TY  - CONF
AU  - Milenković, Ivana
AU  - Algarra, Manuel
AU  - Joksimović, Kristina
AU  - Beškoski, Vladimir
AU  - Bandosz, Teresa J
AU  - Rodriguez-Castellon, Enrique
AU  - Radotić, Ksenija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1853
AB  - Bacterial and fungal resistance is an increasingly severe problem. The high microbial resistance appears to be the consequence of the unconsidered use of antibiotics and antifungal drugs, and poor infection control in hospitals. Fighting microbial resistance by using new substances based on organic nanoparticles, carbon dots (CDs) may be a promising strategy in developing new therapeutic approaches. The metal-organic frameworks (MOFs), due to their unique features including high cargo loading, biodegradability, and ability of modification have become an attractive group of nanomaterials used in several fields including nanomedicine. In the current study, we synthesized N- and S-CDs@AgMOFs nanocomposites, new substances based on organic CDs nanoparticles inserted in MOFs structures. One Gram-positive (Bacillus subtilis), one Gram-negative (Escherichia coli) bacteria, and one fungi (Candida albicans) were treated with different concentrations (15.625, 31.25, 62.5, 125, 250, 500, 1000, and 2000 mg/L) of N- and S-CDs@AgMOFs nanocomposites during 48 h. The results showed the bactericidal effect of N- and S-CDs@AgMOFs on Bacillus subtillis and the antifungal effect on Candida albicans. The effect of S-CDs@AgMOFs was stronger on bacterial cells compared to the N-CDs@AgMOFs, while both agents affected fungi in equal concentrations, indicating different mechanisms in the two types of microorganisms. In Candida albicans, minimal inhibitory concentration (MIK) of both nanocomposites was 125 mg/L, while in Bacillus subtilis MIK of N-CDs@AgMOFs was 500 mg/L and for S-CDs@AgMOFs was 250 mg/L. It can be concluded that tested nanocomposites are safe for the environment because they are not toxic in the concentrations in which they can be found in the environment.
PB  - University in Banjaluka, Faculty of Technology
C3  - International conference ˮXIV Conference of Chemists, Technologists, and Environmentalists of Republic of Srpska“
T1  - Antibacterial and antifungal effect of S- and N-AgMOF-CDs nanocomposites
SP  - 157
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1853
ER  - 

@conference{
author = "Milenković, Ivana and Algarra, Manuel and Joksimović, Kristina and Beškoski, Vladimir and Bandosz, Teresa J and Rodriguez-Castellon, Enrique and Radotić, Ksenija",
year = "2022",
abstract = "Bacterial and fungal resistance is an increasingly severe problem. The high microbial resistance appears to be the consequence of the unconsidered use of antibiotics and antifungal drugs, and poor infection control in hospitals. Fighting microbial resistance by using new substances based on organic nanoparticles, carbon dots (CDs) may be a promising strategy in developing new therapeutic approaches. The metal-organic frameworks (MOFs), due to their unique features including high cargo loading, biodegradability, and ability of modification have become an attractive group of nanomaterials used in several fields including nanomedicine. In the current study, we synthesized N- and S-CDs@AgMOFs nanocomposites, new substances based on organic CDs nanoparticles inserted in MOFs structures. One Gram-positive (Bacillus subtilis), one Gram-negative (Escherichia coli) bacteria, and one fungi (Candida albicans) were treated with different concentrations (15.625, 31.25, 62.5, 125, 250, 500, 1000, and 2000 mg/L) of N- and S-CDs@AgMOFs nanocomposites during 48 h. The results showed the bactericidal effect of N- and S-CDs@AgMOFs on Bacillus subtillis and the antifungal effect on Candida albicans. The effect of S-CDs@AgMOFs was stronger on bacterial cells compared to the N-CDs@AgMOFs, while both agents affected fungi in equal concentrations, indicating different mechanisms in the two types of microorganisms. In Candida albicans, minimal inhibitory concentration (MIK) of both nanocomposites was 125 mg/L, while in Bacillus subtilis MIK of N-CDs@AgMOFs was 500 mg/L and for S-CDs@AgMOFs was 250 mg/L. It can be concluded that tested nanocomposites are safe for the environment because they are not toxic in the concentrations in which they can be found in the environment.",
publisher = "University in Banjaluka, Faculty of Technology",
journal = "International conference ˮXIV Conference of Chemists, Technologists, and Environmentalists of Republic of Srpska“",
title = "Antibacterial and antifungal effect of S- and N-AgMOF-CDs nanocomposites",
pages = "157",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1853"
}

Milenković, I., Algarra, M., Joksimović, K., Beškoski, V., Bandosz, T. J., Rodriguez-Castellon, E.,& Radotić, K.. (2022). Antibacterial and antifungal effect of S- and N-AgMOF-CDs nanocomposites. in International conference ˮXIV Conference of Chemists, Technologists, and Environmentalists of Republic of Srpska“
University in Banjaluka, Faculty of Technology., 157.
https://hdl.handle.net/21.15107/rcub_rimsi_1853

Milenković I, Algarra M, Joksimović K, Beškoski V, Bandosz TJ, Rodriguez-Castellon E, Radotić K. Antibacterial and antifungal effect of S- and N-AgMOF-CDs nanocomposites. in International conference ˮXIV Conference of Chemists, Technologists, and Environmentalists of Republic of Srpska“. 2022;:157.
https://hdl.handle.net/21.15107/rcub_rimsi_1853 .

