Recent Advances in Graphene Quantum Dots as Bioimaging Probes

The emerging graphene quantum dots (GQDs) have gained tremendous attention for their enormous potential in biological applications, owing to their unique and tunable photoluminescence properties, exceptional physicochemical features, high biocompatibility, small sizes and low costs. This mini review aims to update the latest results in rapidly evolving bioimaging research and to provide critical insights into exciting future developments. We firstly provide a brief review of their synthesis and optical properties and then place emphasis on both in vitro and in vivo imaging applications.