Formation and Function of Nano- and Microstructures by the Self-assembly of Cyclic Oligosaccharides ‘Cyclodextrins’

Abstract

Recently, much attention has been paid to studies on nano- and microstructures formed by the self-assembly of cyclodextrins (CDs) in the fields of supramolecular chemistry and material science. CDs can adopt various types of assembly modes in aqueous solution, as well as crystal structures. Channel-type assemblies of ?-CD (?-CDchannel) formed unique micrometer-sized cubes and rods. By using ?-CDchannelas a host, the inclusion of guest molecules dissolved in oils, which has been believed to be impossible, can be realized. Furthermore, ?-CDchannelshowed excellent oil dispersion, and formed organogels in a variety of oils and organic solvents at ambient temperature. This article reviews the formation behavior and function of nano- and microstructures formed by the self-assembly of CDs. © 2011, FCCA(Forum: Carbohydrates Coming of Age). All rights reserved.