Electronic Dura Mater Meddling in the Central Nervous System

JAMA Neurol. 2017 Apr 1;74(4):470-475. doi: 10.1001/jamaneurol.2016.5767.

Abstract

Importance: A growing number of neurologic treatments rely on neural implants capable of delivering electrical and chemical stimulation to targeted regions of the central nervous system for extended periods.

Objective: To assess the potential of a novel class of multimodal neural implants, termed electronic dura mater or e-dura, to fulfill this need.

Evidence review: Results from preclinical applications of e-dura implants and clinical evidence.

Findings: The silicone-based implant e-dura embeds interconnects, electrodes, and chemotrodes that are entirely stretchable. These unique mechanical properties allow e-dura to conform to the circumvolutions of the brain and spinal cord without damaging neural tissues or triggering foreign body reactions.

Conclusions and relevance: Although challenges lie ahead to reach clinical fruition, the unique mechanical properties and integrated modalities of e-dura provide future opportunities to treat or alleviate neurologic deficits.

Publication types

  • Review

MeSH terms

  • Animals
  • Biocompatible Materials / therapeutic use
  • Brain-Computer Interfaces*
  • Central Nervous System / physiology*
  • Dura Mater / physiology*
  • Electric Stimulation
  • Electrodes, Implanted
  • Humans
  • Silicon
  • Spinal Cord Injuries / therapy

Substances

  • Biocompatible Materials
  • Silicon