One pot fabrication of fluorescein functionalized manganese dioxide for fluorescence “Turn OFF–ON” sensing of hydrogen peroxide in water and cosmetic samples

The fluorometric nanoprobe was fabricated via doping of fluorescein dye in MnO₂ nanosheets (FLS/MnO₂ NS) via facile co-precipitation method. It was used for analysis of H₂O₂ in different matrices through liberation of FLS after reduction of MnO₂ NS.