Fig. 7From: Overcoming the blood–brain barrier for the therapy of malignant brain tumor: current status and prospects of drug delivery approachesDrug loading of VLPs and their application for brain tumor delivery: A Schematic illustration of drug loading into VLPs. B TEM images of EPI@gVLPs and micro-PET-MR images of mouse brain tumors, demonstrating the effect of tumor inhibition (scale bar = 20 nm, inset: 10 nm). Adapted with permission from Ref.[228]. C TEM images of VLPs and bioluminescent imaging, demonstrating the effect of tumor inhibition (scale bar = 100 nm, inset: 10 nm). Adapted with permission from Ref. [233]Back to article page