title: Trilayered polymeric micelle: a newly developed macromolecular assembly that can incorporate hydrophilic compounds.
abstract: We developed a newly developed macromolecular assembly, a trilayered polymeric micelle, which can encapsulate hydrophilic compounds. The optimal condition for preparing a stable w/o emulsion was determined by the evaluation of several factors such as the composition of phase-forming organic solvents and the concentration of an emulsion stabilizer. Then, the trilayered polymeric micelle was prepared under the optimal condition for preparing the stable w/o emulsion. The results of DLS, GPC, (1)H NMR, and fluorescence microscopy suggested that the trilayered polymeric micelle was successfully prepared. It was also clarified that the micelle can encapsulate the model hydrophilic compound, FITC-dextran, into the core of the micelle. The micelle can be expected to incorporate/release compounds effectively by means of the possible optimization of the entanglement of PLA segments forming the shell layer of the micelle. These features strongly suggest that the micelle can have a variety of future applications, especially in medical fields.
authors.affiliation: Department of Organic and Polymer Materials Chemistry, Faculty of Engineering, Tokyo University of Agriculture and Technology, Tokyo, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Uchida
authors.forename: Yoshihiko
authors.initials: Y
authors.lastname: Murakami
mesh_terms: D003911:Dextrans / Q000737:chemistry; D004337:Drug Carriers / Q000737:chemistry; D004655:Emulsions / Q000737:chemistry*; D016650:Fluorescein-5-isothiocyanate / Q000031:analogs & derivatives / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D046911:Macromolecular Substances / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D008823:Micelles; D008856:Microscopy, Fluorescence; D009821:Oils / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D011142:Polyvinyl Alcohol / Q000737:chemistry; D013499:Surface Properties; D014867:Water / Q000737:chemistry
chemical_list: D003911:Dextrans; D004337:Drug Carriers; D004655:Emulsions; D046911:Macromolecular Substances; D008823:Micelles; D009821:Oils; D011108:Polymers; C015219:fluorescein isothiocyanate dextran; C542623:monomethoxypolyethyleneglycol-polylactide block copolymer; D014867:Water; D011092:Polyethylene Glycols; D011142:Polyvinyl Alcohol; D016650:Fluorescein-5-isothiocyanate