Optical sensing composites for cysteine detection: Combining rhodamine-based chemosensors with up-conversion nanocrystals
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- 作者：Yu-qian Gao
- 关键词：Up-conversion nanoparticles ; Rhodamine chemosensor ; Cysteine ; Sensing
- 刊名：Sensors & Actuators: B. Chemical
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：238
- 期：Complete
- 页码：1293-1301
- 全文大小：2673 K
文摘
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Two rhodamine-derived chemosensors for cysteine optical sensing were reported.
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Up-conversion nanocrystals were prepared and used as excitation host.
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Efficient energy transfer between nanocrystals and chemosensors was confirmed.
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A simple recognition mechanism with binding stoichiometry of 1:1 was observed.
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Good selectivity and linear sensing behavior were obtained.