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The antimicrobial activity of different sizes of SNP with either no coating, a BSA coating or a CS coating in micrograms per milliliter (µg/mL). Values shown are the mean ± standard deviation. Clinical strains, 34 in number, (c = 20; e = 6; f = 1, and k = 7) were assayed. Asterisks indicate significant difference (p < 0.05).
