Jump to main content
Jump to site search

Volume 186, 2016
Previous Article Next Article

Magnetic filament brushes: tuning the properties of a magnetoresponsive supracolloidal coating

Author affiliations


We present a theoretical study on the design of a supramolecular magnetoresponsive coating. The coating is formed by a relatively dense array of supracolloidal magnetic filaments grafted to a surface in a polymer brush-like arrangement. In order to determine and optimise the properties of the magnetic filament brush, we perform extensive computer simulations with a coarse-grained model that takes into account the correlations between the magnetic moments of the particles and the backbone crosslinks. We show that the self-assembly of magnetic beads from neighbouring filaments defines the equilibrium structural properties of the complete brush. In order to control this self-assembly, we highlight two external stimuli that can lead to significant effects: temperature of the system and an externally applied magnetic field. Our study reveals self-assembly scenarios inherently driven by the crosslinking and grafting constraints. Finally, we explain the mechanisms of structural changeovers in the magnetic filament brushes and confirm the possibility of controlling them by changing the temperature or the intensity of an external magnetic field.

Back to tab navigation

Publication details

The article was received on 01 Sep 2015, accepted on 28 Oct 2015 and first published on 28 Oct 2015

Article type: Paper
DOI: 10.1039/C5FD00133A
Author version
Download author version (PDF)
Citation: Faraday Discuss., 2016,186, 241-263
  •   Request permissions

    Magnetic filament brushes: tuning the properties of a magnetoresponsive supracolloidal coating

    P. A. Sánchez, E. S. Pyanzina, E. V. Novak, J. J. Cerdà, T. Sintes and S. S. Kantorovich, Faraday Discuss., 2016, 186, 241
    DOI: 10.1039/C5FD00133A

Search articles by author