Design of anion-selective PET probes based on azacryptands: the effect of pH on binding and fluorescence properties†
Abstract
Design of PET probes for anions working in an aqueous buffered solution is described. The design has been used to develop selective fluorescent probes for sulfate and pyrophosphate. The relationship between the selectivity of receptors towards anions, their conformation, fluorescence response and the pH of the solution has been studied in detail.