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. 2012 Jun 13;14(1):7–18.

Table 3.

MIC and MBC or MFC (µg/mL) of colloidal silver nanoparticles, pyocyanine and mixture of pyocyanine-colloidal silver nanoparticles for various microorganisms


Bacterial isolates Colloidal silver nanoparticles Pyocyanin Mixture

S. aureus 3.5(3.5) 56(56) 2-25(2-25)
E. coli 6(8) 56(56) 4-25(4-25)
P. aeruginosa 9.5(13) R(R) *
C. albicans 12(20) 100(120) 4-50(4-50)

*No synergistic antimicrobial effects on P. aeruginosa.

R: Resistant.