A sequential logic gate-based “smart probe” for selective monitoring of Cu2+, Fe3+ and CN−/F−via differential analyses

Abstract

A sequential logic gate-based probe has been constructed for the detection of Cu²⁺, Fe³⁺, CN⁻ and F⁻ at ppm levels which potentially meets real-world-challenges through a simple synthetic route, with rapid response, water based-activity, visualization by the naked eye, regenerative action, high selectivity and multiple readout for precise analysis.