Silver nanoparticle biosynthesis from newly isolated streptomyces genus from soil

Adıgüzel, Ali Osman; Adıgüzel, Serpil Könen; Mazmanci, Birgül; Tunçer, Münir; Mazmancı, Mehmet Ali

doi:10.1088/2053-1591/aab861

Cited by 19 publications

(7 citation statements)

References 46 publications

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“…Remarkably, the efficiency of NPs versus pathogens was influenced by the microbial physiology, its metabolism, NPs dose, degree of contact and their diffusion rate. Apparently, our results match those reported elsewhere [16,60,61]. Moreover, the antifungal potency was pronounced against examined C. albicans, A. bracelleuse and Alternaria sp.…”

Section: Discussionsupporting

confidence: 93%

“…On the other hand, Gram-negative bacteria are characterized by the presence of an additional external lipopolysaccharide layer which might accumulate AgNPs in aggregates, preventing their entrance to the interior of the cell. In addition, Gram-negative bacteria pose a powerful multiple efflux pump system that externally expels any detrimental agents [59,60]. Remarkably, the efficiency of NPs versus pathogens was influenced by the microbial physiology, its metabolism, NPs dose, degree of contact and their diffusion rate.…”

Section: Discussionmentioning

confidence: 99%

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Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

et al. 2021

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Lake Mariout is one of the polluted coastal marine ecosystems in Egypt which is considered to be a reservoir of serious effluents from different anthropogenic activities. Such selective pressure enforces indigenous microbial populations to acquire new advantageous themes. Thus, in this study, two Streptomyces strains were screened, from Lake Mariout’s sediment for bioreduction of 5 mM AgNO3. Both strains were identified molecularly; their biochemical and physiological characterization revealed their ability to secrete bioactive metabolites with antagonistic activity. The cultural and incubation conditions influencing AgNPs productivity were evaluated. Subsequently, the physicochemical properties of the biofabricated AgNPs were pursued. UV-Vis spectroscopy detected surface plasmon resonance at range 458–422 nm. XRD indicated crystalline, pure, face-centered cubic AgNPs; EDX demonstrated strong silver signal at 3.5 keV. Besides, FT-IR and TGA analysis unveiled self-stabilization and functionalization of AgNPs by bioorganic molecules. However, electron microscopy micrographs depicted numerous uniform spherical AgNPs (1.17–13.3 nm). Potent bactericidal and fungicide activity were recorded by zone of inhibition assay at 50 μg/mL. Further, the antibiofilm activity was exerted in a dose-dependent manner. Moreover, the conjugation of AgNPs with the crude bioactive metabolites of both bionanofactories ameliorated the antimicrobial potency, reflecting a synergistic efficiency versus examined pathogens (free-living and biofilm).

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

et al. 2021

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“…al. (2009) reported that 1mM AgNO3 was the optimal concentration for the Ag NP synthesis [38,41]. But, in this study, maximum absorbance was obtained with 1,5 mM AgNO3 (Fig.…”

Section: Resultsmentioning

confidence: 54%

“…PC-FCF without and with Ag NP Different pH values (2.0 -9.0) were used in the previous studies that used various types of fungi such as S. commune, P. sanguineus, L. sajor caju, T. pocas, T. feei, Verticillium sp., Humicola, Penicillium fellutanum, R. oryzae[18,[37][38][39][40] and bacteria such as Streptomyces sp., Streptomyces sp. AOA21[31,[41][42][43].…”

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confidence: 99%

The biosynthesis of silver nanoparticles with fungal cytoplasmic fluid obtained from Phanerochaete chrysosporium ME446

