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고효율 바이오물질 분리 및 농축을 위한 나노필터소자제작
허윤석 ( Yun Suk Huh ),최봉길 ( Bong Gil Choi ),홍원희 ( Won Hi Hong ) 한국화학공학회 2012 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.50 No.4
Here, we develop a new nanofilter device for the rapid and efficient separation of nanoparticles and biomolecules, exploiting the use of AAO mebrane with ordered nanopores in the range from 20 nm to 200 nm. Briefly, the chip comprises of a series of the upper and lower PDMS channels containing embedded inlet and outlet ports, and 50μm width microfluidic channel, and AAO membrane to be made the filtering zone. After assembling these components, the acrylate plastic plates were used to fix the device on the top and bottom side. When introducing the samples into the inlet ports of the upper PDMS channel, we were able to separate and concentrate the nanoparticles and target molecules at the filtering zone, and to elute the solutions containing the unwanted materials toward the lower PDMS channels normal to the direction of AAO membrane. To demonstrate the usefulness of the device we apply it to the SERS detection of nucleic acid sequences associated with Dengue virus serotype 2. We report a limit of detection for Dengue sequences of 300nM and show excellent enhancement of Raman signals from the filter zone of the nanofilter device.
Vesosomal drug delivery for controlled and sustained release of multiple components
Jingyeong Yun(윤진경),Deborah Lee(이드보라),Seoyoon Song(송서윤),Suheon Kim(김수헌),Mina Lee(이민아),Eunsu Kim(김은수),Sunhee Yoon(윤선희),Han-Ul Kim(김한울),Sejin Son(손세진),Hyun Suk Jung(정현석),Yun Suk Huh(허윤석),Tae-Joon Jeon(전태 대한기계학회 2023 대한기계학회 춘추학술대회 Vol.2023 No.11