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Issue 7, 2015
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Control of nanoparticle formation using the constrained dewetting of polymer brushes

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Abstract

We have used coarse-grained molecular dynamics simulations to investigate the use of pinned micelles formed by the constrained dewetting of polymer brushes to act as a template for nanoparticle formation. The evaporation of a thin film containing a dissolved solute from a polymer brush was modeled to study the effect of solubility, concentration, grafting density, and evaporation rate on the nucleation and growth of nanoparticles. Control over particle nucleation could be imposed when the solution was dilute enough such that particle nucleation occurred following the onset of constrained dewetting. We predict that nanoparticles with sizes on the order of 1 nm to 10 nm could be produced from a range of organic molecules under experimentally accessible conditions. This method could allow the functionality of organic materials to potentially be imparted onto surfaces without the need for synthetic modification of the functional molecule, and with control over particle size and aggregation, for application in the preparation of surfaces with useful optical, pharmaceutical, or electronic properties.

Graphical abstract: Control of nanoparticle formation using the constrained dewetting of polymer brushes

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Publication details

The article was received on 15 Dec 2014, accepted on 14 Jan 2015 and first published on 15 Jan 2015


Article type: Communication
DOI: 10.1039/C4NR07412B
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Nanoscale, 2015,7, 2894-2899

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    Control of nanoparticle formation using the constrained dewetting of polymer brushes

    T. Lee, S. C. Hendy and C. Neto, Nanoscale, 2015, 7, 2894
    DOI: 10.1039/C4NR07412B

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