Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles

doi:10.1021/la802338f

CORC > 化学研究所 > 中国科学院化学研究所

	Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles
	Zhong, Ling; Hao, Tifeng; Liu, Minghua
刊名	LANGMUIR
	2008-10-21
卷号	24 期号:20 页码:11677-11683
ISSN号	0743-7463
DOI	10.1021/la802338f
英文摘要	Generation and assembly of gold nanostructures were investigated in the organized molecular films of a series of gemini amphiphiles. The chloroauric acid, dissolved in the aqueous subphase, was incorporated into the monolayers of the gemini amphiphiles containing ethyleneamine spacers through an interfacial assembly. The in situ formed complex monolayers were transferred onto solid substrates, and gold nanoparticles were generated in the film by a chemical or photochemical reduction. Discrete gold nanoparticles with an absorption maximum at 550 nm were generated in the films by photoirradiation, while different gold nanostructures were obtained by chemical reduction. Depending on the chemical reductant, various shape and assembly of gold nanostructures were obtained. When reduced by hydroquinone, a tree-branched assembly of the nanoparticles was obtained and the film showed a broad band centered at around 900 nm. When NaBH4 was applied, crooked nanowires or assembly of nanoparticles were obtained, depending on concentration, and the film showed absorption at 569 or 600 nm. Furthermore, by combining the photochemical and chemical reduction methods, i.e., the chloroaurate ion-incorporated film was initially irradiated with UV light and then subjected to chemical reduction, the optical absorption of the formed gold nanostructures can be regulated.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000260049300049
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/63793]
专题	中国科学院化学研究所
通讯作者	Liu, Minghua
作者单位	CAS, Inst Chem, CAS Key Lab Colloid & Interface Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Ling,Hao, Tifeng,Liu, Minghua. Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles[J]. LANGMUIR,2008,24(20):11677-11683.
APA	Zhong, Ling,Hao, Tifeng,&Liu, Minghua.(2008).Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles.LANGMUIR,24(20),11677-11683.
MLA	Zhong, Ling,et al."Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles".LANGMUIR 24.20(2008):11677-11683.