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A Zero-Voltage-Writing Artificial Nervous System Based on Biosensor Integrated on Ferroelectric Tunnel Junction
Xiaokun Qin1,2, Bowen Zhong1,2, Shuxian Lv3
1State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, 100083, China.
This study introduces a zero-voltage-writing artificial nervous system (ZANS) that uses bio-signals for both sensing and power. This innovation enables self-powered, bionic systems for applications like prosthetics.
Area of Science:
- Neuroscience
- Materials Science
- Biotechnology
Background:
- Artificial nervous systems show promise for neural signal emulation.
- Bionic systems for bio-signal transduction lag behind physical signal systems and require external power.
- Developing self-powered, bio-integrated neuromorphic systems is crucial for advanced prosthetics and robotics.
Purpose of the Study:
- To present a novel zero-voltage-writing artificial nervous system (ZANS) for bio-signal transduction.
- To develop a system that utilizes bio-sources for both sensing and energy, eliminating the need for external power.
- To demonstrate the in vivo application of the ZANS for precise biological control.
Main Methods:
- Integration of a bio-source-sensing device (BSSD) for ion-based sensing and power generation.
- Utilizing a hafnium-zirconium oxide-ferroelectric tunnel junction (HZO-FTJ) for adjustable resistance states.
- Connecting the ZANS with a flexible nerve stimulation electrode for in vivo testing.
Main Results:
- The BSSD successfully used ion bio-sources for perception and energy, outputting voltage signals based on ion concentration changes.
- The HZO-FTJ enabled zero-voltage-writing neuromorphic bio-signal modulation.
- Precise muscle control of a rabbit leg was achieved by integrating the ZANS with a nerve stimulation electrode.
Conclusions:
- The developed ZANS offers a self-powered, bionic solution for bio-signal transduction.
- Independence from external power sources significantly enhances the applicability of ZANS in robotics and prosthetics.
- This work paves the way for more integrated and autonomous bioelectronic devices.
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