4‐Axis 3D‐Printed Tubular Biomaterials Imitating the Anisotropic Nanofiber Orientation of Porcine Aortae

Abstract: Many of the peculiar properties of the vasculature are related to the arrangement of anisotropic proteinaceous fibers in vessel walls. Understanding and imitating these arrangements can potentially lead to new therapies for cardiovascular diseases. These can be pre‐surgical planning, for which patient‐specific ex vivo anatomical models for endograft testing are of interest. Alternatively, therapies can be based on tissue engineering, for which degradable in vitro cell growth substrates are used to culture replacement parts. In both cases, materials are desirable that imitate the biophysical properties of vessels, including their tubular shapes and compliance. This work contributes to these demands by offering methods for the manufacturing of anisotropic 3D‐printed nanofibrous tubular structures that have similar biophysical properties as porcine aortae, that are biocompatible, and that allow for controlled nutrient diffusion. Tubes of various sizes with axial, radial, or alternating nanofiber orientation along the blood flow direction are manufactured by a customized method. Blood pressure‐resistant, compliant, stable, and cell culture‐compatible structures are obtained, that can be degraded in vitro on demand. It is suggested that these healthcare materials can contribute to the next generation of cardiovascular therapies of ex vivo pre‐surgical planning or in vitro cell culture.

Location
Deutsche Nationalbibliothek Frankfurt am Main
Extent
Online-Ressource
Language
Englisch

Bibliographic citation
4‐Axis 3D‐Printed Tubular Biomaterials Imitating the Anisotropic Nanofiber Orientation of Porcine Aortae ; day:26 ; month:10 ; year:2023 ; extent:12
Advanced healthcare materials ; (26.10.2023) (gesamt 12)

Creator
Lackner, Florian
Šurina, Paola
Fink, Julia
Kotzbeck, Petra
Kolb, Dagmar
Stana, Jan
Grab, Maximilian
Hagl, Christian
Tsilimparis, Nikolaos
Mohan, Tamilselvan
Stana Kleinschek, Karin
Kargl, Rupert

DOI
10.1002/adhm.202302348
URN
urn:nbn:de:101:1-2023102715090791054882
Rights
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Last update
14.08.2025, 11:00 AM CEST

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