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pH- and thermo-sensitive hydrogels based on chitosan cross-linked with terephthaloyl diazide were synthesized. A new formulation of the polysaccharide modified with taxifolin (dihydroquercetin) was obtained by nucleophylic addition reaction resulting in the formation of urea and urethane bonds with a 1,4-phenylenediamine spacer. Sustained release of the effective agent (flavonoid) upon action of trypsin,...
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