Research Paper

Journal of Nanoparticle Research

, Volume 13, Issue 5, pp 2021-2028

First online:

Microwave-assisted rapid extracellular synthesis of stable bio-functionalized silver nanoparticles from guava (Psidium guajava) leaf extract

  • Deshpande RaghunandanAffiliated withH.K.E.S’s College of Pharmacy
  • , Bedre D. MaheshAffiliated withMaterials Chemistry Laboratory, Department of Material Science, Gulbarga University
  • , S. BasavarajaAffiliated withVeeco-India Nanotechnology Laboratory, Jawaharlal Nehru Centre for Advanced Scientific Research
  • , S. D. BalajiAffiliated withMaterials Chemistry Laboratory, Department of Material Science, Gulbarga University
  • , S. Y. ManjunathAffiliated withSri Krupa, Institute of Pharmaceutical Science
  • , A. VenkataramanAffiliated withMaterials Chemistry Laboratory, Department of Material Science, Gulbarga University Email author 

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Abstract

Our research interest centers on microwave-assisted rapid extracellular synthesis of bio-functionalized silver nanoparticles of 26 ± 5 nm from guava (Psidium guajava) leaf extract with control over dimension and composition. The reaction occurs very rapidly as the formation of spherical nanoparticles almost completed within 90 s. The probable pathway of the biosynthesis is suggested. Appearance, crystalline nature, size and shape of nanoparticles are understood by UV–vis (UV–vis spectroscopy), FTIR (fourier transform infrared spectroscopy), XRD (X-ray diffraction), FESEM (field emission scanning electron microscopy) and TEM (transmission electron microscopy) techniques. Microwave-assisted route is selected for the synthesis of silver nanoparticles to carry out the reaction fast, suppress the enzymatic action and to keep the process environmentally clean and green.

Keywords

Silver nanoparticles Guava (Psidium guajava) leaf extract Microwave Field emission scanning electron microscopy Transmission electron microscopy Biosynthesis Nanobiotechnology