Milenković, Ivana, Algarra, Manuel, Joksimović, Kristina, Beškoski, Vladimir, Bandosz, Teresa J, Rodriguez-Castellon, Enrique, Radotić, Ksenija, "Antibacterial and antifungal effect of S- and N-AgMOF-CDs nanocomposites" in International conference ˮXIV Conference of Chemists, Technologists, and Environmentalists of Republic of Srpska“ (2022):157,
https://hdl.handle.net/21.15107/rcub_rimsi_1853 .

TY  - CONF
AU  - Milenković, Ivana
AU  - Algarra, Manuel
AU  - Lazaro-Martinez, Juan M.
AU  - Rodriguez-Castellon, Enrique
AU  - Radotić, Ksenija
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1858
AB  - Fingerprints analysis has been used as a powerful and reliable tool for individual identification in forensic science for more than a century. Some traditional techniques used toxic agents, so the application of fluorescent biocompatible materials, such as N-Carbon Dots (N-CDs), can be used as-received and it is non-toxic, as opposed to a lead carbonate powder routinely used by the police. N-CDs have recently gained the attention of scientists because of their stable luminescence, hydrophilicity, chemical inertness, photo-bleaching resistance, easiness of their functionalization, and low cost. In this research, N-CDs were obtained in a simple step process using the hydrothermal treatment of polyvinylpyrrolidone (PVP), as an N source, and further used for the detection of fingerprints through fluorescent imaging. A brightness emission at 495 nm of N-CDs was related to their structural and chemical properties. Detailed surface characterizations with ss-NMR, XPS, and fluorescence spectroscopies, suggested that the negative charge of the functional groups promoted electrostatic interactions between the charged N-CDs surface functional groups (amine, carboxylic, and amide) and the secretion components present in the thin layer of fluid left on the surface upon its direct contact with human fingers. Based on biometric identification, the obtained results were validated by the scientific protocol of the Police Automated Fingerprint Identification System (AFIS).
PB  - Faculty of Technology, University of Novi Sad
C3  - 14th ECerS Conference for Young Scientists in Ceramics
T1  - N-doped carbon dots improve fingerprint imaging
EP  - 46
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1858
ER  - 

@conference{
author = "Milenković, Ivana and Algarra, Manuel and Lazaro-Martinez, Juan M. and Rodriguez-Castellon, Enrique and Radotić, Ksenija",
year = "2021",
abstract = "Fingerprints analysis has been used as a powerful and reliable tool for individual identification in forensic science for more than a century. Some traditional techniques used toxic agents, so the application of fluorescent biocompatible materials, such as N-Carbon Dots (N-CDs), can be used as-received and it is non-toxic, as opposed to a lead carbonate powder routinely used by the police. N-CDs have recently gained the attention of scientists because of their stable luminescence, hydrophilicity, chemical inertness, photo-bleaching resistance, easiness of their functionalization, and low cost. In this research, N-CDs were obtained in a simple step process using the hydrothermal treatment of polyvinylpyrrolidone (PVP), as an N source, and further used for the detection of fingerprints through fluorescent imaging. A brightness emission at 495 nm of N-CDs was related to their structural and chemical properties. Detailed surface characterizations with ss-NMR, XPS, and fluorescence spectroscopies, suggested that the negative charge of the functional groups promoted electrostatic interactions between the charged N-CDs surface functional groups (amine, carboxylic, and amide) and the secretion components present in the thin layer of fluid left on the surface upon its direct contact with human fingers. Based on biometric identification, the obtained results were validated by the scientific protocol of the Police Automated Fingerprint Identification System (AFIS).",
publisher = "Faculty of Technology, University of Novi Sad",
journal = "14th ECerS Conference for Young Scientists in Ceramics",
title = "N-doped carbon dots improve fingerprint imaging",
pages = "46-45",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1858"
}

Milenković, I., Algarra, M., Lazaro-Martinez, J. M., Rodriguez-Castellon, E.,& Radotić, K.. (2021). N-doped carbon dots improve fingerprint imaging. in 14th ECerS Conference for Young Scientists in Ceramics
Faculty of Technology, University of Novi Sad., 45-46.
https://hdl.handle.net/21.15107/rcub_rimsi_1858

Milenković I, Algarra M, Lazaro-Martinez JM, Rodriguez-Castellon E, Radotić K. N-doped carbon dots improve fingerprint imaging. in 14th ECerS Conference for Young Scientists in Ceramics. 2021;:45-46.
https://hdl.handle.net/21.15107/rcub_rimsi_1858 .

Milenković, Ivana, Algarra, Manuel, Lazaro-Martinez, Juan M., Rodriguez-Castellon, Enrique, Radotić, Ksenija, "N-doped carbon dots improve fingerprint imaging" in 14th ECerS Conference for Young Scientists in Ceramics (2021):45-46,
https://hdl.handle.net/21.15107/rcub_rimsi_1858 .

TY  - JOUR
AU  - Milenković, Ivana
AU  - Mitrović, Aleksandra Lj.
AU  - Algarra, Manuel
AU  - Lazaro-Martinez, Juan M.
AU  - Rodriguez-Castellon, Enrique
AU  - Maksimović, Vuk
AU  - Spasić, Slađana
AU  - Beskoski, Vladimir P.
AU  - Radotić, Ksenija
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1203
AB  - Reports about the influence of cerium-oxide nanoparticles (nCeO(2)) on plants are contradictory due to their positive and negative effects on plants. Surface modification may affect the interaction of nCeO(2) with the environment, and hence its availability to plants. In this study, the uncoated and glucose-, levan-, and pullulan-coated nCeO(2) were synthesized and characterized. The aim was to determine whether nontoxic carbohydrates alter the effect of nCeO(2) on the seed germination, plant growth, and metabolism of wheat and pea. We applied 200 mgL(-1) of nCeO(2) on plants during germination (Ger treatment) or three week-growth (Gro treatment) in hydroponics. The plant response to nCeO(2) was studied by measuring changes in Ce concentration, total antioxidative activity (TAA), total phenolic content (TPC), and phenolic profile. Our results generally revealed higher Ce concentration in plants after the treatment with coated nanoparticles compared to uncoated ones. Considering all obtained results, Ger treatment had a stronger impact on the later stages of plant development than Gro treatment. The Ger treatment had a stronger impact on TPC and plant elongation, whereas Gro treatment affected more TAA and phenolic profile. Among nanoparticles, levan-coated nCeO(2) had the strongest and positive impact on tested plants. Wheat showed higher sensitivity to all treatments.
PB  - MDPI, Basel
T2  - Plants-Basel
T1  - Interaction of Carbohydrate Coated Cerium-Oxide Nanoparticles with Wheat and Pea: Stress Induction Potential and Effect on Development
IS  - 11
VL  - 8
DO  - 10.3390/plants8110478
ER  - 

