A “turn-on” fluorescent and colorimetric chemodosimeter for selective detection of Au3+ions in solution and in live cellsviaAu3+-induced hydrolysis of a rhodamine-derived Schiff base

A chromogenic and “off–on” fluorogenic chemodosimeter (L) based on a naphthalene–rhodamine B derivative was designed, synthesized and characterized for the selective and sensitive detection of Au³⁺ions in mixed acetonitrile aqueous media.