Issue 1, 2007
From the journal:

Journal of Materials Chemistry

Encapsulation and functionalization of nanoparticles in crosslinked resorcinarene shells†

Ramjee Balasubramanian,a   Young-Gil Kwona  and  Alexander Wei*a  

* Corresponding authors

a Department of Chemistry, Purdue University, 560 Oval Drive, West Lafayette, IN, USA

Abstract

Two resorcinarene-derived tetrathiols with terminal alkene sidechains (tetraarylthiol cavitand 3 and tetrabenzylthiol cavitand 4) were determined to be efficient at extracting colloidal gold nanoparticles from aqueous solutions and stabilizing their dispersion in organic solvents. Treatment of these nanoparticle dispersions with the Grubbs olefin metathesis catalyst resulted in crosslinked resorcinarene shells that were highly resistant to alkanethiol-induced desorption at high temperatures. Nanoparticles in crosslinked shells of tetrabenzylthiol cavitand 4 were particularly robust, and could be precipitated and redispersed many times with minimal attrition. These shells could also withstand oxidative conditions and were amenable to synthetic modifications involving epoxidation and dihydroxylation.

Graphical abstract: Encapsulation and functionalization of nanoparticles in crosslinked resorcinarene shells

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Article information

DOI
https://doi.org/10.1039/B614295H
Article type
Paper
Submitted
05 Oct 2006
Accepted
27 Oct 2006
First published
03 Nov 2006

J. Mater. Chem., 2007,17, 105-112

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Encapsulation and functionalization of nanoparticles in crosslinked resorcinarene shells

R. Balasubramanian, Y. Kwon and A. Wei, J. Mater. Chem., 2007, 17, 105 DOI: 10.1039/B614295H

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