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Main in vitro results obtained for alginate-based aerogel beads loaded with ketoprofen: (a) SEM microphotographs showing the inner nanoporous structure; (b) Release profiles of beads dried by both supercritical-CO2 and conventional drying, performed in simulated gastro-intestinal fluids by using USP Apparatus 2. Reprinted from [208] with permission from Elsevier. Copyright (2012).
