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Literature DB >> 23519474

Comparative Study of the Binding of Concanavalin A to Self-Assembled Monolayers Containing a Thiolated α-Mannoside on Flat Gold and on Nanoporous Gold.

Binod Pandey¹, Yih Horng Tan, Kohki Fujikawa, Alexei V Demchenko, Keith J Stine.

Abstract

We have prepared SAMs containing 8-mercaptooctyl α-D-mannopyranoside, either as a single component or in mixed SAMs with n-octanethiol on flat gold surfaces and on nanoporous gold. Electrochemical impedance spectroscopy showed that the mixed SAMs on flat gold surfaces showed the highest Con A binding near 1:9 solution molar ratio of thiolatedα-mannoside to n-octanethiol whereas those on NPG showed the highest response at 1:19 solution molar ratio of thiolated α-mannoside to n-octanethiol. Atomic force microscopy was employed to image the monolayers, and also to image the bound Con A protein.

Entities: Chemical Disease Species

Keywords: 8-mercaptooctylα-D-mannopyranoside; Atomic Force Microscopy; Concanavalin A; Electrochemical Impedance Spectroscopy; Lectin; Nanoporous gold; Scanning Electron Microscopy; Self-assembled monolayer

Year: 2012 PMID： 23519474 PMCID： PMC3601678 DOI： 10.1080/07328303.2012.683909

Source DB: PubMed Journal: J Carbohydr Chem ISSN： 0732-8303 Impact factor: 1.667

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