Comparison of the antibacterial effect of a copper-coated surface on Staphylococcus epidermidis and Pseudomonas putida in different physiological states

Abstract The antimicrobial effect of Cu is dependent on several factors, including the physiological state test-cultures. present study aimed to compare antibacterial newly developed Cu-coated surface, using bacterial cultures Staphylococcus epidermidis and Pseudomonas putida harvested at exponential (6h) stationary (24h) phases growth as well from a colony. Growth kinetics cell morphology were characterised for each culture. colony forming units log reduction values surface exponential, phase, 1.08, 2.85, 2.14, respectively, S. , while 1.57, 3.95, 3.14, P. . reduced signal ATP bioluminescence in both with more pronounced inhibition being cells phase growth. data indicated that early stage are resistant towards surfaces than This fact great importance estimating efficiency coatings.