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Fabrication of Monodisperse Toroidal Particles by Polymer Solidification in Microfluidics
Author(s) -
Wang Baoguo,
Shum Ho Cheung,
Weitz David A.
Publication year - 2009
Publication title -
chemphyschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 140
eISSN - 1439-7641
pISSN - 1439-4235
DOI - 10.1002/cphc.200800786
Subject(s) - microfluidics , toroid , dispersity , polymer , materials science , fabrication , nanotechnology , capillary action , anisotropy , composite material , polymer chemistry , optics , physics , plasma , medicine , alternative medicine , pathology , quantum mechanics
Abstract Microdoughnuts: Polymer toroidal particles such as the one shown in the left picture have been prepared by a capillary microfluidic technique. Droplets of polymer solution undergo non‐uniform solidification to form the anisotropic polymer particles. By incorporating functional materials inside the polymer network, functional toroidal particles (center and right images) can be tailor‐made for specific applications such as magnetic actuation.