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    A Purely Green Synthesis of Silver Nanoparticles using Carica papaya, Manihot esculenta and Morinda citrifolia: Synthesis and Antibacterial Evaluations.

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    Access Status
    Open access
    Authors
    Hadibarata, Tony
    Syafiuddin, A.
    Salmiati, S.
    Salim, M.
    Kueh, A.
    Sari, A.
    Date
    2017
    Type
    Journal Article
    
    Metadata
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    Citation
    Hadibarata, T. and Syafiuddin, A. and Salmiati, S. and Salim, M. and Kueh, A. and Sari, A. 2017. A Purely Green Synthesis of Silver Nanoparticles using Carica papaya, Manihot esculenta and Morinda citrifolia: Synthesis and Antibacterial Evaluations. Bioprocess and Biosystems Engineering. 40 (9): pp. 1349-1361.
    Source Title
    Bioprocess and Biosystems Engineering
    DOI
    10.1007/s00449-017-1793-z
    ISSN
    1615-7591
    School
    Curtin Malaysia
    URI
    http://hdl.handle.net/20.500.11937/61135
    Collection
    • Curtin Research Publications
    Abstract

    Green procedure for synthesizing silver nanoparticles (AgNPs) is currently considered due to its economy and toxic-free effects. Several existing works on synthesizing AgNPs using leaves extract still involve the use of physical or mechanical treatment such as heating or stirring, which consume a lot of energy. To extend and explore the green extraction philosophy, we report here the synthesis and antibacterial evaluations of a purely green procedure to synthesize AgNPs using Carica papaya, Manihot esculenta, and Morinda citrifolia leaves extract without the aforementioned additional treatment. The produced AgNPs were characterized using the ultraviolet–visible spectroscopy, field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier transform infrared spectroscopy, and antibacterial investigations. For antibacterial tests, two bacteria namely Escherichia coli and Bacillus cereus were selected. The presently employed method has successfully produced spherical AgNPs having sizes ranging from 9 to 69 nm, with plasmonic characteristics ranging from 356 to 485 nm, and energy-dispersive X-ray peak at approximately 3 keV. In addition, the smallest particles can be produced when Manihot esculenta leaves extract was applied. Moreover, this study also confirmed that both the leaves and synthesized AgNPs exhibit the antibacterial capability, depending on their concentration and the bacteria type.

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