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Schematic diagram of graphene neural catheter made by LBLC method: (a) The innermost and outermost green layers are the PDA/RGD hybrid layers. The purple layer is a mixed layer of single or multilayer graphene and PCL. The blue layer is a repeat of the graphene and PCL mixed layer. (b) Single or multilayer graphene/PCL nerve catheterization in an SD rat model of sciatic nerve defect. Data reproduced with permission from Ref. [116].
