Green synthesis of silver nanoparticles with the Arial part of<i>Dorema ammoniacum D.</i>extract by antimicrobial analysis

Zandpour, Fakhte; Allafchian, Alireza; Vahabi, Mohammad Reza; Jalali, Seyed Amir Hossein

doi:10.1049/iet-nbt.2017.0216

Cited by 17 publications

(12 citation statements)

References 48 publications

(52 reference statements)

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“…Nanotechnology refers to the study of reducing dimensions to as low as atomic, molecular and macromolecular scales. Nanotechnology produces materials with dimensions in the range of 1–100 nm [10]. Many types of researches have indicated the importance of nanoparticles in comparison with microspheres due to the considerably higher surface to volume ratio [11].…”

Section: Introductionmentioning

confidence: 99%

“…Many types of researches have indicated the importance of nanoparticles in comparison with microspheres due to the considerably higher surface to volume ratio [11]. Nanoparticles of various polymers such as proteins, polysaccharides and synthetic polymers have been produced through processes such as emulsion/evaporation, desolvation, coacervation, spray‐drying, nanoprecipitation and electrospraying techniques [10, 11]. Electrospraying also known as electrohydrodynamic atomisation is, in fact,, the breakage of a drop into small micro‐/nanosized droplets when an electric field overcomes the liquid surface tension [12].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of cellulose nanoparticles through electrospraying

Kadivar

Tavanai

Allafchian

2018

IET nanobiotechnol.

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This study reports the fabrication of cellulose nanoparticles through electrospraying the solution of cellulose in -dimethylacetamide/lithium chloride solvent as well as investigating the effect of electrospraying conditions and molecular weight on the average size of electrosprayed nanoparticles. Electrospraying of cellulose was carried out with the following range for each factor, namely concentration = 1-3 wt%, voltage = 15-23 kV, nozzle-collector distance = 10-25 cm, and feed rate = 0.03-0.0875 ml/h. The smallest nanoparticles had an average size of around 40 nm. Results showed that lowering the solution concentration and feed rate, as well as increasing the nozzle-collector distance and applied voltage led to a decrease in the average size of the electrosprayed cellulose nanoparticles. Fourier transform infrared analysis proved that no chemical change had occurred in the cellulose structure after the electrospraying process. According to X-ray diffraction (XRD) results, cellulose nanoparticles showed a lower degree of crystallinity in comparison with the raw cellulose powder. XRD results also proved the absence of LiCl salt in the electrosprayed nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication of cellulose nanoparticles through electrospraying

Kadivar

Tavanai

Allafchian

2018

IET nanobiotechnol.

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“…Chemically synthesized NPs may be coated with compounds that are used in the synthesis process that limits their application in clinical studies because even the associated impurities in trace amounts can emanate from these experiments. In contrast, the biosynthesis nanoparticles may not have these restrictions [21][22][23][24].…”

Section: Biosynthesis Of Core Shell Nanoparticlesmentioning

confidence: 99%

Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

et al. 2018

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Featured Application: Greener synthesis and applications of Core-shell nanoparticles.Abstract: Among an array of hybrid nanoparticles, core-shell nanoparticles comprise of two or more materials, such as metals and biomolecules, wherein one of them forms the core at the center, while the other material/materials that were located around the central core develops a shell. Core-shell nanostructures are useful entities with high thermal and chemical stability, lower toxicity, greater solubility, and higher permeability to specific target cells. Plant or natural products-mediated synthesis of nanostructures refers to the use of plants or its extracts for the synthesis of nanostructures, an emerging field of sustainable nanotechnology. Various physiochemical and greener methods have been advanced for the synthesis of nanostructures, in contrast to conventional approaches that require the use of synthetic compounds for the assembly of nanostructures. Although several biological resources have been exploited for the synthesis of core-shell nanoparticles, but plant-based materials appear to be the ideal candidates for large-scale green synthesis of core-shell nanoparticles. This review summarizes the known strategies for the greener production of core-shell nanoparticles using plants extract or their derivatives and highlights their salient attributes, such as low costs, the lack of dependence on the use of any toxic materials, and the environmental friendliness for the sustainable assembly of stabile nanostructures.

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“…Synthesis of nanoparticles (NPs) by green chemistry is a cheap, non-toxic, and eco-friendly method, which is related to different organisms, such as algae [10], fungi [11], and plant extracts [12]. Plants are stable and accessible sources for the preparation of biocompatible NPs [13][14][15]. Different NPs with narrow distribution sizes and toxic-free solvents can be produced by controlling the biosynthesis method.…”

Section: Introductionmentioning

confidence: 99%

Biosynthesis of antibacterial silver nanoparticles using Astragalus verus Olivier

Askari

Vahabi

Allafchian

et al. 2020

Micro & Nano Letters

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In this work, a green method was introduced for preparing silver nanoparticles (Ag NPs) using gum tragacanth extracted from Astragalus verus Olivier. The absence of a chemical reducing agent that may be toxic is an advantage of this method. The Ag NPs were prepared in different tragacanth concentrations, pH values, and temperatures. XRD, FT-IR, and UV-vis spectroscopy analyses confirmed the structure of the synthesised Ag NPs. TEM and FESEM images showed that the prepared Ag NPs have spherical shapes. The FESEM images determined that a pH of 10 and a synthesis temperature of 50°C would be the optimal condition for preparing Ag NPs in this method. The change in concentration of tragacanth does not have much effect on the quality of Ag NPs. Obtained data from DLS revealed that the average diameter of Ag NPs is about 40 nm. The antibacterial activity of the prepared nanoparticles was evaluated against both Gram-positive and Gram-negative bacterial species. The results of the antibacterial tests showed that the prepared Ag NPs possess a desirable antibacterial activity.

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Green synthesis of silver nanoparticles with the Arial part ofDorema ammoniacum D.extract by antimicrobial analysis

Cited by 17 publications

References 48 publications

Fabrication of cellulose nanoparticles through electrospraying

Fabrication of cellulose nanoparticles through electrospraying

Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

Biosynthesis of antibacterial silver nanoparticles using Astragalus verus Olivier

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