title: Green synthesis of silver nanoparticles using Eucalyptus leucoxylon leaves extract and evaluating the antioxidant activities of extract.
abstract: This study was designed to examine the in vitro antioxidant activity of essential oil and methanol extracts of Eucalyptus leucoxylon. Furthermore, the polar fraction of the extract was used as a reducing agent for the green synthesis of silver nanoparticles (Ag NPs). Antioxidant activities of the samples were determined by using three different test systems, namely DPPH and β-carotene/linoleic acid and reducing power. The structure and composition of the prepared Ag NPs were characterised by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and UV-vis spectroscopy. Synthesised Ag NPs were almost spherical in shape with an average diameter of about ∼ 50 nm and synthesised within 120 min reaction time at room temperature.
authors.affiliation: a Nano-Science Center, Imam Hossein University , Tehran , Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Rahimi-Nasrabadi
authors.forename: Seied Mahdi
authors.initials: SM
authors.lastname: Pourmortazavi
authors.forename: Seyed Ataollah Sadat
authors.initials: SA
authors.lastname: Shandiz
authors.forename: Farhad
authors.initials: F
authors.lastname: Ahmadi
authors.forename: Hossein
authors.initials: H
authors.lastname: Batooli
mesh_terms: D000975:Antioxidants / Q000032:analysis* / Q000494:pharmacology; D001713:Biphenyl Compounds / Q000494:pharmacology; D005052:Eucalyptus / Q000737:chemistry*; D019787:Linoleic Acid / Q000494:pharmacology; D053768:Metal Nanoparticles / Q000737:chemistry*; D000432:Methanol / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D009822:Oils, Volatile / Q000737:chemistry; D010084:Oxidation-Reduction; D010851:Picrates / Q000494:pharmacology; D018515:Plant Leaves / Q000737:chemistry; D012834:Silver / Q000737:chemistry*; D013696:Temperature; D014961:X-Ray Diffraction; D019207:beta Carotene
chemical_list: D000975:Antioxidants; D001713:Biphenyl Compounds; D009822:Oils, Volatile; D010851:Picrates; D019207:beta Carotene; D012834:Silver; D019787:Linoleic Acid; C004931:1,1-diphenyl-2-picrylhydrazyl; D000432:Methanol
keywords: Eucalyptus leucoxylon; antioxidant activity; green synthesis; silver nanoparticles