TY  - JOUR
AU  - Ognjanović, Miloš
AU  - Stanković, Dalibor M.
AU  - Jović, Milica
AU  - Krstić, Milena P.
AU  - Lesch, Andreas
AU  - Girault, Hubert H.
AU  - Antić, Bratislav
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9082
AB  - Here, we report the design of a disposable single-drop voltammetric sensor for the quantitative determination of antipsychotic drug trifluoperazine (TFP). The sensor was built using inkjet-printed carbon nanotube (CNT) electrodes, which were modified with dimercaptosuccinic acid (DMSA)-coated magnetite nanoparticles uniformly dispersed over reduced graphene oxide nanosheets (DMSA/Fe3O4/RGO). The used modifying materials were characterized by electron microscopy techniques (transmission electron microscopy (TEM) and field emission-scanning electron microscopy (FE-SEM)), X-ray powder diffraction, ζ-potential measurements, dynamic light scattering (DLS), and electrochemical methods (cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)). The developed sensor, best operated at pH 7 in the Britton-Robinson buffer solution (BRBS), shows linear electrocatalytic activity with TFP in the concentration range of 1-50 μM, a low detection limit of 0.54 μM, and excellent selectivity, repeatability, and reproducibility with an relative standard deviation (RSD) of 2.4%. A voltammetric approach using square wave voltammetry (SWV) is a sensitive technique under optimized conditions for the analytical determination of submicromolar amounts of TFP. Bare CNT and RGO- and DMSA/Fe3O4-modified CNT electrodes showed lower electrocatalytic activity than the DMSA/Fe3O4/RGO/CNT electrode. The development of this kind of TFP sensor based on nanoparticle-decorated graphene nanosheets can offer a tool for point-of-care applications as sensors in biomedicine.
T2  - ACS Applied Nano Materials
T1  - Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine
VL  - 3
IS  - 5
SP  - 4654
EP  - 4662
DO  - 10.1021/acsanm.0c00661
ER  - 

@article{
author = "Ognjanović, Miloš and Stanković, Dalibor M. and Jović, Milica and Krstić, Milena P. and Lesch, Andreas and Girault, Hubert H. and Antić, Bratislav",
year = "2020",
abstract = "Here, we report the design of a disposable single-drop voltammetric sensor for the quantitative determination of antipsychotic drug trifluoperazine (TFP). The sensor was built using inkjet-printed carbon nanotube (CNT) electrodes, which were modified with dimercaptosuccinic acid (DMSA)-coated magnetite nanoparticles uniformly dispersed over reduced graphene oxide nanosheets (DMSA/Fe3O4/RGO). The used modifying materials were characterized by electron microscopy techniques (transmission electron microscopy (TEM) and field emission-scanning electron microscopy (FE-SEM)), X-ray powder diffraction, ζ-potential measurements, dynamic light scattering (DLS), and electrochemical methods (cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS)). The developed sensor, best operated at pH 7 in the Britton-Robinson buffer solution (BRBS), shows linear electrocatalytic activity with TFP in the concentration range of 1-50 μM, a low detection limit of 0.54 μM, and excellent selectivity, repeatability, and reproducibility with an relative standard deviation (RSD) of 2.4%. A voltammetric approach using square wave voltammetry (SWV) is a sensitive technique under optimized conditions for the analytical determination of submicromolar amounts of TFP. Bare CNT and RGO- and DMSA/Fe3O4-modified CNT electrodes showed lower electrocatalytic activity than the DMSA/Fe3O4/RGO/CNT electrode. The development of this kind of TFP sensor based on nanoparticle-decorated graphene nanosheets can offer a tool for point-of-care applications as sensors in biomedicine.",
journal = "ACS Applied Nano Materials",
title = "Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine",
volume = "3",
number = "5",
pages = "4654-4662",
doi = "10.1021/acsanm.0c00661"
}

Ognjanović, M., Stanković, D. M., Jović, M., Krstić, M. P., Lesch, A., Girault, H. H.,& Antić, B.. (2020). Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine. in ACS Applied Nano Materials, 3(5), 4654-4662.
https://doi.org/10.1021/acsanm.0c00661

Ognjanović M, Stanković DM, Jović M, Krstić MP, Lesch A, Girault HH, Antić B. Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine. in ACS Applied Nano Materials. 2020;3(5):4654-4662.
doi:10.1021/acsanm.0c00661 .

