Fig. 1From: Silica nanoparticles induce neurodegeneration-like changes in behavior, neuropathology, and affect synapse through MAPK activationCharacterization of FITC-SiO2-NPs via TEM (a, b) and DLS (c). a Representative TEM image of the constructed NPs. Scale bar: 200Â nm. b Size distribution of the NPs. A total of 186 particles were measured in the TEM images. c Hydrodynamic size and zeta potential of the NP in PBS, culture medium, and water as determined by DLSBack to article page