Evaluation of the ability of yeast Saccharomyces cerevisiae to biosynthesis of silver nanoparticles (original) (raw)

2012

Abstract

Background: Metal nanomaterials are unique because they show optical properties that depend on such physical properties as size, shape, and interparticle spacing. Their unique size-dependent property makes these materials better-quality in many areas of human activity. Biosynthesis of nanomaterials has been recently the aim of precious studies due to the environment-friendly nature of the biological processes and microorganisms such as fungi have been re-explored as potential bio-factories rather than the causing agents of humans and plants infections. The enzymatic activity of yeast presents them as highly competent microorganisms to precipitate of nanoparticles in external environment of the cell. This considerable ability has recently considered as worthy, applicable and available candidates for synthesis of smaller nano-sized particles. Materials and methods: A standard strain of Saccharomyces cerevisiae PTCC 5209 was grown in YPD medium. The yeasts were exposed to 2 m mol l⁻¹ o...

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