Cell permeable fluorescent receptor for detection of H2PO4− in aqueous solvent

Abstract

A new colorimetric fluorescent receptor for H(2)PO(4)(-) is reported in this communication. The receptor can detect dihydrogen phosphates optically by developing a color change from yellow to green. Acute spectral responses to H(2)PO(4)(-) in HEPES buffer (DMSO-HEPES 1:9) have been observed. The selectivity zone in terms of pH of the receptor for H(2)PO(4)(-) is attributed to the fitness in the acidity (pK(a)) of receptor with H(2)PO(4)(-). Hydrogen bonding plays the key role here which is confirmed by (1)H NMR titration. The receptor also has good potential for bio-imaging. The mode of interaction has also been established by ab initio calculation.

Cell permeable fluorescent colorimetric Schiff base chemoreceptor for detecting F− in aqueous solvent

“…In view of above we have planned to furthermore investigate the ability of PMP in detection of intracellular fluoride [31,[57][58][59][60][61]. For this study two types of cells viz.…”

Sequential Fluorescence Recognition of Molybdenum(VI), Arsenite, and Phosphate Ions in a Ratiometric Manner: A Facile Approach for Discrimination of AsO2–and H2PO4–

“…Different solvents like CH 3 COOC 2 H 5 , CHCl 3 , CCl 4 , and dichloromethane (DCM) are tested for optimum extraction efficiency (Figure ). The L has high Mo­(VI) extraction efficiency in ethyl acetate − (Figure ). The distribution coefficient is calculated using the equation D = C M (org)/ C M (aq), where C M (org) and C M (aq) are concentrations of Mo­(VI) in organic and aqueous phase after extraction.…”

“…The immobilization of M1 on silica (100–200 mesh) is performed following the literature procedure. ,− The mixture of M1 (0.65 g) and silica (7.3 g) is refluxed for 3 h in MeOH. After removal of solvent, the color of M1-immobilized silica becomes light orange.…”

A simple and dual responsive efficient new Schiff base chemoreceptor for selective sensing of F− and Hg2+: application to bioimaging in living cells and mimicking of molecular logic gates

“…The results furthermore suggest that NPMP can be purposefully used as a staining probe in detection of intracellular uorides from living cells. [32][33][34][35][36][37]…”