Synthesis of Silver Nanoparticles with Controllable Surface Charge and Their Application to Surface-Enhanced Raman Scattering

被引:81
作者
Alvarez-Puebla, Ramon A. [1 ]
Aroca, Ricardo F. [1 ]
机构
[1] Univ Windsor, Fac Sci, Mat & Surface Sci Grp, Windsor, ON N9B 3P4, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
AGGREGATION; NANOSTRUCTURES; SPECTROSCOPY; PARTICLES; NANOWIRES; MECHANISM; COLLOIDS; FILMS; ACIDS;
D O I
10.1021/ac8024416
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The objective of the present work was to explore new methods of synthesis of silver nanocolloids using amino acids as reducing agents. The goal of the study was to fabricate nanostructures with controllable surface charge (zeta potential) that may allow optimizing the adsorption of target molecules for ultrasensitive analysis using surface-enhanced Raman scattering (SERS). The average SERS properties of these colloids are tested with two organic analytes and compared with those obtained by using the most commonly used citrate Ag sols.
引用
收藏
页码:2280 / 2285
页数:6
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