Anomalous dispersions of ‘hedgehog’ particles

Joong Hwan Bahng, Bongjun Yeom, Yichun Wang, Siu On Tung, J. Damon Hoff and Nicholas Kotov ()
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Joong Hwan Bahng: University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
Bongjun Yeom: University of Michigan, 3074 H.H. Dow Building, 2300 Hayward Street, Ann Arbor, Michigan 48109, USA
Yichun Wang: University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA
Siu On Tung: Macromolecular Science and Engineering Program, University of Michigan, 3062C H.H. Dow Building, 2300 Hayward Street, Ann Arbor, Michigan 48109, USA
J. Damon Hoff: Single Molecule Analysis in Real Time (SMART) Center
Nicholas Kotov: University of Michigan, 1107 Carl A. Gerstacker Building, 2200 Bonisteel Boulevard, Ann Arbor, Michigan 48109, USA

Nature, 2015, vol. 517, issue 7536, 596-599

Abstract: Micrometre-sized particles covered with stiff, nanoscale spikes are shown to exhibit long-term colloidal stability in both hydrophilic and hydrophobic media, without the need for chemical coating, owing to the effect of the spikes on the contact area and, consequently, the force between the particles.

Date: 2015
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DOI: 10.1038/nature14092

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