Figure 4

Flex-DBD device effectively reduces bacterial load and its effect is synergistic with hydrogen peroxide. (a) Aluminum surface inoculated with droplets of E. coli culture and stamped (“treated” photo). (b) Textile surface inoculated with E. coli (OP50-GFP) and stamped. (c) Reduction in the concentration of the E. coli colony forming units for two strains of E. coli. log10(No/N), where No is the number of CFU/ml surviving in the untreated samples, N is the number of surviving CFU/ml that remain after the treatment for 10, 30, 90, and 270 s. Common scale bars in a and b are 1 cm. The error bars are one standard deviation.