Green synthesis of silver nanoparticles using olive leaf extract and its antibacterial activity

Khalil, Mostafa M.H.; Ismail, Eman Abdel Rahman; El-Baghdady, Khaled Z.; Mohamed, Doaa Safwat

doi:10.1016/j.arabjc.2013.04.007

Cited by 598 publications

(321 citation statements)

References 52 publications

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“…PC well-containing chloramphenicol shows a zone of 19 mm Figure 7. These results agreed with the previous work carried out by Khalil et al and Li et al [3,5]. The difference in the diameter of the zone of inhibition observed in these bacterial species is due to the difference in their cell wall composition [1].…”

Section: Resultssupporting

confidence: 83%

“…NPs exhibit intriguing physicochemical and biological properties due to large surface to volume ratio, size, shape, and tunable band gap. Nanotechnology has opened new avenues by intersecting with interdisciplinary field of science for innumerable applications [3]. Hence, nanomaterials research has gained significant interest in the recent years.…”

Section: Introductionmentioning

confidence: 99%

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Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Vishwanatha¹,

Keshavamurthy²,

Mahanthappa³

et al. 2018

J App Biol Biotech

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Microbial nanoparticles (NPs) have become the subject of immense research interest in the recent past due to their wide range of applications as effective antimicrobial agents, drug delivery systems, gene delivery, diagnostic agents in imaging diseases, and consumer products among others. The present study emphasizes on the synthesis of metallic silver NPs (SNPs) from cell-free supernatant of Aspergillus awamori strain KGSR12. The phase purity, composition, size, and shape of the as-synthesized NPs were characterized using various analytic spectroscopic techniques including X-ray diffraction, scanning electron microscope (SEM), ultraviolet-visible, and Fourier transform-infrared spectroscopy. Based on the SEM analysis, the particles are uniformly distributed, and size is estimated to be 40-50 nm. Antibacterial activity of NPs against significant human pathogens was conferred with well diffusion assay, and it reveals the strains of Pseudomonas aeruginosa, Klebsiella pneumoniae, and Bacillus cereus are susceptible to synthesized SNPs that confirm the antibacterial activity of SNPs. Thus, the study concludes with the biogenic and eco-friendly route for synthesizing SNPs with antibacterial activity against clinically important pathogens and attributes growing interest on fungi as an emerging source for the synthesis of NPs.

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Vishwanatha¹,

Keshavamurthy²,

Mahanthappa³

et al. 2018

J App Biol Biotech

View full text Add to dashboard Cite

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“…Banerjee et al prepared AgNPs from various plants extracts and studied their antibacterial activities and toxicity analysis [32] . Khalil et al synthesized green AgNPs from olive oil extract and observed AgNPs also possess antibacterial activities [33] . Awwad et al also reported green synthesis of AgNPs from carob leaves extract having antibacterial activity [34] .…”

Section: Research Papermentioning

confidence: 99%

Green Synthesis and Characterization of Silver Nanoparticles from Crocus Mathewii; A Disremembered Turkish Flowering Plant

Yildiztekin¹,

Nadeem²,

Yildiztekin³

et al. 2017

pharmaceutical-sciences

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Mahmut, et al.: Characterization of Silver Nanoparticles from Crocus mathewiiThis study reports the first ever chemical study on Crocus mathewii, a Turkish endemic and forgotten flowering plant. Silver nanoparticles were green synthesized from one mmol×l -1 silver nitrate extract of C. mathewii. The water-suspended silver nanoparticles showed a peak at 423 nm in UV/Vis spectrophotometer that suggested smaller particle size due to its less surface plasmon resonance. Transmission electron microscopy analysis also proved excellent polydispersity of quasi-spherical particle size distribution with average particles of 7.5 nm (2.5-25 nm). The presence of silver in the nanoparticles was analyzed by X-ray diffraction, while Fourier transform infrared spectroscopy analysis showed the presence of various -OH and -NH containing organics. The results proved that the crude extract of C. mathewii can be used for green synthesis of silver nanoparticles in future for medicinal uses.

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“…Synthesis of inorganic nanoparticles by biological systems makes nanoparticles more biocompatible and environmentally benign [ 10 ]. The rate of reduction of metal ions using plant extracts have been found to be much faster as compared to micro-organisms [ 11 ]. Pests are very important antagonist against agricultural production systems and urgently we need to develop green and safer alternative methods of controlling them.NPs are showing promise in different fields of agricultural biotechnologyand helping in production of newer pesticides, insecticides and insect repellents.…”

Section: Introductionmentioning

confidence: 99%

Phytofabrication of silver nanoparticles using Myriostachya wightiana as a novel bioresource, and evaluation of their biological activities

Vadlapudi

Amanchy

2017

Braz. arch. biol. technol.

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Nanobiotechnology deals with the properties of nanomaterials and their potential uses. Here we report for the first time novel, cost-effective and eco-friendly method for the rapid green synthesis of silver nanoparticles (AgNPs) using leaf extracts of Myriostachya wightiana. The growth of silver nanoparticles was monitored by UV-vis spectroscopy complemented by Zeta potential, dynamic light scattering technique (DLS), Fouriertransform infrared spectroscopy (FTIR), Transmission electron microscope (TEM) and X-ray diffraction (XRD).The surface plasmon resonance (SPR)

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Green synthesis of silver nanoparticles using olive leaf extract and its antibacterial activity

Cited by 598 publications

References 52 publications

Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Biosynthesis, characterization and antibacterial activity of silver nanoparticles from Aspergillus awamori

Green Synthesis and Characterization of Silver Nanoparticles from Crocus Mathewii; A Disremembered Turkish Flowering Plant

Phytofabrication of silver nanoparticles using Myriostachya wightiana as a novel bioresource, and evaluation of their biological activities

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