100 Result(s)
within
Gharieb S. El-Sayyad
English
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Article
Synthesis of silver nanoparticles using natural pigments extracted from Alfalfa leaves and its use for antimicrobial activity
The synthesis and characterization of silver nanoparticles (AgNPs) using natural pigments from plants as reducing agents is presented in this study. The natural pigments were extracted from Alfalfa leaves. The...
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Synthesis of Metallic Silver Nanoparticles by Fluconazole Drug and Gamma Rays to Inhibit the Growth of Multidrug-Resistant Microbes
Here we tailored a methodology, including green synthesis of silver nanoparticles (AgNPs) in aqueous solution using Fluconazole (Fluc.), a broad-spectrum antifungal agent under the influence of gamma rays. AgN...
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Tunable structures of copper substituted cobalt nanoferrites with prospective electrical and magnetic applications
Spinel ferrites (SFs) show high potential in different aspects of modern technology. Particularly, copper ferrite represents a promising electrode material for supercapacitors and lithium based batteries. This...
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Article
Engineered Nanomaterials as Potential Candidates for HIV Treatment: Between Opportunities and Challenges
Nanomaterials have received considerable attention due to their unique properties; they have high surface area compared to volume ratio, giving them superior chemical, optical and thermal characteristics. Nano...
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Layer-by-layer preparation and characterization of recyclable nanocomposite (CoxNi1−xFe2O4; X = 0.9/SiO2/TiO2)
Titanium dioxide (TiO2) nanocomposites have been extensively employed in many fundamental optoelectronic and photocatalytic applications due to their outstanding optical, electronic and chemical properties. In th...
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Potential Nematicidal Properties of Silver Boron Nanoparticles: Synthesis, Characterization, In Vitro and In Vivo Root-Knot Nematode (Meloidogyne incognita) Treatments
The purpose of this work is to evaluate the anti-nematode activity of silver boron nanoparticles (AgB NPs) synthesized by PVP polymer and gamma rays as a novel cost-effective and eco-friendly green method. AgB...
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Incorporation of Mn2+ into cobalt ferrite via sol–gel method: insights on induced changes in the structural, thermal, dielectric, and magnetic properties
Precise tailoring of nanostructured cobalt ferrite paves the way to design and develop devices for stress and noncontact torque sensors. Herein, Mn2+ ions are inserted into cobalt ferrite with different ratios us...
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Article
Spirulina platensis-Polysaccharides Promoted Green Silver Nanoparticles Production Using Gamma Radiation to Suppress the Expansion of Pear Fire Blight-Producing Erwinia amylovora
The present research examined the influence of eco-friendly silver nanoparticles (Ag NPs) synthesized by Spirulina platensis-polysaccharides and gamma rays on the growth of bacterial plant pathogen which caused p...
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Article
Antibiofilm and Antimicrobial Activities of Silver Boron Nanoparticles Synthesized by PVP Polymer and Gamma Rays Against Urinary Tract Pathogens
In the present study gamma-rays induced eco-friendly synthesis of silver boron nanoparticles (AgB NPs) using PVP polymer as a stabilizing agent. Antimicrobial and antibiofilm activities of AgB NPs were examine...
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Article
Growth dynamics of CBD-assisted CuS nanostructured thin-film: optical, dielectric and novel switchable device applications
The microcrystal structure of copper sulfide (CuS) nano-structured ultra-thin film was prepared on glass substrate from aqueous ammonia solution and sodium hydroxide at 60 °C using a simple and cost-effective ...
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Article
Penicillium chrysogenum-Mediated Mycogenic Synthesis of Copper Oxide Nanoparticles Using Gamma Rays for In Vitro Antimicrobial Activity Against Some Plant Pathogens
The purpose of this study is to investigate the ability of specific fungus to biosynthesize copper oxide nanoparticles (CuO NPs) by the aid of gamma rays and evaluate its performance as a unique antimicrobial ...
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Facile Biosynthesis of Tellurium Dioxide Nanoparticles by Streptomyces cyaneus Melanin Pigment and Gamma Radiation for Repressing Some Aspergillus Pathogens and Bacterial Wound Cultures
Melanin pigment was attracted significant interest as a photo-protecting natural polymer which applied in different fields like nanotechnology, food processing and biomedicine. Streptomyces cyaneus is used for me...
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Article
Influence of Mg2+ substitution on structural, optical, magnetic, and antimicrobial properties of Mn–Zn ferrite nanoparticles
Superparamagnetic nanoparticles (NPs) have a prominent interest from researchers in the field of industrial and biomedical applications. Herein, Mg2+-substituted Mn–Zn ferrites with nominal composition Mn0.5Zn0.5...
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Article
Response Surface Methodology Optimization of Mono-dispersed MgO Nanoparticles Fabricated by Ultrasonic-Assisted Sol–Gel Method for Outstanding Antimicrobial and Antibiofilm Activities
Magnesium oxide (MgO) nanoparticles are one of the highly significant compounds in construction. The novelty concentrated on using sol–gel technique coupled with ultrasonication for synthesis of MgO nanopartic...
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Article
Novel nanocomposite decoy flare based on super-thermite and graphite particles
Graphite has attracted scientific interest due to its exceptional physical and chemical properties. On combustion, graphite particles offer high emissivity as a black body; therefore, it can find wide applicat...
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Article
Gentamicin-Assisted Mycogenic Selenium Nanoparticles Synthesized Under Gamma Irradiation for Robust Reluctance of Resistant Urinary Tract Infection-Causing Pathogens
The purpose of this research is to compare and enhance the antimicrobial and antibiofilm potentials of the biogenic selenium nanoparticles (Se NPs) produced by cost-effective and eco-friendly green methods. Th...
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Article
Synthesis of CuO-distributed carbon nanofiber: Alternative hybrid for solid propellants
Carbon nanofibers (CNFs) possess superior catalytic abilities and high surface area. Moreover, energetic particles can be loaded on them by acting as carriers. The current study reports an electroless plating,...
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Article
Microbial acetylcholinesterase inhibitors for Alzheimer’s therapy: recent trends on extraction, detection, irradiation-assisted production improvement and nano-structured drug delivery
Neurodegenerative disorders especially Alzheimer’s disease (AD) are significantly threatening the public health. Acetylcholinesterase (AChE) inhibitors are compounds of great interest which can be used as effe...
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Article
Controllable synthesis of Co1−x MxFe2O4 nanoparticles (M = Zn, Cu, and Mn; x = 0.0 and 0.5) by cost-effective sol–gel approach: analysis of structure, elastic, thermal, and magnetic properties
Substitutions of cations were considered to be the main way for improving the performance of ferrite nanocrystalline structures. In this paper, non-magnetic and magnetic ions were conducted to substitute cobal...
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Article
Multi-component nanocomposite infrared flare with superior infrared signature via synergism of nanothermite and reduced graphene oxide
Infrared-guided missiles caused 90% aircraft damage. Infrared decoy flares are effective counter measure against infrared missiles. Decoy flare thermal signature depends mainly on black body emission of carbon...
