教師資料查詢 | 類別: 期刊論文 | 教師: 陳志欣 CHEN, CHIH-HSIN (瀏覽個人網頁)

標題:Agarose dispersed liquid crystals as a soft sensing platform for detecting mercuric ions in water
學年108
學期1
出版(發表)日期2019/09/19
作品名稱Agarose dispersed liquid crystals as a soft sensing platform for detecting mercuric ions in water
作品名稱(其他語言)
著者Huang, J.-W.; Chang, J.-J.; Yang, R.-H.; Chen, C.-H.*
單位
出版者
著錄名稱、卷期、頁數Research on Chemical Intermediates 45, 5409-5423
摘要In this work, we report the development of liquid crystal (LC) droplets dispersed in agarose gel as a matrix, i.e., agarose dispersed liquid crystals (ADLCs), which are used as a soft sensing platform for detecting mercuric ions (Hg2+) in water. The LC droplets were prepared by a nematic LC, 4-cyano-4′-pentylbiphenyl (5CB), doped with a Hg2+-selective ligand, 5-(pyridine-4-yl)-2-(5-(pyridin-4-yl)thiophen-2-yl)thiazole (ZT). When the solution containing Hg2+ was dispensed on the ADLCs films, the formation of Hg2+/ZT complexes led to a distinct radial-to-irregular configurational transition of the LC droplets that can be simply differentiated by naked eye under ambient light. The detection of Hg2+ by using the ADLCs was real time (responses within 20 s), highly specific, reusable and insensitive to pH change, and its activity was able to maintain more than 3 months. In addition, we demonstrated that the ADLCs could be used to detect Hg2+ in tap water, pond water, river water and seawater. Because the free motion of LC droplets is restricted in ADLCs, it could be a precise and convenient approach for the qualitative and quantitative determination of the signals of LC droplets in a series of experiments, which enhanced the reliability of the LC droplets-based sensing platform.
關鍵字Agarose dispersed liquid crystals;Agarose;Liquid crystal-based sensor;Liquid crystal droplets;5CB;Detection of mercuric ion
語言英文(美國)
ISSN1568-5675
期刊性質國外
收錄於SCI;
產學合作
通訊作者
審稿制度
國別中華民國
公開徵稿
出版型式,電子版,紙本
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