TY  - DATA
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Ortner, Astrid
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3036
PB  - Springer, New York
T2  - Food Analytical Methods
T1  - Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3036
ER  - 

@misc{
author = "Mehmeti, Eda and Stanković, Dalibor and Ortner, Astrid and Zavašnik, Janez and Kalcher, Kurt",
year = "2017",
publisher = "Springer, New York",
journal = "Food Analytical Methods",
title = "Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3036"
}

Mehmeti, E., Stanković, D., Ortner, A., Zavašnik, J.,& Kalcher, K.. (2017). Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x. in Food Analytical Methods
Springer, New York..
https://hdl.handle.net/21.15107/rcub_cherry_3036

Mehmeti E, Stanković D, Ortner A, Zavašnik J, Kalcher K. Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x. in Food Analytical Methods. 2017;.
https://hdl.handle.net/21.15107/rcub_cherry_3036 .

Mehmeti, Eda, Stanković, Dalibor, Ortner, Astrid, Zavašnik, Janez, Kalcher, Kurt, "Supplementary data for article: Mehmeti, E.; Stanković, D. M.; Ortner, A.; Zavašnik, J.; Kalcher, K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. Food Analytical Methods 2017, 10 (11), 3747–3752. https://doi.org/10.1007/s12161-017-0935-x" in Food Analytical Methods (2017),
https://hdl.handle.net/21.15107/rcub_cherry_3036 .

TY  - DATA
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Chaiyo, Sudkate
AU  - Zavašnik, Janez
AU  - Žagar, Kristina
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3104
PB  - Springer Wien, Wien
T2  - Microchimica Acta
T1  - Supplementary data for article:           Mehmeti, E.; Stanković, D. M.; Chaiyo, S.; Zavasnik, J.; Žagar, K.; Kalcher, K. Wiring of Glucose Oxidase with Graphene Nanoribbons: An Electrochemical Third Generation Glucose Biosensor. Microchimica Acta 2017, 184 (4), 1127–1134. https://doi.org/10.1007/s00604-017-2115-5
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3104
ER  - 

@misc{
author = "Mehmeti, Eda and Stanković, Dalibor and Chaiyo, Sudkate and Zavašnik, Janez and Žagar, Kristina and Kalcher, Kurt",
year = "2017",
publisher = "Springer Wien, Wien",
journal = "Microchimica Acta",
title = "Supplementary data for article:           Mehmeti, E.; Stanković, D. M.; Chaiyo, S.; Zavasnik, J.; Žagar, K.; Kalcher, K. Wiring of Glucose Oxidase with Graphene Nanoribbons: An Electrochemical Third Generation Glucose Biosensor. Microchimica Acta 2017, 184 (4), 1127–1134. https://doi.org/10.1007/s00604-017-2115-5",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3104"
}

Mehmeti, E., Stanković, D., Chaiyo, S., Zavašnik, J., Žagar, K.,& Kalcher, K.. (2017). Supplementary data for article:           Mehmeti, E.; Stanković, D. M.; Chaiyo, S.; Zavasnik, J.; Žagar, K.; Kalcher, K. Wiring of Glucose Oxidase with Graphene Nanoribbons: An Electrochemical Third Generation Glucose Biosensor. Microchimica Acta 2017, 184 (4), 1127–1134. https://doi.org/10.1007/s00604-017-2115-5. in Microchimica Acta
Springer Wien, Wien..
https://hdl.handle.net/21.15107/rcub_cherry_3104

Mehmeti E, Stanković D, Chaiyo S, Zavašnik J, Žagar K, Kalcher K. Supplementary data for article:           Mehmeti, E.; Stanković, D. M.; Chaiyo, S.; Zavasnik, J.; Žagar, K.; Kalcher, K. Wiring of Glucose Oxidase with Graphene Nanoribbons: An Electrochemical Third Generation Glucose Biosensor. Microchimica Acta 2017, 184 (4), 1127–1134. https://doi.org/10.1007/s00604-017-2115-5. in Microchimica Acta. 2017;.
https://hdl.handle.net/21.15107/rcub_cherry_3104 .

