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Anti-biofilm activity of AgNPs on P. melaninogenica and A. pyogenes. (A) P. melaninogenica and A. pyogenes were incubated with various concentrations of AgNPs. Anti-biofilm activity was measured using 96-well flat-bottom polystyrene tissue culture plates. (B) P. melaninogenica and A. pyogenes cells were incubated with 0.8 and 1.0 μg/mL of AgNPs respectively for 24 h.
