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Antibacterial activities of aminochitosan, quaternized aminochitosan 1, quaternized aminochitosan 2 and quaternized aminochitosan 3 membranes against (a) E. coli, (b) P. aeruginosa, (c) B. cereus and (d) S. aureus. All measurements were accomplished in triplicate (n = 3), and data obtained are expressed as means and standard deviations (±SD).
