Figure 1.

Electroceuticals consisted of a biodegradable conductive conduit and a wireless electrical stimulator for nonpharmacological peripheral nerve regeneration of long nerve gaps. a) Schematic illustration of a biodegradable and conductive conduit (left) and its application to long nerve gaps with the integration of a wireless stimulator (right). Biodegradable and conductive conduit is composed of an outer tube made of PCL and an inner tube made of a Mo/PCL composite. The stimulating electrode made of stainless steel connected to the RF receiver is attached to the outer tube of the conduit, and the RF receiver and conduit are connected to form a system, which converts the power signal transmitted from the external coil into stimulation through the RF receiver and allows electrical stimulation to be transmitted to the nerves through the stimulating electrode. b) Photograph of a biodegradable CNC with ≈14 mm long outer tube, ≈10 mm long inner tube, and inner diameter of ≈2 mm. (tick mark: 1 mm) c) Cross‐sectional SEM image of biodegradable and CNC (left), SEM image of the inner tube (Mo/PCL composite) (right). d) Photograph of the electroceutical using biodegradable and conductive conduit and wireless electrical stimulator employed in this study.