Controlling Electrospun Polymer Morphology for Tissue Engineering Demonstrated Using hepG2 Cell Line.

Journal of Visualized Experiments : JoVE
Thomas S R BateAnthony Callanan

Abstract

Electrospinning affords researchers the opportunity to fabricate reproducible micro to nanoscale polymer fibers. The 3D fibrous architecture of electrospun polymers is regarded as a structural imitation of the extracellular matrix (ECM). Hence, electrospun fibers fabricated from biocompatible polymers have been widely investigated by tissue engineering researchers for their potential role as an artificial ECM for guiding tissue growth both in vitro and in vivo. All cells are acutely sensitive to their mechanical environment. This has been demonstrated by the discovery of multiple mechanotransduction pathways intrinsically linked to the cytoskeletal actin filaments. The cytoskeleton acts as a mechanical sensor that can direct the functionality and differentiation of the host cell depending on the stiffness and morphology of its substrate. Electrospun fibers can be tuned both in terms of fiber size and morphology to easily modulate the mechanical environment within a fibrous polymer scaffold. Here, methods for electrospinning polycaprolactone (PCL) for three distinct morphologies at two different fiber diameters are described. The morphological fiber categories consist of randomly oriented fibers, aligned fibers, and porous cryog...Continue Reading

Citations

Jun 30, 2021·Biofabrication·James Alexander ReidAnthony Callanan
Sep 8, 2021·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Yunxi Gao, Anthony Callanan
Oct 30, 2021·Tissue Engineering and Regenerative Medicine·Büsra Baskapan, Anthony Callanan

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