Doxorubicin loaded chitosan–ZnO hybrid nanospheres combining cell imaging and cancer therapy

We report chitosan-ZnO nanoparticles (CZNPs), which have enhanced photoluminescence stability and longer retention time in cells compared with pure ZnO QDs. These CZNPs can illuminate the cells, show the distribution of the nanospheres in the cell, and thus monitor the fate of the loaded drug, which enable these CZNPs to have a promising future in cell imaging and cancer therapy.