Deniz

Mazmancı

2020

Environmental Research and Technology

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Over the last few years, the green synthesis of metal nanoparticles (NPs) has become the center of attention of researchers. There are eco-friendly techniques to determine the properties of metal nanoparticles, produced by microorganisms or their cytoplasmic fluids. In the present study, fungal cytoplasmic fluid of white-rot fungi Phanerochaete chrysosporium ME446 was used for the biosynthesis of Ag NP. The pH value of growing media of fungi, AgNO3 concentration and fungal cytoplasmic fluid of Phanerochaete chrysosporium ME446 (PC-FCF) ratio were optimized to determine the most effective conditions. The formation of Ag NPs was monitored by UV visible spectrophotometer at a wavelength of 420 nm. Synthesized Ag NPs were characterized at scanning electron microscope (SEM). Optimum conditions for the pH value, AgNO3 concentration and PC-FCF ratio were determined as 6.0, 1.50 mM and 100%, respectively. The shape and the sizes of nanoparticles, synthesized at optimum conditions, were confirmed by SEM. The shape was spherical, and the sizes were ranged from 26 to 63 nm.

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“…In vivo investigations have been carried out on Saccharomyces cerevisiae (yeast), Bombyx mori (silkworm) larvae, Cyprinus carpio (fish) blood, Poecilia reticulata (fish) larvae, Ceriodaphnia cornuta (marine flea) adults, Danio rerio (zebrafish), Leishmania major (parasite) promastigotes, and mice bearing DAL tumor cells. Biogenic AgNPs at concentrations of 50 and 100 µg/mL caused significant DNA damage in S. cerevisiae , while insignificant DNA damage was observed at 12.5 and 25 µg/mL [67]. In addition, at 100 ppm, biogenic AgNPs induced significant DNA fragmentation in larvae of the mulberry silkworm B. mori [68].…”

Section: Discussionmentioning

confidence: 99%

A Systematic Review of the Genotoxicity and Antigenotoxicity of Biologically Synthesized Metallic Nanomaterials: Are Green Nanoparticles Safe Enough for Clinical Marketing?

et al. 2019

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Background and objectives: Although studies have elucidated the significant biomedical potential of biogenic metallic nanoparticles (MNPs), it is very important to explore the hazards associated with the use of biogenic MNPs. Evidence indicates that genetic toxicity causes mutation, carcinogenesis, and cell death. Materials and Methods: Therefore, we systematically review original studies that investigated the genotoxic effect of biologically synthesized MNPs via in vitro and in vivo models. Articles were systematically collected by screening the literature published online in the following databases; Cochrane, Web of Science, PubMed, Scopus, Science Direct, ProQuest, and EBSCO. Results: Most of the studies were carried out on the MCF-7 cancer cell line and phytosynthesis was the general approach to MNP preparation in all studies. Fungi were the second most predominant resource applied for MNP synthesis. A total of 80.57% of the studies synthesized biogenic MNPs with sizes below 50 nm. The genotoxicity of Ag, Au, ZnO, TiO2, Se, Cu, Pt, Zn, Ag-Au, CdS, Fe3O4, Tb2O3, and Si-Ag NPs was evaluated. AgNPs, prepared in 68.79% of studies, and AuNPs, prepared in 12.76%, were the two most predominant biogenic MNPs synthesized and evaluated in the included articles. Conclusions: Although several studies reported the antigenotoxic influence of biogenic MNPs, most of them reported biogenic MNP genotoxicity at specific concentrations and with a dose or time dependence. To the best of our knowledge, this is the first study to systematically evaluate the genotoxicity of biologically synthesized MNPs and provide a valuable summary of genotoxicity data. In conclusion, our study implied that the genotoxicity of biologically synthesized MNPs varies case-by-case and highly dependent on the synthesis parameters, biological source, applied assay, etc. The gathered data are required for the translation of these nanoproducts from research laboratories to the clinical market.

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Silver nanoparticle biosynthesis from newly isolated streptomyces genus from soil

Cited by 19 publications

References 46 publications

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

Antibacterial, Antifungal and Antibiofilm Activities of Silver Nanoparticles Supported by Crude Bioactive Metabolites of Bionanofactories Isolated from Lake Mariout

The biosynthesis of silver nanoparticles with fungal cytoplasmic fluid obtained from Phanerochaete chrysosporium ME446

A Systematic Review of the Genotoxicity and Antigenotoxicity of Biologically Synthesized Metallic Nanomaterials: Are Green Nanoparticles Safe Enough for Clinical Marketing?

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