2020.09-Present      Director, BK21 FOUR Center (Bio-health/Innovative Medicine) , Jeju National University, Jeju, South Korea

2020.06-Present      Director, Core-Facility Center (Bio-Health Materials Development), Jeju National University, Jeju, 

                                             South Korea

2019.04-Present      Chairman, Department of Interdisciplinary Graduate Program in Advanced Convergence Technology and 

                                             Science,  Jeju National University, Jeju, South Korea

2009.04-Present      Professor, Major in Bio-Materials, Faculty of Biotechnology, Jeju National University, Jeju, South Korea

2004.09-2009.03     Assistant Professor/NTR, University of Texas-Medical School, Houston, USA

2002.04-2004.09     Postdoctor, University of Texas-Medical School, Houston, USA

1996.09-2002.03     Researcher, Spring-8, Harima, RIKEN, Japan  

1996.09-1998.02      Postdoctor (STA-fellow), Wako, RIKEN, Japan              

1996  Ph. D in Dept. Microbiology, Kyungpook National University, KOREA

1989  M. S. in Dept. Microbiology, Kyungpook National University, KOREA

1987  B. S. in Dept. Microbiology, Kyungpook National University, KOREA