Green synthesis of silver nanoparticles using Ziziphus joazeiro leaf extract for production of antibacterial agents

Guimarães, Milena Lima; Silva, Fernando Antônio Gomes da; Costa, Mateus Matiuzzi da; Oliveira, Helinando Pequeno de

doi:10.1007/s13204-019-01181-4

Cited by 48 publications

(22 citation statements)

References 37 publications

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“…For example, T ZnO NPs composed of irregular agglomerated particles, and the B ZnO NPs characterized with the irregular flake-shape composed of very small particles with an average particle size of 20 nm, whereas BMW ZnO NPs characterized with the well-defined spherical-like shape with an average particle size of 25 nm. The small size of the B ZnO NPs may be attributed to the presence of the Ziziphus jujuba leaves extract which act as capping agent and prevent the agglomeration of the ZnO NPs due to the existence of long chain natural products such as the polyphenols in the extract [ 41 , 42 , 45 , 46 , 47 , 48 ]. In addition, the well-defined spherical shape of the BMW ZnO NPs compared with the traditional and biosynthesized ZnO NPs may be ascribed to the thermally promoted crystallite growth due to the fusion of the small particles as a result of the high temperature, as well as the effect of the long chain natural products associated with the Ziziphus jujuba leaves extract.…”

Section: Resultsmentioning

confidence: 99%

Biosynthesis Microwave-Assisted of Zinc Oxide Nanoparticles with Ziziphus jujuba Leaves Extract: Characterization and Photocatalytic Application

et al. 2021

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The present work is intended to biosynthesize zinc oxide nanoparticles (ZnO NPs) via facile and modern route using aqueous Ziziphus jujuba leaves extract assisted by microwave and explore their photocatalytic degradation of methyl orange anionic dye and methylene blue cationic dye under solar irradiation. The biosynthesized microwave assisted ZnO NPs were characterized and the results showed that ZnO NPs contain hexagonal wurtzite and characterized with a well-defined spherical-like shape with an outstanding band gap (2.70 eV), average particle size of 25 nm and specific surface area of 11.4 m2/g. The photocatalytic degradation of the MO and MB dyes by biosynthesized ZnO NPs under solar irradiation was studied and the results revealed the selective nature of the ZnO NPs for the adsorption and further photocatalytic degradation of the MO dye compared to the MB dye. In addition, the photocatalytic degradation of MO and MB dyes by the ZnO NPs under solar radiation was fitted by the first-order kinetics. Moreover, the photodegradation mechanism proposed that superoxide ions and hydroxyl radicals are the main reactive species.

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Section: Resultsmentioning

confidence: 99%

Biosynthesis Microwave-Assisted of Zinc Oxide Nanoparticles with Ziziphus jujuba Leaves Extract: Characterization and Photocatalytic Application

et al. 2021

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“…47,48 Although these synthetic methods have produced AgNPs shaped as spheres, 49 cubes, 50 bipyramids, 51 stars, 52 nanoprisms, 53 triangular plates 53 these methods are energy-intensive, the size and shape distributions are not always homogenous, and chemicals used can be toxic. Consequently, this has given rise to alternative green synthetic approaches employing biological entities such as microorganisms 10,12,54,55 and plant extracts 4, [56][57][58][59][60][61][62][63] to replace more complex syntheses of AgNPs free from toxic capping agents and hazardous byproducts.…”

Section: Introductionmentioning

confidence: 99%

A hybrid lipid membrane coating “shape-locks” silver nanoparticles to prevent surface oxidation and silver ion dissolution

et al. 2020

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“…The most used nanoparticles in biomedical application, which are gold, and silver nanoparticles are prepared by the green route (Kuppusamy et al 2015 ) (Salem and Fouda 2020 ). Using various plant extracts, mono-, di-, and tri-metallic nanoparticles were prepared but still have some limitations in the state of aggregation, stability, and crystal growth (Guimarães et al 2020 ) (Gomathi et al 2020 ).…”

Section: Nanoparticles As Antiviral Agentsmentioning

confidence: 99%

A review on recent trends of antiviral nanoparticles and airborne filters: special insight on COVID-19 virus

Jazie

Albaaji

Abed

2021

Air Qual Atmos Health

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Novel corona virus (COVID-19) pandemic in the last 4 months stimulates the international scientific community to search for vaccine of antiviral agents suitable for in activating the virus inside and outside the human body. More than 4 million people globally are infected by the virus and about 300,000 dead cases until this moment. The ventilation and airborne filters are also investigated aiming to develop an efficient antiviral filtration technology. Human secretion of the infected person as nasal or saliva droplets goes as airborne and distributes the virus everywhere around the person. N95 and N98 filters are the must use filters for capturing particles of sizes around 300 nm. The average size of the novel corona virus (COVID-19) is 100 nm and there is no standard or special filter suitable for this virus. The nanoparticle-coated airborne filter is a suitable technique in this regard. While the efficiency of this type of filters still needs to be enhanced, new developed nanofiber filters are proposed. Most recently, the charged nanofiber filters of sizes below 100 nm are developed and provide an efficient viral filtration and inactivation. The efficiency of filter must be kept at accepted level without increasing the pressure drop. The present review outlines the most efficient antiviral nanoparticles including the recent functional nanoparticles. The filtration theory, filtration modeling, filter testing, and different types of filter with special concentration on the charged nanofiber filter were discussed. The charged nanofiber filter able to capture novel corona virus (COVID-19) with 94% efficiency and a pressure drop less than 20 MPa.

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Green synthesis of silver nanoparticles using Ziziphus joazeiro leaf extract for production of antibacterial agents

Cited by 48 publications

References 37 publications

Biosynthesis Microwave-Assisted of Zinc Oxide Nanoparticles with Ziziphus jujuba Leaves Extract: Characterization and Photocatalytic Application

Biosynthesis Microwave-Assisted of Zinc Oxide Nanoparticles with Ziziphus jujuba Leaves Extract: Characterization and Photocatalytic Application

A hybrid lipid membrane coating “shape-locks” silver nanoparticles to prevent surface oxidation and silver ion dissolution

A review on recent trends of antiviral nanoparticles and airborne filters: special insight on COVID-19 virus

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