Journal of Nanomaterials / 2015 / Article / Fig 4

Research Article

The Effect of Charge at the Surface of Silver Nanoparticles on Antimicrobial Activity against Gram-Positive and Gram-Negative Bacteria: A Preliminary Study

Figure 4

The zones of inhibition against S. mutans when treated with positive AgNPs (a), neutral AgNPs (b), and negative AgNPs (c).
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(b)
(c)