Figure 6.

Antibacterial efficacy of the Au/AgNRs system in vivo. (A) Representative photograph of the MRSA (OD = 1)-infected wound from mice in three different treatment groups (Au/Ag (Etch), Au/Ag, and PBS) on days 1, 2, 4, and 6. (B) Corresponding areas of infected wound of the mice shown in A. (C) Bacterial counts showing the bactericidal action of etched Au/AgNRs. The quantity of viable bacteria in MRSA-infected wound tissue was measured with mean ± SD (N = 3) and calculated as log₁₀ CFU/g. The statistical significance was calculated with the Student’s t test; *, p < 0.05 versus the untreated control.