FIG. 2.

The dissolution of Ag⁺ from AgBG in the presence and absence of S. aureus. Different amounts of AgBG were added to nutrient broth, and the medium was then inoculated with S. aureus to a density of 5 × 10⁷ bacteria ml⁻¹. Cultures with (×) and without (□) S. aureus were then incubated at 30°C for 20 h under conditions identical to those described in the legend to Fig. 1. The Ag⁺ content of the culture medium was then determined by ICP analysis as described in Materials and Methods. Error bars represent ±1 standard deviation.