Individual supramolecular host-guest interactions studied by dynamic single molecule force spectroscopy

被引：171

作者：

Schönherr, H

Beulen, MWJ

Bügler, J

Huskens, J

van Veggel, FCJM

Reinhoudt, DN

Vancso, GJ

机构：

[1] Univ Twente, MESA Res Inst, Lab Supramol Chem & Technol, NL-7500 AE Enschede, Netherlands

[2] Univ Twente, Fac Chem Technol, NL-7500 AE Enschede, Netherlands

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2000年 / 122卷 / 20期

关键词：

D O I：

10.1021/ja994040i

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Supramolecular host-guest interactions in aqueous environment were studied by dynamic single molecule force spectroscopy. The unbinding between ferrocene moieties immobilized on atomic force microscopy tips and beta-cyclodextrin receptors in highly ordered self-assembled monolayers on Au(111) was studied. The rupture force of individual ferrocene-beta-cyclodextrin complexes was found to be 56 +/- 10 pN. The value of this unbinding force was independent of the unloading rate. This was attributed to the fast (de)complexation kinetics of the host-guest complex.

引用

页码：4963 / 4967

页数：5

共 33 条

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[Anonymous], 1997, ADV SUPR CH

[2] Amino acid derivatives of beta-cyclodextrin [J].