Issue 9, 2018

MoS2–Au@Pt nanohybrids as a sensing platform for electrochemical nonenzymatic glucose detection

Abstract

Herein, a nonenzymatic electrochemical biosensor for glucose detection was developed based on an Au@Pt core–shell nanoparticle-decorated MoS2 (MoS2–Au@Pt) nanohybrid. Such designed MoS2-based nanohybrid possessed the advantages of MoS2 nanosheets with a large surface area and noble bimetallic nanoparticles with high catalytic ability, making the MoS2–Au@Pt nanocomposite modified electrode exhibit excellent electrocatalytic activity toward the oxidation of glucose due to their synergistic effect. As expected, the MoS2-based electrochemical biosensor showed a wide linear response over glucose concentration ranging from 10 μM to 3 mM with a low detection limit of 1.08 μM (S/N = 3). Furthermore, the as-prepared electrochemical biosensor also showed excellent selectivity and stability, which could be employed to determine glucose in real samples with acceptable results. The MoS2-Au@Pt nanohybrid could be a promising candidate material for the construction of a high performance sensing platform for chemical/biological molecule detection.

Graphical abstract: MoS2–Au@Pt nanohybrids as a sensing platform for electrochemical nonenzymatic glucose detection

Supplementary files

Article information

Article type
Paper
Submitted
25 Feb 2018
Accepted
14 Mar 2018
First published
15 Mar 2018

New J. Chem., 2018,42, 6750-6755

MoS2–Au@Pt nanohybrids as a sensing platform for electrochemical nonenzymatic glucose detection

S. Su, Z. Lu, J. Li, Q. Hao, W. Liu, C. Zhu, X. Shen, J. Shi and L. Wang, New J. Chem., 2018, 42, 6750 DOI: 10.1039/C8NJ00940F

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