Research by Professor Ian Manners published in Science
25 March 2015
Multidimensional hierarchical self-assembly of amphiphilic cylindrical block comicelles - by Professor Ian Manners with co-authors Huibin Qiu and Zach Hudson
The paper describes making "micelles from micelles" by a hierarchical self-assembly process.
Self-assembly of molecular and block copolymer amphiphiles represents a well-established route to micelles with a wide variety of shapes and gel-like phases. This research demonstrates an analogous process, but on a longer length scale, in which amphiphilic P-H-P and H-P-H cylindrical triblock comicelles with hydrophobic (H) or polar (P) segments that are monodisperse in length are able to self-assemble side by side or end to end in nonsolvents for the central or terminal segments, respectively. This allows the formation of cylindrical supermicelles and one-dimensional (1D) or 3D superstructures that persist in both solution and the solid state. These assemblies possess multiple levels of structural hierarchy in combination with existence on a multimicrometer-length scale, features that are generally only found in natural materials.
Paper - Multidimensional hierarchical self-assembly of amphiphilic cylindrical block comicelles by Huibin Qiu, Zachary Hudson, Mitchell A Winnik and Ian Manners Vol. 347 no. 6228 pp. 1329-1332