Fabrication of Au Nanowire/Pichia pastoris Cell Composites with Hexadecyltrimethylammonium Bromides as a Platform for SERS Detection: A Microorganism-Mediated Approach

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	Fabrication of Au Nanowire/Pichia pastoris Cell Composites with Hexadecyltrimethylammonium Bromides as a Platform for SERS Detection: A Microorganism-Mediated Approach
	Wang, Miao ; Kong, Tao ; Jing, Xiaolian ; Hung, Yu-Kao ; Sun, Daohua ; Lin, Liqin ; Zheng, Yanmei ; Huang, Jiale ; Li, Qingbiao ; Li QB(李清彪)
刊名	http://dx.doi.org/10.1021/ie3026604
	2012-12-26
关键词	GOLD NANOWIRES SINGLE-CRYSTALLINE CHEMICAL-SYNTHESIS FACILE SYNTHESIS NANORODS NANOPARTICLES NANOCRYSTALS ULTRATHIN ORGANIZATION TEMPLATE
英文摘要	Fundamental Research Funds for Central Universities [2010121051]; NSFC [21106117, 21036004, 20976146]; Research Fund for the Doctoral Program of Higher Education of China [20100121110032, 20110121120018]; NSF-Fujian [2010J05032]; Au nanowire/Pichia pastoris cell composites were prepared using a microorganism-mediated method, where closely packed Au nanowires (AuNWs) are synthesized at high yields in the presence of hexadecyltrimethylammonium bromide (CTAB) without auxiliary seeds. The initial concentrations of ascorbic acid (AA), CTAB, and tetrachloroaurate trihydrate, as well as the amount of Pichia pastoris cells (PPCs), were optimized for the formation of AuNWs. For the formation of AuNWs, Au(III) ions were initially bound by the PPCs and then reduced by AA to produce Au nanoparticles (AuNPs) via preferential nucleation. The linear fusion of these AuNPs influenced by CTAB resulted in the formation of growing AuNWs, whereas the secondary nucleation beyond the PPCs produced small AuNPs that were subsequently consumed through Ostwald ripening during the aging of AuNWs. These AuNW/PPCs composites could be effectively used as surface-enhanced Raman scattering substrates for the detection of rhodamine 6G.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/62218]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Wang, Miao,Kong, Tao,Jing, Xiaolian,et al. Fabrication of Au Nanowire/Pichia pastoris Cell Composites with Hexadecyltrimethylammonium Bromides as a Platform for SERS Detection: A Microorganism-Mediated Approach[J]. http://dx.doi.org/10.1021/ie3026604,2012.
APA	Wang, Miao.,Kong, Tao.,Jing, Xiaolian.,Hung, Yu-Kao.,Sun, Daohua.,...&李清彪.(2012).Fabrication of Au Nanowire/Pichia pastoris Cell Composites with Hexadecyltrimethylammonium Bromides as a Platform for SERS Detection: A Microorganism-Mediated Approach.http://dx.doi.org/10.1021/ie3026604.
MLA	Wang, Miao,et al."Fabrication of Au Nanowire/Pichia pastoris Cell Composites with Hexadecyltrimethylammonium Bromides as a Platform for SERS Detection: A Microorganism-Mediated Approach".http://dx.doi.org/10.1021/ie3026604 (2012).