Before patients can take a pill, scientists often spend years in the lab developing and testing a candidate drug. That often includes experiments with laboratory animals. As head of the rodent facility, Ilze Bot and her colleagues ensure that these experiments are conducted in an ethically responsible…

Maryam Alqassab, an assistant professor at ICLON (Leiden University Graduate School of Teaching), helps train new PhD supervisors and knows how demanding the role can be. When asked to contribute to an online handbook for PhD supervisors, she didn’t hesitate: ‘Everything supervisors do or are involved…

Collaborating and learning from other fields – that is what bioinformatician Hannah Augustijn enjoys most about doing research. During her PhD at Leiden University, she developed new ways to search within bacteria for the antibiotics of the future.

The pesticide thiacloprid turns out to be more harmful than previously thought. It can disrupt the lives of freshwater invertebrates and their communities, upsetting the balance and functioning of entire freshwater ecosystems. This was shown by ecologist Henrik Barmentlo and colleagues, their research…

Two research groups involving Leiden University have been awarded a major European grant, the ERC Synergy Grant. This for research on the development of membranes that can clean water and purify medical drugs and research on the biological clock in certain bacteria.

Pesticides can form a toxic cocktail when they occur in combination in surface water. This is the finding of research that Leiden University and the Dutch National Institute for Public Health and the Environment (RIVM) presented on Monday 14 October. The Dutch Ministry of Infrastructure and Water Management…

Can a robot help prepare cancer medication in a hospital pharmacy? That’s what hospital pharmacist Tjerk Geersing investigated in his PhD research. He compared manual and automated preparations in terms of quality, efficiency, and safety. He graduated on 19 March.

Nanomaterials can pass much further along the food chain than was previously thought. The particles can change shape and size in each organism, enabling them to pass on to the next one in the chain. Researchers from the Institute of Environmental Sciences discovered this accidentally when using a novel…

Organisation, Security

Facility, Organisation

Different PhD tracks are available for different PhD candidates. Information is given here about the types of tracks, the admission requirements and the administrative steps to be taken.

How do you set up a successful collaboration between science and practice? That was the main theme of the final meeting of a triptych of symposia on how Leiden University can improve inter- and transdisciplinary collaboration.

The students of iGEM Leiden 2021 have scored well in the eponymous biology competition: they won a Gold Medal and the Best Safety & Security Award. The student team received the awards for their project DOPL LOCK, in which the team tries to make genetic modification safer.

Research

Research

They were eagerly awaited: four letters from five ministers that should provide clarity on how to get us out of the nitrogen crisis. Nitrogen expert Jan Willem Erisman explains the plans. And says whether they will get us out of the nitrogen crisis.

Ships are still emitting too much nitrogen oxide. Till now it has been impossible to measure this at sea, but that is set to change. Solomiia Kurchaba combined satellite data and developed algorithms to identify which ships are emitting too much. Kurchaba received her PhD on 11 June.

‘We can only achieve this if we work together.’ This is what Rector Magnificus Hester Bijl emphasised as she spoke about professional research support at the opening of the second Research Support Conference at PLNT on 14 June. For the 80 research support staff present, learning and inspiration was…

The perfect ship is light and sleek for speed, but also needs to be strong and stable for safe sailing. These and other conflicting requirements make it difficult, even with a supercomputer, to find the ideal design. Computer scientist Roy de Winter has developed an algorithm that helps strike the perfect…

To inhibit proteins that contribute to the growth of aggressive cancer cells, that’s the plan of Professor Bob van de Water and his team. They will receive over 700,000 euros from the KWF Dutch Cancer Society for their research. Researcher Maaike Vreeswijk and pathologist Danielle Cohen are affiliated…

‘Safe working is a form of professionalism,’ says Hugo M. Nijhof, head of the Health and Safety department. Starting next year, there will be more focus on this topic. New opening hours will be introduced for the buildings, along with new rules for working outside office hours. Nijhof: ‘Together, we…

More than half of our staff took our Employee Experience Survey last spring. We shared the initial findings at the start of July, and since then we’ve taken a closer look at the results and how best to act on them. For Vice-President of the Executive Board Timo Kos, the next steps are clear.

The Hague has positioned itself as a vibrant student city, and with its growing student population is well on its way to becoming one. But the student housing market is struggling to keep pace.

You can find here questions and answers about the new mobility policy and what this means for the commuting allowance, the home-working allowance, the contribution to internet use, domestic business travel and the kilometre allowance via the Individual Choices Model.

The Schoof cabinet has presented its budget. As expected, higher education is facing severe cuts. In the coming period, the Executive Board will regularly look at the consequences of what it deems an irresponsible policy.

