title: Light-driven topochemical polymerization under organogel conditions of a symmetrical dipeptide-diacetylene system.
abstract: A symmetrical dipeptide-based diacetylene system (DAs) was found to be able to self-assemble in dichloromethane and to form a compact fiber network which resulted in a stable organogel. As a consequence of the organogel formation, we explored the possibility to run a light-induced topochemical polymerization. This is a typical reaction of ordered diacetylene moieties taking advantage from their organized packing mode resulting from fiber formation. Evidence for the generation of peptide-based polydiacetylenes is provided by Raman, UV-Vis, and CD spectroscopies and a set of microscopic techniques. Finally, we succeeded in processing a polymeric composite by use of the electrospinning technique, starting from a mixture of a dipeptide-based diacetylene and polymethyl methacrylate. Copyright © 2016 European Peptide Society and John Wiley & Sons, Ltd.
authors.affiliation: Department of Chemical Sciences, University of Padova, Padova, Italy.
authors.forename: Daniela
authors.initials: D
authors.lastname: Mazzier
authors.affiliation: Department of Chemical Sciences, University of Padova, Padova, Italy.
authors.forename: Dario
authors.initials: D
authors.lastname: Mosconi
authors.affiliation: Department of Chemical Sciences, University of Padova, Padova, Italy.
authors.forename: Giulia
authors.initials: G
authors.lastname: Marafon
authors.affiliation: Department of Forensic Medicine, Xinjiang Medical University, Urumqi, China.
authors.forename: Aikebaier
authors.initials: A
authors.lastname: Reheman
authors.affiliation: Department of Chemical Sciences, University of Padova, Padova, Italy.|Institute of Biomolecular Chemistry, Padova Unit, CNR, Padova, Italy.
authors.forename: Claudio
authors.initials: C
authors.lastname: Toniolo
authors.affiliation: Department of Chemical Sciences, University of Padova, Padova, Italy.|Institute of Biomolecular Chemistry, Padova Unit, CNR, Padova, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Moretto
mesh_terms: D004151:Dipeptides / Q000737:chemistry*; D055664:Electrochemical Techniques; D005782:Gels; D008027:Light; D055668:Photochemical Processes; D000078789:Polyacetylene Polymer; D058105:Polymerization; D011108:Polymers / Q000737:chemistry*; D019904:Polymethyl Methacrylate / Q000737:chemistry*; D053279:Polyynes / Q000737:chemistry*
chemical_list: D004151:Dipeptides; D005782:Gels; D000078789:Polyacetylene Polymer; D011108:Polymers; D053279:Polyynes; C082361:polydiacetylene; D019904:Polymethyl Methacrylate
keywords: organogel; peptide diacetylene; peptide polyacetylene; self-assembly