Details
| Original language | English |
|---|---|
| Pages (from-to) | 801-810 |
| Number of pages | 10 |
| Journal | International Journal of Artificial Organs |
| Volume | 41 |
| Issue number | 11 |
| Publication status | Published - 31 Oct 2018 |
Abstract
Introduction: This article explores the effect of horizontal and vertical setups on blend electrospinning with two polymers having vastly different properties - poly-ε-caprolactone and gelatin, and subsequent effect of the resulting microstructure on viability of seeded cells. Methods: Poly-ε-caprolactone and gelatin of varying blend concentrations were electrospun in horizontal and vertical setup orientations. NIH 3T3 fibroblasts were seeded on these scaffolds to assess cell viability changes in accordance with change in microstructure. Results: Blend electrospinning yielded a heterogeneous microstructure in the vertical orientation beyond a critical concentration of gelatin, and a homogeneous microstructure in the horizontal orientation. Unblended poly-ε-caprolactone electrospinning showed no significant difference in fibre diameter or pore size in either orientation. Mechanical testing showed reduced elasticity when poly-ε-caprolactone is blended with gelatin but an overall increase in tensile strength in the vertically spun samples. Cells on vertically spun samples showed significantly higher viabilities by day 7. Discussion: The composite microstructure obtained in vertically spun poly-ε-caprolactone -gelatin blends has a positive effect on viability of seeded cells. Such scaffolds can be considered suitable candidates for cardiovascular tissue engineering where cell infiltration is crucial.
Keywords
- Biocompatibility, Fibre diameter, Infiltration, Polymer blends, Pore size, Vascular graft
ASJC Scopus subject areas
- Chemical Engineering(all)
- Bioengineering
- Medicine(all)
- Medicine (miscellaneous)
- Materials Science(all)
- Biomaterials
- Engineering(all)
- Biomedical Engineering
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In: International Journal of Artificial Organs, Vol. 41, No. 11, 31.10.2018, p. 801-810.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Impact of setup orientation on blend electrospinning of poly-ε-caprolactonegelatin scaffolds for vascular tissue engineering
AU - Suresh, Sinduja
AU - Gryshkov, Oleksandr
AU - Glasmacher, Birgit
N1 - Funding Information: The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) for the Cluster of Excellence REBIRTH (EXC 62/1). We thank M.S. Balamuruganandam for relevant Master Thesis work, Dr. rer. nat. Katerina Zelena for laboratory support and Prof. Dr Ir. Willem F. Wolkers for use of and assistance with the FTIR spectroscope. Publisher Copyright: © The Author(s) 2018. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2018/10/31
Y1 - 2018/10/31
N2 - Introduction: This article explores the effect of horizontal and vertical setups on blend electrospinning with two polymers having vastly different properties - poly-ε-caprolactone and gelatin, and subsequent effect of the resulting microstructure on viability of seeded cells. Methods: Poly-ε-caprolactone and gelatin of varying blend concentrations were electrospun in horizontal and vertical setup orientations. NIH 3T3 fibroblasts were seeded on these scaffolds to assess cell viability changes in accordance with change in microstructure. Results: Blend electrospinning yielded a heterogeneous microstructure in the vertical orientation beyond a critical concentration of gelatin, and a homogeneous microstructure in the horizontal orientation. Unblended poly-ε-caprolactone electrospinning showed no significant difference in fibre diameter or pore size in either orientation. Mechanical testing showed reduced elasticity when poly-ε-caprolactone is blended with gelatin but an overall increase in tensile strength in the vertically spun samples. Cells on vertically spun samples showed significantly higher viabilities by day 7. Discussion: The composite microstructure obtained in vertically spun poly-ε-caprolactone -gelatin blends has a positive effect on viability of seeded cells. Such scaffolds can be considered suitable candidates for cardiovascular tissue engineering where cell infiltration is crucial.
AB - Introduction: This article explores the effect of horizontal and vertical setups on blend electrospinning with two polymers having vastly different properties - poly-ε-caprolactone and gelatin, and subsequent effect of the resulting microstructure on viability of seeded cells. Methods: Poly-ε-caprolactone and gelatin of varying blend concentrations were electrospun in horizontal and vertical setup orientations. NIH 3T3 fibroblasts were seeded on these scaffolds to assess cell viability changes in accordance with change in microstructure. Results: Blend electrospinning yielded a heterogeneous microstructure in the vertical orientation beyond a critical concentration of gelatin, and a homogeneous microstructure in the horizontal orientation. Unblended poly-ε-caprolactone electrospinning showed no significant difference in fibre diameter or pore size in either orientation. Mechanical testing showed reduced elasticity when poly-ε-caprolactone is blended with gelatin but an overall increase in tensile strength in the vertically spun samples. Cells on vertically spun samples showed significantly higher viabilities by day 7. Discussion: The composite microstructure obtained in vertically spun poly-ε-caprolactone -gelatin blends has a positive effect on viability of seeded cells. Such scaffolds can be considered suitable candidates for cardiovascular tissue engineering where cell infiltration is crucial.
KW - Biocompatibility
KW - Fibre diameter
KW - Infiltration
KW - Polymer blends
KW - Pore size
KW - Vascular graft
UR - http://www.scopus.com/inward/record.url?scp=85055625799&partnerID=8YFLogxK
U2 - 10.1177/0391398818803478
DO - 10.1177/0391398818803478
M3 - Article
C2 - 30376770
AN - SCOPUS:85055625799
VL - 41
SP - 801
EP - 810
JO - International Journal of Artificial Organs
JF - International Journal of Artificial Organs
SN - 0391-3988
IS - 11
ER -