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The biofilm inhibition ratio of AgNPs prepared by Streptomyces sp. ASM23 cell supernatant (S) and cell filtrate (CF) against four clinical microbes (a) B. subtilis, (b) E. coli (c) S. aureus, and (d) P. aeruginosa. The bars on the graph represent the mean of triplicate, and SD. (e) Microtiter plate, (Ø) blank, (+R) positive result, and (−R) negative result.
