Culture Method-Dependent Variation in the Sensitivity of Escherichia coli to Silver Nanoparticles

Figure 1

UV/visible spectral study of green synthesized silver nanoparticles. (a) E. coli colony formation after 2 h incubation with silver nanoparticles. (b) Colony of E. coli after 24 h incubation with Ag-NPs. (c) UV spectrum of 24 h broth culture of E. coli with silver nanoparticles.