TY - GEN AU - Haddadi,Azita AU - Farboud,Effat Sadat AU - Erfan,Mohammad AU - Aboofazeli,Reza TI - Preparation and characterization of biodegradable urea-loaded microparticles as an approach for transdermal delivery SN - 0265-2048 PY - 2007///1213 KW - Biodegradation, Environmental KW - Calibration KW - Cellulose KW - analogs & derivatives KW - Delayed-Action Preparations KW - chemistry KW - Drug Carriers KW - Drug Compounding KW - methods KW - Excipients KW - Hydrogen-Ion Concentration KW - Lactic Acid KW - Microscopy, Electron, Scanning KW - Microspheres KW - Particle Size KW - Polyglycolic Acid KW - Polylactic Acid-Polyglycolic Acid Copolymer KW - Polymers KW - Porosity KW - Solvents KW - Spectrophotometry, Ultraviolet KW - Urea KW - Volatilization N1 - Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1080/02652040600789328 ER -