Phytosynthesis of Silver Nanoparticles Using Leonurus cardiaca L. Extracts

The present work describes, for the first time in the literature, the phytosynthesis of silver nanoparticles using L. extracts. The influence of the extraction method (classical temperature extraction and microwave extraction), as well as of the extract concentration on the characteristics of the na...

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Veröffentlicht in:Materials 2023-04, Vol.16 (9), p.3472
Hauptverfasser: Fierascu, Ioana Catalina, Fierascu, Irina, Baroi, Anda Maria, Ungureanu, Camelia, Spinu, Simona, Avramescu, Sorin Marius, Somoghi, Raluca, Fierascu, Radu Claudiu, Dinu-Parvu, Cristina Elena
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container_issue 9
container_start_page 3472
container_title Materials
container_volume 16
creator Fierascu, Ioana Catalina
Fierascu, Irina
Baroi, Anda Maria
Ungureanu, Camelia
Spinu, Simona
Avramescu, Sorin Marius
Somoghi, Raluca
Fierascu, Radu Claudiu
Dinu-Parvu, Cristina Elena
description The present work describes, for the first time in the literature, the phytosynthesis of silver nanoparticles using L. extracts. The influence of the extraction method (classical temperature extraction and microwave extraction), as well as of the extract concentration on the characteristics of the nanoparticles, was studied using analytical methods, such as UV-Vis spectrometry, X-ray diffraction, dynamic light scattering, and transmission electron microscopy. Experimental data suggest that use of lower extract concentration leads to smaller dimensions nanoparticles, the same effect using the extract obtained by microwave-assisted extraction. The smallest recorded crystallite sizes (by X-ray diffraction) were under 3 nm. The antioxidant properties (determined by the DPPH assay) and the antimicrobial potential (determined against Gram-negative and Gram-positive strains) are enhanced by the phytosynthesis process (as demonstrated by the comparison of the nanoparticles' properties with the parent extracts). The present work could also represent an important step in obtaining nanoparticles with enhanced properties and controlled morphologies, but also offers information on the phytosynthesis of metallic nanoparticles using low extract concentrations.
doi_str_mv 10.3390/ma16093472
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source Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central Open Access; MDPI - Multidisciplinary Digital Publishing Institute; PubMed Central; Free Full-Text Journals in Chemistry
subjects Acids
Chromatography
Crystallites
Energy consumption
Environmental protection
Ethanol
Flavonoids
Light diffraction
Methods
Nanomaterials
Nanoparticles
Photon correlation spectroscopy
Phytochemicals
Silver
Solvents
X-ray diffraction
title Phytosynthesis of Silver Nanoparticles Using Leonurus cardiaca L. Extracts
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