Fig. 1From: Genotoxicity of micro- and nano-particles of kaolin in human primary dermal keratinocytes and fibroblastsSEM images of kaolin micro- and nano-particles. The reflected electron images of micro-particles (a; 4.8 μm) and nano-particles (b; 0.2 μm) were obtained at E = 5 kV, × 3000. Scale bar indicates 1 μm. c: The size distributions of the particlesBack to article page