Mehmeti, Eda, Stanković, Dalibor, Chaiyo, Sudkate, Zavašnik, Janez, Žagar, Kristina, Kalcher, Kurt, "Supplementary data for article:           Mehmeti, E.; Stanković, D. M.; Chaiyo, S.; Zavasnik, J.; Žagar, K.; Kalcher, K. Wiring of Glucose Oxidase with Graphene Nanoribbons: An Electrochemical Third Generation Glucose Biosensor. Microchimica Acta 2017, 184 (4), 1127–1134. https://doi.org/10.1007/s00604-017-2115-5" in Microchimica Acta (2017),
https://hdl.handle.net/21.15107/rcub_cherry_3104 .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Ortner, Astrid
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2531
AB  - A boron-doped diamond electrode was used as an electrochemical sensor for the determination of phlorizin (aka phloridzin, phlorrhizin) using square wave voltammetry (SWV). Phlorizin (Phl) exhibited a well-defined oxidation peak at +0.9 V (versus Ag/AgCl electrode 3 M KCl) in solutions with a pH value of 6.0. Parameters such as pH value and scan rate were optimized for cyclic voltammetry as well as amplitude and frequency for SWV. The sensor gave excellent response with a wide linear dynamic range for concentrations of phlorizin from 3 to 100 mu M with a detection limit of 0.23 mu M and a good repeatability (+/- 0.9%, n = 7 measurements, c = 10 mu M). The effect of interferences by most common compounds was tested, and the method was successfully applied to the determination of the title compound in apple root extracts and urine samples with satisfactory recovery.
PB  - Springer, New York
T2  - Food Analytical Methods
T1  - Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode
VL  - 10
IS  - 11
SP  - 3747
EP  - 3752
DO  - 10.1007/s12161-017-0935-x
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Ortner, Astrid and Zavašnik, Janez and Kalcher, Kurt",
year = "2017",
abstract = "A boron-doped diamond electrode was used as an electrochemical sensor for the determination of phlorizin (aka phloridzin, phlorrhizin) using square wave voltammetry (SWV). Phlorizin (Phl) exhibited a well-defined oxidation peak at +0.9 V (versus Ag/AgCl electrode 3 M KCl) in solutions with a pH value of 6.0. Parameters such as pH value and scan rate were optimized for cyclic voltammetry as well as amplitude and frequency for SWV. The sensor gave excellent response with a wide linear dynamic range for concentrations of phlorizin from 3 to 100 mu M with a detection limit of 0.23 mu M and a good repeatability (+/- 0.9%, n = 7 measurements, c = 10 mu M). The effect of interferences by most common compounds was tested, and the method was successfully applied to the determination of the title compound in apple root extracts and urine samples with satisfactory recovery.",
publisher = "Springer, New York",
journal = "Food Analytical Methods",
title = "Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode",
volume = "10",
number = "11",
pages = "3747-3752",
doi = "10.1007/s12161-017-0935-x"
}

Mehmeti, E., Stanković, D., Ortner, A., Zavašnik, J.,& Kalcher, K.. (2017). Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. in Food Analytical Methods
Springer, New York., 10(11), 3747-3752.
https://doi.org/10.1007/s12161-017-0935-x

Mehmeti E, Stanković D, Ortner A, Zavašnik J, Kalcher K. Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode. in Food Analytical Methods. 2017;10(11):3747-3752.
doi:10.1007/s12161-017-0935-x .

Mehmeti, Eda, Stanković, Dalibor, Ortner, Astrid, Zavašnik, Janez, Kalcher, Kurt, "Highly Selective Electrochemical Determination of Phlorizin Using Square Wave Voltammetry at a Boron-Doped Diamond Electrode" in Food Analytical Methods, 10, no. 11 (2017):3747-3752,
https://doi.org/10.1007/s12161-017-0935-x . .

