FIG 2.

Most MPs accumulate to approximately equivalent levels within the staphylococcal membrane. Cell membranes were isolated from bacteria grown in the presence of 5 μM concentrations of the various MPs highlighted in this study. Samples were normalized based on protein content and analyzed for the accumulation of the metal ions unique to each MP using ICP-MS. Error bars represent standard deviations of the results from triplicate samples. The asterisk (*) denotes samples with decreased ion accumulation (P < 0.05) as determined by a two-tailed Student's t test.