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      One-step green synthesis of antibacterial silver nanoparticles embedded in electrospun cyclodextrin nanofibers

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      Author
      Çelebioğlu, Aslı
      Topuz, Fuat
      Yıldız, Zehra İrem
      Uyar, Tamer
      Date
      2018
      Source Title
      Carbohydrate Polymers
      Print ISSN
      0144-8617
      Publisher
      Elsevier
      Volume
      207
      Pages
      471 - 479
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      Antibacterial electrospun nanofibers based on cyclodextrin (CD) and silver nanoparticles (Ag-NPs) were produced by solution electrospinning from aqueous and DMF solutions using different Ag contents. CD molecules acted as the reducing agent and catalyzed the formation of Ag-NPs. The nanofibers with smaller diameters were observed for the fibers generated from DMF solutions than those produced from aqueous solutions. TEM and STEM analyses revealed the Ag-NPs (∼2–5 nm depending on solvent-type and Ag loading) in nanofibers, while FTIR and surface enhanced Raman scattering (SERS) analyses showed the apparent frequency shift of OH stretching band and the enhancement of Raman bands of CD molecules with the incorporation of the Ag-NPs. The polycrystalline structure of the Ag-NPs was shown by XRD and SAED analyses over {111}, {200}, {220} and {311} planes. The nanofibers showed significant inhibition against the growth of Escherichia coli and Staphylococcus aureus owing to the antibacterial activity of the Ag-NPs.
      Keywords
      Cyclodextrin
      Nanofibers
      Electrospinning
      Silver nanoparticles
      Green synthesis
      Antibacterial
      Permalink
      http://hdl.handle.net/11693/52844
      Published Version (Please cite this version)
      https://dx.doi.org/10.1016/j.carbpol.2018.12.008
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      • Institute of Materials Science and Nanotechnology (UNAM) 1775
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