Surface-induced hydrogelation.
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.
Bieser
Arno M
AM
Institut für Makromolekulare Chemie und Freiburger Materialforschungszentrum, Stefan-Meier-Str. 21, 79104, Freiburg, Germany.
Tiller
Joerg C
JC
D020100:Hydrogels / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
D020100:Hydrogels