TY - GEN AU - Morales,M E AU - Ruiz,M A AU - Oliva,I AU - Oliva,M AU - Gallardo,V TI - Chemical characterization with XPS of the surface of polymer microparticles loaded with morphine SN - 0378-5173 PY - 2007///0504 KW - Analgesics, Opioid KW - chemistry KW - Cellulose KW - analogs & derivatives KW - Chemistry, Pharmaceutical KW - Delayed-Action Preparations KW - Drug Carriers KW - Drug Compounding KW - Micelles KW - Microspheres KW - Morphine KW - Nanotechnology KW - Sensitivity and Specificity KW - Spectrum Analysis KW - methods KW - Surface Properties KW - Technology, Pharmaceutical KW - X-Rays N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1016/j.ijpharm.2006.09.051 ER -