Silver nanoparticles: Influence of the temperature synthesis on the particles’ morphology

Piñero, S; Camero, Sonia; Blanco, Sergio

doi:10.1088/1742-6596/786/1/012020

Cited by 23 publications

(14 citation statements)

References 6 publications

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“…The results from the four mentioned temperatures showed a similar response, with a variation in the maximum. Similar results were reported by Piñero et al 36 According to the obtained results, 80 o C was selected as the optimum temperature for this study.…”

Section: Effect Of Temperaturesupporting

confidence: 85%

Green synthesis of silver nanoparticles using a mountain plant extract

ROUSTA¹,

Ghasemi²

2019

Rev.Roum.Chim.

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The present study investigated the synthesis of silver nanoparticles (Ag-NPs) using Artemisia Sieberi Besser leaf extract. To evaluate parameters affecting the synthesis including pH, volume of extract, concentration of silver nitrate solution, temperature and time, Ultraviolet-Visible (UV-Vis) spectroscopy was used. Ag-NPs were characterized by UV-Vis spectroscopy, Scanning electron microscopy (SEM), X-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR) and Transmission Electron Microscopy (TEM) techniques. The SEM revealed spherical morphology of the particles with the size around 41-88 nm. The XRD pattern of Ag-NPs confirmed that these nanoparticles were crystalline and had cubic structure with an average size of 20 nm. TEM analysis of synthesized nanoparticles showed spherical and cubic particles with an average size of 20 nm. The results showed that silver nanoparticles could be produced by an eco-friendly biological method with no need to any harmful chemicals using Artemisia Sieberi Besser (a mountain plant) extract.

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Section: Effect Of Temperaturesupporting

confidence: 85%

Green synthesis of silver nanoparticles using a mountain plant extract

ROUSTA¹,

Ghasemi²

2019

Rev.Roum.Chim.

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“…Several authors describe the process of nanoparticle synthesis [ 17 , 18 ] or analyze the influence of ambient conditions such as the pH of solutions, LED irradiation [ 19 ], process temperature, and stirring on AgNPs formation [ 20 , 21 , 22 ]. However, there are still a lot of questions to solve.…”

Section: Introductionmentioning

confidence: 99%

Influence of Reagents on the Synthesis Process and Shape of Silver Nanoparticles

et al. 2022

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The aim of this study was to prepare the silver nanoparticles (AgNPs) via chemical reduction and analyze the impact of used reduction agents: sodium borohydride (NaBH4), trisodium citrate (TSC), polyvinylpyrrolidone (PVP), and hydrogen peroxide (H2O2) on the reduction rate of Ag+ ions to Ag0, and on nanoparticles shape. It was proven that combinations of reduction agents dramatically influence the synthesis rate of AgNPs and the color of solutions, which depends on the shape and size of nanoparticles. NaBH4, TSC, and PVP showed good reduction power. In particular, TSC proved to be a key factor influencing the shape of AgNPs. The shape of nanoparticles influences the color of colloidal solutions. Yellow solutions, where UV-vis absorbance maxima (ABSmax) are in the wavelength interval 380–420 nm, contain spherical particles with a mean size of 25 nm, whereas the blue shift of ABSmax to wavelengths higher than 750 nm indicate the presence of triangular nanoparticles (size interval 18–150 nm). A mixture of spherical, triangular, irregular, and hexagonal nanoparticles give different color, e.g., green. The formation and stability of AgNPs was tracked by UV-vis spectroscopy, size and shape by TEM techniques, and particle size distribution was studied by particle size analyzer.

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“…The results showed that when the temperature increased, the typical absorbance peaks increased. The increase in the temperature is related to a change in the kinetics of the reaction, atoms movement on the solution (Brownian movement), and the aggregative mechanisms of nanoparticles (Piñero et al, 2017).…”

Section: Discussionmentioning

confidence: 99%

Green biosynthesis, structural characterization and anticancer activity of copper oxide nanoparticles from the brown alga Cystoseira myrica

Mohamed¹

2021

Egypt. J. of Aquatic Biolo. and Fish.

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Copper oxide nanoparticles (CuONPs) were synthesized by a green method using aqueous extract of Cystoseira myrica as capping and reducing agent. A UV-visible spectrophotometer was used to characterize the produced nanoparticles. The aqueous extract of C. myrica at pH 5 and 100°C after 150 minutes was shown to be the optimal condition for the synthesis of copper oxide nanoparticles. The Structure and characters of synthesized nanoparticles were confirmed using TEM, DLS, XRD, and FTIR. The efficiency of different concentrations of copper oxide nanoparticles (25, 50, 75, 100) µg/ml synthesized from aqueous extract of C. myrica exhibit high antitumor activity against some cancer lines such as HepG2 and MCF-7. The percent of cell viability decreases as the concentration of nanoparticles rises. Copper oxide nanoparticles at a concentration of 100 µg/ml were found to have the lowest percentage of cell viability in HepG2 (18.7%), while MCF-7 was (19.27%).

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Silver nanoparticles: Influence of the temperature synthesis on the particles’ morphology

Cited by 23 publications

References 6 publications

Green synthesis of silver nanoparticles using a mountain plant extract

Green synthesis of silver nanoparticles using a mountain plant extract

Influence of Reagents on the Synthesis Process and Shape of Silver Nanoparticles

Green biosynthesis, structural characterization and anticancer activity of copper oxide nanoparticles from the brown alga Cystoseira myrica

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