TY  - JOUR
AU  - Đurđić, Slađana
AU  - Stanković, Vesna
AU  - Vlahović, Filip
AU  - Ognjanović, Miloš
AU  - Kalcher, Kurt
AU  - Ćirković Veličković, T.
AU  - Mutić, Jelena
AU  - Stanković, Dalibor M.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4523
AB  - Based on graphene nanoplatelets capability to build block composites, as well as well-known electrochemical characteristic of the manganese oxide materials, in the present research, a nanocomposite, formed from graphene nanoplatelets (GNP) and manganese(IV)-oxide (MnO2) nanoparticles, has been proposed as a novel and convenient support for enzyme immobilization. Performance of screen printed carbon electrodes (SPCEs) was significantly improved after their modification with GNP@MnO2 (SPCE/GNP@MnO2). The polyphenolic index biosensor was prepared by applying the drop coating technique using laccase and Nafion®. Developed biosensor shows a fast and reliable amperometric response toward caffeic acid, as a model compound, at operating potential of +0.40 V (vs Ag/AgCl), with a wide linear range and detection limit of 1.9 μmol l-1. Developed procedure was successfully applied for the determination of polyphenolic indexes in wine samples. Recovery tests indicate excellent accuracy and precision of the method, concluding that the biosensor can offer a fast, accurate, reliable and precise determination of the polyphenolic index. More importantly, our results suggest a great potential for the application in real samples. © 2021 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.
PB  - The Electrochemical Society ("ECS").
T2  - Journal of Electrochemical Society
T1  - Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application
VL  - 168
IS  - 3
SP  - 037510
DO  - 10.1149/1945-7111/abeaf2
ER  - 

@article{
author = "Đurđić, Slađana and Stanković, Vesna and Vlahović, Filip and Ognjanović, Miloš and Kalcher, Kurt and Ćirković Veličković, T. and Mutić, Jelena and Stanković, Dalibor M.",
year = "2021",
abstract = "Based on graphene nanoplatelets capability to build block composites, as well as well-known electrochemical characteristic of the manganese oxide materials, in the present research, a nanocomposite, formed from graphene nanoplatelets (GNP) and manganese(IV)-oxide (MnO2) nanoparticles, has been proposed as a novel and convenient support for enzyme immobilization. Performance of screen printed carbon electrodes (SPCEs) was significantly improved after their modification with GNP@MnO2 (SPCE/GNP@MnO2). The polyphenolic index biosensor was prepared by applying the drop coating technique using laccase and Nafion®. Developed biosensor shows a fast and reliable amperometric response toward caffeic acid, as a model compound, at operating potential of +0.40 V (vs Ag/AgCl), with a wide linear range and detection limit of 1.9 μmol l-1. Developed procedure was successfully applied for the determination of polyphenolic indexes in wine samples. Recovery tests indicate excellent accuracy and precision of the method, concluding that the biosensor can offer a fast, accurate, reliable and precise determination of the polyphenolic index. More importantly, our results suggest a great potential for the application in real samples. © 2021 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.",
publisher = "The Electrochemical Society ("ECS").",
journal = "Journal of Electrochemical Society",
title = "Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application",
volume = "168",
number = "3",
pages = "037510",
doi = "10.1149/1945-7111/abeaf2"
}

Đurđić, S., Stanković, V., Vlahović, F., Ognjanović, M., Kalcher, K., Ćirković Veličković, T., Mutić, J.,& Stanković, D. M.. (2021). Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application. in Journal of Electrochemical Society
The Electrochemical Society ("ECS").., 168(3), 037510.
https://doi.org/10.1149/1945-7111/abeaf2

Đurđić S, Stanković V, Vlahović F, Ognjanović M, Kalcher K, Ćirković Veličković T, Mutić J, Stanković DM. Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application. in Journal of Electrochemical Society. 2021;168(3):037510.
doi:10.1149/1945-7111/abeaf2 .

Đurđić, Slađana, Stanković, Vesna, Vlahović, Filip, Ognjanović, Miloš, Kalcher, Kurt, Ćirković Veličković, T., Mutić, Jelena, Stanković, Dalibor M., "Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application" in Journal of Electrochemical Society, 168, no. 3 (2021):037510,
https://doi.org/10.1149/1945-7111/abeaf2 . .

