Toward minimizing bacterial colonization of surfaces. we present a one-step etching technique that renders aluminum alloys with micro- and nano-scale roughness. Such a multi-scale surface topography exhibited enhanced antibacterial effect against a wide range of pathogens. Multi-scale topography of commercially grade pure aluminum killed 97% of Escherichia coli and 28% of Staphylococc... https://www.animationbengal.com/?w=super-price-johnny-cash-at-folsom-prison-fashion-great-buy