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Preparation and characterization of CMC/HA-DA hydrogels. a. Composite schematic diagram of HA-DA. b.1H NMR data of HA and HA-DA. c. Ultraviolet spectra of HA, DA, and HA-DA. d. Infrared spectra of HA, DA, and HA-DA. e. Rheological behavior of the hydrogel. f. Intuitive diagram of the hydrogel formation process. g. Internal microstructure of hydrogels. h. Schematic diagram of hydrogel gelation principle.
