Figure 2From: Cytotoxic effects of ZnO hierarchical architectures on RSC96 Schwann cellsTEM images of the ZnO hierarchical architectures used for the cytotoxic assessment on RSC96 Schwann cells. (a) ZnO NPs, (b) hollow ZnO microspheres, and (c) prism-like ZnO, and (d) flower-like ZnO.Back to article page