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Ultrastructure and rheological evaluation of HA-KLT hydrogels. (A) SEM image of the HA-KLT hydrogel structure. (B) Higher magnification of image of (A) revealed the interior morphology of HA-KLT hydrogel. (C) Storage modulus (G′) and loss modulus (G″), as function of angular frequency for the HA-KLT hydrogel at 37°C. (D) Complex modulus (G*) and complex viscosity (η*) of the HA-KLT hydrogel at 37°C
