TiO2/APTES cross-linked to carboxylic graphene based impedimetric glucose biosensor
Samo za registrovane korisnike
2020
Autori
Ognjanović, MilošStanković, Vesna
Knežević, Sara
Antić, Bratislav
Vranješ-Đurić, Sanja
Stanković, Dalibor
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
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.
Ključne reči:
APTES / Carboxylic graphene / Cross-linking / Impedimetric biosensor / Titanium dioxideIzvor:
Microchemical Journal, 2020, 158Izdavač:
- Elsevier
Finansiranje / projekti:
- Eureka project E! 13303 MED-BIO-TEST
DOI: 10.1016/j.microc.2020.105150
ISSN: 0026-265X
WoS: 000573647400007
Scopus: 2-s2.0-85086377141
Kolekcije
Institucija/grupa
Hemijski fakultet / Faculty of ChemistryTY - 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 . .