Summary

Wearable health-monitoring devices are becoming increasingly important for personalized health care, but conventional patches often rely on substrates that restrict airflow, trap sweat and cause skin discomfort during prolonged use. These limitations can also interfere with the reliable collection and analysis of sweat, highlighting the need for breathable materials that support both comfortable wear and accurate sensing. Addressing this challenge, researchers led by professor Sooman Lim at Jeonbuk National University, South Korea, have developed a breathable wearable patch using traditional Korean mulberry paper, known as hanji.

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