Characterization of silver nanoparticles produced by biosynthesis mediated by Fusarium oxysporum under different processing conditions

The goal of this study was the biosynthesis of silver nanoparticles (SNPs) mediated by the fungus Fusarium oxysporum , as well as the characterization of these nanoparticles including evaluation of the particles size and stability under different processing conditions. The results showed that the bi...

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Bibliographic Details
Published in:Bioprocess and biosystems engineering 2017-09, Vol.40 (9), p.1291-1303
Main Authors: Almeida, Édipo S., de Oliveira, Débora, Hotza, Dachamir
Format: Article
Language:English
Subjects:
Absorption spectroscopy
Alkanes
Aromatic hydrocarbons
Atomic absorption analysis
Atomic absorption spectroscopy
Atomic beam spectroscopy
Band spectra
Biosynthesis
Biotechnology
Chemistry
Chemistry and Materials Science
Cyclohexane
Emission spectroscopy
Environmental Engineering/Biotechnology
Ethers
Field emission microscopy
Food Science
Fourier transforms
Fungi
Fusarium
Fusarium oxysporum
Hydrocarbons
Industrial and Production Engineering
Industrial Chemistry/Chemical Engineering
Infrared spectroscopy
Nanoparticles
Proteins
Research Paper
Scanning electron microscopy
Silver
Single-nucleotide polymorphism
Spectral analysis
Spectrum analysis
Stability analysis
Transmission electron microscopy
Ultraviolet spectroscopy
Zeta potential
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Summary:The goal of this study was the biosynthesis of silver nanoparticles (SNPs) mediated by the fungus Fusarium oxysporum , as well as the characterization of these nanoparticles including evaluation of the particles size and stability under different processing conditions. The results showed that the biosynthesis produced silver nanoparticles having a mean size of 34 nm and zeta potential values below −30 mV at the conditions used, characterizing the nanoparticles as being stable in suspension. Ultraviolet–visible spectroscopy and flame atomic absorption spectroscopy confirmed the formation of silver nanoparticles and Fourier transform infrared spectroscopy detected the bands corresponding to the binding vibration of amide I and II bands of proteins in addition to the presence of cyclic alkanes, cyclohexane, ethers, and aromatic hydrocarbons. Finally, field emission scanning electron microscopy and transmission electron microscopy revealed the formation of spherical and well-dispersed SNPs.
ISSN:1615-7591
1615-7605
DOI:10.1007/s00449-017-1788-9