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Fluorescent and electrochemical detection of Cu (II) ions in aqueous environment by a novel, simple and readily available AIE probe
Journal of Photochemistry and Photobiology A: Chemistry ( IF 4.3 ) Pub Date : 2020-06-17 , DOI: 10.1016/j.jphotochem.2020.112702
Erman Karakuş , Simay Gunduz , Lokman Liv , Turan Ozturk

We have devised a novel and fluorescent chemodosimeter (ANT-Fe), possessing an anthracene scaffold as a fluorophore and ferrocene as a redox active unit for selective and sensitive detection of Cu2+ ions in aqueous media. Its synthesis was realized by a simple combination of two commercially available compounds, 2-aminoanthracene and ferrocenecarboxaldehyde, in one-step without required column chromatography for the purification process. The probe offers distinct properties such as aggregation induced emission, dual sensing mode of fluorometric “turn-off” and electrochemical signaling with cathodic shift, high selectivity towards Cu2+ ions, fast response time and low detection limit (2.5 ppb) via Cdouble bondN bond hydrolysis. Detection of Cu2+ ions by ANT-Fe adsorbed on a test paper system with the naked eye as a practical application is also successfully reported.



中文翻译:

通过新型,简单易用的AIE探针对水环境中的Cu(II)离子进行荧光和电化学检测

我们设计了一种新颖的荧光化学计量仪(ANT-Fe),具有蒽骨架作为荧光团,二茂铁作为氧化还原活性单元,用于选择性和灵敏地检测水性介质中的Cu 2+离子。它的合成是通过简单地将两种市售化合物2-氨基蒽和二茂铁甲醛进行简单组合而实现的,无需纯化过程即可使用柱层析。该探针具有独特的特性,例如聚集诱导发射,荧光“关断”的双重传感模式和带有阴极移位的电化学信号,对Cu 2+离子的高选择性,快速响应时间和通过C的低检测限(2.5 ppb)双键N键水解。还成功地报道了通过肉眼吸附在试纸系统上的ANT-Fe检测Cu 2+离子的实际应用。

更新日期:2020-06-17
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