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Emulsion Electrospinning as an Approach to Fabricate PLGA/Chitosan Nanofibers for Biomedical Applications
Isfahan University of Technology, Iran / Uppsala University, Sweden .
Isfahan University of Technology, Iran .
Uppsala University, Sweden .
Uppsala University, Sweden .
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2014 (English)In: BioMed Research International, ISSN 2314-6133, no 475280Article in journal (Refereed) Published
Abstract [en]

Novel nanofibers from blends of polylactic-co-glycolic acid (PLGA) and chitosan have been produced through an emulsion electrospinning process. The spinning solution employed polyvinyl alcohol (PVA) as the emulsifier. PVA was extracted from the electrospun nanofibers, resulting in a final scaffold consisting of a blend of PLGA and chitosan. The fraction of chitosan in the final electrospun mat was adjusted from 0 to 33%. Analyses by scanning and transmission electron microscopy show uniform nanofibers with homogenous distribution of PLGA and chitosan in their cross section. Infrared spectroscopy verifies that electrospun mats contain both PLGA and chitosan. Moreover, contact angle measurements show that the electrospun PLGA/chitosanmats are more hydrophilic than electrospun mats of pure PLGA. Tensile strengths of 4.94 MPa and 4.21 MPa for PLGA/chitosan in dry and wet conditions, respectively, illustrate that the polyblend mats of PLGA/chitosan are strong enough for many biomedical applications. Cell culture studies suggest that PLGA/chitosan nanofibers promote fibroblast attachment and proliferation compared to PLGA membranes. It can be assumed that the nanofibrous composite scaffold of PLGA/chitosan could be potentially used for skin tissue reconstruction.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2014. no 475280
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-105421DOI: 10.1155/2014/475280ISI: 000331740900001OAI: oai:DiVA.org:liu-105421DiVA: diva2:706644
Available from: 2014-03-21 Created: 2014-03-21 Last updated: 2014-03-28

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Citation style
  • apa
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