Biogenic synthesis, optimisation and antibacterial efficacy of extracellular silver nanoparticles using novel fungal isolate Aspergillus fumigatus MA
| Autor: | Manjit K. Selwal, Krishan K. Selwal, Vikas Sarsar |
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| Rok vydání: | 2016 |
| Předmět: |
Cell Extracts
Silver Materials science Cell Survival Analytical chemistry Metal Nanoparticles Nanoparticle 02 engineering and technology Bacterial Physiological Phenomena 010402 general chemistry 01 natural sciences Silver nanoparticle Aspergillus fumigatus chemistry.chemical_compound Materials Testing Particle Size Electrical and Electronic Engineering Fourier transform infrared spectroscopy Surface plasmon resonance Research Articles biology Green Chemistry Technology 021001 nanoscience & nanotechnology biology.organism_classification Anti-Bacterial Agents 0104 chemical sciences Electronic Optical and Magnetic Materials Silver nitrate Treatment Outcome chemistry Transmission electron microscopy 0210 nano-technology Antibacterial activity Biotechnology Nuclear chemistry |
| Zdroj: | IET Nanobiotechnol |
| ISSN: | 1751-875X 1751-8741 |
| Popis: | To eliminate the elaborate processes employed in other non‐biological‐based protocols and low cost production of silver nanoparticles (AgNPs), this study reports biogenic synthesis of AgNPs using silver salt precursor with aqueous extract of Aspergillus fumigates MA. Influence of silver precursor concentrations, concentration ratio of fungal extract and silver nitrate, contact time, reaction temperature and pH are evaluated to find their effects on AgNPs synthesis. Ultraviolet–visible spectra gave surface plasmon resonance at 420 nm for AgNPs. Fourier transform infrared spectroscopy and X‐ray diffraction techniques further confirmed the synthesis and crystalline nature of AgNPs, respectively. Transmission electron microscopy observed spherical shapes of synthesised AgNPs within the range of 3–20 nm. The AgNPs showed potent antimicrobial efficacy against various bacterial strains. Thus, the results of the current study indicate that optimisation process plays a pivotal role in the AgNPs synthesis and biogenic synthesised AgNPs might be used against bacterial pathogens; however, it necessitates clinical studies to find out their potential as antibacterial agents. |
| Databáze: | OpenAIRE |
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