@article{
author = "Milenković, Ivana and Mitrović, Aleksandra Lj. and Algarra, Manuel and Lazaro-Martinez, Juan M. and Rodriguez-Castellon, Enrique and Maksimović, Vuk and Spasić, Slađana and Beskoski, Vladimir P. and Radotić, Ksenija",
year = "2019",
abstract = "Reports about the influence of cerium-oxide nanoparticles (nCeO(2)) on plants are contradictory due to their positive and negative effects on plants. Surface modification may affect the interaction of nCeO(2) with the environment, and hence its availability to plants. In this study, the uncoated and glucose-, levan-, and pullulan-coated nCeO(2) were synthesized and characterized. The aim was to determine whether nontoxic carbohydrates alter the effect of nCeO(2) on the seed germination, plant growth, and metabolism of wheat and pea. We applied 200 mgL(-1) of nCeO(2) on plants during germination (Ger treatment) or three week-growth (Gro treatment) in hydroponics. The plant response to nCeO(2) was studied by measuring changes in Ce concentration, total antioxidative activity (TAA), total phenolic content (TPC), and phenolic profile. Our results generally revealed higher Ce concentration in plants after the treatment with coated nanoparticles compared to uncoated ones. Considering all obtained results, Ger treatment had a stronger impact on the later stages of plant development than Gro treatment. The Ger treatment had a stronger impact on TPC and plant elongation, whereas Gro treatment affected more TAA and phenolic profile. Among nanoparticles, levan-coated nCeO(2) had the strongest and positive impact on tested plants. Wheat showed higher sensitivity to all treatments.",
publisher = "MDPI, Basel",
journal = "Plants-Basel",
title = "Interaction of Carbohydrate Coated Cerium-Oxide Nanoparticles with Wheat and Pea: Stress Induction Potential and Effect on Development",
number = "11",
volume = "8",
doi = "10.3390/plants8110478"
}

Milenković, I., Mitrović, A. Lj., Algarra, M., Lazaro-Martinez, J. M., Rodriguez-Castellon, E., Maksimović, V., Spasić, S., Beskoski, V. P.,& Radotić, K.. (2019). Interaction of Carbohydrate Coated Cerium-Oxide Nanoparticles with Wheat and Pea: Stress Induction Potential and Effect on Development. in Plants-Basel
MDPI, Basel., 8(11).
https://doi.org/10.3390/plants8110478

Milenković I, Mitrović AL, Algarra M, Lazaro-Martinez JM, Rodriguez-Castellon E, Maksimović V, Spasić S, Beskoski VP, Radotić K. Interaction of Carbohydrate Coated Cerium-Oxide Nanoparticles with Wheat and Pea: Stress Induction Potential and Effect on Development. in Plants-Basel. 2019;8(11).
doi:10.3390/plants8110478 .

Milenković, Ivana, Mitrović, Aleksandra Lj., Algarra, Manuel, Lazaro-Martinez, Juan M., Rodriguez-Castellon, Enrique, Maksimović, Vuk, Spasić, Slađana, Beskoski, Vladimir P., Radotić, Ksenija, "Interaction of Carbohydrate Coated Cerium-Oxide Nanoparticles with Wheat and Pea: Stress Induction Potential and Effect on Development" in Plants-Basel, 8, no. 11 (2019),
https://doi.org/10.3390/plants8110478 . .

TY  - JOUR
AU  - Algarra, Manuel
AU  - Bartolić, Dragana
AU  - Radotić, Ksenija
AU  - Mutavdžić, Dragosav
AU  - Soledad, Pino-Gonzalez, M.
AU  - Rodriguez-Castellon, Enrique
AU  - Manuel, Lazaro-Martinez, Juan
AU  - Jose Guerrero-Gonzalez, Juan
AU  - Esteves da Silva, Joaquim C.G.
AU  - Jimenez-Jimenez, Jose
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1245
AB  - A simple, fast, and laboratory efficient doped P carbon nanoparticles synthesis is developed for fingerprint imaging, using 1,3-dihydroxyacetone and di-phosphorous pentoxide. Fluorescence nanoparticles, with an average size of 230 nm were obtained, without additional energy input or external heating. ATR, solid NMR, XPS and fluorescence spectroscopy revealed their surface functionalization; a reaction mechanism is proposed. Fluorescence measurements exhibited a maximum emission band at ca. 495 nm, when excited at 385 nm. The images obtained, on different surfaces such as mobile telephone screen, magnetic band and metallic surface of a credit card and a Euro banknote treated with the obtained nano-powders allows us to record positive matches, confirming that the experimental results illustrate the effectiveness of proposed method.
PB  - Elsevier, Amsterdam
T2  - Talanta
T1  - P-doped carbon nano-powders for fingerprint imaging
EP  - 157
SP  - 150
VL  - 194
DO  - 10.1016/j.talanta.2018.10.033
ER  - 