TY  - JOUR
AU  - Mehmeti, Eda
AU  - Stanković, Dalibor
AU  - Chaiyo, Sudkate
AU  - Zavašnik, Janez
AU  - Zagar, Kristina
AU  - Kalcher, Kurt
PY  - 2017
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2438
AB  - A reagentless third generation electrochemical glucose biosensor was fabricated based on wiring the template enzyme glucose oxidase (GOx) with graphene nanoribbons (GN) in order to create direct electron transfer between the co-factor (flavin adenine dinucleotide, FAD) and the electrode. The strategy involved: (i) isolation of the apo-enzyme by separating it from its co-enzyme; (ii) preparation of graphene nanoribbons (GN) by oxidative unzipping of multi-walled carbon nanotubes; (iii) adsorptive immobilization of GNs on the surface of a screen printed carbon electrode (SPCE); (iv) covalent attachment of FAD to the nanoribbons; (v) recombination of the apo-enzyme with the covalently bound FAD to the holoenzyme; and (vi) stabilization of the bio-layer with a thin membrane of Nafion. The biosensor (referred to as GN/FAD/apo-GOx/Nafion/SPCE) is operated at a potential of +0.475 V vs Ag/AgCl/{3 M KCl} in flow-injection mode with an oxygen-free phosphate buffer (pH 7.5) acting as a carrier. The signals are linearly proportional to the concentration of glucose in the range from 50 to 2000 mgai...L-1 with a detection limit of 20 mgai...L-1. The repeatability (10 measurements, at 1000 mgai...L-1 glucose) is +/- 1.4% and the reproducibility (5 sensors, 1000 mgai...L-1 glucose) is +/- 1.8%. The biosensor was applied to the determination of glucose in human serum.
PB  - Springer Wien, Wien
T2  - Microchimica Acta
T1  - Wiring of glucose oxidase with graphene nanoribbons: an electrochemical third generation glucose biosensor
VL  - 184
IS  - 4
SP  - 1127
EP  - 1134
DO  - 10.1007/s00604-017-2115-5
ER  - 

@article{
author = "Mehmeti, Eda and Stanković, Dalibor and Chaiyo, Sudkate and Zavašnik, Janez and Zagar, Kristina and Kalcher, Kurt",
year = "2017",
abstract = "A reagentless third generation electrochemical glucose biosensor was fabricated based on wiring the template enzyme glucose oxidase (GOx) with graphene nanoribbons (GN) in order to create direct electron transfer between the co-factor (flavin adenine dinucleotide, FAD) and the electrode. The strategy involved: (i) isolation of the apo-enzyme by separating it from its co-enzyme; (ii) preparation of graphene nanoribbons (GN) by oxidative unzipping of multi-walled carbon nanotubes; (iii) adsorptive immobilization of GNs on the surface of a screen printed carbon electrode (SPCE); (iv) covalent attachment of FAD to the nanoribbons; (v) recombination of the apo-enzyme with the covalently bound FAD to the holoenzyme; and (vi) stabilization of the bio-layer with a thin membrane of Nafion. The biosensor (referred to as GN/FAD/apo-GOx/Nafion/SPCE) is operated at a potential of +0.475 V vs Ag/AgCl/{3 M KCl} in flow-injection mode with an oxygen-free phosphate buffer (pH 7.5) acting as a carrier. The signals are linearly proportional to the concentration of glucose in the range from 50 to 2000 mgai...L-1 with a detection limit of 20 mgai...L-1. The repeatability (10 measurements, at 1000 mgai...L-1 glucose) is +/- 1.4% and the reproducibility (5 sensors, 1000 mgai...L-1 glucose) is +/- 1.8%. The biosensor was applied to the determination of glucose in human serum.",
publisher = "Springer Wien, Wien",
journal = "Microchimica Acta",
title = "Wiring of glucose oxidase with graphene nanoribbons: an electrochemical third generation glucose biosensor",
volume = "184",
number = "4",
pages = "1127-1134",
doi = "10.1007/s00604-017-2115-5"
}

Mehmeti, E., Stanković, D., Chaiyo, S., Zavašnik, J., Zagar, K.,& Kalcher, K.. (2017). Wiring of glucose oxidase with graphene nanoribbons: an electrochemical third generation glucose biosensor. in Microchimica Acta
Springer Wien, Wien., 184(4), 1127-1134.
https://doi.org/10.1007/s00604-017-2115-5

Mehmeti E, Stanković D, Chaiyo S, Zavašnik J, Zagar K, Kalcher K. Wiring of glucose oxidase with graphene nanoribbons: an electrochemical third generation glucose biosensor. in Microchimica Acta. 2017;184(4):1127-1134.
doi:10.1007/s00604-017-2115-5 .

