To investigate the effects of the nanoporous anodic alumina(NAA) films with different pore diameters on the Hela cells migration, the Scanning Electron Microscope(SEM) and the Energy Dispersive X-ray Spectroscopy were used to characterize the microcosmic structure and chemical components of the NAA films respectively. The Hela cells were cultured in confocal dishes, divided into three groups(control group, 40-70 nm pore diameter group and 200-300 nm pore diameter group), to perform wound healing assay, rand...