[기계전공대학원세미나] (4월 17일) Polymer Microfluidic Device and Microstructures for Chemical Applications

1. 제 목 : Polymer Microfluidic Device and Microstructures for Chemical Applications

2. 일 시 : 2009년 4월 17일 (금) 16:30-17:30

3. 연 사 : Prof. Dong-Pyo Kim(Dept. of Chemical Eng. & Chemistry, Chungnam National University)

4. 장 소 : 301동 105호

5. 연사약력 :
1995. 2. ~ 현재 충남대학교 공과대학 정밀응용화학과
1993. 9. ~ 1995. 2. 한국화학연구소 무기소재부, 선임 연구원
1991. 9. ~ 1993. 9. Pos-doctor, Univ. of Illinois at U-C, 재료공학과
1986. 8. ~ 1991. 8. Ph.D., Temple University, 화학
1978. 2. ~ 1985. 2. 학사, 서강대학교, 화학과
2008.10. ~ 현재 창의연구사업 “미세유체응용화학연구단”
2004. 7. ~ 2009. 6. 국가지정연구실

6. 내용요약 :
Microreaction at lab-on-a chip system has been successfully used in analytical chemistry and bio-applications. In these applications, the microfluidic devices have been generally fabricated with durable glass, Si and metal by expensive MEMS fabrication techniques, alternatively with facile PDMS and PMMA by soft lithography techniques but low stability. Besides, it needs to develop the novel materials based microfluidics with high stability by facile fabrication process.
At the first part, we introduce the successful fabrication of inorganic polymer derived microchannels with organic solvent resistance and optical transparency, via economic micro-molding process. With the niche material-based microchannels between plastic and glass device, we demonstrated the reliable microchemical performance in various organic solvents at the different purposes, including photochemical catalytic reaction. The devices were fabricated by the commercial polyvinylsilazane (VL-20 Kion Corp.), or allyhydropolycarbosilane (SMP-10, Starfire Co.) with photo- and thermal initiators. The novel polymer-based microchannel can be a promising tool for various microchemistry and biotechnology applications.
Second part, we introduced the fabrication of functional ceramic micro-/nano-structures by using newly synthesized inorganic polymers. Using a negative type of inorganic photoresist, microstructured ceramic features were fabricated via photolithography, or UV-assisted nanomolding or nano-stereolithography with two photon absorption dye. And inorganic-organic diblock copolymer synthesized by combining vinylsilazane block with polystyrene block occurred the phase-separation at the nanoscale to form ordered mesoporous SiCN ceramic after pyrolysis.
In addition, hydrophilic polymers with contact angle range 7°~26° are also discussed for non-specific binding behavior. These unique materials must be useful to build the functional microstructures inside the microchannels by enhancing the uniqueness of microfluidics.

7. 문 의 : 기계항공공학부 전누리 교수(☏ 880-7111)