화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2005년 봄 (04/22 ~ 04/23, 여수대학교)
권호 11권 1호, p.759
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제목 Non-invasive temperature analysis of micro polymerase chain reaction chip by using liquid crystals and a micro-Raman spectroscopy
초록 Liquid crystal (LC) thermometry and micro-Raman spectroscopy system were introduced for non-invasive temperature analysis of micro polymerase chain reaction (PCR) chip. The silicon-based micro PCR chip was fabricated by microelectromechanical system (MEMS) technology, and it consisted of a microchannel and a platinum thin film heater and sensor. The temperature of the chip was controlled by in situ temperature control system with the nonlinear feedback proportional-integral control scheme. As the results of the LC thermometry, the average microchannel temperature near annealing temperature (55 oC) was similar to the set temperature measured by the Pt film heater and it was lowered by nearly 1 oC than the control temperature near extension temperature (72 oC). The temperature deviation measured by the LC thermometry were less than 1.5 oC ± 0.5 oC and 3 oC ± 0.3 oC at the annealing and the extension temperature, respectively. The temperature deviation measured by the Raman thermometry varied from -1.0 oC to +0.1 oC at the annealing temperature.
저자 김수호1, 노점임1, 전민구1, Luke P. Lee2, 우성일3
소속 1한국과학기술원 / 초미세 화학공정 시스템 연구센터 (CUPS), 2Univ. of California, 3Berkeley
키워드 polymerase chain reaction; microelectromechanical system; liquid crystals; micro-Raman spectroscopy; temperature measurement
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