Title

Cysteine-Grafted Chitosan-Mediated Gold Nanoparticle Assembly: From Nanochains To Microcubes

Abstract

Molecule-mediated nanoparticle assemblies were obtained by the rational design and modification of chitosan, and grafting it onto gold nanoparticles, providing a new way for combining the virtues of synthetic and biological polymers. Using thiolate-functionalized chitosan molecules as soft templates, gold nanoparticles were found to self-organize into ID nanochains via specific molecular recognition, or assemble into 2D needle-like crystals and 3D flower clusters through conformational change of the template. Such clusters may further re-crystallize into gold single crystal microcubes by way of a simple dialysis method. The as-prepared nano- and microstructures were characterized and the mechanism for the gold nanoparticle assembly process and microcrystal formation was revealed. This work demonstrates a simple and novel approach for fabricating well defined gold nano- and microstructures through a controlled nanoparticle self-assembly process. © The Royal Society of Chemistry 2009.

Publication Date

2-2-2009

Publication Title

Journal of Materials Chemistry

Volume

19

Issue

6

Number of Pages

795-799

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1039/b816886e

Socpus ID

58849119474 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/58849119474

This document is currently not available here.

Share

COinS