Fabrication of Monodisperse Toroidal Particles by Polymer Solidification in Microfluidics

被引：83

作者：

Wang, Baoguo ^{[1
,2
]}

Shum, Ho Cheung ^{[1
]}

Weitz, David A. ^{[1
,3
]}

机构：

[1] Harvard Univ, Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[2] Tsinghua Univ, Dept Chem Engn, Beijing 100084, Peoples R China

[3] Harvard Univ, Dept Phys, Cambridge, MA 02138 USA

来源：

CHEMPHYSCHEM | 2009年 / 10卷 / 04期

基金：

美国国家科学基金会;

关键词：

colloids; composites; emulsions; particles; polymers; PHASE-SEPARATION; SHAPE; SIZE; MICROPARTICLES; COPOLYMERS; EMULSIONS; DOUGHNUTS; REACTORS; DESIGN;

D O I：

10.1002/cphc.200800786

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

(Figure Presented) 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 tailormade for specific applications such as magnetic actuation. © 2009 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：641 / 645

页数：5

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