Metal ion modulated ultrathin films and nanostructures of tyrosine-based bolaamphiphile at the air/water interface

doi:10.1016/j.tsf.2005.12.045

CORC > 化学研究所 > 中国科学院化学研究所

	Metal ion modulated ultrathin films and nanostructures of tyrosine-based bolaamphiphile at the air/water interface
	Jiao, TF ; Cheng, CX ; Xi, F ; Liu, MH
刊名	THIN SOLID FILMS
	2006-05-01
卷号	503 期号:1-2 页码:230-235
关键词	Atomic Force Microscopy Infrared Spectroscopy Langmuir-blodgett Films Surface Morphology
ISSN号	0040-6090
DOI	10.1016/j.tsf.2005.12.045
英文摘要	Supramolecular assemblies at the air/water interface from a newly designed tyrosine-based bolaamphiphile, 1,10-bis(O-L-tyrosine)-decane (C10BT), were investigated. The compound could be spread on water surface and form organized ultrathin film. It was interesting to find that metal ions such as Ag+ and Cu2+ in the subphase can greatly modulate the molecular packing of C10BT and the morphology of the subsequently deposited Langmuir-Blodgett (LB) films. Atomic force microscopic measurements revealed that C10BT LB film from the subphase containing Ag+ ion showed well-ordered layered nanofibers, while Cu2+ ion coordinated C10BT film demonstrated dense cross-linked network. It was suggested that both the strong chelating property to the carboxylate and the different packing mode of hydrocarbon chain resulted in the distinct nanostructures. Fourier transform infrared spectra reveal the difference between the Ag-C10BT complex film and that of Cu2+ ion, and the mechanism of the packing mode of hydrocarbon chain was discussed. Furthermore, the X-ray diffraction and X-ray photoelectron spectra also verified the orderly layer structure and the relative molar ratios compared with different metal ions. While many efforts have been devoted to manipulation of the nanostructures and functions of sophisticated bolaform amphiphiles, we provided a simple method of modulating the organization and morphology of C10BT films through metal ions. (c) 2005 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000236440500034
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/59663]
专题	中国科学院化学研究所
通讯作者	Liu, MH
作者单位	1.CAS, Key Lab Colloid & Interface Sci, Ctr Mol Sci, Inst Chem, Beijing, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Jiao, TF,Cheng, CX,Xi, F,et al. Metal ion modulated ultrathin films and nanostructures of tyrosine-based bolaamphiphile at the air/water interface[J]. THIN SOLID FILMS,2006,503(1-2):230-235.
APA	Jiao, TF,Cheng, CX,Xi, F,&Liu, MH.(2006).Metal ion modulated ultrathin films and nanostructures of tyrosine-based bolaamphiphile at the air/water interface.THIN SOLID FILMS,503(1-2),230-235.
MLA	Jiao, TF,et al."Metal ion modulated ultrathin films and nanostructures of tyrosine-based bolaamphiphile at the air/water interface".THIN SOLID FILMS 503.1-2(2006):230-235.