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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2020.1
- 수록면
- 258 - 267 (10page)
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A liquid crystal (LC)‐based pH sensor for real‐time monitoring of variations in localized pH values near the LC droplets was developed, and its applicability for the detection of acidic gases was explored. It was found that 4‐cyano‐4′‐pentylbiphenyl (5CB), when doped with hexanoic acid (HA), shows a bright-fan-shaped (planar orientation of LCs) to dark-cross (homeotropic orientation of LCs) optical response to a minimal change of the pH value (from 6.5 to 6.6). The fast and intensive pH‐driven optical response can be explained mainly with the orientational transitions of 5CB, induced by the protonation and deprotonation of HA at the interface of aqueous/ LC droplet. Because of its high pH sensitivity, the LC‐based sensor was further exploited for monitoring the local pH changes, which were originated from concentration changes of acidic gases. The results suggested that at an industrial scale/production environment, the sensor shows excellent performance for long-term monitoring and sensing of acidic gases. This type of LC‐based sensor may find to fulfill its applicability potential in the trace measurement of acidic gases.
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참고문헌 (44)
참고문헌 신청
Lebrero, R. / 2011 / Odor assessment and management in wastewater treatment plants: a review / Crit. Rev. Environ. Sci. Technol 41:915~950
Tagliabue, M. / 2009 / Natural gas treating by selective adsorption: Material science and chemical engineering interplay / Chem. Eng. J. 155:553~566
Gorguner, M. / 2010 / Acute inhalation injury / Eurasian J. Med 42:28~35
Saeed, O. / 2018 / Inhalation injury and toxic industrial chemical exposure / Military Medicine 183:130~132
Pettilä, V. / 2000 / Zinc chloride smoke inhalation: a rare cause of severe acute respiratory distress syndrome / Intensive Care Med. 26:215~217
Tagliabue, M. / 2009 / Natural gas treating by selective adsorption: Material science and chemical engineering interplay / Chem. Eng. J. 155:553~566
Gorguner, M. / 2010 / Acute inhalation injury / Eurasian J. Med 42:28~35
Saeed, O. / 2018 / Inhalation injury and toxic industrial chemical exposure / Military Medicine 183:130~132
Pettilä, V. / 2000 / Zinc chloride smoke inhalation: a rare cause of severe acute respiratory distress syndrome / Intensive Care Med. 26:215~217
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