A New “Turn-on” Naphthalenedimide-Based Chemosensor for Mercury Ions with High Selectivity: Successful Utilization of the Mechanism of Twisted Intramolecular Charge Transfer, Near-IR Fluorescence, and Cell Images

A New “Turn-on” Naphthalenedimide-Based Chemosensor for Mercury Ions with High Selectivity: Successful Utilization of the Mechanism of Twisted Intramolecular Charge Transfer, Near-IR Fluorescence, and Cell Images

For the first time, a new near-IR “turn-on” fluorescent chemosensor with high selectivity for Hg2+ ions was designed according to the twisted intramolecular charge transfer (TICT) mechanism. The selective fluorescence enhancement effect can be optimized by modulating the solvent systems. And this na...

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Veröffentlicht in:Organic letters 2012-04, Vol.14 (8), p.2094-2097
Hauptverfasser: Li, Qianqian, Peng, Ming, Li, Huiyang, Zhong, Cheng, Zhang, Liang, Cheng, Xiaohong, Peng, Xiaoniu, Wang, Ququan, Qin, Jingui, Li, Zhen
Format: Artikel
Sprache:eng
Schlagworte:
HeLa Cells
Humans
Imides - chemistry
Mercury - analysis
Molecular Structure
Naphthalenes - chemistry
Spectrophotometry, Infrared
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Zusammenfassung:For the first time, a new near-IR “turn-on” fluorescent chemosensor with high selectivity for Hg2+ ions was designed according to the twisted intramolecular charge transfer (TICT) mechanism. The selective fluorescence enhancement effect can be optimized by modulating the solvent systems. And this naphthalenedimide-based sensor with long wavelength absorption and emission can be used to image intracellular Hg2+ ions in living Hela cells.
ISSN:1523-7060
1523-7052
DOI:10.1021/ol300607m