Fig. 8

Ex vivo brain imaging after 24 h of ND intravenous injection. Fluorescence microscope images of A 20 µL PBS-injected, B 20 µg/20 µL ND-injected group, C cortex, D hippocampus, and thalamus of 20 µg/20 µL ND-injected group. A–D are visualized using fluorescence microscope. E TPM image of the hippocampus of 20 µg/20 µL ND-injected group with high magnification. F dSTORM image reconstructed through 150 TPM images. White dotted boxes denote enlarged images of marked areas containing a single ND