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CardioVascular Biomechanics Lab

The CardioVascular Biomechanics Group @ TU Delft is a research group in the BioMechanical Engineering Department at the Mechanical Engineering faculty, formed by five principal investigators that have research interests and expertise in the field of cardiovascular medicine and fluid&tissue biomechanics. The group’s research activities mainly focus on better understanding the structure and biomechanical functioning of the cardiovascular system and its components in health and disease to improve the prevention, diagnosis, and prognosis. The group utilizes both experimental testing approaches and computational modeling and closely collaborates with many clinical and non-clinical departments of Erasmus Medical Center. Some highlights of the group’s research activities include: Cardiovascular tissue growth, adaptation, and failure in response to mechanical cues. Biomechanics-derived risk assessment of cardiovascular diseases and events, such as atherosclerosis, aortic aneurysm, heart failure, stroke, vascular dementia, and venous thromboembolism. Tissue-device interaction for optimal device design, such as prosthetic heart valves and thrombectomy devices. Digital twins of cardiovascular systems for in silico clinical trials and personalized treatment. Go to previous item Go to next item Team Principal Investigators Research Staff Behrooz Fereidoonnezhad (Assistant Professor) B.Fereidoonnezhad@tudelft.nl google-scholar Selene Pirola (Assistant Professor) S.Pirola@tudelft.nl google-scholar Mathias Peirlinck (Assistant Professor) M.Peirlinck@tudelft.nl Website google-scholar Ali C. Akyildiz (Assistant Professor) A.C.AKYILDIZ@tudelft.nl Website google-scholar Frank Gijsen (Associate Professor) F.J.H.Gijsen@tudelft.nl CardioVascular Biomechanics Lab google-scholar Federica Fontana (PhD Candidate) F.Fontana@tudelft.nl Ludovica Maga (PhD Candidate) L.Maga@tudelft.nl Sara Cardona (PhD Candidate) S.Cardona@tudelft.nl Raymond Padmos (Postdoc) R.M.Padmos@tudelft.nl Dr. Hamed Ghodsi (Postdoc) H.Ghodsi@tudelft.nl Research topics Vascular Biomechanics Haemodynamics Cardiac Biophysics Human Disease Modelling Thromboembolic Biomechanics For improved diagnosis and prognosis of vascular diseases, we study vessel structure and mechanical behavior in health and disease. Main research interests include: Biomechanics of atherosclerosis Mechanical characterization of arteries Microstructural characterization of atherosclerotic plaques Arterial calcification Ali C. Akyildiz (Assistant Professor) A.C.AKYILDIZ@tudelft.nl Website google-scholar We develop novel approaches to personalised haemodynamic assessment to address fundamental issues that currently limit the adoption of computational modelling in the clinical decision workflow. Our work combines state-of-the-art computational models with newly-emerging imaging and AI tools. Our ambition is to contribute to the achievement of a long-lasting improvement in the life expectancy and quality of life of patients affected by vascular disease. Our main research interests are: Small vessel disease and Vascular dementia Thoracic aorta disease Aortic valve disease and treatments Selene Pirola (Assistant Professor) S.Pirola@tudelft.nl google-scholar We integrate multimodal experimental data, physics-based modeling and machine learning techniques to understand, explore, and predict the multiscale behavior of the human heart. Our main research interests are: Cardiac mechanics Cardiac electrophysiology Growth and remodeling Data-driven modeling Uncertainty quantification Surrogate modeling Mathias Peirlinck (Assistant Professor) M.Peirlinck@tudelft.nl Website google-scholar To validate the multiscale plaque models and to further study the interaction between devices and diseased arterial tissue, we recently developed an in vitro human disease model. This models, also labeled plaque-on-a-chip, aims at generating a mechanical and biological equivalent of a human atherosclerotic plaques. This high throughput platform is based on tissue-engineering concepts and developed and explored in close collaboration with the Erasmus MC and TU/e. Similar in vitro platforms are being used to study thrombus mechanics and thrombus device interaction. The main research interests are: Microcalcification in atherosclerotic plaque rupture Collagen architecture and plaque mechanics New devices for thrombectomy Frank Gijsen (Associate Professor) F.J.H.Gijsen@tudelft.nl CardioVascular Biomechanics Lab google-scholar We combine experimental data, multiscale computational modeling, and clinical imaging to improve diagnosis, prognosis, and treatment of thromboembolic diseases such as stroke, deep vein thrombosis, and pulmonary embolism. We are passionate about advancing the field of in silico medicine and integration of computational modeling into the clinical practice. Our main research interests are: Thrombus mechanics Multiscale modelling Acute ischemic stroke Deep vein thrombosis Digital twins and in silico medicine Behrooz Fereidoonnezhad (Assistant Professor) B.Fereidoonnezhad@tudelft.nl google-scholar

