1038/s41598-021-04651-4 . .
3
6
1

Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology

Milićević, Bojana R.; Chen, Yingyuan; Li, Junhao; Dramićanin, Miroslav; Zhou, Jianbang; Wu, Mingmei

(2022)

TY  - JOUR
AU  - Milićević, Bojana R.
AU  - Chen, Yingyuan
AU  - Li, Junhao
AU  - Dramićanin, Miroslav
AU  - Zhou, Jianbang
AU  - Wu, Mingmei
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10148
AB  - We report an organic solvent–assisted (OSA) co-precipitation strategy for the production of Mn4+-activated K2TiF6 phosphor. The phosphor particle size was controlled through the selection of organic solvents with an alcohol functional group and different carbon chain lengths used in the synthesis. The synergistic effect of the organic solvent and hydrofluoric acid results in large smoothed hexagonal-shaped crystal sheets of particles that become larger as the carbon chain length of the organic solvent increases. The photoluminescence (PL) properties of K2TiF6:Mn powders strongly depend on the size and thickness of the particles. The addition of n-butanol during the synthesis increases the emission intensity of K2TiF6:Mn by 208%. The PL quantum efficiency of phosphors prepared using the n-butanol-assisted strategy is much higher (98.2%) than that of conventionally prepared phosphors (89.9%). Our findings demonstrate a way to prepare the K2TiF6:Mn phosphor with targeted morphology and very high quantum efficiency and also provide the route for the optimization of all Mn4+-activated fluoride phosphors used in white light-emitting diodes.
T2  - Dalton Transactions
T1  - Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology
VL  - 51
IS  - 4
SP  - 1378
EP  - 1383
DO  - 10.1039/d1dt03679c
ER  - 
@article{
author = "Milićević, Bojana R. and Chen, Yingyuan and Li, Junhao and Dramićanin, Miroslav and Zhou, Jianbang and Wu, Mingmei",
year = "2022",
abstract = "We report an organic solvent–assisted (OSA) co-precipitation strategy for the production of Mn4+-activated K2TiF6 phosphor. The phosphor particle size was controlled through the selection of organic solvents with an alcohol functional group and different carbon chain lengths used in the synthesis. The synergistic effect of the organic solvent and hydrofluoric acid results in large smoothed hexagonal-shaped crystal sheets of particles that become larger as the carbon chain length of the organic solvent increases. The photoluminescence (PL) properties of K2TiF6:Mn powders strongly depend on the size and thickness of the particles. The addition of n-butanol during the synthesis increases the emission intensity of K2TiF6:Mn by 208%. The PL quantum efficiency of phosphors prepared using the n-butanol-assisted strategy is much higher (98.2%) than that of conventionally prepared phosphors (89.9%). Our findings demonstrate a way to prepare the K2TiF6:Mn phosphor with targeted morphology and very high quantum efficiency and also provide the route for the optimization of all Mn4+-activated fluoride phosphors used in white light-emitting diodes.",
journal = "Dalton Transactions",
title = "Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology",
volume = "51",
number = "4",
pages = "1378-1383",
doi = "10.1039/d1dt03679c"
}
Milićević, B. R., Chen, Y., Li, J., Dramićanin, M., Zhou, J.,& Wu, M.. (2022). Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology. in Dalton Transactions, 51(4), 1378-1383.
https://doi.org/10.1039/d1dt03679c
Milićević BR, Chen Y, Li J, Dramićanin M, Zhou J, Wu M. Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology. in Dalton Transactions. 2022;51(4):1378-1383.
doi:10.1039/d1dt03679c .
Milićević, Bojana R., Chen, Yingyuan, Li, Junhao, Dramićanin, Miroslav, Zhou, Jianbang, Wu, Mingmei, "Organic solvent-assisted co-precipitation synthesis of red-emitting K2TiF6:Mn phosphors with improved quantum efficiency and optimized morphology" in Dalton Transactions, 51, no. 4 (2022):1378-1383,
https://doi.org/10.1039/d1dt03679c . .
3

Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers

Ćirić, Aleksandar; Periša, Jovana; Zeković, Ivana Lj.; Antić, Željka; Dramićanin, Miroslav

(2022)

