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. Author manuscript; available in PMC: 2012 May 1.
Published in final edited form as: Nanomedicine. 2010 Nov 19;7(3):305–314. doi: 10.1016/j.nano.2010.11.003

Figure 4.

Figure 4

Colonies count of E. coli ATCC 25922 expressed as a percentage of the number of colonies grown on silver-free LB agar plates. (A) Ag-SiO2 NPs at 0.1, 1, 10, and 100 μg/mL; (B) colloidal Ag NPs at 0.085, 0.85, 8.5, and 42.5 μg/mL. (C, D) FE-SEM images of (C) damaged E. coli ATCC 25922 and Ag-SiO2 NPs complex; (D) damaged cell surface of single E. coli bacterium in presence of Ag-SiO2 NPs.