title: Biosynthesis, characterisation and antimicrobial activity of silver nanoparticles using Hibiscus rosa-sinensis petals extracts.
abstract: Green synthesis of metallic nanoparticles has lured the world from the chemical and physical approaches owing to its rapid, non-hazardous and economic aspect of production mechanism. In this study, silver nanoparticles (AgNPs) were synthesised using petal extracts of Hibiscus rosa-sinensis. The AgNPs displayed characteristic surface plasmon resonance peak at around 421 nm having a mean particle size of 76.25±0.17 nm and carried a charge of -41±0.2 mV. The X-ray diffraction patterns displayed typical peaks of face centred cubic crystalline silver. The surface morphology was characterised by scanning electron microscopy and atomic force microscopy. Fourier transform infrared spectroscopy studies confirmed the surface modifications of the functional groups for the synthesis of AgNPs. Furthermore, the synthesised AgNPs displayed proficient antimicrobial activity against pathogenic strains of Vibrio cholerae, Escherichia coli, Klebsiella pneumoniae and Staphylococcus aureus.
authors.affiliation: Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India.
authors.forename: Debasis
authors.initials: D
authors.lastname: Nayak
authors.affiliation: Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India.
authors.forename: Sarbani
authors.initials: S
authors.lastname: Ashe
authors.affiliation: Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India.
authors.forename: Pradipta Ranjan
authors.initials: PR
authors.lastname: Rauta
authors.affiliation: Immunology and Molecular Medicine Laboratory, Department of Life Science, National Institute of Technology, Rourkela, Odisha, India. nayakb@nitrkl.ac.in.
authors.forename: Bismita
authors.initials: B
authors.lastname: Nayak
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry* / Q000378:metabolism / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects; D001709:Biotechnology; D035264:Flowers / Q000737:chemistry*; D031584:Hibiscus / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D010936:Plant Extracts / Q000378:metabolism*; D012834:Silver / Q000737:chemistry* / Q000378:metabolism / Q000494:pharmacology
chemical_list: D000890:Anti-Infective Agents; D010936:Plant Extracts; D012834:Silver