Fig. 2From: Direct photo-patterning on anthracene containing polymer for guiding stem cell adhesion a Fluorescence spectra change of a PMAn film depending on UV irradiation time, from top of bottom, 0, 1, 2, 3, 4, 5Â min under air. b Normalized FL intensity change of the film at 535Â nm at different dose under air and argon condition. Film thickness: 185Â nmBack to article page