ICCAS OpenIR
Synthesis and Assembly of Gold Nanoparticles in Organized Molecular Films of Gemini Amphiphiles
Zhong, Ling; Hao, Tifeng; Liu, Minghua
2008-10-21
Source PublicationLANGMUIR
ISSN0743-7463
Volume24Issue:20Pages:11677-11683
AbstractGeneration 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.
DOI10.1021/la802338f
Indexed BySCI
Language英语
WOS IDWOS:000260049300049
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:21[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/63794
Collection中国科学院化学研究所
Corresponding AuthorLiu, Minghua
AffiliationCAS, Inst Chem, CAS Key Lab Colloid & Interface Sci, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
Recommended Citation
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.
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