Binding of inorganic cations by p-sulfonatocalix[4]arene monitored through competitive fluorophore displacement in aqueous solution.
A new working principle for detecting inorganic cation binding by water-soluble calix[4]arenes involves the displacement of a fluorescent azoalkane as guest. Fluorescence regeneration is observed for various metal ions, and binding of monovalent cations (alkali and ammonium) to p-sulfonatocalix[4]arene is detected and quantified for the first time.
Bakirci
Hüseyin
H
School of Engineering and Science, International University Bremen, Campus Ring 1, 28759 Bremen, Germany.
Koner
Apurba L
AL
Nau
Werner M
WM