Review on electrically conductive smart nerve guide conduit for peripheral nerve regeneration

Area of Science:

• Biomaterials Science
• Neuroscience
• Regenerative Medicine

Background:

• Peripheral nerve injuries (PNIs) are a significant cause of global disability, with current treatments like autologous nerve grafts having notable limitations.
• Complete functional recovery after PNIs remains a clinical challenge, necessitating innovative therapeutic strategies.

Purpose of the Study:

• To review the potential of electroactive smart biomaterials for fabricating nerve guide conduits (NGCs).
• To analyze the role of electrical stimulation (ES) in enhancing nerve regeneration within NGCs.
• To explore the future clinical applications of these advanced NGCs.

Main Methods:

• Overview of conductive and piezoelectric nanomaterials, piezoelectric polymers, and organic conductive polymers used in smart NGC fabrication.
• Analysis of research on the integration of electrical stimulation (ES) with NGCs.
• Comprehensive review of recent advancements in ES for NGC applications.

Main Results:

• Electroactive smart biomaterials offer a promising alternative to traditional grafts for nerve repair.
• The incorporation of conductive and piezoelectric materials in NGCs can facilitate nerve regeneration.
• Electrical stimulation (ES) demonstrates a substantial regenerative effect on nerve cells within NGCs.

Conclusions:

• Smart NGCs utilizing electroactive biomaterials and ES represent a significant advancement in treating PNIs.
• These technologies hold considerable potential for improving sensory and functional recovery in patients.
• Further research and development are crucial for successful clinical translation.