Plant-mediated synthesis of silver nanoparticles using parsley Petroselinum crispum leaf extract: spectral analysis of the particles and antibacterial studyReportar como inadecuado




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Applied Nanoscience

, Volume 5, Issue 8, pp 945–951

First Online: 27 December 2014Received: 22 November 2014Accepted: 17 December 2014

Abstract

Synthesis of nanomaterials may involve various routes including physical, chemical and biological approaches. Here, the biological green route was chosen to prepare silver nanoparticles from silver salts to avoid the requirement of costly instruments and involvement of hazardous chemicals as well. To make the process clean and green, leaf extract of parsley Petroselinum crispum was used to synthesize Ag nanoparticles at room temperature. The formation of Ag-nanoparticles was monitored by UV–Vis spectroscopy. The presence of silver in the sample and its crystalline nature were verified by X-ray diffraction XRD analysis. The size distribution profile and particle size in the suspension were manipulated from dynamic light scattering DLS pattern. The shape, size and morphology of the biogenic nanoparticles were studied using high resolution transmission electron microscope TEM. Fourier transform infra-red spectroscopy was used to detect the biomolecules responsible for reduction of silver ions. These biogenic Ag-nanoparticles showed appreciable antibacterial efficacy against three bacteria—Klebsiella pneumoniae,Escherichia coli and Staphylococcus aureus.

KeywordsSilver nanoparticles Parsley Petroselinum crispum leaf extract UV–Vis spectroscopy XRD TEM Antibacterial activity  Download fulltext PDF



Autor: Kaushik Roy - C. K. Sarkar - C. K. Ghosh

Fuente: https://link.springer.com/







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