@article{
author = "Algarra, Manuel and Bartolić, Dragana and Radotić, Ksenija and Mutavdžić, Dragosav and Soledad, Pino-Gonzalez, M. and Rodriguez-Castellon, Enrique and Manuel, Lazaro-Martinez, Juan and Jose Guerrero-Gonzalez, Juan and Esteves da Silva, Joaquim C.G. and Jimenez-Jimenez, Jose",
year = "2019",
abstract = "A simple, fast, and laboratory efficient doped P carbon nanoparticles synthesis is developed for fingerprint imaging, using 1,3-dihydroxyacetone and di-phosphorous pentoxide. Fluorescence nanoparticles, with an average size of 230 nm were obtained, without additional energy input or external heating. ATR, solid NMR, XPS and fluorescence spectroscopy revealed their surface functionalization; a reaction mechanism is proposed. Fluorescence measurements exhibited a maximum emission band at ca. 495 nm, when excited at 385 nm. The images obtained, on different surfaces such as mobile telephone screen, magnetic band and metallic surface of a credit card and a Euro banknote treated with the obtained nano-powders allows us to record positive matches, confirming that the experimental results illustrate the effectiveness of proposed method.",
publisher = "Elsevier, Amsterdam",
journal = "Talanta",
title = "P-doped carbon nano-powders for fingerprint imaging",
pages = "157-150",
volume = "194",
doi = "10.1016/j.talanta.2018.10.033"
}

Algarra, M., Bartolić, D., Radotić, K., Mutavdžić, D., Soledad, P. M., Rodriguez-Castellon, E., Manuel, L. J., Jose Guerrero-Gonzalez, J., Esteves da Silva, J. C.G.,& Jimenez-Jimenez, J.. (2019). P-doped carbon nano-powders for fingerprint imaging. in Talanta
Elsevier, Amsterdam., 194, 150-157.
https://doi.org/10.1016/j.talanta.2018.10.033

Algarra M, Bartolić D, Radotić K, Mutavdžić D, Soledad PM, Rodriguez-Castellon E, Manuel LJ, Jose Guerrero-Gonzalez J, Esteves da Silva JC, Jimenez-Jimenez J. P-doped carbon nano-powders for fingerprint imaging. in Talanta. 2019;194:150-157.
doi:10.1016/j.talanta.2018.10.033 .

Algarra, Manuel, Bartolić, Dragana, Radotić, Ksenija, Mutavdžić, Dragosav, Soledad, Pino-Gonzalez, M., Rodriguez-Castellon, Enrique, Manuel, Lazaro-Martinez, Juan, Jose Guerrero-Gonzalez, Juan, Esteves da Silva, Joaquim C.G., Jimenez-Jimenez, Jose, "P-doped carbon nano-powders for fingerprint imaging" in Talanta, 194 (2019):150-157,
https://doi.org/10.1016/j.talanta.2018.10.033 . .

TY  - JOUR
AU  - Milenković, Ivana
AU  - Algarra, Manuel
AU  - Alcoholado, Cristina
AU  - Cifuentes, Manuel
AU  - Lazaro-Martinez, Juan M.
AU  - Rodriguez-Castellon, Enrique
AU  - Mutavdžić, Dragosav
AU  - Radotić, Ksenija
AU  - Bandosz, Teresa
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1243
AB  - Carbon Dots (CDs) were obtained using a hydrothermal method and used for the detection of finger-prints through fluorescent imaging. Synthesized CDs exhibited a brightness emission at 495 nm, which was related to their structural and chemical properties. The results of detailed surface characterizations by XPS, ss-NMR and fluorescence spectroscopies, suggested that the negative charge of the functionals groups promoted electrostatic interactions between the charged CDs surface functional groups (amine, amide and carboxylic) and the secretion components present in the thin layer of fluid left on the surface upon its direct contact with human fingers. The obtained results were validated by the scientific protocol of the Police Automated Fingerprint Identification System (AFIS) based on a biometric identification.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Carbon
T1  - Fingerprint imaging using N-doped carbon dots
EP  - 797
SP  - 791
VL  - 144
DO  - 10.1016/j.carbon.2018.12.102
ER  - 

@article{
author = "Milenković, Ivana and Algarra, Manuel and Alcoholado, Cristina and Cifuentes, Manuel and Lazaro-Martinez, Juan M. and Rodriguez-Castellon, Enrique and Mutavdžić, Dragosav and Radotić, Ksenija and Bandosz, Teresa",
year = "2019",
abstract = "Carbon Dots (CDs) were obtained using a hydrothermal method and used for the detection of finger-prints through fluorescent imaging. Synthesized CDs exhibited a brightness emission at 495 nm, which was related to their structural and chemical properties. The results of detailed surface characterizations by XPS, ss-NMR and fluorescence spectroscopies, suggested that the negative charge of the functionals groups promoted electrostatic interactions between the charged CDs surface functional groups (amine, amide and carboxylic) and the secretion components present in the thin layer of fluid left on the surface upon its direct contact with human fingers. The obtained results were validated by the scientific protocol of the Police Automated Fingerprint Identification System (AFIS) based on a biometric identification.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Carbon",
title = "Fingerprint imaging using N-doped carbon dots",
pages = "797-791",
volume = "144",
doi = "10.1016/j.carbon.2018.12.102"
}

Milenković, I., Algarra, M., Alcoholado, C., Cifuentes, M., Lazaro-Martinez, J. M., Rodriguez-Castellon, E., Mutavdžić, D., Radotić, K.,& Bandosz, T.. (2019). Fingerprint imaging using N-doped carbon dots. in Carbon
Pergamon-Elsevier Science Ltd, Oxford., 144, 791-797.
https://doi.org/10.1016/j.carbon.2018.12.102

Milenković I, Algarra M, Alcoholado C, Cifuentes M, Lazaro-Martinez JM, Rodriguez-Castellon E, Mutavdžić D, Radotić K, Bandosz T. Fingerprint imaging using N-doped carbon dots. in Carbon. 2019;144:791-797.
doi:10.1016/j.carbon.2018.12.102 .

