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(A) Schematic illustration of the preparation of Gel-ADH/OSA hydrogels. (B) Gelation time, (C) swelling ratio, and (D) SEM images of Gel-ADH/OSA hydrogels with different components and concentrations (scale bar = 100 μm, *p＜0.05, **p ＜ 0.01, n = 3).
