Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy

Hua Zhang; Hui-Xin He; Tao Mu; Zhong-Fan Liu

doi:10.1016/S0040-6090(98)00785-8

Author(s)

Hua Zhang
Hui-Xin He
Tao Mu
Zhong-Fan Liu

Detail(s)

Original language	English
Pages (from-to)	778-780
Journal / Publication	Thin Solid Films
Volume	327-329
Publication status	Published - 31 Aug 1998
Externally published	Yes

Link(s)

DOI	DOI https://doi.org/10.1016/S0040-6090(98)00785-8 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-11544276629&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(f82dbdaa-fd6c-44a2-8fcd-fce666f4e547).html

Abstract

Chemical force microscopy (CFM) was used to measure the adhesion force between NH₂-terminated probe tip and gold substrate modified with self-assembled monolayers (SAMs) of 4-aminothiophenol (4-ATP). The curve of adhesion force as a function of solution pH value (force titration curve) was obtained. The pK_1/2 of surface NH₂ group of 4-ATP SAMs obtained from the force titration curve is 5.3, comparable with pK_1/2 · 4.9 determined by the conventional contact angle titration.

Research Area(s)

Adhesion force, Chemical force microscopy, Contact angle titration, Force titration, Self-assembled monolayer, Surface pK1/2 value

Citation Format(s)

[ RIS ] [ BibTeX ]

Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy. / Zhang, Hua; He, Hui-Xin; Mu, Tao; Liu, Zhong-Fan.

In: Thin Solid Films, Vol. 327-329, 31.08.1998, p. 778-780.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

Zhang, H, He, H-X, Mu, T & Liu, Z-F 1998, 'Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy', Thin Solid Films, vol. 327-329, pp. 778-780. https://doi.org/10.1016/S0040-6090(98)00785-8

Zhang, H., He, H-X., Mu, T., & Liu, Z-F. (1998). Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy. Thin Solid Films, 327-329, 778-780. https://doi.org/10.1016/S0040-6090(98)00785-8

Zhang H, He H-X, Mu T, Liu Z-F. Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy. Thin Solid Films. 1998 Aug 31;327-329:778-780. https://doi.org/10.1016/S0040-6090(98)00785-8

Zhang, Hua ; He, Hui-Xin ; Mu, Tao ; Liu, Zhong-Fan. / Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy. In: Thin Solid Films. 1998 ; Vol. 327-329. pp. 778-780.