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Antimicrobial activity Col-AgNPs against S. aureus and P. aeruginosa. Collagen hydrogels containing AgNPs in contact with P. aeruginosa (a) and S. aureus (b). The % CFU/mL of each bacterium was studied during 7 days (c,d) for collagen control (Col, black), Col-AgNPs 67 mg/g (green), Col-AgNPs 6.7 mg/g (red) and Col-AgNPs 0.67 mg/g (blue). Results are expressed as mean ± SD from triplicate experiments.
