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

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

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....

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Main Authors: Mu, Tao, Liu, Zhong-Fan, Zhang, Hua, He, Hui-Xin
Other Authors: School of Materials Science & Engineering
Format: Article
Language:English
Published: 2012
Subjects:
DRNTU::Science::Chemistry
Online Access:https://hdl.handle.net/10356/95686
http://hdl.handle.net/10220/8335
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Institution: Nanyang Technological University
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spelling sg-ntu-dr.10356-956862023-07-14T15:54:00Z Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy Mu, Tao Liu, Zhong-Fan Zhang, Hua He, Hui-Xin School of Materials Science & Engineering DRNTU::Science::Chemistry 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 pK1/2 of surface NH2 group of 4-ATP SAMs obtained from the force titration curve is 5.3, comparable with pK1/2=4.9 determined by the conventional contact angle titration. Accepted version 2012-07-13T04:45:32Z 2019-12-06T19:19:51Z 2012-07-13T04:45:32Z 2019-12-06T19:19:51Z 1998 1998 Journal Article 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://hdl.handle.net/10356/95686 http://hdl.handle.net/10220/8335 10.1016/S0040-6090(98)00785-8 en Thin solid films © 1998 Elsevier. This is the author created version of a work that has been peer reviewed and accepted for publication by Thin Solid Films, Elsevier. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1016/S0040-6090(98)00785-8. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Science::Chemistry
spellingShingle DRNTU::Science::Chemistry
Mu, Tao
Liu, Zhong-Fan
Zhang, Hua
He, Hui-Xin
Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
description 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 pK1/2 of surface NH2 group of 4-ATP SAMs obtained from the force titration curve is 5.3, comparable with pK1/2=4.9 determined by the conventional contact angle titration.
author2 School of Materials Science & Engineering
author_facet School of Materials Science & Engineering
Mu, Tao
Liu, Zhong-Fan
Zhang, Hua
He, Hui-Xin
format Article
author Mu, Tao
Liu, Zhong-Fan
Zhang, Hua
He, Hui-Xin
author_sort Mu, Tao
title Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
title_short Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
title_full Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
title_fullStr Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
title_full_unstemmed Force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
title_sort force titration of amino group-terminated self-assembled monolayers of 4-aminothiophenol on gold using chemical force microscopy
publishDate 2012
url https://hdl.handle.net/10356/95686
http://hdl.handle.net/10220/8335
_version_ 1772828623771795456

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