title: Electroactive organic dye incorporating dipeptides in the formation of self-assembled nanofibrous hydrogels.
abstract: In this study, we examined the self-assembly of four dipeptides conjugated with the electroactive dye naphthalenediimide (NDI). The presence of the NDI group at the N-terminus of Phe-Phe and Phe-Gly promoted the formation of one-dimensional (1-D) nanostructures and three-dimensional (3-D) colored hydrogels under both acidic and physiological conditions. The 1-D nanostructures of these gels were stabilized through intermolecular π-π interactions of the conjugated systems and extended hydrogen bonding of the dipeptide units.
authors.affiliation: Department of Materials Science and Engineering, National Chiao Tung University , Hsinchu, 300, Taiwan, Republic of China.
authors.forename: Yu-Hao
authors.initials: YH
authors.lastname: Liu
authors.forename: Shu-Min
authors.initials: SM
authors.lastname: Hsu
authors.forename: Fang-Yi
authors.initials: FY
authors.lastname: Wu
authors.forename: Hsun
authors.initials: H
authors.lastname: Cheng
authors.forename: Mei-Yu
authors.initials: MY
authors.lastname: Yeh
authors.forename: Hsin-Chieh
authors.initials: HC
authors.lastname: Lin
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D004151:Dipeptides / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D006860:Hydrogen Bonding; D007094:Imides / Q000737:chemistry*; D057139:Nanofibers / Q000737:chemistry* / Q000648:ultrastructure; D009281:Naphthalenes / Q000737:chemistry*
chemical_list: D004396:Coloring Agents; D004151:Dipeptides; D020100:Hydrogels; D007094:Imides; D009281:Naphthalenes; C542131:naphthalenediimide; C026650:phenylalanylphenylalanine; C040500:phenylalanylglycine