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. 2020 May 19;15:3551–3562. doi: 10.2147/IJN.S246484

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© 2020 Mazur et al.

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Differences in stability of citrate and Tween-stabilized silver nanoparticles in bacterial growth medium.

Notes: (A) UV-Vis spectrum of citrate-stabilized silver nanoparticles before and after addition of Mueller-Hinton Broth II medium. Metallic silver precipitation is accompanied by suppression of characteristic nanoparticle-associated plasmon resonance spectrum; (B) UV-Vis spectrum of Tween-stabilized silver nanoparticles before and after addition of Mueller-Hinton Broth II medium. Strong plasmon resonance absorption band in the range of 400 nm confirms the presence of native metal nanoparticles.

Abbreviations: MHB II, Mueller-Hinton Broth II; SNPs, silver nanoparticles