A New Method for Fibrin-Based Electrospun/Sprayed Scaffold Fabrication

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Abstract

Fibrin is an optimal scaffold for tissue-engineering applications because it mimics the extracellular matrix. Despite this interesting feature, fibrin gel owns only poor mechanical properties that limit its applications. Different approaches have been used for fibrin electrospinning, however all the methods investigated required washing steps, cross-linking agent treatment or immersion. The aim of this work was to produce a bilayered fibrin/polyurethane scaffold by combination of the electrospun method and the spray, phase-inversion method for the preparation of a fibrin nanostructured layer to be attached onto a poly(ether)urethane microporous support layer. The synthetic layer was obtained by the spray, phase-inversion technique onto a rotating metallic collector, while fibrinogen was processed to obtain a nanofibrous structure by electrospinning. Finally, fibrin polymerization was obtained by thrombin solution spraying onto the electrospun nanofibers. SEM analysis showed the formation of filamentous structure with diameter in the range of μm attached onto the synthetic layer. This scaffold could be applied in soft tissue regeneration such as wound healing or as drug delivery system.

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CITATION STYLE

APA

Al Kayal, T., Losi, P., Pierozzi, S., & Soldani, G. (2020). A New Method for Fibrin-Based Electrospun/Sprayed Scaffold Fabrication. Scientific Reports, 10(1). https://doi.org/10.1038/s41598-020-61933-z

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