GC-MS analysis of bioactive components and biosynthesis of silver nanoparticles using Hybanthus enneaspermus at room temperature evaluation of their stability and its larvicidal activity.
作者： T. Y. Suman , S. R. Radhika Rajasree , C. Jayaseelan , R. Regina Mary , S. Gayathri
DOI: 10.1007/S11356-015-5468-5
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摘要: Green synthesis of silver nanoparticles (AgNPs) using Hybanthus enneaspermus extract at room temperature that act as a reducing agent well capping has been investigated. The synthesized AgNPs were characterized by UV-visible spectroscopy, X-ray diffraction (XRD), Fourier transform infrared (FTIR), zeta potential, and dynamic light scattering (DLS) transmission electron microscopy (TEM) energy-dispersive (EDX). surface plasmon resonance was observed 420 nm in the spectrum. XRD peaks 2θ values 38.20°, 44.40°, 64.60°, 77.50° which are indexed (111), (200), (220), (311) bands face-centered cubic (fcc) structures silver. FTIR revealed capped with plant compounds alcohol, phenols, carbonyl, amines, amide functional groups. TEM image shows particles spherical, hexagonal, triangular shape, size range 16-26 nm. Further, DLS exhibits average 25.2 measured (-27.1 mV) proves stability AgNPs. conversion Ag(+) ions into Ag(0) calculated inductively coupled plasma atomic emission spectroscopy (ICP-MS) found to be 96 %. biosynthesized showed larvicidal activity LC50 17.24 13.12 mg/L against fourth-instar larvae Anopheles subpictus Culex quinquefasciatus, respectively. GC-MS analysis 39 bioactive phytochemical have possess wide activities, may help protection incurable diseases.
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