Fig. 3From: Immobilization of Gelatin onto Poly(Glycidyl Methacrylate)-Grafted Polycaprolactone Substrates for Improved Cell–Material InteractionsWide scan XPS spectra of the a pristine PCL, b PCL-NH2 from 1 h of aminolysis, c PCL-Br, d PCL-g-P(GMA)1 from 1 h of ATRP, e PCL-g-P(GMA)2 from 3 h of ATRP, f PCL-g-P(GMA)1-c-gelatin, and g PCL-g-P(GMA)2-c-gelatin surfacesBack to article page