화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2007년 봄 (04/19 ~ 04/20, 울산 롯데호텔)
권호 13권 1호, p.307
발표분야 분리기술
제목 Analyses of the crystallization of NaCl using DNA coated Quartz Crystal by the method of drawing out
초록 The crystallization of NaCl driven by adding ethanol was monitored using QCA. Adding ethanol to NaCl solution reduced the solubility of NaCl and consequently led to growth of NaCl crystals. To investigate the crystallization behavior of NaCl, a gold electrode of quartz crystal was coated by anchoring with synthetic DNA based on a self-assembly method. Resonant frequency of QCA varied with the amount of NaCl adsorbed on the self-assembled layer of synthetic DNA, and thereby the process of NaCl crystallization could be analyzed indirectly by monitoring the frequency change of QCA. To change the extent of supersaturation of NaCl, the amount of ethanol added to the solution was varied from 1 to 10ml. Then, the effect of the extent of supersaturation on the crystallization was examined by analyzing the frequency changes of QCA coated with synthetic DNA. It was shown that the DNA could be well applied for the characterization and analyses of the crystallization behavior of NaCl. DNA molecules can be used as a template of the crystal formation.
저자 박정진1, 김승진1, 정수경1, 김성국2, 김종민1, 김우식2, 장상목1
소속 1동아대, 2경희대
키워드 DNA; QCA; NaCl; Drawing out
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