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A Method for Growing Bio-memristors from Slime Mold
Published on: November 2, 2017
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Multilevel Reset Dependent Set of a Biodegradable Memristor with Physically Transient
Mohammad Tauquir Alam Shamim Shaikh1,2, Tan Hoang Vu Nguyen2, Ho Jung Jeon1,2
1Department of Semiconductor Systems Engineering and Institute of Semiconductor and System IC, Sejong University, Seoul, 05006, Republic of Korea.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|November 30, 2023
Summary
This study introduces a biocompatible, biodegradable electronic device using polyvinylpyrrolidone (PVP) and magnesium (Mg) for health monitoring and data security. The device exhibits stable, non-volatile switching and neuromorphic capabilities, dissolving in water within 10 minutes.
Area of Science:
- Materials Science
- Neuroscience
- Electronics Engineering
Background:
- Biocompatible and biodegradable electronics are crucial for advanced health monitoring and secure data systems.
- Physically transient electronics offer unique solutions for temporary applications and environmental sustainability.
Purpose of the Study:
- To fabricate and characterize a novel biocompatible and biodegradable physically transient neuromorphic device.
- To investigate the device's non-volatile switching behavior, endurance, retention, and neuromorphic computation capabilities.
Main Methods:
- Fabrication of a W/Mg/PVP/Mg/CHS device using polyvinylpyrrolidone (PVP) biopolymer, electrochemically active magnesium (Mg) electrodes, and a chitosan-based substrate (CHS).
- Electrochemical characterization including I-V curves and compliance-induced multilevel SET/RESET behavior.
- Evaluation of device stability through endurance tests (100 sweeps) and retention time measurements (>10^4 s).
- Assessment of transient properties, including dissolution in deionized water within 10 minutes.
- Pulse transient measurements to demonstrate neuromorphic functions like excitatory post-synaptic current (EPSC), potentiation, depression, and learning behavior.
Main Results:
- The W/Mg/PVP/Mg/CHS device exhibits non-volatile bipolar I-V characteristics with compliance-induced multilevel SET/RESET behavior.
- Stable switching properties were confirmed with high endurance (100 sweeps) and long retention time (>10^4 s).
- The device demonstrated a high dynamic ON/OFF resistance ratio (10^6 Ω) and complete dissolution in DI water within 10 minutes.
- Neuromorphic computation capabilities, including EPSC, potentiation, depression, and learning, were successfully demonstrated through pulse transient measurements.
Conclusions:
- The fabricated W/Mg/PVP/Mg/CHS device shows significant promise for applications in healthcare and physically transient electronics.
- Its biocompatibility, biodegradability, non-volatile memory, and neuromorphic functions make it suitable for advanced health monitoring and secure data hardware.
- The device's ability to dissolve completely in water highlights its potential for environmentally friendly electronic applications.
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