A quantitative colorimetric assay of H2O2 and glucose using silver nanoparticles induced by H2O2 and UV

被引：0

作者：

Yu Zhang ^{[1
]}

Yan-Jun Zhang ^{[1
]}

Xiao-Dong Xia ^{[1
]}

Xiao-Qi Hou ^{[1
]}

Cheng-Ting Feng ^{[1
]}

Jian-Xiu Wang ^{[1
]}

Liu Deng ^{[1
]}

机构：

[1] College of Chemistry and Chemical Engineering,Central South University

来源：

Chinese Chemical Letters | 2013年 / 24卷 / 12期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Silver nanoparticles; Colorimetric assay; H2O2; Glucose;

D O I：

暂无

中图分类号：

O657.3 [光化学分析法（光谱分析法）];

学科分类号：

070302 ; 081704 ;

摘要：

A simple spectrophotometric assay of H2O2and glucose using Ag nanoparticles has been carried out.Relying on the synergistic effect of H2O2reduction and ultraviolet(UV)irradiation,Ag nanoparticles with enhanced absorption signals were synthesized.H2O2served as a reducing agent in the Ag nanoparticles formation in which Ag+was reduced to Ag0by O2àgenerated via the decomposition of H2O2in alkaline media.On the other hand,photoreduction of Ag+to Ag0under UV irradiations also contributed to the nanoparticles formation.The synthesized nanoparticles were characterized by TEM,XPS,and XRD.The proposed method could determine H2O2with concentrations ranging from 5.0 10à7to 6.0 10à5mol/L.The detection limit was estimated to be 2.0 10à7mol/L.Since the conversion of glucose to gluconic acid catalyzed by glucose oxidase was companied with the formation of H2O2,the sensing protocol has been successfully utilized for the determination of glucose in human blood samples.The results were in good agreement with those determined by a local hospital.This colorimetric sensor thus holds great promises in clinical applications.

引用

页码：1053 / 1058

页数：6

共 10 条

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