NDLI: Dendritic platinum-decorated gold nanoparticles for non-enzymatic glucose biosensing.

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Dendritic platinum-decorated gold nanoparticles for non-enzymatic glucose biosensing.

Content Provider	Semantic Scholar
Author	Chen, Kuan Jung Su, Wei-Nien Pan, Chun-Jern Cheng, Shou Yi Rick, John Wang, Shih Han Liu, Chung Chiun Chang, Chun Chao Yang, Yaw Wen Wang, C. H. Hwang, B. J.
Copyright Year	2013
Abstract	A bimetallic amperometric sensor comprising a dendritic Pt shell formed on rod-shaped Au cores (Aurod@Pt) for the rapid estimation of glucose by direct electro-oxidation under physiological conditions is reported. The materials were characterized by XRD, TEM, UV-vis, and cyclic voltammetry. The sensor was constructed by immobilizing Aurod@Pt bimetallic nanoparticles, in a Nafion film, on a glassy carbon electrode (Nafion/Aurod@Pt/GCE). The results showed that Aurod@Pt nanoparticles provided significantly higher sensitivity compared to dendritic Pt. X-ray absorption spectroscopy and X-ray photoelectron spectroscopy suggested that electron transfer, from the Au core to dendritic Pt, resulted in significant enhancement of electrocatalytic activity, due to reduction in Pt absorption of glucose oxidation intermediates and Cl- ions. In addition, Nafion/Aurod@Pt/GCE was found to exhibit a low working potential, fast amperometric response, high sensitivity, good reproducibility, good long term stability, and a high specificity to glucose with negligible interference from uric acid, ascorbic acid, acetamidophenol, or chloride ions.
Starting Page	5925
Ending Page	5932
Page Count	8
File Format	PDF HTM / HTML
DOI	10.1039/c3tb20903b
Alternate Webpage(s)	http://www.rsc.org/suppdata/tb/c3/c3tb20903b/c3tb20903b.pdf
PubMed reference number	32261059
Alternate Webpage(s)	https://doi.org/10.1039/c3tb20903b
Journal	Medline
Volume Number	1
Issue Number	43
Journal	Journal of materials chemistry. B
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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