Optical response of silver nanoparticles stabilized by amines to LSPR based sensors

被引：17

作者：

Roldan, M. V. ^{[1
]}

Pellegri, N. S. ^{[1
]}

de Sanctis, O. A. ^{[1
]}

机构：

[1] UNR, Inst Fis Rosario, CONICET, RA-2000 Rosario, Santa Fe, Argentina

来源：

11TH INTERNATIONAL CONGRESS ON METALLURGY & MATERIALS SAM/CONAMET 2011 | 2012年 / 1卷

关键词：

nanoparticles; LSPR; sensors;

D O I：

10.1016/j.mspro.2012.06.080

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Silver nanoparticles aminosilane capped were obtained as stable colloids. FTIR spectrum of these nanoparticles showed a strong interaction between amine groups and silver surface, being this property the source of the high stability of the colloidal particles. UV-visible spectrum showed the typical absorption owing the resonance of localized surface plasmon (LSPR). We show that the optical properties of the colloidal nanoparticles were influenced by medium conditions. A continuous shift of the maximum of absorption to longer wavelength was observed with the enhancement of Pb2+ and Cd2+ concentrations. In this way, these nanoparticles can be used as LSPR sensors. (C) 2012 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of SAM/CONAMET 2011, Rosario, Argentina.

引用

页码：594 / 600

页数：7

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