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Issue 38, 2013

Giant hollow fiber formation through self-assembly of oppositely charged polyelectrolyte brushes and gold nanoparticles

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Abstract

We report on the use of binary mixtures of oppositely charged gold nanoparticles (AuNPs) and spherical polyelectrolyte brushes (SPBs), consisting of a polystyrene core onto which long polystyrene sulfonate chains are grafted, as a simple model system to investigate the influence of directional interactions on self-assembly. We demonstrate that the mixing ratio, i.e., the number of AuNPs per SPB, has a profound influence on self-assembly. In particular we report on the formation of giant hollow fibers, and present a thorough characterization of these nanostructures. We speculate that the adsorption of a few AuNPs on the SPBs appears to direct the tubular self-assembly, and discuss the analogy to the case of modified proteins such as tubulin under the action of nucleotides.

Graphical abstract: Giant hollow fiber formation through self-assembly of oppositely charged polyelectrolyte brushes and gold nanoparticles

Supplementary files

Article information


Submitted
30 Apr 2013
Accepted
25 Jun 2013
First published
26 Jun 2013

Soft Matter, 2013,9, 9111-9118
Article type
Paper

Giant hollow fiber formation through self-assembly of oppositely charged polyelectrolyte brushes and gold nanoparticles

J. J. Crassous, P. Millard, A. M. Mihut, A. Wittemann, M. Drechsler, M. Ballauff and P. Schurtenberger, Soft Matter, 2013, 9, 9111 DOI: 10.1039/C3SM51200B

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