Colorimetric and fluorescent Schiff base sensors for trace detection of pollutants and biologically significant cations: A review (2010–2021)

An overview of Schiff base-based fluorescent turn-on probes: a potential candidate for tracking live cell imaging of biologically active metal ions

“…[44][45][46] Recently, we have reported on a simple acyclic salen Schiff base showing selective fluorescence turn-on response for the detection of Zn(II) ions in the nanomolar range, which is employed for confocal fluorescence microscopic imaging in HeLa cells. 47 Recognizing the importance of this hot research topic, many notable reviews have been published, [48][49][50] focusing on classifying fluorophore combinations rather than differentiating metal ion analytes. This review examines the recent advances in the development of Schiff base-based fluorescent turn-on chemosensors, including synthesis, design principle with photophysical properties, sensing mechanism, and analyte recognition studies with many parameters, primarily emphasizing on biological applications.…”

A review on photochemical sensors for lithium ion detection: relationship between the structure and performance

“…When the analyte binds to the guest acceptor, the photophysical properties of the sensor change through mechanisms such as photo-induced electron transfer (PET), intramolecular charge transfer (ICT), uorescence resonance energy transfer (FRET), etc. [67][68][69] Photochromic and uorescence compounds that have been used as lithium ion sensors have different adsorption mechanisms in the presence of lithium ions. These sensors have shown different behaviors according to their chemical structures.…”

“…When the analyte binds to the guest acceptor, the photophysical properties of the sensor change through mechanisms such as photo-induced electron transfer (PET), intramolecular charge transfer (ICT), fluorescence resonance energy transfer (FRET), etc. 67–69…”

Highly Selective Aminopyrazine‐Based Colorimetric Probe for “Naked‐Eye” Detection of Al3+: Experimental, Computational Studies and Applications in Molecular Logic Circuits

“…Quick and reliable detection of metal ions is presently an active field of current research due to its applications in diverse areas such as biological, clinical, chemical sciences etc. The growing demand of simple, quick and economical chemosensors for metal ions has drawn notable attentions by several research groups as reviewed recently [1][2][3][4]. Besides colorimetric and fluorimetric techniques, some other conventional methods also exist for the purpose of sensing such as electrochemical methods, atomic emissions spectrometry (AES), voltammetry, atomic absorptions spectrometry (AAS) etc.…”