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Crosslinking of βcyclodextrin (βCD) and hydroxypropyl methylcellulose (HPMC) was mediated by esterification with citric acid. The resulting networks presented high chemical stability in aqueous medium in the pH range from one to nine; pH > 10 led to the hydrolysis of ester bonds. The freeze-dried networks presented pores with size ranging from 10 μm to 200 μm. The amount of βCD bound to the HPMC...
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