Recent Development in Fluorescent Probes for the Detection of Hg2+ Ions

AbstractMercury, a highly toxic heavy metal, poses significant environmental and health risks, necessitating the development of effective and responsive techniques for its detection. Organic chromophores, particularly small molecules, have emerged as promising materials for sensing Hg2+ ions due to their high selectivity, sensitivity, and ease of synthesis. In this review article, we provide a systematic overview of recent advancements in the field of fluorescent chemosensors for Hg2+ ions detection, including rhodamine derivatives, Schiff bases, coumarin derivatives, naphthalene derivatives, BODIPY, BOPHY, naphthalimide, pyrene, dicyanoisophorone, bromophenol, benzothiazole flavonol, carbonitrile, pyrazole, quinoline, resorufin, hemicyanine, monothiosquaraine, cyanine, pyrimidine, peptide, and quantum/carbon dots probes. We discuss their detection capabilities, sensing mechanisms, limits of detection, as well as the strategies and approaches employed in their design. By focusing on recent studies conducted between 2022 and 2023, this review article offers valuable insights into the performance and advancements in the field of fluorescent chemosensors for Hg2+ ions detection.Keywords: Chemosensorfluorescent probeHg2+ions AcknowledgmentsThe author express their sincere gratitude to the Principal of D.B.S. (PG) College Dehradun, Uttarakhand, India, for generously providing the necessary facilities. Additionally, the author would like to acknowledge the invaluable support received from the Central Library at IIT Roorkee, which enabled access to comprehensive resources and greatly contributed to the completion of this review.Disclosure statementThe authors declare no conflicts of interest.