Direct sensing of fluoride in aqueous solutions using a boronic acid based sensor

Abstract

Binding of the fluoride ion triggers aggregation of a pyreneboronic acid-catechol ensemble in acidic aqueous solutions, giving rise to intense excimer emission, allowing for sensitive fluoride ion sensing at ppm levels, with an apparent fluoride binding constant higher than 10(3) M(-1) which is unprecedented for boronic acid sensors in water.

A Bis(Boronic Ester)-Based Fluorogenic and Chromogenic Sensor for F-and Cu2+

“…Additional reason of boronic acids to act as anion sensors is its ability to exhibit Bronsted acidity as well . Therefore, several boronic acid and boronic ester based anion‐chemosensors (chromogenic, fluorogenic or both) have been reported; almost all of them are selective fluoride or cyanide sensors . Modulation of properties of boronic acids/esters in presence of cations may also take place if the appended moiety of such molecules can bind metal ions and if such modulation is selective, boronic acid/ester may behave also as cation sensor.…”

A novel ratiometric fluorescent probe for rapid detection of hydrogen peroxide in living cells

“…Several boronate-based probes react more slowly with H 2 O 2 compared to other reactive species (e.g., peroxynitrite and hypochlorite). [19][20][21] Some of them have been used to detect peroxynitrite [22][23][24] or benzoyl peroxide 25 instead of H 2 O 2 . On the other hand, the vast majority of these probes are intensity-based turn-on uorescent probes.…”

Ferrocene‐Boronic Acid–Fructose Binding Based on Dual‐Plate Generator–Collector Voltammetry and Square‐Wave Voltammetry

“…Boronic acids have emerged as key components in analytical processes and devices,1 for example, for the detection and monitoring of glucose levels2 and for the separation of glycated and glycosylated proteins,3 both of which are applications with considerable potential in medicinal technologies. Chemically, boronic acids are attractive, owing to their capability to reversibly form bonds to diols,4 quinols,5 α‐hydroxy‐carboxylates6 and a range of other hard nucleophiles, in particular fluoride7 and phosphate 8. New types of boronic acids have been developed to report binding events through fluorescence9 or electrochemical responses10 for operation in more opaque or non‐transparent media.…”