SERS titration of 4-mercaptopyridine self-assembled monolayers at   aqueous buffer/gold interfaces

doi:10.1021/ac981131+

CORC > 北京大学 > 化学与分子工程学院

	SERS titration of 4-mercaptopyridine self-assembled monolayers at aqueous buffer/gold interfaces
	Yu, HZ ; Xia, N ; Liu, ZF
刊名	analytical chemistry
	1999
关键词	ENHANCED RAMAN-SCATTERING CHEMICAL FORCE MICROSCOPY CONTACT-ANGLE SURFACE IONIZATION POLYETHYLENE BEHAVIOR ACIDS BASES GOLD
DOI	10.1021/ac981131+
英文摘要	Determination of the surface pK(a) of self-assembled monolayers (SAMs) at aqueous buffer/gold interfaces using surface-enhanced Raman scattering (SERS) measurements, namely, SERS titration, is reported for the first time. From the analysis of pa-dependent SERS spectra of 4-mercaptopyridine monolayers on gold, the pK(1/2) (3.9 +/- 0.2) was determined. By further correlating the surface pH value with die bulk pH value in terms of the Gouy-Chapmann model, the surface pK(a) (5.3 +/- 0.3) was evaluated accordingly. Compared to the conventional contact angle titration, SERS titration has the advantage of giving further insight into the microscopic and dynamic information of the surface-confined functional groups. In addition, such a technique has high sensitivity, micrometer spatial resolution, and chemical selectivity.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000079593900029&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Analytical; SCI(E); EI; PubMed; 74; ARTICLE; 7; 1354-1358; 71
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/202012]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Yu, HZ,Xia, N,Liu, ZF. SERS titration of 4-mercaptopyridine self-assembled monolayers at aqueous buffer/gold interfaces[J]. analytical chemistry,1999.
APA	Yu, HZ,Xia, N,&Liu, ZF.(1999).SERS titration of 4-mercaptopyridine self-assembled monolayers at aqueous buffer/gold interfaces.analytical chemistry.
MLA	Yu, HZ,et al."SERS titration of 4-mercaptopyridine self-assembled monolayers at aqueous buffer/gold interfaces".analytical chemistry (1999).