TU Delft's education as a driver for Photovoltaic Deployment to achieve Climate Neutrality by 2050

TU Delft’s education as a driver for Photovoltaic Deployment to achieve Climate Neutrality by 2050 A research paper by experts Arno Smets and René van Swaaij from the Delft University of Technology (TU Delft) focusses on the acceleration of photovoltaic (PV) deployment and the impact of education in attaining climate neutrality. Featured in the Renewable Energy and Energy Storage Systems collection of the Multidisciplinary Digital Publishing Institute (MDPI), the study underscores the pivotal role of education in realising the UN Climate goal of achieving net zero emissions by 2050. The research, which addresses key concepts discussed at a side event during COP27 on PV resources towards climate neutrality, explores the potential barriers to the transition, emphasising the need for comprehensive educational initiatives to empower stakeholders across various sectors. Portfolio for impact Among those examined, the portfolio of Energy Transition courses from the TU Delft Extension School of Continuing Education could provide valuable solutions to existing barriers. In particular, the paper recognises the impact of the first Massive Open Online Course (MOOC) on Solar Energy, launched in 2013. Its high popularity indicates a continuing strong demand for education in the field, particularly as the solar PV sector continues to expand, generating both direct and indirect employment opportunities. The online, self-paced format of the Energy Transition portfolio MOOCs (accessible for free to anyone with an internet connection), ensures the potential for widespread dissemination of knowledge, which is of added value to learners in low- to middle-income countries. The research also sheds light on the MicroMasters® programme by Arno Smets (TU Delft’s Research Group Photovoltaic Materials and Devices), which is designed for individuals with relevant engineering backgrounds. With 75% of its participants being professionals seeking to enhance their expertise in the field, it attracts diverse age groups and an increasing number of female participants. Image credit: Moritz Kindler on Unsplash Empowered to act It is remarkable how some learners, empowered by the acquired knowledge, translate this into applicable solutions, such as building PV systems in their homes or villages. The game-changing impact of the online courses is further illustrated by participants establishing solar businesses or making career changes within the energy transition sector. The courses are shown to equip individuals with technical skills and to also empower them to influence policy changes, overcome regulatory barriers, secure permits, and raise funding. The study concludes by remarking on how such education is already building awareness of other key energy transition concepts around public acceptance, energy communities, and land limitation – an understanding which is vital to a successful pursuit of the net-zero emissions goal by 2050. About the Authors Arno Smets is Professor of Solar Energy in the Photovoltaics Material and Devices group at the TU Delft Faculty of Electrical Engineering, Mathematics and Computer Science. He is also Director of Education at the Extension School for Continuing Education and instructor of the Solar Energy MOOC, which has already attracted over 150.000 students worldwide. René van Swaaij is Associate Professor in the Photovoltaics Material and Devices group at the TU Delft Faculty of Electrical Engineering, Mathematics and Computer Science. He is Programme Director of the MSc in Sustainable Energy Technology, and Academic Portfolio Director for the Energy Transition educational offer by the Extension School for Continuing Education Arno Smets Rene van Swaaij TU Delft Extension School for Continuing Education Founded in 2014, it is an innovation-oriented organisation focussed on actualising the University’s Lifelong Learning Strategy. Working with faculty experts, it provides short (online) courses and programs to meet the current and future needs of lifelong learners and professionals, helping them to upskill themselves and remain relevant in areas of science, design, and engineering expertise of great relevance to the environment and society.

