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Preparation and characterization of a novel pH-sensitive chitosan-g-poly (acrylic acid)/attapulgite/sodium alginate composite hydrogel bead for controlled release of diclofenac sodium

Biopolymer GelEngineeringAcrylic AcidPolymer SciencePolyelectrolyte GelBiomedical EngineeringPolymer ChemistryNovel Ph-sensitive Chitosan-g-poly