Sarkar Soma, Roy Swapnadip, Saha R N, Panja Sujit S
Department of Chemistry, National Institute of Technology Durgapur, Durgapur, WB, 713209, India.
J Fluoresc. 2018 Jan;28(1):427-437. doi: 10.1007/s10895-017-2204-1. Epub 2017 Dec 28.
An efficient and highly selective pyrene-thiophene conjugate has been reported as a dual sensor for Hg and cysteamine (an important drug for genetic disorder). The sensor displays a turn-on fluorescence response towards Hg in a 2:1 stoichiometric ratio via excimer formation with a detection limit as low as of 30.6 nM. The excimer emission upon binding with Hg has been rationalized by experimental as well as theoritical studies. Moreover, the [probe-Hg] adduct functions as an efficient sensor for cysteamine. This sensing process happens via the extraction of Hg from the adduct. In this paper, change in emission properties of the receptor with varying pH and water content has also been explained. The sensing abilities of the sensor were examined in real water sample analysis. Therefore, the sensor can be used as an efficient and reusable fluorescent sensor for recognition of Hg in water.
据报道，一种高效且具有高选择性的芘 - 噻吩共轭物可作为汞和半胱胺（一种治疗遗传疾病的重要药物）的双重传感器。该传感器通过形成准分子以2:1的化学计量比显示对汞的开启荧光响应，检测限低至30.6 nM。通过实验和理论研究对与汞结合时的准分子发射进行了合理的解释。此外，[探针 - 汞]加合物可作为半胱胺的有效传感器。这种传感过程通过从加合物中提取汞来实现。本文还解释了受体在不同pH值和含水量下发射特性的变化。在实际水样分析中检测了该传感器的传感能力。因此，该传感器可作为一种高效且可重复使用的荧光传感器用于识别水中的汞。
