... alumina fabricated by singlestep anodization process. Micron 2010, 41: 560.6. Masuda H, Fukuda K: Ordered metal nanohole arrays made by a two-step replication of honeycomb structures of anodic alumina. ... arrays of 1000 μm length by anodization of titanium foil: phenol red diffusion. J Phys Chem C 2007, 111: 14992.25. Bu SJ, Jin ZG, Liu XX, Yang LR, Cheng ZJ: Synthesis of TiO2porous thinfilm by ... TNPstructures with uniform and paralle l nano-channelsusing a two-step anodizing method. By changing thenature of electrolyte during second-step anodization, weobtained different morphologies of TiO2nanostructures.Furthermore,...