Capacitively coupled arrays of multiplexed flexible silicon transistors for long-term cardiac electrophysiology
Open accessAbstract
Advanced capabilities in electrical recording are essential for the treatment of heart-rhythm diseases. The most advanced technologies use flexible integrated electronics; however, the penetration of biological fluids into the underlying electronics and any ensuing electrochemical reactions pose significant safety risks. Here, we show that an ultrathin, leakage-free, biocompatible dielectric layer can completely seal an underlying layer of flexible electronics while allowing for electrophysiological measurements through capacitive coupling between tissue and the electronics, and thus without the need for direct metal contact. The resulting current-leakage levels and operational lifetimes are, respectively, four orders of magnitude smaller and between two and three orders of magnitude longer than those of any other flexible-electronics technology. Systematic electrophysiological studies with normal, paced and arrhythmic conditions in Langendorff hearts highlight the capabilities of the capacitive-coupling approach. Our technology provides a realistic pathway towards the broad applicability of biocompatible, flexible electronic implants.
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In vivo ECG recording equipment on the surface of the heart is subjected to dynamic movement, unlike static neural implants.
“Unlike static neural implants mentioned above, in vivo ECG recording equipment on the surface of the heart is subjected to dynamic movement.[375–378]”
From Flexible Electronics and Devices as Human–Machine Interfaces for Medical Robotics (2022) · cites this paper as [376]
Wearable sweat sensors address the limitation of traditional sweat testing by enabling in situ sweat measurements with real-time feedback, creating potential for preventive care, timely diagnosis, and treatment.
“By taking advantage of flexible and hybrid electronics (13–17), wearable sweat sensors address this limitation by enabling in situ sweat measurements with real-time feedback, creating potential for preventive care, timely diagnosis, and treatment (18–34).”
From Regional and correlative sweat analysis using high-throughput microfluidic sensing patches toward decoding sweat (2019) · cites this paper as [14]
The Abstract describes flexible electronic implants for cardiac electrophysiology, and the Discussion addresses cardiac mapping and potential arrhythmia diagnosis and treatment. Searches for sweat sensors, in situ sweat measurement, and traditional sweat testing found no passage addressing the attributed claim. (LLM, conf=0.77)
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Research works printed but not linked: 2
- [6]Zhang X Tai J Park J Tai Y-C 2014 IEEE 27th International Conference on Micro Electro Mechanical Systems (MEMS) 841 844 IEEE
- [55]Fang Hui Dataset for [Capacitively Coupled Arrays of Multiplexed Flexible Silicon Transistors for Long-Term Cardiac Electrophysiology] figshare https://figshare.com/s/961786fcede5a8703ec5 2017 PMC5552067 28804678
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- Authors
- Fang, H., Yu, K. J., Gloschat, C., Yang, Z., Song, E., Chiang, C.-H., Zhao, J., Won, S. M., Xu, S., Trumpis, M., Zhong, Y., Han, S. W., Xue, Y., Xu, D., Choi, S. W., Cauwenberghs, G., Kay, M., Huang, Y., Viventi, J., Efimov, I. R., & Rogers, J. A.
- Affiliations
- Northeastern University (US)
- University of Illinois Urbana-Champaign (US)
- George Washington University (US)
- Duke University (US)
- Northwestern University (US)
- University of California San Diego (US)
- Corresponding author
- Efimov, Igor R.
- Rogers, John A.
- ORCID
- Venue
- Nature Biomedical Engineering
- Published
- 2017-03-01
- Volume
- 1
- Issue
- 3
- ISSN
- 2157-846X (ISSN-L)
- PMC
- PMC5552067
- OpenAlex
- W2593247569
- Cited by
- 278
- References
- 53
- Citations by year
- 2026: 8 · 2025: 30 · 2024: 17 · 2023: 27 · 2022: 35 · 2021: 35 · 2020: 42 · 2019: 34 · 2018: 41 · 2017: 9
- FWCI
- 16.87
- Type
- journal article
- Language
- en
- Update notices
- erratum (2017-03-09)
- Open access
- green
- www.ncbi.nlm.nih.gov
- Licence
- Locations
- Nature Biomedical Engineering (publishedVersion)
- PubMed (publishedVersion)
- PubMed Central (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- Funders
- National Institutes of Health
- National Heart, Lung, and Blood Institute (R01HL115415, R21HL112278, R01HL114395)
- National Institute of Neurological Disorders and Stroke (U01NS099697)
- Topics
- Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neural Engineering
- Physical Sciences › Engineering › Biomedical Engineering › Advanced Sensor and Energy Harvesting Materials
- Physical Sciences › Engineering › Biomedical Engineering › Wireless Body Area Networks
- Keywords
- flexible electronics, capacitive coupling, silicon transistors, cardiac electrophysiology, implantable electronics, cardiac arrhythmias, Langendorff heart, multiplexed sensor arrays
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