Study of autocatalytic oxidation reaction of silver nanoparticles and the application for nonenzymatic H2O2 assay

被引：11

作者：

Meng, Fanyu ^{[1
,2
]}

Zhu, Xiaoli ^{[1
]}

Miao, Peng ^{[1
,2
]}

机构：

[1] Shanghai Univ, Sch Life Sci, Lab Biosensing Technol, Shanghai 200444, Peoples R China

[2] Chinese Acad Sci, Suzhou Inst Biomed Engn & Technol, CAS Key Lab Biomed Diagnost, Suzhou 215163, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 635卷

基金：

中国国家自然科学基金;

关键词：

HYDROGEN-PEROXIDE; SURFACE; CELLS; ELECTRODE; TECHNOLOGIES; SPECTROSCOPY; SUBSTRATE; MICRORNA;

D O I：

10.1016/j.cplett.2015.06.068

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Autocatalytic oxidation reaction of silver nanoparticles (AgNPs) is studied in the presence of different reagents. Electron transfer between silver atoms on the surface of AgNPs and hydrogen peroxide (H2O2) can enhance the oxidation reaction and AgNPs gradually dissolve. UV-vis absorption spectra of the reaction system can reflect the process and the spectral responses can be applied in the fabrication of a nonenzymatic H2O2 sensor. Two linear detection ranges are obtained, which are rather wide. This nonenzymatic H2O2 sensor also have many advantages such as simple operation, low cost, fast response and excellent selectivity. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：213 / 216

页数：4

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