Milenković, Ivana, Algarra, Manuel, Alcoholado, Cristina, Cifuentes, Manuel, Lazaro-Martinez, Juan M., Rodriguez-Castellon, Enrique, Mutavdžić, Dragosav, Radotić, Ksenija, Bandosz, Teresa, "Fingerprint imaging using N-doped carbon dots" in Carbon, 144 (2019):791-797,
https://doi.org/10.1016/j.carbon.2018.12.102 . .

TY  - JOUR
AU  - Algarra, Manuel
AU  - Gonzalez-Calabuig, A.
AU  - Radotić, Ksenija
AU  - Mutavdžić, Dragosav
AU  - Ania, C. O.
AU  - Lazaro-Martinez, Juan M.
AU  - Jimenez-Jimenez, Jose
AU  - Rodriguez-Castellon, Enrique
AU  - del, Valle, M.
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1127
AB  - A glassy carbon electrode (GCE) was surface-modified with carbon quantum dots (CQDs) and applied for the effective enhancement of the electrochemical signal for dopamine and uric acid determination. CQDs were prepared from graphite by a green modification of the Hummers method. They were characterized by FTIR-ATR, XPS, solid-state NMR, fluorescence and Raman spectroscopies. TPD-MS analysis was applied to characterize the functionalization of the surface. The CQDs were assembled on the glassy carbon electrode by adsorption because of the large number of carboxy groups on their surface warrants effective adsorption. The modified GCE exhibits a sensitivity that is almost 10 times better than of the bare GCE. The lower limits of detection are 1.3 mu M for uric acid and 2.7 mu M for dopamine.
PB  - Elsevier, Amsterdam
T2  - Talanta
T1  - Enhanced electrochemical response of carbon quantum dot modified electrodes
EP  - 685
SP  - 679
VL  - 178
DO  - 10.1016/j.talanta.2017.09.082
ER  - 

@article{
author = "Algarra, Manuel and Gonzalez-Calabuig, A. and Radotić, Ksenija and Mutavdžić, Dragosav and Ania, C. O. and Lazaro-Martinez, Juan M. and Jimenez-Jimenez, Jose and Rodriguez-Castellon, Enrique and del, Valle, M.",
year = "2018",
abstract = "A glassy carbon electrode (GCE) was surface-modified with carbon quantum dots (CQDs) and applied for the effective enhancement of the electrochemical signal for dopamine and uric acid determination. CQDs were prepared from graphite by a green modification of the Hummers method. They were characterized by FTIR-ATR, XPS, solid-state NMR, fluorescence and Raman spectroscopies. TPD-MS analysis was applied to characterize the functionalization of the surface. The CQDs were assembled on the glassy carbon electrode by adsorption because of the large number of carboxy groups on their surface warrants effective adsorption. The modified GCE exhibits a sensitivity that is almost 10 times better than of the bare GCE. The lower limits of detection are 1.3 mu M for uric acid and 2.7 mu M for dopamine.",
publisher = "Elsevier, Amsterdam",
journal = "Talanta",
title = "Enhanced electrochemical response of carbon quantum dot modified electrodes",
pages = "685-679",
volume = "178",
doi = "10.1016/j.talanta.2017.09.082"
}

Algarra, M., Gonzalez-Calabuig, A., Radotić, K., Mutavdžić, D., Ania, C. O., Lazaro-Martinez, J. M., Jimenez-Jimenez, J., Rodriguez-Castellon, E.,& del, V. M.. (2018). Enhanced electrochemical response of carbon quantum dot modified electrodes. in Talanta
Elsevier, Amsterdam., 178, 679-685.
https://doi.org/10.1016/j.talanta.2017.09.082

Algarra M, Gonzalez-Calabuig A, Radotić K, Mutavdžić D, Ania CO, Lazaro-Martinez JM, Jimenez-Jimenez J, Rodriguez-Castellon E, del VM. Enhanced electrochemical response of carbon quantum dot modified electrodes. in Talanta. 2018;178:679-685.
doi:10.1016/j.talanta.2017.09.082 .

Algarra, Manuel, Gonzalez-Calabuig, A., Radotić, Ksenija, Mutavdžić, Dragosav, Ania, C. O., Lazaro-Martinez, Juan M., Jimenez-Jimenez, Jose, Rodriguez-Castellon, Enrique, del, Valle, M., "Enhanced electrochemical response of carbon quantum dot modified electrodes" in Talanta, 178 (2018):679-685,
https://doi.org/10.1016/j.talanta.2017.09.082 . .

