<i>Gundelia tournefortii</i>
            L.: a natural source for the green synthesis of silver nanoparticles

Allafchian, Alireza; Farhang, Hamid Reza; Jalali, Seyed Amir Hossein; Vahabi, Mohammad Reza

doi:10.1049/iet-nbt.2017.0062

Cited by 11 publications

(10 citation statements)

References 45 publications

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“…Previously, in other studies, numerous cases of the synthesis of AgNPs have been reported using plant extracts, thereby confirming the mentioned issue. Some of the studies carried out in this case are as follows: cycas leaf [28], alfalfa sprouts [29], Dorema ammoniacum D. [30], Azadirachta indica (Neem) leaves [19], Geranium leaf [31], Parthenium leaf [32], Cinnamomum zeylanicum bark [33], Lepidium draba [34], Gundelia tournefortii L. [35], Mangifera indica leaf [36] and phlomis leaf [37].…”

Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using Glaucium corniculatum (L.) Curtis extract and evaluation of its antibacterial activity

Allafchian

Jalali

Aghaei

et al. 2018

IET nanobiotechnol.

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The metal nanoparticles, due to interesting features such as electrical, optical, chemical and magnetic properties, have been investigated repeatedly. Also, the mentioned nanoparticles have specific uses in terms of their antibacterial activity. The biosynthesis method is more appropriate than the chemical method for producing the nanoparticles because it does not need any special facilities; it is also economically affordable. In the current study, the silver nanoparticles (AgNPs) were obtained by using a very simple and low-cost method via (L.) Curtis plant extract. The characteristics of the AgNPs were investigated using techniques including: X-ray diffraction, transmission electron microscopy (TEM), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy. The SEM and TEM images showed that the nanoparticles had a spherical shape, and the mean diameter of them was 53.7 and 45 nm, respectively. The results of the disc diffusion test used for measuring the anti-bacterial activity of the synthesised nanoparticles indicated that the formed nanoparticles possessed a suitable anti-bacterial activity.

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Section: Introductionmentioning

confidence: 99%

Green synthesis of silver nanoparticles using Glaucium corniculatum (L.) Curtis extract and evaluation of its antibacterial activity

Allafchian

Jalali

Aghaei

et al. 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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Gundelia tournefortii L.: a natural source for the green synthesis of silver nanoparticles

Cited by 11 publications

References 45 publications

Green synthesis of silver nanoparticles using Glaucium corniculatum (L.) Curtis extract and evaluation of its antibacterial activity

Green synthesis of silver nanoparticles using Glaucium corniculatum (L.) Curtis extract and evaluation of its antibacterial activity

Core@shell Nanoparticles: Greener Synthesis Using Natural Plant Products

Biosynthesis of antibacterial silver nanoparticles using Astragalus verus Olivier

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