title: Piper nigrum leaf and stem assisted green synthesis of silver nanoparticles and evaluation of its antibacterial activity against agricultural plant pathogens.
abstract: Utilization of biological materials in synthesis of nanoparticles is one of the hottest topics in modern nanoscience and nanotechnology. In the present investigation, the silver nanoparticles were synthesized by using the leaf and stem extract of Piper nigrum. The synthesized nanoparticle was characterized by UV-vis spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), energy dispersive X-ray analysis (EDAX), and Fourier Transform Infrared Spectroscopy (FTIR). The observation of the peak at 460 nm in the UV-vis spectra for leaf- and stem-synthesized silver nanoparticles reveals the reduction of silver metal ions into silver nanoparticles. Further, XRD analysis has been carried out to confirm the crystalline nature of the synthesized silver nanoparticles. The TEM images show that the leaf- and stem-synthesized silver nanoparticles were within the size of about 7-50 nm and 9-30 nm, respectively. The FTIR analysis was performed to identify the possible functional groups involved in the synthesis of silver nanoparticles. Further, the antibacterial activity of the green-synthesized silver nanoparticles was examined against agricultural plant pathogens. The antibacterial property of silver nanoparticles is a beneficial application in the field of agricultural nanotechnology.
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Kanniah
authors.initials: K
authors.lastname: Paulkumar
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Gnanadhas
authors.initials: G
authors.lastname: Gnanajobitha
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Mahendran
authors.initials: M
authors.lastname: Vanaja
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Shanmugam
authors.initials: S
authors.lastname: Rajeshkumar
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Chelladurai
authors.initials: C
authors.lastname: Malarkodi
authors.affiliation: Department of Inorganic Chemistry, University of Madras, Guindy, Chennai, Tamil Nadu 600 025, India.
authors.forename: Kannaiyan
authors.initials: K
authors.lastname: Pandian
authors.affiliation: Environmental Nanotechnology Division, Sri Paramakalyani Centre for Environmental Sciences, Manonmaniam Sundaranar University, Alwarkurichi, Tamil Nadu 627412, India.
authors.forename: Gurusamy
authors.initials: G
authors.lastname: Annadurai
mesh_terms: D000890:Anti-Infective Agents / Q000737:chemistry; D054884:Host-Pathogen Interactions; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D010641:Phenotype; D029222:Piper nigrum / Q000737:chemistry* / Q000382:microbiology; D010935:Plant Diseases / Q000382:microbiology; D010936:Plant Extracts / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry* / Q000382:microbiology; D018547:Plant Stems / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*
chemical_list: D000890:Anti-Infective Agents; D010936:Plant Extracts; D012834:Silver