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Updated: May 14, 2026
08:34
Contribution of the Na+/K+ Pump to Rhythmic Bursting, Explored with Modeling and Dynamic Clamp Analyses
Published on: May 9, 2021
Efficient Dynamic Potential Stabilization via a Bioinspired Ion Pump Prevents Sensing Signals Drift
Dandan Lei1,2, Qixiang Zhang2,3, Shulong Li1
1Institute for Advanced Study, Chengdu University, Chengdu, Sichuan, China.
Advanced Materials (Deerfield Beach, Fla.)
|May 13, 2026
Summary
This study introduces an oxygen-driven ion pump inspired by biological systems to power artificial sensors. This innovation overcomes energy depletion, enabling stable, self-powered operation for extended periods.
Area of Science:
- Electrochemistry
- Materials Science
- Bioinspired Engineering
Background:
- Artificial ion-sensing systems require external power, leading to stability issues due to energy depletion and potential decay.
- Existing systems lack active ion regulation mechanisms found in biological pumps, hindering sustained performance.
Purpose of the Study:
- To develop an oxygen-driven bioinspired ion pump to overcome energy supply challenges in potentiometric sensors.
- To emulate biological active transport for sustained electrode potential stability and enhanced ion storage.
Main Methods:
- Exploited oxygen-sensitive O─Zn bonds in NH4+-intercalated V2O5 for Zn2+ extraction and reverse pumping.
- Utilized theoretical simulations to elucidate the mechanism of oxygen-driven ion pumping.
- Constructed and tested a self-powered respiration sensor in ambient air.
Main Results:
- Achieved efficient Zn2+ extraction and reverse pumping in oxygen-rich environments, mimicking biological active transport.
- Demonstrated sustained electrode potential stability and enhanced ion-storage capacity of V2O5.
- The self-powered sensor operated stably for 480 hours with minimal degradation (0.2%) in ambient air, unlike oxygen-free environments (13.9%).
Conclusions:
- An oxygen-driven bioinspired ion-pumping strategy effectively overcomes energy supply limitations in potentiometric sensors.
- This approach offers a novel pathway for developing self-powered, stable ion-sensing systems.
- The bioinspired pump design enhances electrode potential stability and ion-storage capacity.
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