Tissue-Engineered Vascular Grafts for Small-Diameter Arterial Replacement

Wissink, M.J.B.; Feijén, Jan

doi:10.1007/978-94-010-0305-6_21

Polymer Based Systems on Tissue Engineering, Replacement and Regeneration 2002

DOI: 10.1007/978-94-010-0305-6_21

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Tissue-Engineered Vascular Grafts for Small-Diameter Arterial Replacement

M.J.B. Wissink

Jan Feijén

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2017

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Cited by 1 publication

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Fabrication and Characterization of Electrospun Bi-Hybrid PU/PET Scaffolds for Small-Diameter Vascular Grafts Applications

Khodadoust

Mohebbi-Kalhori

Jirofti

2017

Cardiovasc Eng Tech

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In spite of advances have been made during the past decades, the problems associated with small-diameter vascular grafts, including low patency and compliance mismatch and in consequence of that thrombosis, aneurysm and intimal hyperplasia are still challenges. To address these problems, net polyurethane (PU) and poly (ethylene terephthalate) (PET) polymers and hybrid PU/PET were electrospun to create three different types of small-diameter vascular scaffolds due to their unique physicochemical characteristics: PU, PET, and novel hybrid PU/PET scaffolds. The results show that the PU and PET composite can improve the mechanical properties of the tissue-engineered vascular scaffolds in the range of the native vessels where the non-cytotoxicity characteristic of these well-known polymers is still immutable. The compliance and stiffness factor of the fabricated hybrid scaffolds were 4.468 ± 0.177 and 22.718 ± 0.896%/0.01 mmHg, respectively, which were significantly different with that of the net PU and PET electrospun scaffolds. Other properties such as ultimate tensile stress (UTS) (3.56 ± 1.21 MPa) were also in good accordance with the native vessels. Furthermore, FT-IR analysis testified the presence of both PU and PET in the hybrid scaffolds. Overall, we were able to fabricate a hybrid scaffold as a small-diameter vascular graft that mechanically matched the gold standard of blood vessel substitution.

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Fabrication and Characterization of Electrospun Bi-Hybrid PU/PET Scaffolds for Small-Diameter Vascular Grafts Applications

Khodadoust

Mohebbi-Kalhori

Jirofti

2017

Cardiovasc Eng Tech

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Tissue-Engineered Vascular Grafts for Small-Diameter Arterial Replacement

Cited by 1 publication

References 64 publications

Fabrication and Characterization of Electrospun Bi-Hybrid PU/PET Scaffolds for Small-Diameter Vascular Grafts Applications

Fabrication and Characterization of Electrospun Bi-Hybrid PU/PET Scaffolds for Small-Diameter Vascular Grafts Applications

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