A review on fluorimetric and colorimetric detection of metal ions by chemodosimetric approach 2013–2021

A simple approach based on transmetalation for the selective and sensitive colorimetric/fluorometric detection of copper(ii) ions in drinking water

“…The colorimetric and fluorometric sensing of cations is an area of intense current interest. Various review contributions based on conventional organic chemosensors through metal coordination, [1][2][3] including Schiff-bases, 4,5 host-guest supramolecular chemistry, 6 including macrocycles as ion-pair receptors 7 and calixarenes, 8 aggregation-induced emission, 9 luminescent coordination polymers, 10 metal-organic frameworks, 11 metal nanoparticles, 12,13 quantum dots, 13 and sensing arrays, 14 or involving a chemodosimetric approach, 15,16 have been reported in the recent literature (regarding the last decade). This huge amount of research activity highlights the breadth and interest of this research field.…”

“…In this context, sensing of copper(II) ions is doubtless one of the most investigated topics. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] Besides these methods, a further approach for detecting cations is represented by transmetalation or metal exchange. 20,21 Thus, starting from a metal complex, sensing can be achieved via a cation-exchange mechanism exploiting optical spectroscopic changes, often fluorescence enhancement or quenching, upon transmetalation.…”

“…In this context, sensing of copper( ii ) ions is doubtless one of the most investigated topics. 1–19…”

NIR squaraine dyes for dual colorimetric and fluorescent determination of Fe3+, Cu2+, and Hg2+ ions

“…5,12 There are a large number of colorimetric and uorescent metal ion probes with various organic molecular platforms, including boron-dipyrromethene (BODIPY), rhodamine, uorescein, coumarin, and naphthimide (shown in Table S1 †), whose absorption and uorescence emission wavelength are usually in the ultraviolet and visible (UV-vis) regions. 13,14 In order to expand the application of the metal ion probes in biological systems, chromophores and uorophores such as cyanines, and squaraines (SQs) with near-infrared (NIR) absorption and uorescence emission properties have attracted more and more attention.…”

A pyrene–N-phenylparaphenylene diamine-based imine conjugate for the detection of trace amounts of water in organic solvents: real-time application in honey samples

“…Because it is less impacted by the external environment, the chemometric method of sensing exhibits excellent selectivity and sensitivity. 23 Based on the hydrolysis mechanism, PNPD demonstrated fluorimetric detection of water content in several organic solvents. In addition, a method for quantifying water content in real-time analysis has been developed.…”