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Advanced Materials
Article
License: publisher-specific, author manuscript
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Advanced Materials
Article . 2018 . Peer-reviewed
License: Wiley Online Library User Agreement
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Melt Electrospinning Writing of Highly Ordered Large Volume Scaffold Architectures

Authors: Felix M. Wunner; Marie‐Luise Wille; Thomas G. Noonan; Onur Bas; Paul D. Dalton; Elena M. De‐Juan‐Pardo; Dietmar W. Hutmacher;

Melt Electrospinning Writing of Highly Ordered Large Volume Scaffold Architectures

Abstract

AbstractThe additive manufacturing of highly ordered, micrometer‐scale scaffolds is at the forefront of tissue engineering and regenerative medicine research. The fabrication of scaffolds for the regeneration of larger tissue volumes, in particular, remains a major challenge. A technology at the convergence of additive manufacturing and electrospinning–melt electrospinning writing (MEW)–is also limited in thickness/volume due to the accumulation of excess charge from the deposited material repelling and hence, distorting scaffold architectures. The underlying physical principles are studied that constrain MEW of thick, large volume scaffolds. Through computational modeling, numerical values variable working distances are established respectively, which maintain the electrostatic force at a constant level during the printing process. Based on the computational simulations, three voltage profiles are applied to determine the maximum height (exceeding 7 mm) of a highly ordered large volume scaffold. These thick MEW scaffolds have fully interconnected pores and allow cells to migrate and proliferate. To the best of the authors knowledge, this is the first study to report that z‐axis adjustment and increasing the voltage during the MEW process allows for the fabrication of high‐volume scaffolds with uniform morphologies and fiber diameters.

Country
Australia
Keywords

Physical sciences, Engineering, Chemical sciences, 610

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    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    235
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    influence
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    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
235
Top 1%
Top 10%
Top 0.1%
Green
hybrid