Aggregation of TPPS on spreading films of achiral cationic amphiphiles: Effect of the charge and rigid spacer on the morphologies and supramolecular chirality

doi:10.1016/j.colsurfa.2005.11.013

CORC > 化学研究所 > 中国科学院化学研究所

	Aggregation of TPPS on spreading films of achiral cationic amphiphiles: Effect of the charge and rigid spacer on the morphologies and supramolecular chirality
	Zhang, Li ; Jiao, Tifeng ; Shao, Xuebin ; Li, Zhanting ; Liu, Minghua
刊名	COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
	2006-08-15
卷号	284 页码:130-134
关键词	Supramolecular Chirality Aggregation Tpps Cationic Amphiphiles
ISSN号	0927-7757
DOI	10.1016/j.colsurfa.2005.11.013
英文摘要	Aggregation of an anionic TPPS (tetrakis(4-sulfonatophenyl)porphine) on the spreading films of cationic amphiphiles containing one, two and four positive charges at the air/water interface were investigated. The positive charge centers in these amphiphiles were separated by a rigid spacer. It was found that TPPS in the subphase could aggregate onto the spreading films as J-aggregate. The complex films formed in situ at the air/water interface could be transferred onto solid substrate by a horizontal lifting method. Although the amphiphiles and the TPPS were achiral, CD signals were detected for the complex films. A possible helical sense of the TPPS stacked in the complex film was suggested to be responsible for the supramolecular chirality of the multilayer films. The charge distributions and spacers have great influence on the CD intensity as well as their split and the surface morphologies. AFM measurements revealed nanofiber structures in the surface morphologies for the complex films of TPPS with amphiphiles having one or two positive charges, while nanorod morphologies were observed for that with four positive charges. It was suggested that the charge centers in the amphiphiles limited the aggregation of TPPS and the interactions between the adjacent J-aggregates. (c) 2005 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000238791800025
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/59537]
专题	中国科学院化学研究所
通讯作者	Liu, Minghua
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Key Lab Colloid & Interface Sci, Beijing 100080, Peoples R China 2.Chinese Acad Sci, Shanghai Inst Organ Chem, State Key Lab Bioorgan & Nat Prod Chem, Shanghai 200032, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Li,Jiao, Tifeng,Shao, Xuebin,et al. Aggregation of TPPS on spreading films of achiral cationic amphiphiles: Effect of the charge and rigid spacer on the morphologies and supramolecular chirality[J]. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,2006,284:130-134.
APA	Zhang, Li,Jiao, Tifeng,Shao, Xuebin,Li, Zhanting,&Liu, Minghua.(2006).Aggregation of TPPS on spreading films of achiral cationic amphiphiles: Effect of the charge and rigid spacer on the morphologies and supramolecular chirality.COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,284,130-134.
MLA	Zhang, Li,et al."Aggregation of TPPS on spreading films of achiral cationic amphiphiles: Effect of the charge and rigid spacer on the morphologies and supramolecular chirality".COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS 284(2006):130-134.