Recent progress in cadmium fluorescent and colorimetric probes

Abstract

Cadmium is a heavy metal which exists widely in industrial and agricultural production and can induce a variety of diseases in organisms.

Recent Progress in Fluorescent Probes For Metal Ion Detection

“…In recent years, researches on Cd 2+ ion fluorescent probes include the following categories: Quinolone-based, coumarin-, benzothiazole based, rhodamine-based, dansyl based, and diarylethylene based Cd 2+ fluorescent sensor, There are also other small organic molecules based Cd 2+ sensor and nanosensor-based Cd 2+ fluorescent sensor. In addition, fluorescence and colorimetric nano Cd 2+ sensors, such as metal-organic framework (MOF), quantum dots (QD), nanoclusters (NCs) and nanoparticles (NPs), have also made good progress in recent years ( Shi et al, 2021 ).…”

Cd2+-selective fluorescence response of TQEN (N,N,N′,N′-tetrakis(2-quinolylmethyl)ethylenediamine) derivatives bearing ether oxygen-binding sites

“…Since both cadmium and zinc are group-12 elements, small differences in ionic radius between Cd 2+ and Zn 2+ need to be visualized and amplified by the rational design of fluorescent probes. Although several Cd 2+ -specific fluorescent probes have been reported, [10][11][12][13][14][15][16][17][18][19][20] a new approach for molecular design based on logical considerations, especially by small changes in the molecular structures, is still demanded.…”

A Water Soluble 2-Phenyl-5-(pyridin-3-yl)-1,3,4-oxadiazole Based Probe: Antimicrobial Activity and Colorimetric/Fluorescence pH Response

“…Colorimetric/fluorescent tools revolutionized the ability to probe biological dynamics at the cellular level on several platforms: small-molecule dyes, metal complexes, and fluorescent proteins [ 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 ]. The oldest family of photoluminescence (PL) sensors encompass small organic molecules [ 14 , 19 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ], still sought-after but in a different perspective. Today’s demand for responsive multifunctional tools pushes to collaborative work between organic synthesis and biological and biomedical requirements.…”