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Pseudomonas aeruginosa Mediated Synthesis of Silver Nanoparticles Having Significant Antimycotic Potential Against Plant Pathogenic Fungi

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We report the extracellular synthesis of silver nanoparticles (Ag NPs), by using Pseudomonas aeruginosa (MTCC 424), and their significant antimycotic activity against the common plant pathogenic fungi Fusarium moniliforme (MTCC 1848) and Phoma glomerata (MTCC 2710). Detection of synthesized Ag NPs was carried out using UV-Visible spectrophotometer analysis, which showed a peak at 436 nm due to surface plasmon vibration, indicating the formation of nanoparticles. Fourier Transform Infrared Spectroscopy (FTIR) analysis and Transmission Electron Microscopic (TEM) analysis confirmed the formation of spherical nanoparticles in the range of 40–60 nm. The extracellular synthesis of silver nanoparticles by using bacteria has an advantage in the downstream processing and large scale synthesis of Ag NPs. The formation of bacterium-mediated nanoparticles is eco-friendly and economically viable process. These synthesized nanoparticles showed the significant antifungal activity against plant pathogenic fungi. Thus it is a novel approach to control the plant pathogens by using synthesized Ag NPs containing novel antifungal formulations.
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Document Type: Research Article

Publication date: December 1, 2012

More about this publication?
  • 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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