Synthesis, size control and fluorescence studies of gold nanoparticles   in carboxymethylated chitosan aqueous solutions

doi:10.1016/j.jcis.2007.07.039

CORC > 北京大学 > 化学与分子工程学院

	Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions
	Huang, Ling ; Zhai, Maolin ; Peng, Jing ; Xu, Ling ; Li, Jiuqiang ; Wei, Genshuan
刊名	胶体与界面科学杂志
	2007
关键词	gold nanoparticles carboxymethylated chitosan UV light irradiation surface plasmon band fluorescence STABILIZED GOLD UV PHOTOACTIVATION CHITIN DERIVATIVES LASER PHOTOLYSIS MONOLAYER ACID ENHANCEMENT PARTICLES CHEMISTRY RADIATION
DOI	10.1016/j.jcis.2007.07.039
英文摘要	A facile ultraviolet (UV) light irradiation method to synthesize gold nanoparticles (AuNPs) in the alkalic carboxymethylated chitosan (CM-chitosan) solution was first proposed in this paper. CM-chitosan, a water soluble polysaccharide derivative, served as both reducing agent for gold cations and stabilizing agent for AuNPs. The pH, the concentration of HAuCl4 and irradiation time had obvious influence on the size, amount and morphology of AuNPs, which traced by UV-visible spectrometer and high resolution transmission electron microscopy. AuNPs synthesized in this method can be dispersed stably in alkalic CM-chitosan solution for more than 6 months. The possible stability mechanism of AuNPs was discussed based on the change of carboxyl group of CM-chitosan chain with pH and FTIR analyses. XRD pattern confirmed the cubic crystal structure of AuNPs. The fluorescence emission band of AuNPs with an excitation wavelength of 316 nm can be observed at 400 nm, which was affected remarkably by irradiation time and concentration of HAuCl4. (C) 2007 Elsevier Inc. All rights reserved.; Chemistry, Physical; SCI(E); PubMed; 0; ARTICLE; 2; 398-404; 316
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/198137]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Huang, Ling,Zhai, Maolin,Peng, Jing,et al. Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions[J]. 胶体与界面科学杂志,2007.
APA	Huang, Ling,Zhai, Maolin,Peng, Jing,Xu, Ling,Li, Jiuqiang,&Wei, Genshuan.(2007).Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions.胶体与界面科学杂志.
MLA	Huang, Ling,et al."Synthesis, size control and fluorescence studies of gold nanoparticles in carboxymethylated chitosan aqueous solutions".胶体与界面科学杂志 (2007).