TY  - JOUR
AU  - Campos, Bruno B.
AU  - Mutavdžić, Dragosav
AU  - Stanković, Mira
AU  - Radotić, Ksenija
AU  - Lazaro-Martinez, Juan M.
AU  - Esteves da Silva, Joaquim C.G.
AU  - Contreras-Caceres, Rafael
AU  - Soledad, Pino-Gonzalez, M.
AU  - Rodriguez-Castellon, Enrique
AU  - Algarra, Manuel
PY  - 2017
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1053
AB  - In this work carbon quantum dot (CQD) nanoparticles are synthesized from D-lactose using a hydrothermal method and then they are coated with polyethylene glycol (CQDs"PEG). These particles exhibit a monodisperse spherical morphology with an average particle size of similar to 4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted onto the CQDs' surfaces, which confirms that PEG was covalently attached to the nanoparticles' surfaces. Fluorescence analysis demonstrates a shift in the emission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels. The resultant pNIPAM-CQDs"PEG hybrid system exhibits interesting fluorescence properties. Transmission electron microscopy (TEM), fluorescence microscopy, and energy-dispersive X-ray (EDX) spectroscopy confirm the incorporation of CQD particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that further hybrid microgels based on pNIPAM are thermo-responsive, with a transition temperature similar to that of a system with an ionic component.
PB  - Royal Soc Chemistry, Cambridge
T2  - New Journal of Chemistry
T1  - Thermo-responsive microgels based on encapsulated carbon quantum dots
EP  - 4842
IS  - 12
SP  - 4835
VL  - 41
DO  - 10.1039/c6nj03893j
ER  - 

@article{
author = "Campos, Bruno B. and Mutavdžić, Dragosav and Stanković, Mira and Radotić, Ksenija and Lazaro-Martinez, Juan M. and Esteves da Silva, Joaquim C.G. and Contreras-Caceres, Rafael and Soledad, Pino-Gonzalez, M. and Rodriguez-Castellon, Enrique and Algarra, Manuel",
year = "2017",
abstract = "In this work carbon quantum dot (CQD) nanoparticles are synthesized from D-lactose using a hydrothermal method and then they are coated with polyethylene glycol (CQDs"PEG). These particles exhibit a monodisperse spherical morphology with an average particle size of similar to 4 nm. Nuclear magnetic resonance (NMR) and Fourier transform infrared (FTIR) spectroscopy showed the presence of the hydroxyl groups from the ethylene glycol molecules grafted onto the CQDs' surfaces, which confirms that PEG was covalently attached to the nanoparticles' surfaces. Fluorescence analysis demonstrates a shift in the emission at 495 nm after PEG coating. Modified carbon dots were introduced into thermo-responsive pNIPAM microgels. The resultant pNIPAM-CQDs"PEG hybrid system exhibits interesting fluorescence properties. Transmission electron microscopy (TEM), fluorescence microscopy, and energy-dispersive X-ray (EDX) spectroscopy confirm the incorporation of CQD particles into the microgels. Finally, dynamic light scattering (DLS) analysis confirms that further hybrid microgels based on pNIPAM are thermo-responsive, with a transition temperature similar to that of a system with an ionic component.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "New Journal of Chemistry",
title = "Thermo-responsive microgels based on encapsulated carbon quantum dots",
pages = "4842-4835",
number = "12",
volume = "41",
doi = "10.1039/c6nj03893j"
}

Campos, B. B., Mutavdžić, D., Stanković, M., Radotić, K., Lazaro-Martinez, J. M., Esteves da Silva, J. C.G., Contreras-Caceres, R., Soledad, P. M., Rodriguez-Castellon, E.,& Algarra, M.. (2017). Thermo-responsive microgels based on encapsulated carbon quantum dots. in New Journal of Chemistry
Royal Soc Chemistry, Cambridge., 41(12), 4835-4842.
https://doi.org/10.1039/c6nj03893j

Campos BB, Mutavdžić D, Stanković M, Radotić K, Lazaro-Martinez JM, Esteves da Silva JC, Contreras-Caceres R, Soledad PM, Rodriguez-Castellon E, Algarra M. Thermo-responsive microgels based on encapsulated carbon quantum dots. in New Journal of Chemistry. 2017;41(12):4835-4842.
doi:10.1039/c6nj03893j .

Campos, Bruno B., Mutavdžić, Dragosav, Stanković, Mira, Radotić, Ksenija, Lazaro-Martinez, Juan M., Esteves da Silva, Joaquim C.G., Contreras-Caceres, Rafael, Soledad, Pino-Gonzalez, M., Rodriguez-Castellon, Enrique, Algarra, Manuel, "Thermo-responsive microgels based on encapsulated carbon quantum dots" in New Journal of Chemistry, 41, no. 12 (2017):4835-4842,
https://doi.org/10.1039/c6nj03893j . .

TY  - JOUR
AU  - Campos, Bruno B.
AU  - Algarra, Manuel
AU  - Radotić, Ksenija
AU  - Mutavdžić, Dragosav
AU  - Rodriguez-Castellon, Enrique
AU  - Jimenez-Jimenez, Jose
AU  - Alonso, Beatriz
AU  - Casado, Carmen M.
AU  - Esteves da Silva, Joaquim C.G.
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/893
AB  - We report a nanocomposite of ZnS:Mn quantum dots and a third generation PAMAM-OH dendrimer (ZnS:Mn"PAMAM-OHG=3) which was rationalized to be used as ratiometric nanosensor for Cd2+ in aqueous solution. The nanoparticles exhibited a bright yellow-orange emission with peaks at 448 and 595 nm. The structure of ZnS:Mn was not changed after coupling with PAMAM-OH, which was evidenced by the analysis of the emission spectra of the compounds. The results confirm that the prepared fluorescence nanoparticles could selectively detect Cd2+ in aqueous solution with a limit of detection of 24.34 mu M and RSD 4.07%, obtained by using the ratio I-448/I-595. The method was applied to different water samples.
PB  - Elsevier, Amsterdam
T2  - Talanta
T1  - ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium
EP  - 324
SP  - 317
VL  - 134
DO  - 10.1016/j.talanta.2014.10.010
ER  - 

