SERS detection of low-concentration adenosine by silver nanoparticles on silicon nanoporous pyramid arrays structure

被引：66

作者：

Zhang, C. ^{[1
]}

Man, B. Y. ^{[1
]}

Jiang, S. Z. ^{[1
,3
]}

Yang, C. ^{[1
]}

Liu, M. ^{[1
]}

Chen, C. S. ^{[1
]}

Xu, S. C. ^{[2
]}

Qiu, H. W. ^{[1
]}

Li, Z. ^{[1
]}

机构：

[1] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China

[2] Dezhou Univ, Coll Phys & Elect Informat, Dezhou 253023, Peoples R China

[3] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

APPLIED SURFACE SCIENCE | 2015年 / 347卷

基金：

中国国家自然科学基金;

关键词：

SERS; Silver; Pyramid; Adenosine; ENHANCED RAMAN-SCATTERING; AG NANOPARTICLES; POROUS SILICON; SURFACE; GRAPHENE; SPECTROSCOPY; MOLECULES; GLUCOSE; H2O2; NANOSTRUCTURES;

D O I：

10.1016/j.apsusc.2015.04.170

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：

A novel surface-enhanced Raman spectroscopy (SERS) substrate based on uniform silver nanoparticles/silicon nanoporous pyramid arrays (Ag/PS) is prepared and SERS behaviors to adenosine are discussed and compared. With a low concentration of 10(-7)M, the characteristic Raman bands of adenosine demonstrate the significantly high SERS sensitivity of the prepared Ag/PS substrate. A reasonable linear correlation is obtained between the intensity of SERS signal and the adenosine concentration from 10(-7) to 10(-7)M in log scale. These results imply that the Ag/PS with regular pyramids array might be an effective substrate for performing label-free sensitive SERS detections of biomolecule. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：668 / 672

页数：5

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