Figure 1
From: Comparison of non-crystalline silica nanoparticles in IL-1β release from macrophages
Morphology of various non-crystalline silica particles. TEM-micrographs of the particles; using Philips CM30; FEG, 300 kV, are presented. A) Fumed silica (Aerosil 200, scale bar: 50 nm) B) Fused silica (Suprasil, scale bar 200 nm) before wet sedimentation C) 50 nm monodisperse silica (Si50, scale bar: 100 nm) D) 500 nm monodisperse silica (Si500, scale bar: 1 μm).