Interaction between beta-lactoglobulin and perfluorooctanoate   surfactants: Effect of surfactant counterion

doi:10.1016/j.colsurfa.2006.07.004

CORC > 北京大学 > 化学与分子工程学院

	Interaction between beta-lactoglobulin and perfluorooctanoate surfactants: Effect of surfactant counterion
	Lu, Run-Chao ; Cao, Ao-Neng ; Lai, Lu-Hua ; Xiao, Jin-Xin
刊名	colloids and surfaces a physicochemical and engineering aspects
	2007
关键词	protein-surfactant interaction fluorinated surfactant cooperative interaction circular dichroism fluorescence NMR CONCENTRATED AQUEOUS-SOLUTIONS BOVINE SERUM-ALBUMIN TETRAALKYLAMMONIUM BROMIDES LYSOZYME PROTEIN EQUILIBRIUM MICELLES PHASE
DOI	10.1016/j.colsurfa.2006.07.004
英文摘要	The interaction was investigated between P-lactoglobulin (BLG) and fluorinated surfactants perfluorooctanoate n-C7F15COON(CnH2n+1)4 (n = 0, 1, 2, 3, 4). Circular dichroism and fluorescence were used to monitor the structural changes of protein. Conductivity and F-19 NMR were used to observe the binding and aggregation of surfactant on the protein. The fluorinated surfactants showed strong interaction with BLG. A striking influence of fluorinated surfactant counterions was observed. When the size of counterions increased from NH4+ to N(C3H7)(4)(+), the BLG-perfluorooctanoate surfactants interaction was weakened. However, when the counterion was N(C4H9)(4)(+), the interaction of BLG-C7F15COON(C4H9)(4) was surprisingly enhanced, and was stronger than those of BLG-C7F15COON(CnH2n+1)(4) (n = 1, 2, 3). The unusually strong interaction between BLG and C7F15COON(C4H9)(4) was ascribed to the cooperative binding of C7F15COO- and N(C4H9)(4)(+) onto BLG. (c) 2006 Elsevier B.V. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000243630900024&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Physical; SCI(E); 11; ARTICLE; 2-3; 279-284; 292
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/250407]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Lu, Run-Chao,Cao, Ao-Neng,Lai, Lu-Hua,et al. Interaction between beta-lactoglobulin and perfluorooctanoate surfactants: Effect of surfactant counterion[J]. colloids and surfaces a physicochemical and engineering aspects,2007.
APA	Lu, Run-Chao,Cao, Ao-Neng,Lai, Lu-Hua,&Xiao, Jin-Xin.(2007).Interaction between beta-lactoglobulin and perfluorooctanoate surfactants: Effect of surfactant counterion.colloids and surfaces a physicochemical and engineering aspects.
MLA	Lu, Run-Chao,et al."Interaction between beta-lactoglobulin and perfluorooctanoate surfactants: Effect of surfactant counterion".colloids and surfaces a physicochemical and engineering aspects (2007).