What question did this study set out to answer?

To fabricate tubular thermoplastic polyurethane scaffolds and evaluate their morphology, mechanical properties, leak-tightness, and cytocompatibility for small-diameter vascular graft applications.

September 17, 2026Cell and Tissue Biology

Development of Thermoplastic Polyurethane Scaffolds for Vascular Tissue Engineering

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Authors

DTD. Yu. TrukhachevaNational University of Science and Technology EZE. D. ZelenovaNational University of Science and Technology SKS. Sh. KarshievaNational University of Science and Technology

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Implication

In vitro study demonstrates high cytocompatibility and artery-matched compliance in electrospun polyurethane grafts, suggesting potential for small-diameter vascular replacements.

Key Points

To fabricate tubular thermoplastic polyurethane scaffolds and evaluate their morphology, mechanical properties, leak-tightness, and cytocompatibility for small-diameter vascular graft applications.
Tubular scaffolds were fabricated via electrospinning onto a rotating collector and characterized for morphology using scanning electron microscopy.
Mechanical properties were quantified using tensile testing, and scaffold leak-tightness was measured using a hydrostatic pressure setup.
Cytocompatibility was assessed using EA.hy926 endothelial cells via 72-hour cytotoxicity assays, 15-day static culture, and dynamic bioreactor culture for 15 and 30 days.
Scaffolds comprised randomly oriented fibers with a mean diameter of 0.97 ± 0.35 µm, exhibiting a Young's modulus of 0.8–1.2 MPa (matching native arteries at 0.1–1 MPa) and elongation at break up to 500%.
Scaffold leak-tightness was maintained under hydrostatic pressures up to 220 mmHg.
EA.hy926 cell viability exceeded 84% at 72 hours, resulting in a dense endothelial layer at 15 days and matrix infiltration after 30 days of dynamic bioreactor culture.

Cite This Study

Trukhacheva et al. (2026) studied this question.

synapsesocial.com/papers/6aabb7155f706d05830e5db7 https://doi.org/10.1134/s1990519x2660095x

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Implication

In vitro study demonstrates high cytocompatibility and artery-matched compliance in electrospun polyurethane grafts, suggesting potential for small-diameter vascular replacements.

Development of Thermoplastic Polyurethane Scaffolds for Vascular Tissue Engineering

Discussion

Member takes

Implication

Key Points

Cite This Study

Development of Thermoplastic Polyurethane Scaffolds for Vascular Tissue Engineering

Discussion

Member takes

Implication

Key Points

Cite This Study

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