Fig. 24From: Synthesis of graphene quantum dots and their applications in drug delivery(reprinted/reproduced with the permission of Ref. [199], copyright 2018, Carbohydrate polymers)SEM images of the a Cu-CMC/NPX and Cu-CMC/NPX/GQDs, b 10%, c 20%, d 30% GQDs content (insets are higher magnifications)Back to article page