Since 2003, Dr. Seung-Ho Ohk has been a professor in the Department of Oral Microbiology, School of Dentistry, Chonnam National University, Gwangju, Korea. He obtained his Ph.D. in the Department of Food Engineering, Yonsei University, Seoul, Korea, in 1997. He worked as a research fellow in the Department of Oral Biology, SUNY, Buffalo, USA, from 1997 to 2000. He also had the opportunity to work as an exchange scholar at Purdue University from 2007 to 2009, where he started his research on aptamer sensors. He is currently trying to develop fast, specific ways to detect oral infections with several biochemical substances at Chonnam National University in Korea.