[WCU세미나](4월8일) 박재성 박사 (연세대학교 나노/마이크로응용기계기술사업단)

1. 제 목 :

Biochip & Biosensor Researches Using Optical, Electrical, Mechanical, and Biochemical Technology


2. 연 사 : 박재성 박사 (연세대학교 나노/마이크로응용기계기술사업단)

3. 일 시 : 2009년 4월 8일 (수요일) 16:30~17:30

4. 장 소 : 301동 1512호 세미나실


5. 내 용 :

This presentation deals with microfluidic researches based on biochip & biosensor technology. At present, the biochip, biosensor researches have become interdisciplinary topics in optical, electrical, mechanical, and biochemical fields. This seminar will introduce a trend in biochip and biosensor researches, basic fabrication methods, and several interesting applications. The main contents are composed of five parts: (1) a microfluidic ATP-bioluminescence sensor for the detection of airborne microbes, (2) the measurement of biochemical thermal reaction in microfluidic channel using dual-thermopile, (3) the continuous, flow-through sorting of microbeads in a magnetic field, (4) an impedimetric biosensor for real-time monitoring of bacterial growth, and (5) continuous size-based sorting of microspheres using a multi-orifice microchannel. The speaker’s on-going research is the development of particle separation techniques using hydrodynamic forces. This speaker developed a new microfluidic method, so-called multi-orifice-self-pinching-flow-fractionation (MOSPiFF), for ontinuous size-based separation of microparticles. This method is performed by the combined use of inertial lift forces and Vena Contracta generated in a series of contraction/expansion microchannels. He found that with Rec of 63~91, a large particle (~15㎛) is focused on the centerline of channel, while a small particle (~7 ㎛) migrates near side walls. This method is useful for a high throughput and continuous separation, and can be applied to the depletion of cancer cells in patient samples without any dilution and labeling.
 

6. 연사약력

Research Associate 2006년 9월 ~ 현재
BK21 나노/마이크로응용기계기술사업단, 연세대학교

Postdoctoral 2005년 9월 ~ 2006년 5월
기계공학과, 테네시주립대학교, 미국

공학박사 (Ph.D.) 기계공학과, 텍사스 A&M 대학교, 미국 2005년 12월

공학석사 (M.S.) 기계공학과, 텍사스 A&M 대학교, 미국 2000년 12월

공학학사 (B.S.) 기계공학과, 한양 대학교 1997년 2월


7. 문 의 : 기계항공공학부 김경덕 (Kenneth D. Kihm) 교수 (880-1710)