Fig. 12From: Prospects on the nano-plastic particles internalization and induction of cellular response in human keratinocytesAccumulation of autophagy structures in the keratinocytes treated with a single-dose of NPs for 48 h and then incubated with fresh, NPs-free medium. a–d Ultrastructure of HaCaT cells exposed to NPs-1. e–h Ultrastructure of HaCaT cells exposed to NPs-2. White arrow heads indicate the autophagic structuresBack to article page