Wireless bioresorbable electronic system enables sustained nonpharmacological neuroregenerative therapy

Jahyun Koo, Matthew R. MacEwan, Seung-Kyun Kang, Sang Min Won, Manu Stephen, Paul Gamble, Zhaoqian Xie, Ying Yan, Yu-Yu Chen, Jiho Shin, Nathan Birenbaum, Sangjin Chung, Sung Bong Kim, Jawad Khalifeh, Daniel V. Harburg, Kelsey Bean, Michael Paskett, Jeonghyun Kim, Zohny S. Zohny, Seung Min Lee, Ruoyao Zhang, Kaijing Luo, Bowen Ji, Anthony Banks, Hyuck Mo Lee, Younggang Huang, Wilson Z. Ray & John A. Rogers. Nature Medicine 2018 Read More

Abstract

Peripheral nerve injuries represent a significant problem in public health, constituting 2–5% of all trauma cases1. For severe nerve injuries, even advanced forms of clinical intervention often lead to incomplete and unsatisfactory motor and/or sensory function2. Numerous studies report the potential of pharmacological approaches (for example, growth factors, immunosuppressants) to accelerate and enhance nerve regeneration in rodent models3–10. Unfortunately, few have had a positive impact in clinical practice. Direct intraoperative electrical stimulation of injured nerve tissue proximal to the site of repair has been demonstrated to enhance and accelerate functional recovery11,12, suggesting a novel nonpharmacological, bioelectric form of therapy that could complement existing surgical approaches. A significant limitation of this technique is that existing protocols are constrained to intraoperative use and limited therapeutic benefits13. Herein we introduce (i) a platform for wireless, programmable electrical peripheral nerve stimulation, built with a collection of circuit elements and substrates that are entirely bioresorbable and biocompatible, and (ii) the first reported demonstration of enhanced neuroregeneration and functional recovery in rodent models as a result of multiple episodes of electrical stimulation of injured nervous tissue. © 2018, The Author(s), under exclusive licence to Springer Nature America, Inc.

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Posted on October 31, 2018
Posted in: Axon Injury & Repair, NeuroRestorative Therapy, Publications Authors: