Zdjęcie: Generation of monodisperse particles by using microfluidics: Control over size, shape, and composition

Generation of monodisperse particles by using microfluidics: Control over size, shape, and composition

Herein we describe a versatile new strategy for producing monodisperse solid particles with sizes from 20 to 1000 mm. The method involves the formation of monodisperse liquid droplets by using a microfluidic device and shaping the droplets in a microchannel and then solidifying these drops in situ either by polymerizing a liquid monomer or by lowering the temperature of a liquid that sets thermally. This method has the following features: 1) It produces particles with an exceptionally narrow range of sizes.[1] 2) A new level of control over the shapes of the particles is offered. 3) The mechanism for droplet formation allows the use of a wide variety of materials including gels, metals, polymers, and polymers doped with functional additives. 4) The procedure can be scaled up to produce large numbers of particles.

  • Autor: Xu S, Nie Z, Seo M, Lewis P, Kumacheva E, Stone HA, Garstecki P, Weibel DB, Gitlin I, Whitesides GM
  • Rok: 2005
  • Źródło: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
  • Plik: pobierz

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