TY  - JOUR
AU  - Ćirić, Aleksandar
AU  - Periša, Jovana
AU  - Zeković, Ivana Lj.
AU  - Antić, Željka
AU  - Dramićanin, Miroslav
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10172
AB  - We report on overcoming the sensitivity limit of Boltzmann's thermometers by utilization of seven thermalized Dy3+ excited states in the Lu1.5Y1·5Al5O12 host. Emission spectra recorded from room temperature to 938 K show transitions originating from seven 4F9/2, 4I15/2, 4G11/2, 4I13/2, 4M21/2, 4K17/2, and 4F7/2 excited levels to the 6H15/2 ground state. We introduce the multi-cascade LIR (McLIR) by extending the conventional, two-thermalized level Boltzmann-type LIR to seven thermalized levels. This approach provides higher energy differences between thermalized levels which results in five times larger sensitivity than in the conventional LIR. Considering energy differences between Dy3+ excited states of 1043, 2464, 4331, and 5089 cm−1, the luminescence thermometry with McLIR provided 0.35, 0.84, 1.47, 1.73% K−1 relative sensitivities at 650 K, respectively, in four different LIR combinations. The validity of the McLIR method and the effectiveness of thermalizations between levels is confirmed with the good theoretical fit of experimental data.
T2  - Journal of Luminescence
T1  - Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers
VL  - 245
SP  - 118795
DO  - 10.1016/j.jlumin.2022.118795
ER  - 
@article{
author = "Ćirić, Aleksandar and Periša, Jovana and Zeković, Ivana Lj. and Antić, Željka and Dramićanin, Miroslav",
year = "2022",
abstract = "We report on overcoming the sensitivity limit of Boltzmann's thermometers by utilization of seven thermalized Dy3+ excited states in the Lu1.5Y1·5Al5O12 host. Emission spectra recorded from room temperature to 938 K show transitions originating from seven 4F9/2, 4I15/2, 4G11/2, 4I13/2, 4M21/2, 4K17/2, and 4F7/2 excited levels to the 6H15/2 ground state. We introduce the multi-cascade LIR (McLIR) by extending the conventional, two-thermalized level Boltzmann-type LIR to seven thermalized levels. This approach provides higher energy differences between thermalized levels which results in five times larger sensitivity than in the conventional LIR. Considering energy differences between Dy3+ excited states of 1043, 2464, 4331, and 5089 cm−1, the luminescence thermometry with McLIR provided 0.35, 0.84, 1.47, 1.73% K−1 relative sensitivities at 650 K, respectively, in four different LIR combinations. The validity of the McLIR method and the effectiveness of thermalizations between levels is confirmed with the good theoretical fit of experimental data.",
journal = "Journal of Luminescence",
title = "Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers",
volume = "245",
pages = "118795",
doi = "10.1016/j.jlumin.2022.118795"
}
Ćirić, A., Periša, J., Zeković, I. Lj., Antić, Ž.,& Dramićanin, M.. (2022). Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers. in Journal of Luminescence, 245, 118795.
https://doi.org/10.1016/j.jlumin.2022.118795
Ćirić A, Periša J, Zeković IL, Antić Ž, Dramićanin M. Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers. in Journal of Luminescence. 2022;245:118795.
doi:10.1016/j.jlumin.2022.118795 .
Ćirić, Aleksandar, Periša, Jovana, Zeković, Ivana Lj., Antić, Željka, Dramićanin, Miroslav, "Multilevel-cascade intensity ratio temperature read-out of Dy3+ luminescence thermometers" in Journal of Luminescence, 245 (2022):118795,
https://doi.org/10.1016/j.jlumin.2022.118795 . .
2
2
1
2

Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory

Martinović, Ana; Dramićanin, Miroslav; Ćirić, Aleksandar

(2022)

TY  - JOUR
AU  - Martinović, Ana
AU  - Dramićanin, Miroslav
AU  - Ćirić, Aleksandar
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/10188
AB  - Energy level positions, refractive index values, Judd–Ofelt (JO) intensity parameters, Slater integrals, and spin-orbit coupling parameters are taken from the literature for 27 Dy3+-doped materials (five crystals and 22 glasses). Investigated are only the transitions that are used for the Boltzmann-type luminescence intensity ratio (LIR) thermometers (transitions from the three thermalized levels, 4F9/2, 4I15/2, and 4G11/2 to the ground level). Reduced matrix elements of these three transitions are calculated from the Slater integrals and spin-orbit coupling parameters and they are compared to the most frequently used values from Carnall's tables. The comparison of JO parameters shows the smaller variation of the Ω6, related to rigidity, in crystal hosts than in glasses, and the opposite was observed for the Ω2,4 parameters. LIR performances are simulated by the JO thermometric model for each material by the conventional LIR and the LIR that exploits the third thermalized level. The comparison of the predicted figures of merit in luminescence thermometry reveals the most promising thermometric Dy3+ doped crystals and glasses. © 2022 Wiley-VCH GmbH
T2  - Advanced Theory and Simulations
T1  - Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory
SP  - Early view
DO  - 10.1002/adts.202200029
ER  - 
@article{
author = "Martinović, Ana and Dramićanin, Miroslav and Ćirić, Aleksandar",
year = "2022",
abstract = "Energy level positions, refractive index values, Judd–Ofelt (JO) intensity parameters, Slater integrals, and spin-orbit coupling parameters are taken from the literature for 27 Dy3+-doped materials (five crystals and 22 glasses). Investigated are only the transitions that are used for the Boltzmann-type luminescence intensity ratio (LIR) thermometers (transitions from the three thermalized levels, 4F9/2, 4I15/2, and 4G11/2 to the ground level). Reduced matrix elements of these three transitions are calculated from the Slater integrals and spin-orbit coupling parameters and they are compared to the most frequently used values from Carnall's tables. The comparison of JO parameters shows the smaller variation of the Ω6, related to rigidity, in crystal hosts than in glasses, and the opposite was observed for the Ω2,4 parameters. LIR performances are simulated by the JO thermometric model for each material by the conventional LIR and the LIR that exploits the third thermalized level. The comparison of the predicted figures of merit in luminescence thermometry reveals the most promising thermometric Dy3+ doped crystals and glasses. © 2022 Wiley-VCH GmbH",
journal = "Advanced Theory and Simulations",
title = "Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory",
pages = "Early view",
doi = "10.1002/adts.202200029"
}
Martinović, A., Dramićanin, M.,& Ćirić, A.. (2022). Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory. in Advanced Theory and Simulations, Early view.
https://doi.org/10.1002/adts.202200029
Martinović A, Dramićanin M, Ćirić A. Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory. in Advanced Theory and Simulations. 2022;:Early view.
doi:10.1002/adts.202200029 .
Martinović, Ana, Dramićanin, Miroslav, Ćirić, Aleksandar, "Modeling the Performance of Dy3+-Based Boltzmann Thermometers by the Judd–Ofelt Theory" in Advanced Theory and Simulations (2022):Early view,
https://doi.org/10.1002/adts.202200029 . .