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현재 가능한 작업은 아래와 같습니다.
  • 02월 28일 19시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

제111회 대한화학회 학술발표회, 총회 및 기기전시회 안내 Three-Dimensional Network of Single-walled Carbon Nanotubes for Microfluidic Applications

2013년 2월 14일 16시 40분 15초
PHYS2.O-7 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
금 11시 : 30분
물리화학 - General Oral Presentation (II)
저자 및
서정은, 조석진, 조용덕1, 이수범, 박미경, 오은결, 이해원*
한양대학교 화학과, Korea
1한양대학교 나노융합과학과, Korea
Filtration and capture in microfluidic systems are becoming increasingly important in a variety of biomedical and environmental, applications. The on-chip filtration is able to handle small amounts of liquid and analyte, and it increases also detection efficiency via sorting of analyte. Here, we leveraged these 3D network of SWNTs to develop a new type of microfluidic filtration platforms. The 3D network of SWNTs have hierarchical structures comprised of interconnected SWNTs between Si pillars in microfluidic channels. The CNTs were coaxially coated with Al2O3 by atomic layer deposition(ALD) to prevent CNTs from aggregation in microfluidic chips. The physicochemical properties of the 3D network of CNTs can be readily tuned by using ALD to form and engineer functional coatings on the hierarchical structures. As demonstrated in the filtering of PS nanoparticles, these types of functional hierarchical 3D structures offer new opportunities to develop novel filtration systems. And, for the extension of this approach to biomaterial assays, the networks coated with Al2O3 were silanized to functionalize with biotin. The Al2O3 coated 3D networks were used for nanoparticles filtration and streptavidin capturing. Expecally, this 3D network of SWNTs can enhance signal intensity dramatically in very diluted solution. These results will provide a robust multifuncitonal platform for a variety of biomedical and environmental applications.