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TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor

Authorized Users Only
2020
Authors
Ognjanović, Miloš
Stanković, Vesna
Knežević, Sara
Antić, Bratislav
Vranješ-Đurić, Sanja
Stanković, Dalibor
Article (Published version)
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Abstract
Herein, we proposed a novel approach and state-of-the-art technology for the improvement of the materials and enzyme immobilization at the electrode surface and construction of impedimetric glucose biosensor. We silanized titanium dioxide nanoparticles using (3-aminopropyl)triethoxysilane (APTES), for the preparation of cross-linked material nanoparticles, with carboxylic graphene. The silanization of titanium dioxide nanoparticles and an increase in electron shuttle was proven feasible when this composite was able to achieve about 30% higher current than non-silanized material. The proposed approach was used for the modification of the printed three-electrode system and the development of the impedimetric glucose biosensor. The material morphology and electrochemical characteristics were confirmed by spectroscopic and electrochemical methods. The present combination effectively modified the electrode surface and serve as a promising basis for the construction of Point-of-Care devices.... Developed biosensor possesses wide operating linear range toward glucose detection from 50 µmol to 1000 µmol, with the limit of detection of 24 µmol. Finally, negligible interference effect and application in the real sample indicate that the proposed mechanism can be successfully applied to the assessment of glucose level in only one drop of real sample.

Keywords:
APTES / Carboxylic graphene / Cross-linking / Impedimetric biosensor / Titanium dioxide
Source:
Microchemical Journal, 2020, 158
Publisher:
  • Elsevier
Funding / projects:
  • Eureka project E! 13303 MED-BIO-TEST

DOI: 10.1016/j.microc.2020.105150

ISSN: 0026-265X

WoS: 000573647400007

Scopus: 2-s2.0-85086377141
[ Google Scholar ]
10
7
URI
https://cherry.chem.bg.ac.rs/handle/123456789/4023
Collections
  • Publikacije
Institution/Community
Hemijski fakultet
TY  - JOUR
AU  - Ognjanović, Miloš
AU  - Stanković, Vesna
AU  - Knežević, Sara
AU  - Antić, Bratislav
AU  - Vranješ-Đurić, Sanja
AU  - Stanković, Dalibor
PY  - 2020
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/4023
AB  - Herein, we proposed a novel approach and state-of-the-art technology for the improvement of the materials and enzyme immobilization at the electrode surface and construction of impedimetric glucose biosensor. We silanized titanium dioxide nanoparticles using (3-aminopropyl)triethoxysilane (APTES), for the preparation of cross-linked material nanoparticles, with carboxylic graphene. The silanization of titanium dioxide nanoparticles and an increase in electron shuttle was proven feasible when this composite was able to achieve about 30% higher current than non-silanized material. The proposed approach was used for the modification of the printed three-electrode system and the development of the impedimetric glucose biosensor. The material morphology and electrochemical characteristics were confirmed by spectroscopic and electrochemical methods. The present combination effectively modified the electrode surface and serve as a promising basis for the construction of Point-of-Care devices. Developed biosensor possesses wide operating linear range toward glucose detection from 50 µmol to 1000 µmol, with the limit of detection of 24 µmol. Finally, negligible interference effect and application in the real sample indicate that the proposed mechanism can be successfully applied to the assessment of glucose level in only one drop of real sample.
PB  - Elsevier
T2  - Microchemical Journal
T1  - TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor
VL  - 158
DO  - 10.1016/j.microc.2020.105150
ER  - 
@article{
author = "Ognjanović, Miloš and Stanković, Vesna and Knežević, Sara and Antić, Bratislav and Vranješ-Đurić, Sanja and Stanković, Dalibor",
year = "2020",
abstract = "Herein, we proposed a novel approach and state-of-the-art technology for the improvement of the materials and enzyme immobilization at the electrode surface and construction of impedimetric glucose biosensor. We silanized titanium dioxide nanoparticles using (3-aminopropyl)triethoxysilane (APTES), for the preparation of cross-linked material nanoparticles, with carboxylic graphene. The silanization of titanium dioxide nanoparticles and an increase in electron shuttle was proven feasible when this composite was able to achieve about 30% higher current than non-silanized material. The proposed approach was used for the modification of the printed three-electrode system and the development of the impedimetric glucose biosensor. The material morphology and electrochemical characteristics were confirmed by spectroscopic and electrochemical methods. The present combination effectively modified the electrode surface and serve as a promising basis for the construction of Point-of-Care devices. Developed biosensor possesses wide operating linear range toward glucose detection from 50 µmol to 1000 µmol, with the limit of detection of 24 µmol. Finally, negligible interference effect and application in the real sample indicate that the proposed mechanism can be successfully applied to the assessment of glucose level in only one drop of real sample.",
publisher = "Elsevier",
journal = "Microchemical Journal",
title = "TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor",
volume = "158",
doi = "10.1016/j.microc.2020.105150"
}
Ognjanović, M., Stanković, V., Knežević, S., Antić, B., Vranješ-Đurić, S.,& Stanković, D.. (2020). TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor. in Microchemical Journal
Elsevier., 158.
https://doi.org/10.1016/j.microc.2020.105150
Ognjanović M, Stanković V, Knežević S, Antić B, Vranješ-Đurić S, Stanković D. TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor. in Microchemical Journal. 2020;158.
doi:10.1016/j.microc.2020.105150 .
Ognjanović, Miloš, Stanković, Vesna, Knežević, Sara, Antić, Bratislav, Vranješ-Đurić, Sanja, Stanković, Dalibor, "TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor" in Microchemical Journal, 158 (2020),
https://doi.org/10.1016/j.microc.2020.105150 . .

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