Mehmeti, Eda, Stanković, Dalibor, Chaiyo, Sudkate, Zavašnik, Janez, Zagar, Kristina, Kalcher, Kurt, "Wiring of glucose oxidase with graphene nanoribbons: an electrochemical third generation glucose biosensor" in Microchimica Acta, 184, no. 4 (2017):1127-1134,
https://doi.org/10.1007/s00604-017-2115-5 . .

TY  - JOUR
AU  - Stanković, Dalibor
AU  - Mehmeti, Eda
AU  - Zavašnik, Janez
AU  - Kalcher, Kurt
PY  - 2016
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/2298
AB  - In this work, a comparative study between three different novel synthesized materials, cerium, titanium and selenium dioxide doped reduced graphene oxide, was done toward detection of nitrite in tap water. It was found that best response and analytical performance were achieved with acerium dioxide reduced graphene oxide modified glassy carbon electrode. The materials were synthesized and characterized with transmission electron microscopy (TEM), electrochemical impedance spectroscopy and UV-vis spectroscopy. The prepared electrode has a wide linear range from 0.7 to 385 mu M witha detection of 0.18 mu M using amperometric detection. Various parameters were optimized and the sensor was successfully applied for the nitrite ion quantification in tap water samples. Inclusion of different dopants in the graphene structure for novel materials to modify solid electrodes was found to enhance the catalytic effect toward nitrite detection. (C) 2016 Elsevier B.V. All Rights reserved.
PB  - Elsevier Science Sa, Lausanne
T2  - Sensors and Actuators B: Chemical
T1  - Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes
VL  - 236
SP  - 311
EP  - 317
DO  - 10.1016/j.snb.2016.06.018
ER  - 

@article{
author = "Stanković, Dalibor and Mehmeti, Eda and Zavašnik, Janez and Kalcher, Kurt",
year = "2016",
abstract = "In this work, a comparative study between three different novel synthesized materials, cerium, titanium and selenium dioxide doped reduced graphene oxide, was done toward detection of nitrite in tap water. It was found that best response and analytical performance were achieved with acerium dioxide reduced graphene oxide modified glassy carbon electrode. The materials were synthesized and characterized with transmission electron microscopy (TEM), electrochemical impedance spectroscopy and UV-vis spectroscopy. The prepared electrode has a wide linear range from 0.7 to 385 mu M witha detection of 0.18 mu M using amperometric detection. Various parameters were optimized and the sensor was successfully applied for the nitrite ion quantification in tap water samples. Inclusion of different dopants in the graphene structure for novel materials to modify solid electrodes was found to enhance the catalytic effect toward nitrite detection. (C) 2016 Elsevier B.V. All Rights reserved.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Sensors and Actuators B: Chemical",
title = "Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes",
volume = "236",
pages = "311-317",
doi = "10.1016/j.snb.2016.06.018"
}

Stanković, D., Mehmeti, E., Zavašnik, J.,& Kalcher, K.. (2016). Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes. in Sensors and Actuators B: Chemical
Elsevier Science Sa, Lausanne., 236, 311-317.
https://doi.org/10.1016/j.snb.2016.06.018

Stanković D, Mehmeti E, Zavašnik J, Kalcher K. Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes. in Sensors and Actuators B: Chemical. 2016;236:311-317.
doi:10.1016/j.snb.2016.06.018 .

Stanković, Dalibor, Mehmeti, Eda, Zavašnik, Janez, Kalcher, Kurt, "Determination of nitrite in tap water: A comparative study between cerium, titanium and selenium dioxide doped reduced graphene oxide modified glassy carbon electrodes" in Sensors and Actuators B: Chemical, 236 (2016):311-317,
https://doi.org/10.1016/j.snb.2016.06.018 . .