Biosynthesis and characterization of silver nanoparticles by actinomycetes isolated from agriculture field and its application on antimicrobial activity

Microbial assisted biosynthesis of nanoparticles is a rapidly progressing area of nanobiotechnology. Inthis paper Stachybotrys chartarum assisted extracellular synthesis of silver nanoparticles (AgNPs) is reportedwhen challenged with 1mM silver nitrate (AgNO3). The characterization of AgNPs was carried out visualobservation and UV-Vis spectrophotometry. Further analysis carried out by Fourier Transform InfraredSpectroscopy (FTIR), provides evidence for the presence of proteins as capping agent, which helps in increasingthe stability of the synthesized AgNPs. Transmission Electron Microscopy (TEM) investigations confi rmedthat AgNPs were formed. The synthesized silver nanoparticles were found in the range of 65-108 nm. Finally,the antimicrobial susceptibility of AgNPs synthesized was investigated which exhibited more potent activityagainst bacteria than fungi compared with using silver nitrate at concentration 1mM. Keywords: Antimicrobial activity, Stachybotrys chartarum, Silver nanoparticles

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Green Synthesis and Characterization of Silver Nanoparticles Using Fresh Leaf Extract of Aloe vera barbadensis Miller, Aloe vera and Sempervivum tectorum and Its Antimicrobial Activity Studies

30th Scientific-Experts Conference of Agriculture and Food Industry - IFMBE Proceedings ◽

10.1007/978-3-030-40049-1_42 ◽

2020 ◽

pp. 335-341

Author(s):

Anera Kazlagić ◽

Amela Lagumdžija ◽

Berina Borovac ◽

Saud Hamidović ◽

Odej Ali Abud ◽

...

Keyword(s):

Antimicrobial Activity ◽

Silver Nanoparticles ◽

Green Synthesis ◽

Leaf Extract ◽

Aloe Vera ◽

Synthesis And Characterization ◽

Fresh Leaf

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Formation and Biopharmaceutical Characterization of Electrospun PVP Mats with Propolis and Silver Nanoparticles for Fast Releasing Wound Dressing

BioMed Research International ◽

10.1155/2016/4648287 ◽

2016 ◽

Vol 2016 ◽

pp. 1-11 ◽

Cited By ~ 11

Author(s):

Erika Adomavičiūtė ◽

Sigitas Stanys ◽

Modestas Žilius ◽

Vaida Juškaitė ◽

Alvydas Pavilonis ◽

...

Keyword(s):

Antimicrobial Activity ◽

Wound Healing ◽

Silver Nanoparticles ◽

Phenolic Compounds ◽

Wound Dressing ◽

Ethanolic Extract ◽

Anticancer Activities ◽

Dressing Materials ◽

Fast Release

Antibacterial, antiviral, antifungal, antioxidant, anti-inflammatory, and anticancer activities of propolis and its ability to stimulate the immune system and promote wound healing make it a proper component for wound dressing materials. Silver nanoparticles are recognized to demonstrate strong antiseptic and antimicrobial activity; thus, it also could be considered in the development of products for wound healing. Combining propolis and silver nanoparticles can result in improved characteristics of products designed for wound healing and care. The aim of this study was to formulate electrospun fast dissolving mats for wound dressing containing propolis ethanolic extract and silver nanoparticles. Produced electrospun nano/microfiber mats were evaluated studying their structure, dissolution rate, release of propolis phenolic compounds and silver nanoparticles, and antimicrobial activity. Biopharmaceutical characterization of electrospun mats demonstrated fast release of propolis phenolic compounds and silver nanoparticles. Evaluation of antimicrobial activity onStaphylococcus aureus,Staphylococcus epidermidis,Enterococcus faecalis,Escherichia coli,Pseudomonas aeruginosa,Proteus vulgaris,Bacillus subtilis,Bacillus cereus, andCandida albicansstrains confirmed the ability of electrospun mats to inhibit the growth of the tested microorganisms.

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