Preparative Manipulation of Gold Nanoparticles by Reversible Binding to a Polymeric Solid Support

Autor:	Israel Rubinstein, Abraham Shanzer, Alexander Vaskevich, Rina Arad-Yellin, Ovadia Abed
Rok vydání:	2005
Předmět:	inorganic chemicals Nanostructure Organic Chemistry Diol technology industry and agriculture General Chemistry Combinatorial chemistry Catalysis chemistry.chemical_compound chemistry Colloidal gold Organic chemistry Molecule Bifunctional Linker Layer (electronics) Boronic acid
Zdroj:	Chemistry - A European Journal. 11:2836-2841
ISSN:	1521-3765 0947-6539
DOI:	10.1002/chem.200401171
Popis:	A preparative scheme is presented for controlled modification of gold nanoparticles (NPs) by using reversible binding to a polymeric solid support through boronic acid chemistry. Octanethiol-capped Au NPs were bound to a boronic acid functionalized resin by custom-synthesized bifunctional linker molecules. The NPs were chemically released from the resin to the solution, with one (or a few) linker molecules embedded in their capping layer. This was confirmed by rebinding the linker-derivatized NPs to a boronic resin, exploiting the reversibility of the boronic acid/diol chemistry. The same scheme was employed to demonstrate a new method for affinity separation of NPs by means of a solid-phase reaction. The use of boronic acid provides versatility and chemical reversibility, while the polymeric solid support affords the separation and preparative aspects. The method presented here may be useful in various facets of NP handling, manipulation, and separation.
Databáze:	OpenAIRE
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