He is a fellow of The Korean Academy of Science & Technology and a member of The National Academy of Engineering of Korea. His main research interest is development of smart nano-probes for theragnosis and molecular imaging with polymeric nanoparticles. He received Samsung Polymer Science Award from The Polymer Society of Korea (2013) and Academy Award from The Korean Academy of Science and Technology (2014). He recently awarded Order of Science and Technology Merit (Ungbi Medal) from the Republic of Korea (2016). He has published over 360 peer-reviewed articles (total citation 16,400, h-index 73 by Web of Science) and delivered 70 invited lectures at International Conferences.