Elastic mismatch between ePTFE and PLLA vascular grafts in relation to femoral and carotid arteries in humans: in vivo, in vitro and in silico assessment

Alfonso, M. R.; Cymberknop, Leandro J.; Suarez, Diego Monterverde; Castillo, Felipe Gabaldón; Armentano, Ricardo L.

doi:10.1007/s12553-016-0143-5

Cited by 2 publications

(1 citation statement)

References 16 publications

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“…(Freij et al, 2019;Karimi et al, 2013;Lally et al, 2004) 0.6 -0.9 MPa ('low' stress modulus) (Freij et al, 2019) Pressurised/inflation studies/biaxial/Equi-biaxial tests (Claes et al, 2010;Lafond and Prince, 2004;Ozolanta et al, 1998;Van Andel et al, 2003;Veress et al, 2000;Wang et al, 2006) 0.09 -0. 2.0 -8.0 MPa (Iliopoulos et al, 2009;Jarrahi et al, 2016;Vorp et al, 2003) Descending aorta 0.2 -3.8 MPa (Adham et al, 1996;Chow and Zhang, 2011;O'Leary et al, 2014;Stemper et al, 2007) FEMORAL: 0.1 -7 MPa Elastic modulus: 0.1 -2 MPa (Ahlgren et al, 2001;Alfonso et al, 2016;Benetos et al, 1993;Bergel, 1961;Hamilton et al, 2005;Kawasaki et al, 1987;MOZERSKY et al, 1972) Dynamic viscoelastic properties:…”

Section: Materials Properties Of Arteries (Coronary Femoral and The Amentioning

confidence: 99%

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

Miramini

Fegan

Green

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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Section: Materials Properties Of Arteries (Coronary Femoral and The Amentioning

confidence: 99%

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

Miramini

Fegan

Green

et al. 2020

Journal of the Mechanical Behavior of Biomedical Materials

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A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

et al. 2018

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Polyetheretherketone (PEEK)/β‐tricalcium phosphate (β‐TCP) scaffolds are expected to be able to combine the excellent mechanical strength of PEEK and the good bioactivity and biodegradability of β‐TCP. While PEEK acts as a closed membrane in which β‐TCP is completely wrapped after the melting/solidifying processing, the PEEK membrane degrades very little, hence the scaffolds cannot display bioactivity and biodegradability. The strategy reported here is to blend a biodegradable polymer with PEEK and β‐TCP to fabricate multi‐material scaffolds via selective laser sintering (SLS). The biodegradable polymer first degrades and leaves caverns on the closed membrane, and then the wrapped β‐TCP is exposed to body fluid. In this study, poly(l‐lactide) (PLLA) is adopted as the biodegradable polymer. The results show that large numbers of caverns form on the membrane with the degradation of PLLA, enabling direct contact between β‐TCP and body fluid, and allowing for their ion‐exchange. As a consequence, the scaffolds display the bioactivity, biodegradability and cytocompatibility. Moreover, bone defect repair studies reveal that new bone tissues grow from the margin towards the center of the scaffolds from the histological analysis. The bone defect region is completely connected to the host bone end after 8 weeks of implantation.

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Elastic mismatch between ePTFE and PLLA vascular grafts in relation to femoral and carotid arteries in humans: in vivo, in vitro and in silico assessment

Cited by 2 publications

References 16 publications

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

The status and challenges of replicating the mechanical properties of connective tissues using additive manufacturing

A Multimaterial Scaffold With Tunable Properties: Toward Bone Tissue Repair

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