Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles
Publication type: Journal Article
Publication date: 2014-02-14
scimago Q1
wos Q1
SJR: 0.833
CiteScore: 7.8
Impact factor: 5.3
ISSN: 00263672, 14365073
Analytical Chemistry
Abstract
An electrochemical glucose biosensor was developed by immobilizing glucose oxidase (GOx) on a glass carbon electrode that was modified with molybdenum disulfide (MoS2) nanosheets that were decorated with gold nanoparticles (AuNPs). The electrochemical performance of the modified electrode was investigated by cyclic voltammetry, and it is found that use of the AuNPs-decorated MoS2 nanocomposite accelerates the electron transfer from electrode to the immobilized enzyme. This enables the direct electrochemistry of GOx without any electron mediator. The synergistic effect the MoS2 nanosheets and the AuNPs result in excellent electrocatalytic activity. Glucose can be detected in the concentration range from 10 to 300 μM, and down to levels as low as 2.8 μM. The biosensor also displays good reproducibility and long-term stability, suggesting that it represents a promising tool for biological assays.
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147
Total citations:
147
Citations from 2024:
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(4.79%)
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Shao S. et al. Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles // Microchimica Acta. 2014. Vol. 181. No. 13-14. pp. 1497-1503.
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Shao S., Sun H., Xu F., Yuwen L., Fan C., Wang L. Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles // Microchimica Acta. 2014. Vol. 181. No. 13-14. pp. 1497-1503.
Cite this
RIS
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TY - JOUR
DO - 10.1007/s00604-014-1178-9
UR - https://doi.org/10.1007/s00604-014-1178-9
TI - Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles
T2 - Microchimica Acta
AU - Shao, Su
AU - Sun, Haofan
AU - Xu, Fei
AU - Yuwen, Lihui
AU - Fan, Chunhai
AU - Wang, Lianhui
PY - 2014
DA - 2014/02/14
PB - Springer Nature
SP - 1497-1503
IS - 13-14
VL - 181
SN - 0026-3672
SN - 1436-5073
ER -
Cite this
BibTex (up to 50 authors)
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@article{2014_Shao,
author = {Su Shao and Haofan Sun and Fei Xu and Lihui Yuwen and Chunhai Fan and Lianhui Wang},
title = {Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles},
journal = {Microchimica Acta},
year = {2014},
volume = {181},
publisher = {Springer Nature},
month = {feb},
url = {https://doi.org/10.1007/s00604-014-1178-9},
number = {13-14},
pages = {1497--1503},
doi = {10.1007/s00604-014-1178-9}
}
Cite this
MLA
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Shao, Su, et al. “Direct electrochemistry of glucose oxidase and a biosensor for glucose based on a glass carbon electrode modified with MoS2 nanosheets decorated with gold nanoparticles.” Microchimica Acta, vol. 181, no. 13-14, Feb. 2014, pp. 1497-1503. https://doi.org/10.1007/s00604-014-1178-9.