Related resources
Full-text held externally
Search for item elsewhere
University researcher(s)
Academic department(s)
Production and cross-sectional characterization of aligned co-electrospun hollow microfibrous bulk assemblies
F.-L. Zhou, G.J.M. Parker, S.J. Eichhorn, P.L. Hubbard Cristinacce
Materials Characterization. 2015;109:25-35.
Access to files
Full-text and supplementary files are not available from Manchester eScholar. Full-text is available externally using the following links:
Full-text held externally
Abstract
The development of co-electrospun(co-ES) hollowmicrofibrous assemblies of an appreciable thickness is critical for many practical applications, including filtration membranes and tissue-mimicking scaffolds. In this study, thick uniaxially aligned hollow microfibrous assemblies forming fiber bundles and strips were prepared by co- ES of polycaprolactone (PCL) and polyethylene oxide (PEO) as shell and corematerials, respectively. Hollowmi- crofiber bundles were deposited on a fixed rotating disc, which resulted in non-controllable cross-sectional shapes on a macroscopic scale. In comparison, fiber strips were produced with tuneable thickness and width by additionally employing an xâÂÂy translation stage in co-ES. Scanning electron microscopy (SEM) images of cross-sections of fiber assemblies were analyzed to investigate the effects of production time (from 0.5 h to 12 h), core flow rate (from 0.8 mL/h to 2.0 mL/h) and/or translation speed (from 0.2 mm/s to 5 mm/s) on the pores and porosity.Weobserved significant changes in pore size and shapewith core flowrate but the influence of production time varied; five strips produced under the sameconditions had reasonably good size and porosity reproducibility; pore sizes didn't vary significantly fromstrip bottomto surface, although the porosity gradually decreased and then returned to the original level.
Keyword(s)
Bibliographic metadata
- European Commission - GOV30
- Cancer Research UK - E8