Journal
MICROCHEMICAL JOURNAL
Volume 174, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.microc.2021.107061
Keywords
GO/MWCNT mixture; Au@Pt NPs; Non-enzymatic glucose sensing; Synergistic effect
Categories
Funding
- Key Research and Development Program of Shandong Province, China [2019GSF111047]
- Nat-ural Science Foundation of Shandong Province, China [ZR2020MB075, ZR2019MB019]
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A novel carbon composite integrated with Au@Pt core-shell nanoparticles was developed to detect glucose electrochemically without enzymes, showing a low detection limit and wide linear range. This non-enzymatic glucose sensing platform holds potential for practical applications.
A novel carbon composite was integrated with Au@Pt core-shell nanoparticles (Au@Pt NPs) to construct a sensing interface for enzyme-free electrochemical detection of glucose. As surfactant, graphene oxide (GO) was used to disperse multi-walled carbon nanotubes (MWCNTs). After the glassy carbon electrode (GCE) was modified with the mixture of GO and MWCNTs, the Au@Pt NPs were decorated on it. The prepared novel three-dimensional sensor interface was applied to detect glucose without enzyme at a remarkable negative potential (at about -0.013 V vs. Ag/AgCl), demonstrating a low detection limit (4.2 x 10(-8) M) and two wide linear range from 5 x 10(-8) to 1 x 10(-4) M and 1 x 10(-4) M to 2.5 x 10(-3) M. In addition, the non-enzymatic glucose sensing platform can be realized for practical application.
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