Type I collagen-mediated synthesis of noble metallic nanoparticles networks and the applications in Surface-Enhanced Raman Scattering and electrochemistry

被引：14

作者：

Sun, Yujing ^{[1
,2
]}

Sun, Lanlan ^{[1
,2
]}

Zhang, Baohua ^{[1
,2
]}

Xu, Fugang ^{[1
,2
]}

Liu, Zhelin ^{[1
,2
]}

Guo, Cunlan ^{[1
,2
]}

Zhang, Yue ^{[1
,2
]}

Li, Zhuang ^{[1
]}

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 / 79卷 / 03期

基金：

中国国家自然科学基金;

关键词：

Type I collagen; Template; Noble metallic nanoparticles; Networks; SERS; Electrocatalysis; GOLD NANOPARTICLES; SILVER; DNA; ADSORPTION; NANOSTRUCTURES; REDUCTION; NANOWIRES; JUNCTIONS; FILMS;

D O I：

10.1016/j.talanta.2009.04.027

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In this paper, we demonstrated an effective enviromentally friendly synthesis route to prepare noble metallic (Au, Ag, Pt and Pd) nanoparticles (NPs) networks mediated by type I collagen in the absence of any seeds or surfactants. In the reactions, type I collagen served as stabilizing agent and assembly template for the synthesized metallic NPs. The hydrophobic interaction between collagen and mica interface as well as the hydrogen bonds between inter- and intra-collagen molecules play important roles in the formation of collagen-metallic NPs networks. The noble metallic NPs networks have many advantages in the applications of Surface-Enhanced Raman Scattering (SERS) and electrochemistry detection. Typically, the as-prepared Ag NPs networks reveal great Raman enhancement activity for 4-ATP, and can even be used to detect low concentration of DNA base, adenine. without any label step. Furthermore. the cyclic voltammograms showed Pt NPs networks have good electrocatalytic ability for the reduction of O-2. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：562 / 569

页数：8

共 46 条

[1] Nanostructured magnetic networks [J].