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Bioresorbable, wireless dual stimulator for peripheral nerve regeneration

  • Hak-Young Ahn (Co-first Author)
  • , Jordan B. Walters (Co-first Author)
  • , Raudel Avila
  • , Seyong Oh
  • , Seung Gi Seo
  • , Jong Uk Kim
  • , Jihun Park
  • , Seonggwang Yoo
  • , Yeon Sik Choi
  • , Tae Yeon Kim
  • , Jiaqi Liu
  • , Jae-Young Yoo
  • , Oliver Ralph Weissleder
  • , Dominic D’Andrea
  • , Chanho Park
  • , Geumbee Lee
  • , Donghwi Cho
  • , Woo-Youl Maeng
  • , Hong-Joon Yoon
  • , Grace Wickerson
  • Yasmine Bouricha, Jing Tian, Tzu Chun Chung, Sumanas W. Jordan, Song Li, Yonggang Huang, Colin K. Franz*, John A. Rogers*
*Corresponding author for this work

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

Abstract

Wireless bioresorbable electrical stimulators have broad potential as therapeutic implants. Such devices operate for a clinically relevant duration and then harmlessly dissolve, eliminating the need for surgical removal. A representative application is in treating peripheral nerve injuries through targeted stimulation at either proximal or distal sites, with operation for up to one week. This report introduces enhanced devices with additional capabilities: (1) simultaneous stimulation of both proximal and distal sites, and (2) robust operation for as long as several months, all achieved with materials that naturally resorb by hydrolysis in surrounding biofluids. Systematic investigations of the materials and design aspects highlight the key features that enable dual stimulation and with enhanced stability. Animal model studies illustrate beneficial effects in promoting peripheral nerve regeneration, as quantified by increased total muscle and muscle fiber cross-sectional area and compound muscle action potentials. These findings expand the clinical applications of bioresorbable stimulators, particularly for long-term nerve regeneration and continuous neuromodulation-based monitoring. © The Author(s) 2025.
Original languageEnglish
Article number4752
JournalNature Communications
Volume16
Online published22 May 2025
DOIs
Publication statusPublished - 2025
Externally publishedYes

Funding

This work was supported by the Querrey-Simpson Institute for Bioelectronics at Northwestern University. J.A.R. and S.L. acknowledge support from National Institutes of Health grants (R01NS126918). C.K.F. acknowledges support from the National Institute of Neurological Disorders and Stroke (R01NS136683), Eunice Kennedy Shriver National Institute of Child Health and Human Development (R03HD101090), the American Neuromuscular Foundation (Development Grant), and the Belle Carnell Regenerative Neurorehabilitation Fund at the Shirley Ryan AbilityLab. H.-Y. A. acknowledges support by a grant of the Korea Health Technology R&D Project through the Korea Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Republic of Korea (HI19C1348). R.A. acknowledges support from the ASME Applied Mechanics Division - Haythornthwaite Foundation Research Initiation Grant. We thank K.E. Madsen for helpful discussions regarding electrochemistry. Small animal imaging work was supported by the Center for Translational Imaging at Northwestern University.

Publisher's Copyright Statement

  • This full text is made available under CC-BY-NC-ND 4.0. https://creativecommons.org/licenses/by-nc-nd/4.0/

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