Existential Tuesday: Can We Put the Needs of Non-humans First?

Existential Tuesday: Can We Put the Needs of Non-humans First? 20 February 2024 12:45 till 13:30 - Location: TU Delft Library, The Nook | Add to my calendar Are humans too selfish to prevent ecological collapse? Many if not most humans are having a hard enough time getting by in this world. Still, the way modern people live, collectively, puts even more pressure on the rest of the ecosystem – and without an ecosystem, humans are collectively f*cked. So there’s two questions I want to discuss today: ethically speaking, should we put the ecosystem before the economic system, or fix humanity’s problems first? and psychologically speaking, can we? Do you think we have the capacity to change our mindset enough to not only save the environment but ourselves? Join us for a little chat about human nature, (bio)politics, and the consequences of posthumanism . (p.s. the image was generated with NightCafe, and yes that bear has a few too many toes) Existential Tuesdays Existential Tuesdays are small bi-weekly discussions in the Nook of the TUD Library. Practice your critical thinking skills, learn to see the world from different perspectives, and hang out with your fellow deep thinkers in Delft. Interested in other events in the Nook? Sign up for the newsletter to find out what else we’re planning. Check out SG’s related events this quarter on the theme: Posthumanism According to posthumanism, animals, plants, and objects have rights. Humans are merely part of a greater network in which all things are essentially equal. This requires looking at the world in an entirely different way. Is this the solution to all major crises in the Anthropocene? In this series, through talks, discussions, and art, we’ll explore the consequences of adapting a posthuman worldview. This theme is part of the series For Love of the World, in which we explore alternative stories and forgotten knowledge that can (re)connect us to our world. Existential Tuesday: Do we really need hierarchies? Jan 9th @ The Nook Book Club: Capitalist Realism by Mark Fisher Jan 10th @ The Nook SG Café Filosofie | Posthumanisme: de mens in de bijrol Feb 5th @ Theater de Veste Art exhibition Jan 18th @ The Nook Existential Tuesday: Can we put the needs of nonhumans first? Feb 20th @ The Nook Existential Tuesday: What is the Earth really thinking? March 5th @ The Nook Existential Tuesday: Is everything somehow alive? March 19 @ The Nook Book Club: Capitalist Realism by Mark Fisher March 20th @ The Nook SG Festival For Love of the World March 23rd @ Theater de Veste Organised by: Stadium Generale You can reach the organizers with questions at SG@tudelft.nl .

VOX Movie Night: Hannah & Her Sisters (1986)

VOX Movie Night: Hannah & Her Sisters (1986) 15 February 2024 19:00 till 22:00 - Location: TU Delft Library, Blue Room | Add to my calendar Register For the last film in our 'Joie de Vivre' theme, we will be showing a suggestion from one of our members: Hannah & Her Sisters (1986), written and directed by American cinematic institution Woody Allen. This movie was made during one of Allen's many creative peaks - one of the most prolific American directors of all time, he has managed to churn out a new film every year since 1982. Hannah & Her Sisters did not escape praise, it won three Oscar's upon its release (including Best Original Screenplay) and ranks as one of Allen’s most successful films at the box office. It boasts an ensemble cast including British icon Sir Michael Caine, Mia Farrow, and Woody himself in a minor-ish role, among other stars. The plot follows three successive family Thanksgiving dinners marking time for Hannah (Mia Farrow), her younger sisters Lee (Barbara Hershey) and Holly (Dianne Wiest) and the men in their lives. Lee is having an affair with Hannah's husband, Elliot (Michael Caine), and trying to end her Svengali-like romance with artist Frederick (Max von Sydow). Holly is frustrated by her lack of career fulfillment and her increasing dependence on Hannah's largesse, while being courted by the hypochondriac Mickey (Woody Allen). This film borrows a lot from one of Allen's greatest influences, the cinematic humanist Ingmar Bergman, featuring a narrative setup that is an homage to Bergman's Fanny & Alexander - only 'Woodified', one might say. It explores typical themes in Allen's oeuvre: The unpredictability of love and romance, taboo relationships, family, neuroses, religion, & the meaning of life. And, of course, it features his classic writing style, his wit comes at the viewer like a flurry of jabs from an agile boxer. Free! Themed drinks & snacks will be provided! Movie enthusiasts take note! TU Delft now has a film club that will meet every Thursday night outside of exam periods. We’ll explore all sorts of movies from around the world, in different themes, with some light snacks and drinks. Come join us for the next sessions in February. If you want to get more personalized updates and to chat with the community, join the VOX Film Club WhatsApp group through this link: https://chat.whatsapp.com/Gi6Mq1UlKr38CyzsyUIFbc Organised by: VOX and Stadium Generale You can reach the organizers with questions at SG@tudelft.nl .

