Optical sensing of copper (II) ions using a biofunctional bolaamphiphile self-assembly: Selective binding of copper (II) ions to tyrosine moieties

A photoluminescent tyrosyl bolaamphiphilie self-assembly was used to detect copper (II) ions with high selectivity. The copper-phenol complex retarded photon energy transfer, leading to fluorescence quenching. Fluorescence spectroscopy and XPS analyses proved the formation of a copper-phenyl complex. Selectivity and reusability of the sensor platform were examined.