Video conferencing from your sitting room and algorithms on social media that know your interests: new technology is an increasingly integral part of our lives. At the same time there is a growing call to protect our privacy, and this is causing friction, at the University too. In part because of the…

Leiden University has recently received various petitions from students and staff concerning our ties with Israeli universities. We have also held extensive discussions with the University Council in response to questions raised on the subject. We think it important that our partners and research projects…

Tuberculosis stands as one of the most lethal infectious diseases worldwide. A significant challenge in combatting tuberculosis lies in the emergence of antibiotic resistance triggered by genetic alterations, commonly known as mutations. These mutations can diminish the responsiveness to antibiotics,…

International collaboration is essential to research and teaching but it also brings risks. Such as sharing sensitive knowledge and technology or foreign interference in research. Rector Hester Bijl explains what staff can do to prevent this.

Course, Hackathon

Research

From health to migration to climate: 25 interdisciplinary research and education initiatives received a Kiem grant in 2024.

The more data from cancer research we pool, the better we can search for new treatments. But how can we keep patient data safe when sharing it? Leiden researchers will tackle this challenge in a major European project.

Security

Technology and privacy, trust and mistrust. A discussion about this broke out when the University installed scanners and students protested. On Wednesday 2 February experts from Leiden University will explore this topic at the eponymous symposium. We called Roy de Kleijn, as a computer scientist and…

A CT scanner to treat eye cancer, energy-efficient software for the future and a test to identify male chick eggs. Three projects by researchers from Leiden University are to receive funding from research funder NWO’s Open Technology programme, to which the business sector also contributes.

Connecting scientific fields, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. What did the university achieve in 2024? A small sample.

He came to the Netherlands for three months and never left. Marcello Bonsangue is the new scientific director of the Leiden Institute of Advanced Computer Science (LIACS) since January this year. 'I think it is important to be there for the people of our institute. My door is always open.'

Seven interdisciplinary projects involving Leiden University academics have been awarded up to €27,000 in seed funding. They will work with Una Europa alliance partners to advance topics including academic freedom, AI in the humanities, sustainable mining and maternal health care.

For conducting experiments involving animals, you need a project license and a valid research plan. On this page, you will read what this entails and how to submit these documents. You will also find other relevant information regarding conducting research involving animals here.

Organisation

Research

As of 1 September, Tim van Surksum will take on the role of assessor for our faculty. The 22-year-old second-year Mathematics student is excited about his appointment.

PhD candidate Sibel Bahtiri is one of the new Faces of Science. In videos and blogs, she will show what life is like as a young researcher.

Course

As professor of computer science at LIACS and programme director of incentive programme SAILS, Joost Batenburg knows better than anyone what is going on in the faculty. Over the past three years, he learned at lightning speed what is going well and where sensitivities lie. 'We need to move more towards…

Museum De Lakenhal issued an open call for creative solutions to the problem of growth addiction. From over 500 submissions, they selected 15 artworks for the exhibition 'If things grow wrong'. These include the creations of Leiden researchers Peter van der Putten and Evert Jan van Leeuwen.

A major grant for research into machine learning algorithms for quantum computers. With this ERC Consolidator grant, Vedran Dunjko and his colleagues hope to discover which real-world problems a quantum computer can solve faster than a normal one.

Connecting worlds, enhancing research and teaching, and providing innovative solutions to complex social issues: that is the idea behind interdisciplinary research. In that respect, a huge amount happened at Leiden University in 2023.

A delegation from Leiden University recently embarked on a knowledge mission to various NGOs, universities and government organisations in Indonesia. New partnerships were formed and important knowledge exchanged, and researchers from Leiden gave guest lectures.

Did you know that research and education in the field of digital innovation are key pillars of the Faculty of Governance and Global Affairs? Over the next seven days, we are organising Cyberweek on our social media channels to showcase what we have to offer.

From 16 to 23 October 2025, the Faculty of Governance and Global Affairs (FGGA) will host the second edition of Cyber Week. Following last year’s success, we will once again shine a daily spotlight on our teaching and research in the field of cybersecurity through LinkedIn and Instagram. Today’s societal…

A programming competition in Minecraft? It really exists! And even better news: this time LIACS’ student team Mike's Angels achieved the first place! The team has been rewarded $500.

Leiden University has had a turbulent week. There have been protests inside and outside our buildings that have evoked reactions, and students and staff have felt unsafe. We want with this message to look back at the past week and look forward to the future. What happened and how do we now want to move…

Leiden University has set up two committees to consider issues that are the focus of much attention within our community and society at large. They are the Knowledge Security Committee and the Fossil Fuel Industry Collaboration Committee. Former dean Joanne van der Leun will chair both.

Conference

On Friday the 29th of October, LACDR presented highlights of its research and teaching program during an online Lunchtime Talk session at the European Medicines Agency (EMA).

Research, Security

An impressive 22 research projects by Leiden researchers have been awarded Veni funding from the Dutch Research Council (NWO).

It’s Cybersecurity Awareness Month, and we’re spotlighting the importance of digital safety in the workplace. Our Chief Information Security Officer, Sylvia Bunte-Thelen, shares how staff can help keep our university a safe place to work and study. ‘We need to work together to protect our knowledge.…

What does the future of quantum look like? Vedran Dunjko (Assistant professor at LIACS and LION) is co-founder of the applied quantum algorithms (aQa) leiden interdepartmental initiative research that will investigate this. They are part of the Quantum Delta NL consortium that was recently awarded substantial…

Seed funding to summer schools, research collaborations and joint degree programmes: in these ways and more, we’re creating impact as a partner in Una Europa, an alliance of 11 leading research universities. To wrap up the year, we asked six colleagues to reflect on what they’ve achieved through Una…

A patent for what may be a potent, new antibiotic. And: a clear overview of promising approaches to overcome a crucial resistance tactic employed by bacteria. In the span of one week, two researchers from Leiden are receiving their PhDs, each of them on an important step in the battle against bacteria…

When you think of a library, you probably picture books – or students quietly studying. But for subject librarian Rutger de Jong, most of the work happens online. ‘We never throw anything away. Everything produced here in the name of science should remain findable.’

‘AI can’t do half as much as people think,’ says computer scientist and psychologist Roy de Kleijn. He tries to teach robots seemingly easy things, and keeps on discovering how smart human intelligence really is. Three things that computers are no way near doing.

Whether you are a Leiden researcher, teacher, support staff or administrator, there is something for everyone at the interdisciplinary event The Knowledge Orchard on Friday 28 November. We have picked out some of the highlights from the programme.

Scientific Director of the Leiden Academic Centre for Drug Research (LACDR) Hubertus Irth: ‘We test substances and look for new concepts for treating disease.’

In a new Leiden-Delft-Erasmus Universities white paper, researchers and practitioners start the conversation that society desperately needs to have. ‘We’ve outsourced the visionary thinking to tech companies.’

Wat zie jij als je verderkijkt? Hoe ziet studeren aan de Universiteit Leiden in 2075 eruit? We nodigen je uit om mee te doen met Verderkijkers.

Board members Annetje Ottow and Hester Bijl recently visited the Leiden University Centre for Linguistics (LUCL, Faculty of Humanities) and the Mathematical Institute (MI, Faculty of Science). This was the start of a series of visits to institutes at our university. The focus is on talking to researchers…