Colorimetric and fluorescent sensing of pyrophosphate in 100% aqueous solution by a system comprised of rhodamine B compound and Al3+ complex

Abstract

We developed a simple dual signal (color and 'Off-On' fluorescent change) ensemble system based on the complex between a rhodamine derivative 1 and Al(3+) for the detection of pyrophosphate (PPi) in 100% aqueous solutions. The complex between the rhodamine compound and Al(3+) was utilized as a chemosensing ensemble for the first time. The ensemble showed highly sensitive and selective fluorescent and colorimetric response to pyrophosphate among the anions in 100% aqueous solutions and no interference of the potent biological competitors including ATP, ADP, and phosphate for the detection of PPi in 100% aqueous solutions at pH 7.4.

A novel ratiometric fluorescent probe for detection of Fe3+ by rhodamine–quinoline conjugate

“…detection limit 3σ/λ, where σ is the standard deviation of blank measurements, and λ is the slope between intensity versus sample concentration [33][34].…”

“…Rhodamine and its derivatives are a kind of classic fluorescent dye, which is extensively suitable to act as fluorescent chromophores because of their excellent photo physical properties such as high extinction coefficients, excellent quantum yields and relatively long emission wavelengths in the visible region [16][17][18]. Thus, rhodamine-based probes have been attracting the interest of scientists and widely used to the detection of various metal ions [19][20][21][22].…”

Recognition of Mg2+ and Zn2+ based on a naphthalene-based fluorescent probe by regulating solvents

“…Where r was the standard deviation of blank measurements, and k was the slope between intensity versus sample concentration [28].…”

Bis-Schiff base as a donor–acceptor fluorescent probe: Recognition of Al3+ ions in near 100% aqueous solution

“…Even if there are some of reported Al 3+ sensors, the majority of them worked well only in organic or a mixture of organic solvent and water which are difficult to detect the submicromolar concentration of the Al 3+ in environment [24][25][26][27][28][29]. The design and synthesis of fluorescent sensors in water or in near 100% aqueous solution is still a challenge [30].…”