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Confocal microscopic images of the biofilms of P. aeruginosa PAO1 and S. marcescens MTCC 97 in the absence and presence of AuNPs-CA. (A) Control P. aeruginosa PAO1; (B) P. aeruginosa PAO1 treated with 200 μg/mL AuNPs-CA; (C) control S. marcescens MTCC 97; and (D) S. marcescens MTCC 97 treated with 200 μg/mL AuNPs-CA.
