Biofilm Inhibition and Antiviral Response of Cold Sprayed and Shot Peened Copper Surfaces: Effect of Surface Morphology and Microstructure

Antibacterial properties of copper against planktonic bacteria population are affected by surface microstructure and topography. However, interactions with in a biofilm state less studied. This work aims at better understanding the difference inhibition bulk, cold-sprayed, shot-peened surfaces gaining further insights on underlying mechanisms using optical scanning electron microscopy to investigate topography surfaces. The ability is reported for all Results show that performance cold sprayed copper, while initially better, decreases time results an almost identical than as-received after 18h incubation time. samples rough ultrafine demonstrated enhanced control, especially 18 hr. control were explained diffusion rates concentration ions interaction between these biofilm, plays role attachment early state. Furthermore, data suggest key antiviral activity materials tested, smooth being most efficient.