One-step green synthesis of antibacterial silver nanoparticles embedded in electrospun cyclodextrin nanofibers
Author
Çelebioğlu, Aslı
Topuz, Fuat
Yıldız, Zehra İrem
Uyar, Tamer
Date
2018Source Title
Carbohydrate Polymers
Print ISSN
0144-8617
Publisher
Elsevier
Volume
207
Pages
471 - 479
Language
English
Type
ArticleItem 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.