Interfacial molecular recognition. Binding of ferrocenecarboxylate to β-aminocyclodextrin hosts electrostatically immobilized on a thioctic acid monolayer

Yun Wang, Angel E. Kaifer

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

The interfacial binding properties of electrodes prepared by the electrostatic immobilization of an adlayer of positively charged β-aminocyclodextrin (β-ACD) hosts on a self-assembled monolayer of thioctic acid on gold were investigated using Osteryoung square wave voltammetry. The results indicate that the water-soluble ferrocenecarboxylate (Fc-COO-) guest was effectively bound by the interfacial β-ACD hosts, with binding constants in the range (2-5) × 104 M-1. The measured binding constants were found to increase slightly with the surface density of immobilized hosts.

Original languageEnglish (US)
Pages (from-to)9922-9927
Number of pages6
JournalJournal of Physical Chemistry B
Volume102
Issue number49
DOIs
StatePublished - Dec 3 1998

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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