Gold nanowire assembling architecture for H2O2 electrochemical sensor

被引：111

作者：

Guo, Shaojun ^{[1
,2
]}

Wen, Dan ^{[1
,2
]}

Dong, Shaojun ^{[1
,2
]}

Wang, Erkang ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Electroanalyt Chem, Changchun 130022, Jilin, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

来源：

TALANTA | 2009年 / 77卷 / 04期

基金：

美国国家科学基金会;

关键词：

Electrochemical sensor; Nanomaterial; Hierarchical; Self-assembly; Gold nanowire; HORSERADISH-PEROXIDASE; HYDROGEN-PEROXIDE; CITRATE REDUCTION; NANOPARTICLES; BIOSENSOR; CHEMILUMINESCENCE; FACILE; ARRAYS;

D O I：

10.1016/j.talanta.2008.09.042

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Morphological control of nanomaterials is of great interest due to their size and shape-dependent chemical and physical properties and very important applications in many fields such as biomedicine, sensors, electronics and others. In this paper, we reported a simple strategy for synthesizing gold nanowire assembling architecture at room temperature. It is found that two important factors, the proper volume ratio of ethanol to water and poly(vinyl pyrrolidone) (PVP), will play important roles in synthesizing flower-like short gold nanowire assembling spheres. Furthermore, the obtained flower-like gold assembling spheres with high surface-to-volume ratio have been employed as enhancing materials for electrochemical sensing H2O2. The present electrochemical sensing platform exhibited good electrocatalytic activity towards the reduction of H2O2. The detection limit for H2O2 was found to be 1.2 mu M, which was lower than certain enzyme-based biosensors. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1510 / 1517

页数：8

共 38 条

[1] Surfactant selective synthesis of gold nanowires by using a DPPC-surfactant mixture as a capping agent at ambient conditions [J].