Department of Chemical Engineering and Biotechnology, BP Institute, University of Cambridge, Madingley Road, Cambridge CB3 0EZ, United Kingdom.
Langmuir. 2010 Dec 21;26(24):18676-80. doi: 10.1021/la103331e. Epub 2010 Nov 18.
Colloidosomes have attracted great interest in recent years because of the capability of storage and delivery of useful materials in various fields. In this article, a novel technique for formation of colloidosomes at room temperature suitable for encapsulation of biomaterials was examined. We demonstrate the formation of colloidosomes of 18.0 μm in size at room temperature by adding a small amount of ethanol into the continuous phase of sunflower oil. Poly(methyl methacrylate-co-butyl acrylate) latex particles of 185 nm in size, used in this study, were found to aggregate when ethanol was added to their suspension. We suggest that the shell of the water-core emulsions was locked by the aggregation of latex particles due to the diffusion of ethanol into the aqueous latex suspension.
近年来，由于在各个领域存储和输送有用材料的能力，胶束引起了极大的兴趣。在本文中，研究了一种在室温下形成胶束的新方法，适用于封装生物材料。我们通过向葵花籽油连续相中添加少量乙醇来证明在室温下形成 18.0μm 大小的胶束。研究中使用的 185nm 大小的聚（甲基丙烯酸甲酯-共-丙烯酸丁酯）乳胶粒在添加乙醇时会聚集。我们认为由于乙醇扩散到水乳胶悬浮液中，乳胶粒的聚集使水芯乳液的外壳被锁定。
