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Related Experiment Video

Updated: Aug 24, 2025

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

Cell-Based Biohybrid Sensor Device for Chemical Source Direction Estimation.

H Oda¹, K Kihara¹, Y Morimoto¹

¹Department of Mechano-Informatics, Graduate School of Information Science and Technology, The University of Tokyo, Japan.

Cyborg and Bionic Systems (Washington, D.C.)

|October 26, 2022

Summary

This summary is machine-generated.

Researchers developed a novel biohybrid sensor using living cells to accurately estimate chemical source direction. This breakthrough enables precise chemical detection and localization using cellular responses.

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Area of Science:

Biotechnology
Chemical Sensing
Microfluidics

Background:

Biohybrid sensors offer high sensitivity and selectivity for chemical detection.
Estimating chemical source direction using biohybrid sensors is an underexplored area.
Cellular responses to chemicals lack examination for directional information.

Purpose of the Study:

To develop a method for estimating chemical source direction using living cells.
To investigate the potential of biohybrid sensors for directional chemical sensing.

Main Methods:

Fabrication of a device with eight chambers housing 3D cell-laden collagen hydrogels.
Limiting the interface between cell-laden hydrogel and chemical solution to enhance temporal differences.
Monitoring fluorescence emission from calcium indicators within cells over time.

Main Results:

Successful estimation of chemical source direction with an error range of 7-13°.
Demonstration of a functional biohybrid sensor system for directional chemical detection.
Validation of the device's ability to capture directional cellular responses.

Conclusions:

A novel biohybrid sensor system can effectively estimate chemical source direction.
Microstructure devices with living cells can exploit cellular functionalities for directional sensing.
This approach opens new avenues for advanced chemical detection and localization.