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. Author manuscript; available in PMC: 2009 Oct 27.
Published in final edited form as: Nanobiotechnology. 2007 May 1;3(2):55–65. doi: 10.1007/s12030-008-9007-z

Figure 2.

Figure 2

Relative ratio of live to dead bacteria observed using the BacLight™ Live/Dead fluorescence assay within the culture population compared to initial bacteria inoculating density (100%) in vitro for silver nitrate (triangle symbol) and silver nanoparticles (bars shown at various nanoparticle aqueous extraction times). All nanoparticle aqueous extracts allowed bacterial growth beyond the 100% “LIVE” Pseudomonas aeruginosa control sample, possibly due to the confounding intrinsic fluorescence from the silver nanoparticles remaining within the bacterial cell or cell wall. All silver nitrate-treated (positive control) cultures (line connecting triangles) decreased with increasing silver ion concentration in the media.