Chemiluminescence of luminol catalyzed by silver nanoparticles

被引：112

作者：

Chen, Hao ^{[1
]}

Gao, Feng ^{[1
]}

He, Rong ^{[1
]}

Cui, Daxiang ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Res Inst Micro & Nano Sci & Technol, Dept Bionano Sci & Engn, Key Lab Thin Film & Microfabricat,Natl Key NMFT, Shanghai 200030, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2007年 / 315卷 / 01期

关键词：

silver nanoparticles; chemiluminescence; luminol; mechanism;

D O I：

10.1016/j.jcis.2007.06.052

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：

Silver nanoparticles (AgNPs) are synthesized by chemical reduction method and characterized by UV-vis spectra, transmission electron microscopy, and high performance particle sizer. We have found that AgNPs could enhance the chemiluminescence (CL) intensity of luminol-H2O2 system. In this reaction, luminol intermediate is generated under alkaline condition on the surface of AgNPs in luminol-H2O2 system and enhances CL intensity. To validate the reaction mechanism, AgNPs are bound with thioglycolic acid (Ag-HSCH2COOH) and then joined to BSA protein (Ag-BSA). We investigate the CL intensity in the presence of Ag-HSCH2COOH or Ag-BSA comparing with that in the presence of AgNPs and conclude the catalytic reaction take place on the surface of AgNPs. (c) 2007 Elsevier Inc. All rights reserved.

引用

页码：158 / 163

页数：6

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