Journal
CARBOHYDRATE POLYMERS
Volume 90, Issue 1, Pages 558-568Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.05.078
Keywords
Cyclodextrin; Electrospinning; Zein; Nanofibers
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Funding
- UNAM-Institute of Materials Science and Nanotechnology
- Marie Curie International Reintegration Grant (IRG) NANOWEB [PIRG06-GA-2009-256428]
- Scientific & Technological Research Council of Turkey (TUBITAK) [111M459]
- TUBITAK-BIDEB
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Zein nanofibers containing cyclodextrins (zein/CD) were produced via electrospinning. Three types of CDs (alpha-CD, beta-CD and gamma-CD) having 10%, 25% and 50% (w/w) were individually incorporated into zein nanofibers. SEM imaging elucidated that the morphologies of the electrospun zein/CD nanofibers depended on the CD type and weight percentage. The incorporation of CDs in zein improved the electrospinnability and bead-free nanofibers were obtained at lower zein concentrations. Zein/CD nanofibers having fiber diameters similar to 100-400 nm were obtained depending on the zein concentrations, types and weight percentages of CD. XRD studies revealed that CDs were mostly distributed without forming crystalline aggregates for zein/CD nanofibers containing lower weight percentage of CDs. The surface analyses of zein/CD nanofibers by ATR-FTIR and XPS indicated that some of the CDs were present on the fiber surface. Thermal analyses showed that zein/beta-CD nanofibers have shown higher glass transition temperatures and higher degradation temperature with increasing CD content. (C) 2012 Elsevier Ltd. All rights reserved.
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