Antimicrobial activity of biosilver nanoparticles produced by a novel Streptacidiphilus durhamensis strain

Buszewski, Bogusław; Rafińska, Katarzyna; Szultka‐Młyńska, Małgorzata; Golińska, Patrycja; Wypij, Magdalena; Laskowski, Dariusz; Dahm, H.

doi:10.1016/j.jmii.2016.03.002

Cited by 180 publications

(79 citation statements)

References 32 publications

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“…When analyzing influence of pH of the system a sharp decrease of zeta potential was noticed for pH 2–4 which was a result of progressive deprotonation of carboxyl groups of bacterial structural components. For pH 5–8 a constant value of zeta potential could be observed which reflected the proteolytic balance [53, 55]. Bacteria after biosorption of Ag + show higher electric charge.…”

Section: Discussionmentioning

confidence: 99%

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Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

et al. 2017

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The current work deals with the phenomenon of silver cations uptake by two kinds of bacteria isolated from dairy products. The mechanism of sorption of silver cations by Lactococcus lactis and Lactobacillus casei bacteria was investigated. Inductively coupled plasma–mass spectrometry (ICP-MS) was used for determination of silver concentration sorbed by bacteria. Analysis of charge distribution was conducted by diffraction light scattering method. Changes in the ultrastructure of Lactococcus lactis and Lactobacillus casei cells after treatment with silver cations were investigated using transmission electron microscopy observation. Molecular spectroscopy methods, namely Fourier transform-infrared spectroscopy (FT-IR) and matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) were employed for description of the sorption mechanism. Moreover, an analysis of volatile organic compounds (VOCs) extracted from bacterial cells was performed.

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Section: Discussionmentioning

confidence: 99%

“…LAB-Ag demonstrated reduced stability of biocolloids as compared to native cells. This was a consequence and also an evidence of the biosorption processes of silver cations on the surface of bacterial cells [22, 53, 55, 56]. …”

Section: Discussionmentioning

confidence: 99%

Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

et al. 2017

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“…and Pseudomonas spp., followed by E. coli and Salmonella spp. [53]. In another study, an acidophilic Actinobacteria strain was used as a novel reducing agent for a single-step synthesis of Ag NPs and a Streptacidiphilus durhamensis HGG16n isolate was used for the efficient synthesis of bioactive Ag NPs.…”

Section: Collagen-silver (Ag) Nps Compositesmentioning

confidence: 99%

Collagen-Nanoparticles Composites for Wound Healing and Infection Control

Grigore

Grumezescu

Holban

et al. 2017

Metals

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Nowadays, the world is facing a serious crisis represented by the rapid emergence of resistant bacteria, which jeopardizes the efficacy of antibiotics. This crisis has been attributed to the overuse and misuse of antibiotics, as well as the cessation of new drug production by the pharmaceutical industry. Therefore, bacterial strains with resistance to multiple antibiotic classes have appeared, such as Staphylococcus aureus, Acinetobacter spp. and Pseudomonas aeruginosa. This review aims to provide an updated summary of the current approach to the treatment of infections due to resistant microorganisms, with a focus on the application of the antimicrobial effects of inorganic nanoparticles in combination with collagen to promote wound healing. In addition, the paper describes the current approaches in the field of functionalized collagen hydrogels capable of wound healing and inhibiting microbial biofilm production.

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“…Metal nanoparticles such as silver [7][8][9][10], cobalt [11], mercury, gold, copper [12] and zinc exhibit excellent antibacterial activity against a set of microbial strains. These nanoparticles are less stable because they are air sensitive leading to their futile effect on microorganisms.…”

Section: Introductionmentioning

confidence: 99%

An investigation on the synergistic effect of Cu₂O-Ag nanoparticle on its bactericidal and anticancerous properties

Karle

Kapur

et al. 2020

Mater. Res. Express

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Copper and silver are known to have good antibacterial and anti-fungal properties at nanoscale. Cu 2 O-Ag synthesis was attempted using hydrazine hydrate reduction method. The formation of Cu 2 O-Ag nanoparticles was confirmed using powder x-ray diffraction technique. Further the morphology and elemental compositions were analyzed by FESEM, HRTEM and XRF techniques. The antibacterial activity of the formed nanoparticles exhibited an excellent zone of inhibition compared to the existing antibiotics. The microbial broth curve obtained against Pseudomonas aeruginosa further confirmed the remarkable inhibiting property of the nanoparticle in a short span of 6 h post treatment (HPT). The synthesized nanoparticle showed very good activity against HCT-15 colon cancer cells by inhibiting their viability up to 27% when treated at higher concentration. Thus the synthesized nanoparticles seem to be a good candidate for various biological applications.

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Antimicrobial activity of biosilver nanoparticles produced by a novel Streptacidiphilus durhamensis strain

Abstract: These results provide insight into the development of new antimicrobial agents along with synergistic enhancement of the antibacterial mechanism against clinical bacteria.

Cited by 180 publications

References 32 publications

Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

Collagen-Nanoparticles Composites for Wound Healing and Infection Control

An investigation on the synergistic effect of Cu₂O-Ag nanoparticle on its bactericidal and anticancerous properties

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Antimicrobial activity of biosilver nanoparticles produced by a novel Streptacidiphilus durhamensis strain

Abstract: These results provide insight into the development of new antimicrobial agents along with synergistic enhancement of the antibacterial mechanism against clinical bacteria.

Cited by 180 publications

References 32 publications

Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

Biosorption of silver cations onto Lactococcus lactis and Lactobacillus casei isolated from dairy products

Collagen-Nanoparticles Composites for Wound Healing and Infection Control

An investigation on the synergistic effect of Cu2O-Ag nanoparticle on its bactericidal and anticancerous properties

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Product

Resources

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An investigation on the synergistic effect of Cu₂O-Ag nanoparticle on its bactericidal and anticancerous properties