A Magnetofluorescent Carbon Dot Assembly as an Acidic H2O2‐Driven Oxygenerator to Regulate Tumor Hypoxia for Simultaneous Bimodal Imaging and Enhanced Photodynamic Therapy

A magnetofluorescent Mn‐CD assembly is designed and prepared as an acidic H 2 O 2 ‐driven oxygenerator to regulate the hypoxic tumor microenvironment for simultaneous bimodal fluorescence/ T 1 ‐weighted magnetic resonance imaging and enhanced photodynamic therapy of solid tumors. This work demonstrates a new biomedical use of CDs and provides a versatile carbon nanomaterial candidate for multifunctional nanotheranostic applications.