title: Surface and bulk structure of polymeric carriers for bioactive agents: scanning electron microscope study.
mesh_terms: D004337:Drug Carriers; D004800:Enzymes, Immobilized; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D008855:Microscopy, Electron, Scanning; D011092:Polyethylene Glycols; D011108:Polymers
chemical_list: D004337:Drug Carriers; D004800:Enzymes, Immobilized; D011108:Polymers; D020136:Hydrogel, Polyethylene Glycol Dimethacrylate; D011092:Polyethylene Glycols