Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance work on Wednesday 27th March 2019 from 11:00 AM to 1:00 PM (GMT).

During this time our website performance may be temporarily affected. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 40, 2013
Previous Article Next Article

Self-assembly of colloidal polymers via depletion-mediated lock and key binding

Author affiliations

Abstract

We study the depletion-induced self-assembly of indented colloids. Using state-of-the-art Monte Carlo simulation techniques that treat the depletant particles explicitly, we demonstrate that colloids assemble by a lock-and-key mechanism, leading to colloidal polymerization. The morphology of the chains that are formed depends sensitively on the size of the colloidal indentation, with smaller values additionally permitting chain branching. In contrast to the case of spheres with attractive patches, Wertheim's thermodynamic perturbation theory fails to provide a fully quantitative description of the polymerization transition. We trace this failure to a neglect of packing effects and we introduce a modified theory that accounts better for the shape of the colloids, yielding improved agreement with simulation.

Graphical abstract: Self-assembly of colloidal polymers via depletion-mediated lock and key binding

Back to tab navigation

Supplementary files

Publication details

The article was received on 05 Jul 2013, accepted on 28 Aug 2013 and first published on 03 Sep 2013


Article type: Paper
DOI: 10.1039/C3SM51839F
Citation: Soft Matter, 2013,9, 9661-9666

  •   Request permissions

    Self-assembly of colloidal polymers via depletion-mediated lock and key binding

    D. J. Ashton, R. L. Jack and N. B. Wilding, Soft Matter, 2013, 9, 9661
    DOI: 10.1039/C3SM51839F

Search articles by author

Spotlight

Advertisements