Fig. 1From: Understanding cellular internalization pathways of silicon nanowiresOptical microscopy images of SiNW-NH2 after a 37 °C incubation and b 4 °C incubation (bottom) with CHO-β cells. The images of control group, after 3 h of incubation group, after 5 h of incubation group, and after 10 h of incubation group are displayed, respectively. Scale bars 20 µmBack to article page