Ognjanović, Miloš, Stanković, Dalibor M., Jović, Milica, Krstić, Milena P., Lesch, Andreas, Girault, Hubert H., Antić, Bratislav, "Inkjet-Printed Carbon Nanotube Electrodes Modified with Dimercaptosuccinic Acid-Capped Fe3O4Nanoparticles on Reduced Graphene Oxide Nanosheets for Single-Drop Determination of Trifluoperazine" in ACS Applied Nano Materials, 3, no. 5 (2020):4654-4662,
https://doi.org/10.1021/acsanm.0c00661 . .

TY  - JOUR
AU  - Stanković, Dalibor M.
AU  - Ognjanović, Miloš
AU  - Jović, Milica
AU  - Cuplić, Valentina
AU  - Lesch, Andreas
AU  - Girault, Hubert H.
AU  - Gavrović-Jankulović, Marija
AU  - Antić, Bratislav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8342
AB  - A disposable acetaminophen biosensor based on inkjet-printed CNT electrodes (IJPCNT) modified with amidase/cerium dioxide@graphene nanoribbons composite was developed (ACeO2@GNR/IJPCNT). The enzyme amidase A was used for the first time as a recognition element. Inkjet-printed CNT electrodes served as a basis for the construction of a biosensor that enables droplet detection using 5 μL sample volume. The biosensor showed high selectivity, sensitivity, a low detection limit of 0.18 μM and a wide working linear range from 1 to 100 μM. The proposed approach allows fast and reliable detection of acetaminophen in biological fluids with negligible matrix effect and remarkable reproducibility. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim
T2  - Electroanalysis
T1  - Disposable Biosensor Based on Amidase/CeO2/GNR Modified Inkjet‐printed CNT Electrodes‐droplet Based Paracetamol Detection in Biological Fluids for “Point‐of‐care” Applications
VL  - 31
IS  - 8
SP  - 1517
EP  - 1525
DO  - 10.1002/elan.201900129
ER  - 

@article{
author = "Stanković, Dalibor M. and Ognjanović, Miloš and Jović, Milica and Cuplić, Valentina and Lesch, Andreas and Girault, Hubert H. and Gavrović-Jankulović, Marija and Antić, Bratislav",
year = "2019",
abstract = "A disposable acetaminophen biosensor based on inkjet-printed CNT electrodes (IJPCNT) modified with amidase/cerium dioxide@graphene nanoribbons composite was developed (ACeO2@GNR/IJPCNT). The enzyme amidase A was used for the first time as a recognition element. Inkjet-printed CNT electrodes served as a basis for the construction of a biosensor that enables droplet detection using 5 μL sample volume. The biosensor showed high selectivity, sensitivity, a low detection limit of 0.18 μM and a wide working linear range from 1 to 100 μM. The proposed approach allows fast and reliable detection of acetaminophen in biological fluids with negligible matrix effect and remarkable reproducibility. © 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim",
journal = "Electroanalysis",
title = "Disposable Biosensor Based on Amidase/CeO2/GNR Modified Inkjet‐printed CNT Electrodes‐droplet Based Paracetamol Detection in Biological Fluids for “Point‐of‐care” Applications",
volume = "31",
number = "8",
pages = "1517-1525",
doi = "10.1002/elan.201900129"
}

Stanković, D. M., Ognjanović, M., Jović, M., Cuplić, V., Lesch, A., Girault, H. H., Gavrović-Jankulović, M.,& Antić, B.. (2019). Disposable Biosensor Based on Amidase/CeO2/GNR Modified Inkjet‐printed CNT Electrodes‐droplet Based Paracetamol Detection in Biological Fluids for “Point‐of‐care” Applications. in Electroanalysis, 31(8), 1517-1525.
https://doi.org/10.1002/elan.201900129

Stanković DM, Ognjanović M, Jović M, Cuplić V, Lesch A, Girault HH, Gavrović-Jankulović M, Antić B. Disposable Biosensor Based on Amidase/CeO2/GNR Modified Inkjet‐printed CNT Electrodes‐droplet Based Paracetamol Detection in Biological Fluids for “Point‐of‐care” Applications. in Electroanalysis. 2019;31(8):1517-1525.
doi:10.1002/elan.201900129 .

