Carbon Nanodots Featuring Efficient FRET for Real‐Time Monitoring of Drug Delivery and Two‐Photon Imaging

10 ] However, the complexity of cellular microenvironments and the diverse release manner of drugs present substantial challenges to these existing DDS methods to provide versatile drug delivery and real-time monitoring in physiological sys-tems. Carbon nanodots (CDots) represent a new class of fl uo-rescence probes for imaging owing to their unique properties, such as non-blinking fl uorescence emission, water solubility, high cell permeability, excellent biocompatibility, and multi-photon absorption.