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A small molecule fluorescent probe for mercury ion analysis in broad low pH range: Spectral, optical mechanism and application studies. | LitMetric

A small molecule fluorescent probe for mercury ion analysis in broad low pH range: Spectral, optical mechanism and application studies.

J Hazard Mater

Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, PR China. Electronic address:

Published: February 2022

AI Article Synopsis

  • Researchers are developing new fluorescent probes for detecting mercury ions due to its harmful effects on the environment and human health.
  • The newly designed Naph-NSS probe can effectively monitor mercury ions in low pH conditions (2.0 to 7.0), which is a common issue in industrial wastewater.
  • The probe shows high sensitivity and selectivity for mercury ions, with enhanced fluorescence upon binding, and can be used in quick detection methods like paper strips and in various biological and environmental samples.*

Article Abstract

Development of new fluorescent probes for mercury ion analysis in environmental or living organism is undergoing quick growth due to its detrimental toxicity to environmental safety, ecological security, and human being. However, in most cases, the industrial waste water is acidic whereas it remains a great challenge to real-time monitor mercury ion directly at low pH using small molecule fluorescence probe. In this study, we have successfully designed and synthesized the Naph (1, 8-Naphthalimide derivative) -based small molecule probe termed as Naph-NSS capable of monitoring mercury ion in a broad range at low pH (from 2.0 to 7.0). The solid spectral studies demonstrated the high sensitivity and selectivity of the probe towards mercury ion among various species. After binding with Hg, the fluorescence of Naph-NSS greatly enhanced, and the mechanism of which was investigated by DFT studies. The probe was able to be loaded on paper strip for instant and fast detection of mercury ions. In addition, the probe is also suitable for detection of mercury ion in environmental samples, living cells and in vivo.

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Source
http://dx.doi.org/10.1016/j.jhazmat.2021.127701DOI Listing

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