Rational design of a ratiometric fluorescent probe with a large emission shift for the facile detection of Hg2+

Abstract

A new ratiometric and colorimetric fluorescent probe for the highly selective, sensitive and facile detection of Hg(2+) has been rationally developed.

Selective chromo-fluorogenic detection of trivalent cations in aqueous environments using a dehydration reaction

“…Chemical reactions that induced an extension of conjugation were recently used as a mechanism for the preparation of fluorogenic probes for Hg 2+ cations 23 and reactive oxygen species. 24 Also, 1 H NMR measurements were carried out in order to assess the dehydration mechanism for the color changes observed in the presence of Cr 3+ , Fe 3+ , Al 3+ , Ga 3+ , In 3+ and As 3+ .…”

A selective colorimetric and ratiometric fluorescent chemosensor for detection of Al3+ ion

“…However, development of fluorescence ratiometric probes for metal ions has attracted a great deal of attention since they allow the measurement of emission intensities at two different wavelengths. Though many ratiometric chemosensors are reported [14][15][16][17], only a few sensors based on both colorimetric and ratiometric sensing have been reported for detection of Al 3 þ [18][19][20][21][22][23][24][25]. In this work, we designed a ratiometric probe (receptor 1) that displayed a selective colorimetric change and high ratiometric signals toward Al 3 þ among the other examined metal ions.…”

Energy Donor Effect on the Sensing Performance for a Series of FRET-Based Two-Photon Fluorescent Hg2+ Probes

“…Mercury is one of the most toxic heavy metal elements [1,2]. Studies have shown that exposure to mercury, even at very low concentrations, leads to various diseases in the digestive system, the nervous system, and especially the neurological system, which makes detection of mercury ions (Hg 2+ ) an attractive research area in the biological field [3,4].…”