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Antibacterial activity of hydrogels: (A) inhibition zone of S. aureus generated by PAA-PVP-7.5 and PAA-PVP-7.5-ZnO-2%. (B) inhibition zone of P. seudomonas generated by PAA-PVP-7.5 and PAA-PVP-7.5-ZnO-2%.(C) Bar graph responding to the size of the zone of inhibition formed around each disc.
