Related Experiment Video
Updated: Oct 31, 2025
10:45
Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing
Published on: August 29, 2025
370
Electrochemically Switchable Double-Gate Nanofluidic Logic Device as Biomimetic Ion Pumps
Ming-Yang Wu1, Zhong-Qiu Li1, Guan-Long Zhu1
1State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
ACS Applied Materials & Interfaces
|June 30, 2021
Summary
Researchers developed a novel double-gate nanofluidic device using electrochemical polymerization. This biomimetic ion pump mimics biological systems, enabling controlled ion transport against concentration gradients for advanced logic functions.
Area of Science:
- Nanofluidics
- Bioinspired Engineering
- Electrochemistry
Background:
- Biological ion pumps actively transport ions against gradients using dual gates.
- Artificial nanofluidic devices require improved controllability for logic functions and biomimicry.
Purpose of the Study:
- To fabricate an electrochemically switchable double-gate nanofluidic device.
- To investigate its logic function and biomimetic ion pumping capabilities.
Main Methods:
- Electrochemical polymerization to create the double-gate nanofluidic device.
- In situ and reversible switching of ion transport states.
- Systematic investigation of logic functions using gate states as input and ionic conductance as output.
Main Results:
- The device exhibits four distinct, switchable ion transport states.
- Logic functions were systematically analyzed based on gate inputs and conductance outputs.
- A biomimetic electrochemical ion pump was successfully established, achieving active ion transport against a gradient.
Conclusions:
- The developed double-gate nanofluidic device offers enhanced control over ion transport.
- This work provides a foundation for constructing complex logic networks and bioinspired ion pump systems.
