Fig. 5From: Growth of a Novel Nanostructured ZnO Urchin: Control of Cytotoxicity and Dissolution of the ZnO UrchinSurface morphology of substrate obtained by AFM. a Si + Au + ZnO urchin2 height. b Si + Au + ZnO urchin2 corresponding 3D image. c Si + Au + ZnO urchin2 + PVDF-HFP height. d Si + Au + ZnO urchin2 + PVDF-HFP corresponding 3D imageBack to article page