Paper
Biosynthesis of Gold Nanoparticles Using Extract of Grape (Vitis Vinifera) Leaves and Seeds
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Authors:
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Eman H. Ismail; Mostafa M.H. Khalil; Fozia A. Al Seif; Fatma El-Magdoub
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Abstract
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A novel synthesis gold nanoparticles (GNPs) using a water extract of grape leaves and seeds as a natural source of both a reducing and stabilizing agents were reported. The gold nanoparticles obtained were characterized by UV–visible spectra, transmission electron microscopy (TEM) and X-ray diffraction (XRD). TEM studies showed the particles to be of various shapes and sizes. The XRD patterns of the GNPs showed a (1 1 1) preferential orientation of the gold nanoparticles. Fourier transform infra-red spectroscopy (FTIR) measurements showed the GNPs having a coating of the extract compounds indicating a possible role of phenolic groups for capping and stabilization of the gold nanoparticles. The photoluminescence measurements revealed the oxidation of the extract compounds during the process of Au3+ reduction. As we used green and eco-friendly synthetic reagents used in this method, the gold nanoparticles could have potential for application in bio-molecular imaging and therapy.
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Keywords
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Gold Nanoparticles; Grape Leaves; Grape Seeds Extract; Antioxidant
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StartPage
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1
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EndPage
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12
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Doi
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