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Related Experiment Video

Updated: Jun 23, 2026

Insertion of Flexible Neural Probes Using Rigid Stiffeners Attached with Biodissolvable Adhesive

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Published on: September 27, 2013

Soft biodegradable implants for long-distance and wide-angle sensing.

Yuqun Lan^1,2, Shuang Li^3,4, Haitao Guo⁵

¹State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China.

|January 7, 2026

Summary

This summary is machine-generated.

Researchers developed a soft, biodegradable wireless sensor for deep-tissue monitoring. This advanced implantable device accurately measures pressure, temperature, and strain over long distances, offering a promising solution for medical care.

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Area of Science:

Biomedical Engineering
Materials Science
Medical Devices

Background:

Internal physiological monitoring is crucial for medical care.
Current external or implantable technologies have limitations in deep-tissue monitoring, battery requirements, and communication stability.
Biodegradable sensors offer potential but face challenges with readout distance and signal stability.

Purpose of the Study:

To develop a soft, biodegradable, wireless sensing device for long-distance, accurate deep-tissue physiological monitoring.
To overcome limitations of existing implantable sensors regarding power sources, removal risks, and communication range.
To enable reliable measurement of pressure, temperature, and strain in deep tissues.

Main Methods:

A novel soft, biodegradable, wireless sensing device was designed.
The device incorporates a 'pole-moving sweeping' readout system and a folded structure for mechanical flexibility and electromagnetic function.
In vivo (horse abdominal cavity) and ex vivo tests were conducted to evaluate performance.

Main Results:

The device demonstrated accurate monitoring of deep-tissue pressure and temperature in horses over long distances (up to 16 cm).
Accurate strain monitoring was achieved ex vivo without strict positional control.
The sensor maintained accuracy across varying positions and angles.

Conclusions:

The developed soft, biodegradable, wireless sensor enables long-distance and wide-angle readout of deep-tissue physiological signals.
This technology shows significant translational promise for accessing critical internal health data.
It offers a safer and more effective alternative to conventional implantable monitoring devices.