Recent Progress in Fluorescent Probes For Metal Ion Detection

Abstract

All forms of life have absolute request for metal elements, because metal elements are instrumental in various fundamental processes. Fluorescent probes have been widely used due to their ease of operation, good selectivity, high spatial and temporal resolution, and high sensitivity. In this paper, the research progress of various metal ion (Fe3+,Fe2+,Cu2+,Zn2+,Hg2+,Pb2+,Cd2+) fluorescent probes in recent years has been reviewed, and the fluorescence probes prepared with different structures and materials in different environments are introduced. It is of great significance to improve the sensing performance on metal ions. This research has a wide prospect in the application fields of fluorescence sensing, quantitative analysis, biomedicine and so on. This paper discusses about the development and applications of metal fluorescent probes in future.

Pyrene Functionalized Luminescent Phenylalanine for Selective Detection of Copper (II) Ions in Aqueous Media

“…-MY19329220, respectively, and uorescence spectra were measured on a Fluoromax 4CP plus spectro uorometer with a 10 mm quartz cell at 25 o C. The melting point was measured using an EZ-Melt (automated melting point apparatus). 1 H and 13 C-NMR spectra were recorded on a JEOL AL 300 FT-NMR at an operating frequency of 500 MHz ( 1 H) and 126 MHz ( 13 C), respectively. Spectrometer operation at 500 MHz and 126 MHz in DMSO-d 6 solutions respectively are given in parts per million (ppm) related to Tetramethyl silane (TMS, δ = 0.00ppm), and splitting pattern designated as s (singlet), d (doublet), t(triplet).…”

“…Recently, various uorescent chemosensors have been synthesized and utilized for sensing of different metal ions. 13 On comparing uorescence with other competitive methods like ICP-MS, atomic absorbance spectroscopy (AAS), 14 Flame atomic absorption spectrometry(FAAS), their easy operation technique, detection of various metals even at their sublethal concentration, fast response, and cost e ciency give us the possibility for their application. 15 Fluorescence-based chemosensors are promising for the sensitive and selective testing of heavy metal ions, which act as biological and environmental hazards.…”

An off-on-off fluorescence probe based on a pyrazole derivative for Al3+ and Fe3+ detection

“…8–12 As a transition metal ion, Fe 3+ plays a significant role in the process of human metabolism and directly participates in the transportation of oxygen. 13–16 However, excessive Fe 3+ storage in the body is related to various diseases, such as hemochromatosis, hepatitis, anemia, diabetes and some tumors. 17–21 Therefore, effectively monitoring trace amounts of Al 3+ and Fe 3+ is an important research hotspot.…”

Rapid Detection of Ag (I) via Size Induced Photoluminescence Quenching of Biocompatible Green Emitting L-Tryptophan Scaffolded Copper Nanocluster

“…Even though detection limits of some of these techniques can reach up to 0.1 nM, they are less favoured as they are costly, require cumbersome sample preparation, complicated and sophisticated instrumentation, complex detection process and trained personnel [49]. Fluorescent probes on the other hand are more favoured as sensors as they are rapid and user friendly [50,51]. Various fluorescent probes have been developed as sensors for Ag(Ⅰ) using organic templates [52], quantum dots [53] and nanoparticles [39,43,54].…”