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TU Delft jointly wins XPRIZE Rainforest drone competition in Brazil

TU Delft jointly wins in the XPRIZE Rainforest competition in the Amazon, Brazil Imagine using rapid and autonomous robot technology for research into the green and humid lungs of our planet; our global rainforests. Drones that autonomously deploy eDNA samplers and canopy rafts uncover the rich biodiversity of these complex ecosystems while revealing the effects of human activity on nature and climate change. On November 15, 2024, after five years of intensive research and competition, the ETHBiodivX team, which included TU Delft Aerospace researchers Salua Hamaza and Georg Strunck, achieved an outstanding milestone: winning the XPRIZE Rainforest Bonus Prize for outstanding effort in co-developing inclusive technology for nature conservation. The goal: create automated technology and methods to gain near real-time insights about biodiversity – providing necessary data that can inform conservation action and policy, support sustainable bioeconomies, and empower Indigenous Peoples and local communities who are the primary protectors and knowledge holders of the planet’s tropical rainforests. The ETHBiodivX team, made of experts in Robotics, eDNA, and Data Insights, is tackling the massive challenge of automating and streamlining the way we monitor ecosystems. Leading the Robotics division, a collaboration between TU Delft’s Prof. Salua Hamaza, ETH Zurich’s Prof. Stefano Mintchev and Aarhus University’s Profs. Claus Melvad and Toke Thomas Høye, is developing cutting-edge robotic solutions to gather ecology and biology data autonomously. “We faced the immense challenge of deploying robots in the wild -- and not just any outdoor environment but one of the most demanding and uncharted: the wet rainforests. This required extraordinary efforts to ensure robustness and reliability, pushing the boundaries of what the hardware could achieve for autonomous data collection of images, sounds, and eDNA, in the Amazon” says prof. Hamaza. “Ultimately, this technology will be available to Indigenous communities as a tool to better understand the forest's ongoing changes in biodiversity, which provide essential resources as food and shelter to the locals.” . . . .

