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Updated: Jul 1, 2026

A Technique to Functionalize and Self-assemble Macroscopic Nanoparticle-ligand Monolayer Films onto Template-free Substrates
Published on: May 9, 2014
Adhesive Gold Nanoparticles for Easy and Controlled Surface Coating
Tianchi Liu1, Fan Yang2, Xing Wang3
1Department of Chemistry and Chemical Biology, Schaefer School of Engineering and Science , Stevens Institute of Technology , Hoboken , New Jersey 07030 , United States.
Abstract:
Gold nanoparticles (Au NPs) are one of the most important nanomaterials due to their unique properties and broad applications. Among these applications, decorating Au NPs on universal surfaces is highly desired. Herein, we report adhesive Au NPs functionalized by borated dopamine dithiocarbamate. Such Au NPs are nonreactive in colloidal solution but can be activated at an acidic pH to produce adhesive Au NPs and initiate spontaneous surface coating through deprotected catechol-mediated reactions. Easy and controllable surface coating was achieved on materials with distinguished chemical and physical properties because of the high reactivity of catechol. Adhesive Au NPs represent new surface coating method with wide application potentials.
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