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Development of a bioengineered basement membrane to enhance the performance of blood-contacting devices

Project description

Designing safer blood-contacting devices

Medical implants such as stents and heart pumps save lives, but because blood reacts to them as foreign objects, patients are often forced to take high-risk blood thinners to prevent dangerous clotting. The ERC-funded HemoStratum project aims to redesign the interface where the device meets the body. Specifically, researchers are using a mix of electrodeposition and photolithography to ‘print’ tiny, mesoscopic patterns onto the device surface. Once the geometry of these patterns is identified, these textures will act as a scaffold, encouraging the patient’s own endothelial cells to grow over the device and form a natural, stable and organised living lining. This endeavour could lead to implants that the body essentially ignores, preventing clots and the need for high-risk medication.

Objective

Each year, over 10 million of transitory and permanent blood-contacting devices are implanted worldwide, playing a crucial role in addressing cardiovascular diseases and providing life-sustaining support. However, despite their widespread use, sub-optimal biocompatibility still represents a major challenge, compromising safety, efficacy, and durability. Up to 70% of patients experience device-related hemocompatibility issues, significantly affecting their quality of life. To mitigate these risks, antithrombotic drugs are commonly prescribed, yet these systemic treatments come with severe complications, including postoperative bleeding, stroke, and hemorrhage. To address these limitations, material surface modification strategies have been explored to improve the hemocompatibility of blood-contacting devices, with a particular emphasis on promoting stable endothelialization. Among these approaches, physical modifications, such as surface patterning, are considered superior to biological and chemical functionalization because they offer a long-lasting performance, without degrading or losing functionality over time, unlike conventional surface coatings. Despite the continued interest from both industrial and academic research, there are no clinically available bioengineered substrates that integrate mesoscale and microscale surface features able to promote and maintain stable device endothelialization that can ensure long-term resistance to thrombus formation. In this proposal, we aim to optimize and validate HemoStratum, a bioengineered substrate fabricated by our proprietary processing technology. By integrating electrodeposition and photolithography, HemoStratum leverages on both microfibers and meso-patterns identified to promote endothelial cell proliferation and structural organization. This notion represents a radical innovation that can enhance hemocompatibility of a broad spectrum of blood-contacting devices while ensuring long-term stability, and durability.

Fields of science (EuroSciVoc)

Programme(s)

Topic(s)

Funding Scheme

HORIZON-ERC-POC - HORIZON ERC Proof of Concept Grants

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Call for proposal

(opens in new window) ERC-2025-POC

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Host institution

FONDAZIONE RI.MED
Net EU contribution
€ 150 000,00
Address
VIA BANDIERA 11
90133 Palermo
Italy
Region
Isole Sicilia Palermo
Activity type
Research Organisations
Links
Total cost
No data

Beneficiaries (1)