Interaction between the surface of the silver nanoparticles prepared by γ-irradiation and organic molecules containing thiol group

被引：98

作者：

Choi, SH

Lee, SH

Hwang, YM

Lee, KP ^{[1
]}

Kang, HD

机构：

[1] Kyungpook Natl Univ, Grad Sch, Dept Chem, Taegu 702701, South Korea

[2] Kyungpook Natl Univ, Dept Phys, Taegu 702701, South Korea

来源：

RADIATION PHYSICS AND CHEMISTRY | 2003年 / 67卷 / 3-4期

关键词：

interaction; silver colloidal nanoparticles; gamma-irradiation; hydrogen bonding; chiral-enhanced phenomena; circular dichroism spectroscopy;

D O I：

10.1016/S0969-806X(03)00097-5

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：

The colloidal silver nanoparticles were prepared by the gamma-irradiation of silver nitrate (AgNO3) in a mixture solution of water and 2-propanol in the presence of poly(vinylpyrrolidone) as a colloidal stabilizer. The Ag colloids obtained by gamma-irradiation were characterized by use of XRD and TEM. The surface of the Ag colloids were modified by use of mercaptosuccinic acid (MSA), (D)-cysteine (Cys), and (L)-CYS, respectively. The MSA and (L)-Cys-capped Ag colloids were aggregated because of hydrogen bonding of the carboxylic acid and amino acid group, respectively. From the analysis by CD spectroscopy, it was shown that chiral-enhanced phenomena were obtained in (L)- and (D)-Cys-capped Ag colloids. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：517 / 521

页数：5

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