Welcome the Han Research Group@CUK. We are an established collaborative research group that started to the Department of Chemistry at The Catholic University of Korea in the fall of 2018. Our research lies at the intersection of nanoscience, electrochemistry and the biological interface. Research interests in our group focus on the development of new (bio)analytical methods to probe chemical and biological systems with unprecedented spatial and temporal resolutions afforded by working at the micro/nanoscale. The scope of this research is quite broad, ranging from studies of fundamental chemical and biological phenomena to the development of applied electrochemical sensor technologies.