Department of Chemical and Biological Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA.
J Am Chem Soc. 2013 Jul 10;135(27):9972-5. doi: 10.1021/ja4022182. Epub 2013 Apr 19.
We report the use of liquid crystal (LC)-in-water emulsions for the synthesis of either spherical or non-spherical particles with chemically distinct domains located at the poles of the particles. The approach involves the localization of solid colloids at topological defects that form predictably at surfaces of water-dispersed LC droplets. By polymerizing the LC droplets displaying the colloids at their surface defects, we demonstrate formation of both spherical and, upon extraction of the mesogen, anisotropic composite particles with colloids located at either one or both of the poles. Because the colloids protrude from the surfaces of the particles, they also define organized, chemical patches with functionality controlled by the colloid surface.
我们报告了使用液晶（LC）-水乳液来合成具有位于颗粒极处的化学上不同的域的球形或非球形颗粒。该方法涉及将固体胶体定位在可预测地形成于分散在水中的 LC 液滴表面的拓扑缺陷处。通过聚合在其表面缺陷处显示胶体的 LC 液滴，我们证明了球形以及在提取介晶后具有胶体位于一个或两个极处的各向异性复合颗粒的形成。由于胶体从颗粒表面突出，它们还定义了具有由胶体表面控制的功能的有组织的化学斑块。
