Localized surface plasmon resonance sensor based on Ag-PVA nanocomposite thin films

被引：60

作者：

Gradess, Rachid ^{[1
,2
]}

Abargues, Rafael ^{[1
]}

Habbou, Abderrahim ^{[2
]}

Canet-Ferrer, Josep ^{[1
]}

Pedrueza, Esteban ^{[1
]}

Russell, Aidan ^{[1
]}

Valdes, Jose L. ^{[1
]}

Martinez-Pastor, Juan P. ^{[1
]}

机构：

[1] Univ Valencia, Inst Mat Sci, E-46071 Valencia, Spain

[2] Fac Sci & Tech, Dept Phys, Mohammadia 20800, Morocco

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 48期

关键词：

SILVER NANOPARTICLES; OPTICAL-PROPERTIES; REAL-TIME; GOLD; SIZE; NANOCRYSTALS; SPECTROSCOPY; SENSITIVITY; POLYMER; SHAPE;

D O I：

10.1039/b910020b

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：

In this work we demonstrate the use of nanocomposite thin films of poly(vinyl alcohol) with embedded silver NPs for chemosensing purposes. Silver NPs are in situ synthesized inside polyvinyl alcohol during the bake step of the formation of a nanocomposite thin film. The polymer in the nanocomposite provides an appropriate chemical and electromagnetic environment for metal NPs in order to interact with and hence detect the chemical species. A limit of detection below 20 nM is found when detecting 2-mercaptoethanol as the analyte, when measuring spectral changes (peak wavelength, linewidth and intensity) in the Localized Surface Plasmon Resonance. Potential qualitative and semi-quantitative sensors based on such nanocomposites would be easy-to-prepare, easy-to-use and low-cost, which are the basis of a fully disposable sensing platform technology.

引用

页码：9233 / 9240

页数：8

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