@article{
author = "Campos, Bruno B. and Algarra, Manuel and Radotić, Ksenija and Mutavdžić, Dragosav and Rodriguez-Castellon, Enrique and Jimenez-Jimenez, Jose and Alonso, Beatriz and Casado, Carmen M. and Esteves da Silva, Joaquim C.G.",
year = "2015",
abstract = "We report a nanocomposite of ZnS:Mn quantum dots and a third generation PAMAM-OH dendrimer (ZnS:Mn"PAMAM-OHG=3) which was rationalized to be used as ratiometric nanosensor for Cd2+ in aqueous solution. The nanoparticles exhibited a bright yellow-orange emission with peaks at 448 and 595 nm. The structure of ZnS:Mn was not changed after coupling with PAMAM-OH, which was evidenced by the analysis of the emission spectra of the compounds. The results confirm that the prepared fluorescence nanoparticles could selectively detect Cd2+ in aqueous solution with a limit of detection of 24.34 mu M and RSD 4.07%, obtained by using the ratio I-448/I-595. The method was applied to different water samples.",
publisher = "Elsevier, Amsterdam",
journal = "Talanta",
title = "ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium",
pages = "324-317",
volume = "134",
doi = "10.1016/j.talanta.2014.10.010"
}

Campos, B. B., Algarra, M., Radotić, K., Mutavdžić, D., Rodriguez-Castellon, E., Jimenez-Jimenez, J., Alonso, B., Casado, C. M.,& Esteves da Silva, J. C.G.. (2015). ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium. in Talanta
Elsevier, Amsterdam., 134, 317-324.
https://doi.org/10.1016/j.talanta.2014.10.010

Campos BB, Algarra M, Radotić K, Mutavdžić D, Rodriguez-Castellon E, Jimenez-Jimenez J, Alonso B, Casado CM, Esteves da Silva JC. ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium. in Talanta. 2015;134:317-324.
doi:10.1016/j.talanta.2014.10.010 .

Campos, Bruno B., Algarra, Manuel, Radotić, Ksenija, Mutavdžić, Dragosav, Rodriguez-Castellon, Enrique, Jimenez-Jimenez, Jose, Alonso, Beatriz, Casado, Carmen M., Esteves da Silva, Joaquim C.G., "ZnS:Mn nanoparticles functionalized by PAMAM-OH dendrimer based fluorescence ratiometric probe for cadmium" in Talanta, 134 (2015):317-324,
https://doi.org/10.1016/j.talanta.2014.10.010 . .

TY  - JOUR
AU  - Algarra, Manuel
AU  - Radotić, Ksenija
AU  - Kalauzi, Aleksandar
AU  - Mutavdžić, Dragosav
AU  - Savić, Aleksandar G
AU  - Jimenez-Jimenez, Jose
AU  - Rodriguez-Castellon, Enrique
AU  - Esteves da Silva, Joaquim C.G.
AU  - Jose Guerrero-Gonzalez, Juan
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/794
AB  - A fluorescent nanocomposite based on the inclusion of CdSe quantum dots in porous phosphate heterostructures, functionalized with amino groups (PPH-NH2"CdSe), was synthesized, characterized and used for fingerprint detection. The main scopes of this work were first to develop a friendly chemical powder for detecting latent fingerprints, especially in non-porous surfaces; their further intercalation in PPH structure enables not to spread the fluorescent nanoparticles, for that reason very good fluorescent images can be obtained. The fingerprints, obtained on different non-porous surfaces such as iron tweezers, mobile telephone screen and magnetic band of a credit card, treated with this powder emit a pale orange luminescence under ultraviolet excitation. A further image processing consists of contrast enhancement that allows obtaining positive matches according to the information supplied from a police database, and showed to be more effective than that obtained with the non-processed images. Experimental results illustrate the effectiveness of proposed methods.
PB  - Elsevier, Amsterdam
T2  - Analytica Chimica Acta
T1  - Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces
EP  - 235
SP  - 228
VL  - 812
DO  - 10.1016/j.aca.2014.01.015
ER  - 

@article{
author = "Algarra, Manuel and Radotić, Ksenija and Kalauzi, Aleksandar and Mutavdžić, Dragosav and Savić, Aleksandar G and Jimenez-Jimenez, Jose and Rodriguez-Castellon, Enrique and Esteves da Silva, Joaquim C.G. and Jose Guerrero-Gonzalez, Juan",
year = "2014",
abstract = "A fluorescent nanocomposite based on the inclusion of CdSe quantum dots in porous phosphate heterostructures, functionalized with amino groups (PPH-NH2"CdSe), was synthesized, characterized and used for fingerprint detection. The main scopes of this work were first to develop a friendly chemical powder for detecting latent fingerprints, especially in non-porous surfaces; their further intercalation in PPH structure enables not to spread the fluorescent nanoparticles, for that reason very good fluorescent images can be obtained. The fingerprints, obtained on different non-porous surfaces such as iron tweezers, mobile telephone screen and magnetic band of a credit card, treated with this powder emit a pale orange luminescence under ultraviolet excitation. A further image processing consists of contrast enhancement that allows obtaining positive matches according to the information supplied from a police database, and showed to be more effective than that obtained with the non-processed images. Experimental results illustrate the effectiveness of proposed methods.",
publisher = "Elsevier, Amsterdam",
journal = "Analytica Chimica Acta",
title = "Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces",
pages = "235-228",
volume = "812",
doi = "10.1016/j.aca.2014.01.015"
}

Algarra, M., Radotić, K., Kalauzi, A., Mutavdžić, D., Savić, A. G., Jimenez-Jimenez, J., Rodriguez-Castellon, E., Esteves da Silva, J. C.G.,& Jose Guerrero-Gonzalez, J.. (2014). Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces. in Analytica Chimica Acta
Elsevier, Amsterdam., 812, 228-235.
https://doi.org/10.1016/j.aca.2014.01.015

Algarra M, Radotić K, Kalauzi A, Mutavdžić D, Savić AG, Jimenez-Jimenez J, Rodriguez-Castellon E, Esteves da Silva JC, Jose Guerrero-Gonzalez J. Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces. in Analytica Chimica Acta. 2014;812:228-235.
doi:10.1016/j.aca.2014.01.015 .

