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A series of pH‐sensitive composite hydrogel beads, carboxymethyl cellulose‐g‐poly(acrylic acid)/attapulgite/sodium alginate (CMC‐g‐PAA/APT/SA), were prepared by combining CMC‐g‐PAA/APT composite and SA, using Ca2+ as the ionic crosslinking agent and diclofenac sodium (DS) as the model drug. The effects of APT content and external pH on the swelling properties and release behaviors of DS from the composite...
Layered double hydroxides (LDHs) are promising materials for the preparation of novel drug delivery matrices. To reveal the interaction between LDHs and polymers, a series of pH‐sensitive sodium alginate/layered double hydroxides (SA/LDHs) hybrid beads were prepared using the simple surface crosslinking method. The SA/LDHs hybrid beads were characterized by FTIR, XRD, and SEM to study their structure...
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