Fig. 5From: Recent advances in carbon quantum dots for virus detection, as well as inhibition and treatment of viral infectionCopyright © 2016, American Chemical SocietyTop images are photographs of CQDs samples A–D in aqueous solution under daylight (left) and UV light (right). The bottom four graphs show their absorption curves and their PL emission spectra under excitation with light of different wavelengths [146]. Reproduced with permission.Back to article page