title: First self-assembly study of betulinic acid, a renewable nano-sized, 6-6-6-6-5 pentacyclic monohydroxy triterpenic acid.
abstract: Self-assembly of betulinic acid, a renewable nano-sized 6-6-6-6-5 pentacyclic triterpenic acid studied in twenty two organic liquids and alcohol-water mixtures showed that it self-assembled in all the liquids studied affording strong gels in nineteen organic liquids and also in alcohol-water mixtures. Optical and electron microscopy and atomic force microscopy studies revealed fibrillar networks having fibers of nano- to micro-metre cross sections and micrometre lengths.
authors.affiliation: Department of Chemistry and Chemical Technology, Vidyasagar University, Midnapore, 721 102, West Bengal, India. braja@mail.vidyasagar.ac.in
authors.forename: Braja Gopal
authors.initials: BG
authors.lastname: Bag
authors.forename: Shib Shankar
authors.initials: SS
authors.lastname: Dash
mesh_terms: D003460:Crystallization / Q000379:methods*; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D053978:Pentacyclic Triterpenes; D013499:Surface Properties; D014315:Triterpenes / Q000138:chemical synthesis*; D000094062:Betulinic Acid
chemical_list: D046911:Macromolecular Substances; D053978:Pentacyclic Triterpenes; D014315:Triterpenes; D000094062:Betulinic Acid