The development of a bio-friendly transparent temperature sensor technology would involve the creation of a sensor that can accurately measure temperature changes by using light as the sensing mechanism. This technology would be designed to be non-invasive and biocompatible, making it suitable for use in a variety of biological applications. Professor Kang Hong-gi of the Department of Electrical Engineering and Computer Science at DGIST(President: Kuk Yang), together with Dr. Chung Seung-jun of the Soft Hybrid Materials Research Center, KIST(President: Yoon Seok-jin) announced the development of a transparent temperature sensor capable of precisely and quickly measuring temperature changes caused by light