Antimicrobial activity of spherical silver nanoparticles prepared using a biocompatible macromolecular capping agent: evidence for induction of a greatly prolonged bacterial lag phase

Table 2 Drop plate growth of Staphylococcus aureus on solid media in the presence of equivalent volumes (20 μL) of various Np concentrations.

Averages associated with different letters are significantly different at the p = 0.05 level (ANOVA & multiple range test performed on both log- transformed {null values were excluded} and non-log-transformed or linear data). The lowest effective concentration (~ 392 nM) provides a Np:CFU ratio of ca. 10¹¹.

ISSN: 1477-3155