Energy Harvesting Untethered Soft Electronic Devices

Area of Science:

• Electronics
• Biomedical Engineering
• Materials Science

Background:

• Wearable and stretchable electronics enable conformable or implantable devices for physiological signal measurement.
• Battery-free electronic devices are crucial for continuous, long-term biosignal monitoring in healthcare.
• Advances in energy harvesting are key to powering these next-generation medical devices.

Purpose of the Study:

• To present recent progress in battery-less wearable devices.
• To explore various energy harvesting sources for powering these devices.
• To discuss the mechanisms behind key energy harvesting and communication technologies.

Main Methods:

• Review of recent literature on battery-less wearable electronics.
• Analysis of energy harvesting techniques including electromagnetic, mechanical, and biofuel sources.
• Discussion of near/far-field communications, triboelectric, thermoelectric, and biofuel principles.

Main Results:

• Demonstration of diverse energy harvesting strategies for wearable electronics.
• Explanation of technologies enabling continuous, long-term biosignal acquisition.
• Highlighting the potential for improved human-machine interfaces and clinical diagnostics.

Conclusions:

• Battery-free wearable electronics powered by energy harvesting show significant promise for advanced healthcare.
• Continuous biosignal monitoring is becoming increasingly feasible for diagnostics and human-machine interfaces.
• Further development in energy harvesting and communication technologies will drive innovation in medical devices.