Millimetre-scale bioresorbable optoelectronic systems for electrotherapy

Yamin Zhang*, Eric Rytkin, Liangsong Zeng, Jong Uk Kim, Lichao Tang, Haohui Zhang, Aleksei Mikhailov, Kaiyu Zhao, Yue Wang, Li Ding, Xinyue Lu, Anastasia Lantsova, Elena Aprea, Gengming Jiang, Shupeng Li, Seung Gi Seo, Tong Wang, Jin Wang, Jiayang Liu, Jianyu GuFei Liu, Keith Bailey, Yat Fung Larry Li, Amy Burrell, Anna Pfenniger, Andrey Ardashev, Tianyu Yang, Naijia Liu, Zengyao Lv, Nathan S. Purwanto, Yue Ying, Yinsheng Lu, Claire Hoepfner, Altynai Melisova, Jiarui Gong, Jinheon Jeong, Junhwan Choi, Alex Hou, Rachel Nolander, Wubin Bai, Sung Hun Jin, Zhenqiang Ma, John M. Torkelson, Yonggang Huang*, Wei Ouyang*, Rishi K. Arora*, Igor R. Efimov*, John A. Rogers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Temporary pacemakers are essential for the care of patients with short-lived bradycardia in post-operative and other settings1, 2, 3–4. Conventional devices require invasive open-heart surgery or less invasive endovascular surgery, both of which are challenging for paediatric and adult patients5, 6, 7–8. Other complications9, 10–11 include risks of infections, lacerations and perforations of the myocardium, and of displacements of external power supplies and control systems. Here we introduce a millimetre-scale bioresorbable optoelectronic system with an onboard power supply and a wireless, optical control mechanism with generalized capabilities in electrotherapy and specific application opportunities in temporary cardiac pacing. The extremely small sizes of these devices enable minimally invasive implantation, including percutaneous injection and endovascular delivery. Experimental studies demonstrate effective pacing in mouse, rat, porcine, canine and human cardiac models at both single-site and multi-site locations. Pairing with a skin-interfaced wireless device allows autonomous, closed-loop operation upon detection of arrhythmias. Further work illustrates opportunities in combining these miniaturized devices with other medical implants, with an example of arrays of pacemakers for individual or collective use on the frames of transcatheter aortic valve replacement systems, to provide unique solutions that address risks for atrioventricular block following surgeries. This base technology can be readily adapted for a broad range of additional applications in electrotherapy, such as nerve and bone regeneration, wound therapy and pain management.

Original languageEnglish (US)
Article number1821
Pages (from-to)77-86
Number of pages10
JournalNature
Volume640
Issue number8057
DOIs
StatePublished - Apr 3 2025

Funding

We acknowledge support from the Querrey Simpson Institute for Bioelectronics, the Leducq Foundation grant \u2018Bioelectronics for Neurocardiology\u2019 and the NIH grant (NIH R01 HL141470). Y.Z. acknowledges support from the National University of Singapore start-up grant and the AHA\u2019s Second Century Early Faculty Independence Award (grant: https://doi.org/10.58275/AHA.23SCEFIA1154076.pc.gr.173925 ). J. Gong and Z.M. acknowledge the support from AFOSR (grant number FA9550-21-1-0081). We thank E. Dempsey, Q. Ma, N. Ghoreishi-Haack, I. Stepien and S. Han for the help in the biocompatibility study and animal experiment. This work made use of the NUFAB facility of Northwestern University\u2019s NUANCE Center, which has received support from the SHyNE Resource (NSF ECCS-2025633), the IIN and Northwestern\u2019s MRSEC programme (NSF DMR-1720139). This work was supported by the Developmental Therapeutics Core and the Center for Advanced Molecular Imaging (RRID:SCR_021192) at Northwestern University and the Robert H. Lurie Comprehensive Cancer Center support grant (NCI P30 CA060553).

ASJC Scopus subject areas

  • General

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