TY  - JOUR
AU  - Đurđić, Slađana
AU  - Stanković, Vesna
AU  - Vlahović, Filip
AU  - Ognjanović, Miloš
AU  - Kalcher, Kurt
AU  - Ćirković Veličković, T.
AU  - Mutić, Jelena
AU  - Stanković, Dalibor M.
PY  - 2021
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/4578
AB  - Based on graphene nanoplatelets capability to build block composites, as well as well-known electrochemical characteristic of the manganese oxide materials, in the present research, a nanocomposite, formed from graphene nanoplatelets (GNP) and manganese(IV)-oxide (MnO2) nanoparticles, has been proposed as a novel and convenient support for enzyme immobilization. Performance of screen printed carbon electrodes (SPCEs) was significantly improved after their modification with GNP@MnO2 (SPCE/GNP@MnO2). The polyphenolic index biosensor was prepared by applying the drop coating technique using laccase and Nafion®. Developed biosensor shows a fast and reliable amperometric response toward caffeic acid, as a model compound, at operating potential of +0.40 V (vs Ag/AgCl), with a wide linear range and detection limit of 1.9 μmol l-1. Developed procedure was successfully applied for the determination of polyphenolic indexes in wine samples. Recovery tests indicate excellent accuracy and precision of the method, concluding that the biosensor can offer a fast, accurate, reliable and precise determination of the polyphenolic index. More importantly, our results suggest a great potential for the application in real samples. © 2021 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.
PB  - The Electrochemical Society ("ECS").
T2  - Journal of Electrochemical Society
T1  - Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application
VL  - 168
IS  - 3
SP  - 037510
DO  - 10.1149/1945-7111/abeaf2
ER  - 

@article{
author = "Đurđić, Slađana and Stanković, Vesna and Vlahović, Filip and Ognjanović, Miloš and Kalcher, Kurt and Ćirković Veličković, T. and Mutić, Jelena and Stanković, Dalibor M.",
year = "2021",
abstract = "Based on graphene nanoplatelets capability to build block composites, as well as well-known electrochemical characteristic of the manganese oxide materials, in the present research, a nanocomposite, formed from graphene nanoplatelets (GNP) and manganese(IV)-oxide (MnO2) nanoparticles, has been proposed as a novel and convenient support for enzyme immobilization. Performance of screen printed carbon electrodes (SPCEs) was significantly improved after their modification with GNP@MnO2 (SPCE/GNP@MnO2). The polyphenolic index biosensor was prepared by applying the drop coating technique using laccase and Nafion®. Developed biosensor shows a fast and reliable amperometric response toward caffeic acid, as a model compound, at operating potential of +0.40 V (vs Ag/AgCl), with a wide linear range and detection limit of 1.9 μmol l-1. Developed procedure was successfully applied for the determination of polyphenolic indexes in wine samples. Recovery tests indicate excellent accuracy and precision of the method, concluding that the biosensor can offer a fast, accurate, reliable and precise determination of the polyphenolic index. More importantly, our results suggest a great potential for the application in real samples. © 2021 The Electrochemical Society ("ECS"). Published on behalf of ECS by IOP Publishing Limited.",
publisher = "The Electrochemical Society ("ECS").",
journal = "Journal of Electrochemical Society",
title = "Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application",
volume = "168",
number = "3",
pages = "037510",
doi = "10.1149/1945-7111/abeaf2"
}

Đurđić, S., Stanković, V., Vlahović, F., Ognjanović, M., Kalcher, K., Ćirković Veličković, T., Mutić, J.,& Stanković, D. M.. (2021). Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application. in Journal of Electrochemical Society
The Electrochemical Society ("ECS").., 168(3), 037510.
https://doi.org/10.1149/1945-7111/abeaf2

Đurđić S, Stanković V, Vlahović F, Ognjanović M, Kalcher K, Ćirković Veličković T, Mutić J, Stanković DM. Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application. in Journal of Electrochemical Society. 2021;168(3):037510.
doi:10.1149/1945-7111/abeaf2 .

Đurđić, Slađana, Stanković, Vesna, Vlahović, Filip, Ognjanović, Miloš, Kalcher, Kurt, Ćirković Veličković, T., Mutić, Jelena, Stanković, Dalibor M., "Laccase Polyphenolic Biosensor Supported on MnO2@GNP Decorated SPCE: Preparation, Characterization, and Analytical Application" in Journal of Electrochemical Society, 168, no. 3 (2021):037510,
https://doi.org/10.1149/1945-7111/abeaf2 . .