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Electrohydrodynamic printed ultra-high performance liquid metal strain sensor.

Xu Chen¹, Yiwen Feng², Kaiwen Chen¹

¹State Key Laboratory of High-performance Precision Manufacturing, Dalian University of Technology, Dalian, 116024, China.

Microsystems & Nanoengineering

|April 22, 2026

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This summary is machine-generated.

Electrohydrodynamic printing enables ultra-fine liquid metal patterning for advanced flexible electronics. This method creates highly sensitive strain sensors for applications like gesture recognition and pulse measurement.

Area of Science:

Materials Science
Electrical Engineering
Robotics

Background:

Liquid metals offer unique properties like fluidity and strain adaptability for flexible electronics.
Challenges in precise liquid metal patterning limit device integration and performance due to low viscosity and high surface tension.

Purpose of the Study:

To develop an electrohydrodynamic printing method for precise, large-length, and customized manufacturing of liquid-metal microwires.
To investigate the application of these liquid-metal microwires in fabricating ultra-sensitive strain sensors.

Main Methods:

Utilized electrohydrodynamic printing for fabricating liquid-metal microwires.
Fabricated a simple liquid-metal wire structure for strain sensor development.
Tested the strain sensor's sensitivity, durability, and performance in specific applications.

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Main Results:

Achieved ultra-fine patterning of liquid metals, enabling customized manufacturing.
Developed a strain sensor with ultra-sensitive detection capability (0.008% weak strain).
Demonstrated sensor durability withstanding thousands of tensile cycles at 80% strain.
Showcased sensor performance in gesture recognition and pulse measurement applications.

Conclusions:

Electrohydrodynamic printing provides a practical and precise method for liquid metal processing.
This technique significantly expands the potential applications of liquid metal devices in flexible electronics and beyond.