Algarra, Manuel, Radotić, Ksenija, Kalauzi, Aleksandar, Mutavdžić, Dragosav, Savić, Aleksandar G, Jimenez-Jimenez, Jose, Rodriguez-Castellon, Enrique, Esteves da Silva, Joaquim C.G., Jose Guerrero-Gonzalez, Juan, "Fingerprint detection and using intercalated CdSe nanoparticles on non-porous surfaces" in Analytica Chimica Acta, 812 (2014):228-235,
https://doi.org/10.1016/j.aca.2014.01.015 . .

TY  - JOUR
AU  - Algarra, Manuel
AU  - Campos, Bruno B
AU  - Radotić, Ksenija
AU  - Mutavdžić, Dragosav
AU  - Bandosz, Teresa
AU  - Jimenez-Jimenez, Jose
AU  - Rodriguez-Castellon, Enrique
AU  - Esteves da Silva, Joaquim C.G.
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/785
AB  - Luminescent carbon-based nanoparticles, addressed as carbon dots (CDs), were synthesized at relatively low temperature from lactose following an easy and inexpensive procedure. Modification of their surface was done by functionalization with mercaptosuccinic acid (MSA) (CDs-MSA). Transmission electron microscopy images showed regular spherical nanoparticles of 5 nm diameter. Raw and functionalized (CDs-MSA) CDs were highly fluorescent at 448 and 472 nm, with relative high quantum yield (Phi = 0.21 and 0.46 respectively). At the maximum fluorescence of CDs-MSA the intensity was quenched by addition of Ag+ ions by a static mechanism with a Stern-Volmer constant of 3.7 x 10(3) M-1. The analysis of the emission spectra showed that the CD-MSA complex was stable after this process. The quenching profiles showed that only 44% of the CD-MSA fluorophores are accessible to Ag+. The main figures of merit were detection and quantification limits of 385.8 nM and 1.2 mu M respectively, and the precision as relative standard deviation was 1.76%. No interference was observed when other metal ions were present indicating a high selectivity for Ag+ detection. The results showed that CDs-MSA can be used for efficient quantification of Ag+ in silver nanoparticle dissolution.
PB  - Royal Soc Chemistry, Cambridge
T2  - Journal of Materials Chemistry A
T1  - Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties
EP  - 8351
IS  - 22
SP  - 8342
VL  - 2
DO  - 10.1039/c4ta00264d
ER  - 

@article{
author = "Algarra, Manuel and Campos, Bruno B and Radotić, Ksenija and Mutavdžić, Dragosav and Bandosz, Teresa and Jimenez-Jimenez, Jose and Rodriguez-Castellon, Enrique and Esteves da Silva, Joaquim C.G.",
year = "2014",
abstract = "Luminescent carbon-based nanoparticles, addressed as carbon dots (CDs), were synthesized at relatively low temperature from lactose following an easy and inexpensive procedure. Modification of their surface was done by functionalization with mercaptosuccinic acid (MSA) (CDs-MSA). Transmission electron microscopy images showed regular spherical nanoparticles of 5 nm diameter. Raw and functionalized (CDs-MSA) CDs were highly fluorescent at 448 and 472 nm, with relative high quantum yield (Phi = 0.21 and 0.46 respectively). At the maximum fluorescence of CDs-MSA the intensity was quenched by addition of Ag+ ions by a static mechanism with a Stern-Volmer constant of 3.7 x 10(3) M-1. The analysis of the emission spectra showed that the CD-MSA complex was stable after this process. The quenching profiles showed that only 44% of the CD-MSA fluorophores are accessible to Ag+. The main figures of merit were detection and quantification limits of 385.8 nM and 1.2 mu M respectively, and the precision as relative standard deviation was 1.76%. No interference was observed when other metal ions were present indicating a high selectivity for Ag+ detection. The results showed that CDs-MSA can be used for efficient quantification of Ag+ in silver nanoparticle dissolution.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Journal of Materials Chemistry A",
title = "Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties",
pages = "8351-8342",
number = "22",
volume = "2",
doi = "10.1039/c4ta00264d"
}

Algarra, M., Campos, B. B., Radotić, K., Mutavdžić, D., Bandosz, T., Jimenez-Jimenez, J., Rodriguez-Castellon, E.,& Esteves da Silva, J. C.G.. (2014). Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties. in Journal of Materials Chemistry A
Royal Soc Chemistry, Cambridge., 2(22), 8342-8351.
https://doi.org/10.1039/c4ta00264d

Algarra M, Campos BB, Radotić K, Mutavdžić D, Bandosz T, Jimenez-Jimenez J, Rodriguez-Castellon E, Esteves da Silva JC. Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties. in Journal of Materials Chemistry A. 2014;2(22):8342-8351.
doi:10.1039/c4ta00264d .

Algarra, Manuel, Campos, Bruno B, Radotić, Ksenija, Mutavdžić, Dragosav, Bandosz, Teresa, Jimenez-Jimenez, Jose, Rodriguez-Castellon, Enrique, Esteves da Silva, Joaquim C.G., "Luminescent carbon nanoparticles: effects of chemical functionalization, and evaluation of Ag+ sensing properties" in Journal of Materials Chemistry A, 2, no. 22 (2014):8342-8351,
https://doi.org/10.1039/c4ta00264d . .