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Size and Shape Controlled Greener Synthesis of AgNPs Using Cissus quadrangularis Twig at Room Temperature

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Abstract:

This work is the first report on the biomimetic synthesize of silver nanoparticles (AgNPs) with the reduction of AgNO3 by Cissus quadrangularis weed plant. Cissus quadrangularis plant aqueous extract was used for the synthesis of AgNPs at room temperature. The size and shape of AgNPs synthesized were depending on the initial extraction temperature employed and the pH of the reaction medium. The synthesized AgNPs were corroborated by XRD and SEM with EDX analyses. The diffraction peaks in XRD were indexed to the face-centered cubic (fcc) phase of silver. The SEM images of AgNPs showed cubical shape for 60 C extraction and spherical shape for 100 C extraction. UV-Vis absorption spectra of synthesized silver nano colloidal solutions showed surface plasmon resonance (SPR) at wavelength of 438 for 60 C extraction and 474 nm for 100 C extraction. This procedure is expected to be a new pathway for greenchemical, low cost and shapecontrolled synthesis of AgNPs.

Keywords: CRYSTAL STRUCTURE; METALS; NANOSTRUCTURES; X-RAY DIFFRACTION

Document Type: Research Article

DOI: https://doi.org/10.1166/jbns.2012.1072

Publication date: 2012-06-01

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  • Bionanoscience attempts to harness various functions of biological macromolecules and integrate them with engineering for technological applications. It is based on a bottom-up approach and encompasses structural biology, biomacromolecular engineering, material science, and engineering, extending the horizon of material science. The journal aims at publication of (i) Letters (ii) Reviews (3) Concepts (4) Rapid communications (5) Research papers (6) Book reviews (7) Conference announcements in the interface between chemistry, physics, biology, material science, and technology. The use of biological macromolecules as sensors, biomaterials, information storage devices, biomolecular arrays, molecular machines is significantly increasing. The traditional disciplines of chemistry, physics, and biology are overlapping and coalescing with nanoscale science and technology. Currently research in this area is scattered in different journals and this journal seeks to bring them under a single umbrella to ensure highest quality peer-reviewed research for rapid dissemination in areas that are in the forefront of science and technology which is witnessing phenomenal and accelerated growth.
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