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Degradation profile (A) and morphological observation of siRNA-loaded sponge either in PBS (B1–B4) or PBS+Lys (B5 and B6). Notes: B1-B4, incubation in PBS for 6, 10, 15 and 28 days respectively; B5 and B6, incubation in PBS+Lys for 6 and 10 days respectively.
Abbreviations: PBS, phosphate-buffered saline; siRNA, small interfering RNA; Lys, lysozyme.
