Herein, an easy and effective ratiometric fluorescent nanoprobe for the selective detection of Pb2+ and pyrophosphate (PPi) was developed based on label-free carbon dots (CDs).
Novel polyaniline/carbon dot nanocomposites have been synthesized using a simple method, and a PANI/Cdot “off–on” fluorescent probe has been constructed for the simple, ultrasensitive and selective detection of Hg2+ in aqueous media.
A probe based on the phenothiazine–acridine orange conjugate (Ptz–AO) has been designed and synthesized for the sensitive and selective detection of HOCl.