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Published on: October 17, 2025
Numerical design and experimental analysis of cell-based sensors
Hua Cai1, Qingjun Liu, Lifeng Qin
1Biosensor National Special Laboratory, Key Laboratory of Biomedical Engineering of Education Ministry, Department of, Biomedical Engineering, P.O.Box 1590, Zhejiang University, Hangzhou, 310027, P.R. China; State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese, Academy of Sciences, 200050, P.R. China.
This study introduces a novel numerical and experimental analysis of cell-based sensors to enhance signal-to-noise ratio. The improved equivalent circuit model accurately predicts sensor performance in detecting extracellular action potentials (AP).
Area of Science:
- Biomedical Engineering
- Sensor Technology
- Computational Biology
Background:
- Cell-based sensors are crucial for biological signal detection.
- Improving signal-to-noise ratio is essential for sensor performance.
- Rapidly changing biological signals, like action potentials, pose a challenge for accurate detection.
Purpose of the Study:
- To numerically design and experimentally analyze cell-based sensors.
- To enhance the signal-to-noise ratio and overall performance of cell-based sensor chips.
- To develop and validate an improved equivalent circuit model for neuron-sensor interface analysis.
Main Methods:
- Numerical simulation of cell-based sensor design.
- Experimental analysis of sensor performance.
- Development of an improved equivalent circuit model for neuron-sensor interfaces.
- Modeling the interface between neurons and sensors.
Main Results:
- The numerical design and experimental analysis successfully improved sensor performance.
- The improved equivalent circuit model accurately predicted experimental outcomes.
- The developed cell-based sensors demonstrated effective detection of extracellular action potentials (AP).
- Numerical predictions closely matched experimental results.
Conclusions:
- The novel numerical design and experimental analysis provide a robust method for optimizing cell-based sensors.
- The improved equivalent circuit model is effective for predicting sensor behavior and performance.
- The designed cell-based sensors show significant potential for detecting extracellular AP with high fidelity.

