Extracellular biosynthesis of silver nanoparticles using cell filtrate of Streptomyces sp. ERI-3
By N. F. Zonooz, M. Salouti. 2011
124 citations recorded by the source corpus.
Abstract In this study, we present a biological method for synthesis of silver nanoparticles (AgNPs) using Streptomyces sp. ERI-3 cell-filtrate. AgNO3 solution (1 mM) was added to the cell-free culture supernatant and the mixture was incubated at 28 °C for 48 h in the dark in an orbital shaker. The AgNPs were characterized using UV–visible spectroscopy, X-ray Diffraction (XRD), Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). The nanoparticles exhibited maximum absorbance at 430 nm in UV–Vis spectroscopy. The XRD spectrum exhibited 2 ⊖ values corresponding to the silver nanocrystals. TEM and SEM micrographs revealed the extracellular formation of spherical nanoparticles in the size range of 10–100 nm. AgNPs formed flower-like self-assembled structures after three months incubating at room temperature in the dark. The study provides the evidence that the factors in the cell-free culture supernatant facilitate synthesis of AgNPs. This study is the first report on the biosynthesis of AgNPs using supernatant of Streptomyces sp. ERI-3 bacterium.
Subfields: Biomedical Engineering, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/b3ea9b4e052d3af432b87d8cd9b59d4985eeb0c4
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In Biomedical Engineering
In Materials Chemistry
Citations in the corpus
- Green Synthesis of Silver Nanoparticles: A Review (2016, background): “95 Zonnoz and Salouti (2011) [83] Aqueous cell filtrate of Streptomyces sp.”
- Extracellular biosynthesis of silver nanoparticle using Streptomyces sp. 09 PBT 005 and its antibacterial and cytotoxic properties (2015, result): “Streptomyces sp. 09 PBT 005 was further selected for the biosynthesis of silver nanoparticles because there are only very few reports on the synthesis of silver nanoparticles using Streptomyces sp. Earlier Faghri and Salouti (2011) (Sathishkumar et al. 2009; Faghri Zonooz.”