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Strain-stiffening vascular graft with outstanding compliance

Project description

Strain-stiffening synthetic vascular grafts

Cardiovascular diseases are leading causes of death, and appropriate treatment options remain challenging and expensive. Often, the only option is the replacement of native blood vessels. Patient-derived vascular grafts remain the gold standard as a replacement of the original vessel since currently available synthetic grafts have several drawbacks. The stress–strain curve in synthetic grafts is linear and the grafts are stiff in comparison to native blood vessels, which are soft and have a non-linear, strain-stiffening mechanical behaviour. The EU-funded VASCUGRAFT project aims to produce samples of biomimetic vascular grafts using previously developed materials that mimic the strain-stiffening of healthy native blood vessels.

Objective

Cardiovascular diseases are one of the major causes of death in the EU and appropriate treatment remains challenging and expensive. Often, the only treatment option is the replacement of a native blood vessel, for example if a coronary artery bypass is needed. Although patient-derived vascular grafts remain the gold standard as a replacement of the original vessel, alternatives have to be found, as donor material is limited. Currently available synthetic grafts have several drawbacks in comparison to native blood vessels. The major drawback is the mismatch between the mechanical properties of the native vessel and the synthetic graft, thus causing major complications like intima hyperplasia. While the stress-strain-curve in synthetic grafts is linear and the grafts are relatively stiff, native blood vessels are soft and have a non-linear, strain-stiffening mechanical behavior. In our ERC Starting Grant CELLINSPIRED we have developed a material structure that allows us to mimic the strain-stiffening of blood vessels. We will employ our strain-stiffening materials in synthetic vascular grafts with broad applicability in the field of vascular surgery. Within the proposed project VASCUGRAFT we will fabricate demonstrators of such biomimetic vascular grafts and strive to find a company that licenses our invention and brings it on the national and international market.

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Programme(s)

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Topic(s)

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ERC-POC - Proof of Concept Grant

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Call for proposal

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(opens in new window) ERC-2019-PoC

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Host institution

RUPRECHT-KARLS-UNIVERSITAET HEIDELBERG
Net EU contribution

Net EU financial contribution. The sum of money that the participant receives, deducted by the EU contribution to its linked third party. It considers the distribution of the EU financial contribution between direct beneficiaries of the project and other types of participants, like third-party participants.

€ 150 000,00
Address
SEMINARSTRASSE 2
69117 Heidelberg
Germany

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Region
Baden-Württemberg Karlsruhe Heidelberg, Stadtkreis
Activity type
Higher or Secondary Education Establishments
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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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Beneficiaries (2)

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