title: A Tri-Stimuli-Responsive Shape-Memory Material Using Host-Guest Interactions as Molecular Switches.
abstract: A thermo-, photo- and chemoresponsive shape-memory material is successfully prepared by introducing α-cyclodextrin (αCD) and azobenzene (Azo) into a poly(acrylate acid)/alginate (PAA/Alg) network. The tri-stimuli-responsive formation/dissociation of αCD-Azo acts as molecular switches freezing or increasing the molecular mobility. The resulting film herein can be processed into temporary shapes as needed and recovers its initial shape upon the application of light irradiation, heating, or chemical agent independently. Furthermore, the agar diffusion test suggests that the α-CD-Alg/Azo-PAA has good biocompatibility for L929 fibroblast-like cells.
authors.affiliation: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
authors.forename: Min
authors.initials: M
authors.lastname: Pan
authors.affiliation: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
authors.forename: Qi-Juan
authors.initials: QJ
authors.lastname: Yuan
authors.affiliation: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
authors.forename: Xiao-Lei
authors.initials: XL
authors.lastname: Gong
authors.affiliation: State Key Laboratory of Polymer Materials Engineering, Polymer Research Institute of Sichuan University, Chengdu, 610065, China.
authors.forename: Sheng
authors.initials: S
authors.lastname: Zhang
authors.affiliation: Key Laboratory of Mountain Ecological Restoration and Bioresource Utilization, Chengdu Institute of Biology, Chinese Academy of Science, Chengdu, 610041, China.
authors.forename: Bang-Jing
authors.initials: BJ
authors.lastname: Li
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry*; D000464:Alginates / Q000737:chemistry*; D000818:Animals; D001391:Azo Compounds / Q000737:chemistry*; D001672:Biocompatible Materials; D002460:Cell Line; D002470:Cell Survival / Q000187:drug effects; D005347:Fibroblasts / Q000166:cytology / Q000187:drug effects / Q000502:physiology; D020723:Glucuronic Acid / Q000737:chemistry; D006603:Hexuronic Acids / Q000737:chemistry; D006358:Hot Temperature; D020100:Hydrogels / Q000737:chemistry* / Q000494:pharmacology / Q000528:radiation effects; D008027:Light; D051379:Mice; D047391:alpha-Cyclodextrins / Q000737:chemistry*
chemical_list: D000180:Acrylic Resins; D000464:Alginates; D001391:Azo Compounds; D001672:Biocompatible Materials; D006603:Hexuronic Acids; D020100:Hydrogels; D047391:alpha-Cyclodextrins; C006903:carbopol 940; D020723:Glucuronic Acid; C009850:azobenzene; C032613:alpha-cyclodextrin
keywords: azobenzene; cyclodextrin; host-guest inclusion; shape-memory