Stanković, Dalibor M., Ognjanović, Miloš, Jović, Milica, Cuplić, Valentina, Lesch, Andreas, Girault, Hubert H., Gavrović-Jankulović, Marija, Antić, Bratislav, "Disposable Biosensor Based on Amidase/CeO2/GNR Modified Inkjet‐printed CNT Electrodes‐droplet Based Paracetamol Detection in Biological Fluids for “Point‐of‐care” Applications" in Electroanalysis, 31, no. 8 (2019):1517-1525,
https://doi.org/10.1002/elan.201900129 . .

TY  - JOUR
AU  - Stanković, Dalibor M.
AU  - Jović, Milica
AU  - Ognjanović, Miloš
AU  - Lesch, Andreas
AU  - Fabian, Martin
AU  - Girault, Hubert H.
AU  - Antić, Bratislav
PY  - 2019
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/8394
AB  - An electrochemical sensor is described for the determination of L-dopa (levodopa; 3,4-dihydroxyphenylalanine). An inkjet-printed carbon nanotube (IJPCNT) electrode was modified with manganese dioxide microspheres by drop-casting. They coating was characterized by field emission scanning electron microscopy, Fourier-transform infrared spectroscopy and X-ray powder diffraction. The sensor, best operated at a working voltage of 0.3 V, has a linear response in the 0.1 to 10 μM L-dopa concentration range, a 54 nM detection limit, excellent reproducibility, repeatability and selectivity. The amperometric approach was applied to the determination of L-dopa in spiked biological fluids and displayed satisfactory accuracy and precision. [Figure not available: see fulltext.]. © 2019, Springer-Verlag GmbH Austria, part of Springer Nature.
T2  - Microchimica Acta
T1  - Point-of-care amperometric determination of L-dopa using an inkjet-printed carbon nanotube electrode modified with dandelion-like MnO2 microspheres
VL  - 186
IS  - 8
SP  - 532
DO  - 10.1007/s00604-019-3644-x
ER  - 

@article{
author = "Stanković, Dalibor M. and Jović, Milica and Ognjanović, Miloš and Lesch, Andreas and Fabian, Martin and Girault, Hubert H. and Antić, Bratislav",
year = "2019",
abstract = "An electrochemical sensor is described for the determination of L-dopa (levodopa; 3,4-dihydroxyphenylalanine). An inkjet-printed carbon nanotube (IJPCNT) electrode was modified with manganese dioxide microspheres by drop-casting. They coating was characterized by field emission scanning electron microscopy, Fourier-transform infrared spectroscopy and X-ray powder diffraction. The sensor, best operated at a working voltage of 0.3 V, has a linear response in the 0.1 to 10 μM L-dopa concentration range, a 54 nM detection limit, excellent reproducibility, repeatability and selectivity. The amperometric approach was applied to the determination of L-dopa in spiked biological fluids and displayed satisfactory accuracy and precision. [Figure not available: see fulltext.]. © 2019, Springer-Verlag GmbH Austria, part of Springer Nature.",
journal = "Microchimica Acta",
title = "Point-of-care amperometric determination of L-dopa using an inkjet-printed carbon nanotube electrode modified with dandelion-like MnO2 microspheres",
volume = "186",
number = "8",
pages = "532",
doi = "10.1007/s00604-019-3644-x"
}

Stanković, D. M., Jović, M., Ognjanović, M., Lesch, A., Fabian, M., Girault, H. H.,& Antić, B.. (2019). Point-of-care amperometric determination of L-dopa using an inkjet-printed carbon nanotube electrode modified with dandelion-like MnO2 microspheres. in Microchimica Acta, 186(8), 532.
https://doi.org/10.1007/s00604-019-3644-x

Stanković DM, Jović M, Ognjanović M, Lesch A, Fabian M, Girault HH, Antić B. Point-of-care amperometric determination of L-dopa using an inkjet-printed carbon nanotube electrode modified with dandelion-like MnO2 microspheres. in Microchimica Acta. 2019;186(8):532.
doi:10.1007/s00604-019-3644-x .

Stanković, Dalibor M., Jović, Milica, Ognjanović, Miloš, Lesch, Andreas, Fabian, Martin, Girault, Hubert H., Antić, Bratislav, "Point-of-care amperometric determination of L-dopa using an inkjet-printed carbon nanotube electrode modified with dandelion-like MnO2 microspheres" in Microchimica Acta, 186, no. 8 (2019):532,
https://doi.org/10.1007/s00604-019-3644-x . .