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Main in vitro results obtained for core-shell (Pectin/Alginate) beads loaded with piroxicam: (a) SEM microphotographs showing the complete and homogeneous alginate shell surrounding the pectin core; (b) Release profiles of mono-layered “only core” (Pectin) beads (-■-) and bi-layered “core-shell” (Pectin/Alginate) beads (-♦-), performed in simulated intestinal fluid by using USP Apparatus 2. Reprinted from [43] with permission from Elsevier. Copyright (2014).