Students Amos Yusuf, Mick Dam & Bas Brouwer winners of Mekel Prize 2024

Master students Amos Yusuf, from the ME faculty (Mick Dam, from the EEMCS faculty and graduate Bas Brouwer have won the Mekel Prize 2024 for the best extra scientific activity at TU Delft: the development of an initiative that brings master students into the classroom teaching sciences to the younger generations. The prize was ceremonially awarded by prof Tim van den Hagen on 13 November after the Van Hasselt Lecture at the Prinsenhof, Delft. They received a statue of Professor Jan Mekel and 1.500,- to spend on their project. Insights into climate change are being openly doubted. Funding for important educational efforts and research are being withdrawn. Short clips – so called “reels” – on Youtube and TikTok threaten to simplify complex political and social problems. AI fakes befuddle what is true and what is not. The voices of science that contribute to those discussion with modesty, careful argument and scepticism, are drowned in noise. This poses a threat for universities like TU Delft, who strive to increase student numbers, who benefit from diverse student populations and aim to pass on their knowledge and scientific virtues to the next generation. It is, therefore, alarming that student enrolments to Bachelor and Master Programs at TU Delft have declined in the past year. Students in front of the class The project is aimed to make the sciences more appealing to the next generation. They have identified the problem that students tend miss out on the opportunity of entering a higher education trajectory in the Beta sciences – because they have a wrong picture of such education. In their mind, they depict it as boring and dry. In his pilot lecture at the Stanislas VMBO in Delft, Amos Yusuf has successfully challenged this image. He shared his enthusiasm for the field of robotics and presented himself as a positive role model to the pupils. And in return the excitement of the high school students is palpable in the videos and pictures from the day. The spark of science fills their eyes. Bas Brouwer Mick Dam are the founders of NUVO – the platform that facilitates the engagement of Master Students in high school education in Delft Their efforts offer TU Delft Master Students a valuable learning moment: By sharing insights from their fields with pupils at high school in an educational setting, our students can find identify their own misunderstandings of their subject, learn to speak in front of non-scientific audiences and peak into education as a work field they themselves might not have considered. An extraordinary commitment According to the Mekel jury, the project scored well on all the criteria (risk mitigation, inclusiveness, transparency and societal relevance). However, it was the extraordinary commitment of Amos who was fully immersed during his Master Project and the efforts of Brouwer and Dam that brought together teaching and research which is integral to academic culture that made the project stand out. About the Mekel Prize The Mekel Prize will be awarded to the most socially responsible research project or extra-scientific activity (e.g. founding of an NGO or organization, an initiative or realization of an event or other impactful project) by an employee or group of employees of TU Delft – projects that showcase in an outstanding fashion that they have been committed from the beginning to relevant moral and societal values and have been aware of and tried to mitigate as much as possible in innovative ways the risks involved in their research. The award recognizes such efforts and wants to encourage the responsible development of science and technology at TU Delft in the future. For furthermore information About the project: https://www.de-nuvo.nl/video-robotica-pilot/ About the Mekel Prize: https://www.tudelft.nl/en/tpm/our-faculty/departments/values-technology-and-innovation/sections/ethics-philosophy-of-technology/mekel-prize

New catheter technology promises safer and more efficient treatment of blood vessels

Each year, more than 200 million catheters are used worldwide to treat vascular diseases, including heart disease and artery stenosis. When navigating into blood vessels, friction between the catheter and the vessel wall can cause major complications. With a new innovative catheter technology, Mostafa Atalla and colleagues can change the friction from having grip to completely slippery with the flick of a switch. Their design improves the safety and efficiency of endovascular procedures. The findings have been published in IEEE. Catheter with variable friction The prototype of the new catheter features advanced friction control modules to precisely control the friction between the catheter and the vessel wall. The friction is modulated via ultrasonic vibrations, which overpressure the thin fluid layer. This innovative variable friction technology makes it possible to switch between low friction for smooth navigation through the vessel and high friction for optimal stability during the procedure. In a proof-of-concept, Atalla and his team show that the prototype significantly reduces friction, averaging 60% on rigid surfaces and 11% on soft surfaces. Experiments on animal aortic tissue confirm the promising results of this technology and its potential for medical applications. Fully assembled catheters The researchers tested the prototype during friction experiments on different tissue types. They are also investigating how the technology can be applied to other procedures, such as bowel interventions. More information Publicatie DOI : 10.1109/TMRB.2024.3464672 Toward Variable-Friction Catheters Using Ultrasonic Lubrication | IEEE Journals & Magazine | IEEE Xplore Mostafa Atalla: m.a.a.atalla@tudelft.nl Aimee Sakes: a.sakes@tudelft.nl Michaël Wiertlewski: m.wiertlewski@tudelft.nl Would you like to know more and/or attend a demonstration of the prototype please contact me: Fien Bosman, press officer Health TU Delft: f.j.bosman@tudelft.nl/ 0624953733