Bioreduction potentials of dried root of Zingiber officinale for a simple green synthesis of silver nanoparticles: Antibacterial studies

Autor: L. John Kennedy, K. Kaviyarasu, Malik Maaza, Hamad A. Al-Lohedan, R. Jothi Ramalingam, J. Judith Vijaya, N. Jayaprakash, K. Kombaiah, V M Mansoor-Ali
Rok vydání: 2017
Předmět:
Silver
Scanning electron microscope
education
Biophysics
Analytical chemistry
Metal Nanoparticles
02 engineering and technology
Ginger
010402 general chemistry
Plant Roots
01 natural sciences
Silver nanoparticle
Crystallinity
Microscopy
Electron
Transmission
X-Ray Diffraction
Gram-Negative Bacteria
Spectroscopy
Fourier Transform Infrared
Radiology
Nuclear Medicine and imaging
Particle Size
Radiation
Radiological and Ultrasound Technology
Plant Extracts
Chemistry
Spectrometry
X-Ray Emission
Green Chemistry Technology
Electrochemical Techniques
021001 nanoscience & nanotechnology
Anti-Bacterial Agents
0104 chemical sciences
Transmission electron microscopy
Microscopy
Electron
Scanning
Crystallite
Selected area diffraction
Cyclic voltammetry
0210 nano-technology
Antibacterial activity
Nuclear chemistry
Zdroj: Journal of Photochemistry and Photobiology B: Biology. 177:62-68
ISSN: 1011-1344
DOI: 10.1016/j.jphotobiol.2017.10.007
Popis: Green synthesis of silver nanoparticles (Ag NPs) using an extract of dried Zingiber officinale (ginger) root as a reducing and capping agent in the presence of microwave irradiation was herein reported for the first time. The formation of symmetrical spheres is confirmed from the UV-Visible spectrum of Ag NPs. Fourier transform infra-red spectroscopy confirms the formation of the Ag NPs. X-ray diffraction analysis was utilized to calculate the crystallite size of Ag NPs and the value was found to be 10nm. High-resolution transmission electron microscopy and high-resolution scanning electron microscopy were used to investigate the morphology and size of the synthesized samples. The sphere like morphology is confirmed from the images. The purity and crystallinity of Ag NPs is confirmed by energy-dispersive X-Ray analysis and selected area electron diffraction respectively. The electrochemical behavior of the synthesized Ag NPs was assessed by cyclic voltammetry (CV) and shows the redox peaks in the potential range of -1.1 to +1.1V. Agar diffusion method is used to examine the antibacterial activity of Ag NPs. For this purpose, two gram positive and two gram negative bacteria were studied. This single step approach was found to be simple, short time, cost-effective, reproducible, and eco-friendly.
Databáze: OpenAIRE
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