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1.
Food Sci Nutr ; 8(10): 5521-5531, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-33133554

RESUMEN

For the first time, the potential of orange and banana peels as fruit wastes was evaluated in contrast with Euphorbia condylocarpa as a widely distributed medicinal plant of Kurdistan, Iran, for biosynthesis of Fe3O4, CuO, ZnO, and TiO2 NPs. The extracts of the green sources were assessed to monitor the bioreducing phytochemicals inside them using the UV-Vis spectrophotometer. Moreover, the obtained green nanoparticles were identified using the micrograph and diffractogram techniques to show their size, shape, and morphology. Also, the antibacterial activities of the green NPs were investigated against common pathogenic bacteria of Pseudomonas aureus, Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae.

2.
Artículo en Inglés | MEDLINE | ID: mdl-24887504

RESUMEN

We report the green synthesis of silver nanoparticles by using Euphorbia condylocarpa M. bieb root extract for the synthesis of N-monosubstituted ureas in water. UV-visible studies show the absorption band at 420 nm due to surface plasmon resonance (SPR) of the silver nanoparticles. This reveals the reduction of silver ions (Ag+) to silver (Ago) which indicates the formation of silver nanoparticles (Ag NPs). This method has the advantages of high yields, simple methodology and easy work up.


Asunto(s)
Tecnología Química Verde/métodos , Nanopartículas del Metal/química , Fenómenos Ópticos , Plata/química , Urea/síntesis química , Agua/química , Catálisis , Euphorbia/química , Nanopartículas del Metal/ultraestructura , Extractos Vegetales/química , Espectroscopía de Protones por Resonancia Magnética , Espectrofotometría Ultravioleta , Espectroscopía Infrarroja por Transformada de Fourier
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