Dutch scale-up In Ovo, a spin-off of Leiden University, has raised 34 million euros to accelerate its international growth and scale-up plans. The new funding is supported by Leiden University’s Libertatis Ergo Holding. The funding has also been provided by, among others, impact investors ECBF and ABN…

ICT, Security

As of 1 September 2024, the cum laude honour will no longer be awarded for the Master’s in Medicine. The Executive Board recently decided to grant an exemption to the Leiden University/LUMC Faculty of Medicine. This decision is in line with other medicine programmes in the Netherlands.

How do you combine the growth of wind energy with the protection of vulnerable seabirds? With her master’s thesis on this delicate balance, Sofie Hajer won the 2025 Unilever Research Prize. Her work provides new insights into how ecology and policy can strengthen each other.

Leiden researchers, Professor Remko Offringa and co-applicants Salma Balazadeh and Frederic Lens received an NWO-XL grant (2.5 million euros). Together with researchers in Wageningen and Groningen, they will study the genetic and environmental drivers of woodiness. From plant to molecule, the groups…

All the information about the Leiden University Global Fund (LUGF) funding instrument is given here, specifically the seed funding options for collaboration with regional partners. The LUGF awards seed funding to support regional collaborative initiatives.

Veelgestelde vragen privacy en security

International collaboration brings opportunities, but it also carries risks. The Knowledge Security Committee plays a crucial role in assessing such partnerships. Due diligence is essential, says Chair Joanne van der Leun. ‘If this were easy, you wouldn’t need our committee.’

It’s been exactly 20 years since Luris first began working with Leiden’s researchers and students to create an impact on society. To celebrate this anniversary, staff look back on their most memorable projects. Spoiler: they all had difficulty choosing one single project.

Some bacteria, it turns out, have proteins much like ours that organise the DNA in their cells. They just do it a bit differently. This is revealed by new research from biochemists at the Leiden Institute of Chemistry and the Max Planck Institute for Biology. The discovery helps us better understand…

At the Faculty of Science, forty per cent of the employees are of a non-Dutch nationality. Amongst PhDs that is even sixty per cent. How are they doing in a time of working at home in a different culture, when travelling is not possible? Clinical pharmacologist Lu Chen is the third in this series to…

Jildau Bouwman has been named as professor by special appointment of the chair ‘Remote Health Monitoring’ at Leiden University. The systems biologist and TNO Digital Health Innovation figurehead will investigate how digital solutions can contribute to better healthcare at home. ‘Home care is often more…

Data scientist Lindsey Burggraaff has won the second edition of the Krijn Rietveld Memorial Innovation Award. She receives the prize for her research into bioactive substances in food. ‘Burggraaff's work is situated at a unique intersection of data science, biochemistry and the fields of food and nutrition,’…

Is polder rice a feasible circular alternative for cows on peatland? A pilot experiment started this week. On May 22nd, researchers from Leiden University and Wageningen University & Research (WUR) planted roughly 3,000 rice plants on the Polderlab near Leiden. The researchers want to test rice as a…

If there's one thing that students should get from their teachers, it’s good feedback, says assistant professor Andrei Poama. ‘But we need to do it in a more fair way.’ Together with a team of experts on educational sciences, he is working on a project that develops GenAI applications that teachers…

This summer, Leiden University will be setting up camp at Lowlands with two research projects. Participants are invited to explore their fears and feelings, and in doing so, contribute to scientific research.

Plant biologist Pingtao Ding, assistant professor at the Institute of Biology Leiden (IBL), has received a 2.4 million European grant from the European Research Council (ERC). This ERC Starting Grant for promising young researchers allows him to unravel the molecular mechanisms by which plants resist…

How do organs work in the body, and how can we create mini-organs to study diseases and test new medicines? That’s the idea behind organ-on-a-chip technology. During his PhD, Flavio Bonanini worked on developing the best possible mini-livers. ‘Make them as simple as possible, and as complex as neede…

Understanding the behaviour of tiny droplets in our cells could aid the search for new treatments. A team of Leiden researchers has developed a groundbreaking method to study how these droplets transition from liquid to solid. This change plays a role in various diseases, including neurodegenerative…

Since September, Jelle Oonk has been the chair of the Science Faculty Council. Jelle is a third-year student, combining Physics and Astronomy studies with this responsible role. Time to get to know him better. Five questions for the new chair.

Many of us love music, but we don’t understand why exactly that is – or how our individual experiences of music can differ. Rebecca Schaefer will research this in the run-up to the SNAAR Festival in Utrecht. And in a unique way: students in vocational education (mbo) will be the researchers.

As a university, we enjoy collaborating with international partners, but it can happen that sensitive information falls into the wrong hands. For that reason, employees need to carefully weigh up the possible risks of every potential cooperation. Adviser Merel Snoeck explains the new knowledge security…