- Developed laser-induced graphene flexible electrode technology deposited with "siloxene" -

- Developed ultra-sensitive heavy metal patch sensor based on "siloxene-carbon nanotube" graphene composite electrode -

- Improved detection accuracy of heavy metals through the integration of temperature and pH correction sensors - 

Professor Jaeyoung Park's research team (Department of Electronic Engineering) at Kwangwoon University has developed a flexible electrode with excellent electrical and mechanical properties. This was accomplished by coating a siloxene (two-dimensional nanomaterial) and carbon nanotube (CNT) nanocomposite on laser-induced graphene (LIG) transferred onto a polydimethylsiloxane (PDMS) polymer flexible substrate. Using this electrode material, they succeeded in developing a high-performance patch sensor that can detect and monitor copper (Cu) ions in human perspiration in real-time. In addition, the accuracy of copper ion detection was greatly improved by fabricating temperature and pH correction sensors on the same flexible substrate. The perspiration hybrid patch sensor is expected to be widely used for health management and disease diagnosis and prevention through the detection of various heavy metal ions in perspiration.

< Professor Park Jaeyoung (Left) and Ph.D. student Hyeseol (Right) >

This research was funded by the government (Ministry of Science and ICT), the National Research Foundation of Korea Biomedical Technology Project (2017M3A9F1031270), and supported by the Technology Innovation Program (20000773, Development of nano-multisensors based on wearable patch for nonhaematological monitoring of metabolic syndrom). The research results were published in Small (IF: 15.535) of WILEY Publishing, the world's leading research journal on materials and devices.

Research Link: https://doi.org/10.1002/smll.202201247

< 2D siloxene functionalized laser-induced graphene electrode manufacturing process and sweat-based flexible high-performance hybrid biosensor patch concept diagram >