A novel reaction-based fluorescent probe for sensitive and selective detection of Cu 2+

Revealing the Hydrolysis Mechanism of a Hg2+-Reactive Fluorescein Probe: Novel Insights on Thionocarbonated Dyes

“…It is worth mentioning that the awareness acquired on the importance of autohydrolysis can also be applied to other metal ion probes exploiting hydrolysis in their detection mechanism, such as Cu 2+ . 34,35 When 2 equiv of Hg 2+ are added to the reaction medium, fluorescein emission at 516 nm becomes clearly distinguishable as early as 5 min following Hg 2+ addition, reaching an ∼80-fold increase after 90 min (Figure 2B). Although not thoroughly discussed in previous reports, the lack of a plateau within 10 min of Hg 2+ addition has been noted as a common feature of thionocarbonate-based probes.…”

“…Thus, compound 1 ’s spontaneous reaction with water is not unexpected, and observation of the latter provides additional insight pertaining to the mechanisms behind the release of the alcohol-exposed fluorophore upon Hg 2+ sensing. It is worth mentioning that the awareness acquired on the importance of autohydrolysis can also be applied to other metal ion probes exploiting hydrolysis in their detection mechanism, such as Cu 2+ . , …”

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

“…Excess amount of copper also affects the plant in terms of victimization of physiological arrest, stunted development, and even death. [23][24][25] Moreover Copper is widely used in several agriculture and industrial applications, that causes copper as a major pollution source in the environment. 26,27 The acceptance level of copper in drinking water is 2mgL − 1 (30µM) recommends by World health organization (WHO).…”

An ESIPT solvatochromic fluorescent and colorimetric probe for sensitive and selective detection of copper ions in environmental samples and cell lines

“…8 Furthermore, copper is a serious environmental contaminant as a consequence of a lack of appropriate management of its extensive use in modern agriculture and industry. 9 Copper is essential in a certain amount for the maintenance/functioning of human health, however, it is seriously harmful if ingested by human in excess amounts, which can lead to the appearance of symptoms such as diarrhoea, vomiting, stomach upset, and can even affect organs such as the liver and kidneys. 10,11 Considering these harmful consequences, the monitoring agency Environmental Protection Agency (EPA) have set a permissible limit of copper concentration in drinking water as 20 µM.…”