title: Surface-induced hydrogelation.
abstract: The first azo dye that gels from its aqueous solution was synthesized and its moist hydrogel was investigated with electron microscopy and atomic force microscopy; the anionic azo dye in aqueous solution forms a hydrogel on cationic surfaces even at concentrations 50 times below the minimal gelation concentration.
authors.affiliation: Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum, Stefan-Meier-Str. 21, 79104, Freiburg, Germany.
authors.forename: Arno M
authors.initials: AM
authors.lastname: Bieser
authors.forename: Joerg C
authors.initials: JC
authors.lastname: Tiller
mesh_terms: D020100:Hydrogels / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
chemical_list: D020100:Hydrogels