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Hematoxylin and eosin staining assessment of the injury sites of (A) Control, (B) CS scaffold, and (C) CS-GO scaffold.
There are a lot of interval spaces in the Control and CS groups; however, the repair tissue grew into the gaps of the material in the CS-GO group. Scale bars: 50 μm. The black arrows point to erythrocytes. CS: Chitosan; CS-GO: graphene oxide-composited chitosan; GO: graphene oxide.
