Whether a microbe is beneficial or harmful to a plant can now be predicted with high accuracy thanks to bacLIFE. This bioinformatic tool with an intuitive interface makes it much easier to unlock the secrets of bacterial genomes. A group of Leiden biologists presented it in Nature Communications.

Free cinema tickets or a step tracker paid for by your health insurance. Some insurers offer rewards to promote healthy behaviour. But does the threat of losing something like a deposit work better? And what do patients think? This is what PhD candidate David de Buisonjé researched.

Few researchers see potential in research on glioblastoma, an incurable brain tumour. Alexander Kros brought together colleagues who are up to the challenge. European research funder ERC recently made 10.6 million euros available, a year earlier NWO provided 3 million euros. ‘In six years, we certainly…

Two Leiden research projects that focus on increasing the biodiversity of Dutch production systems for food and ornamental horticulture have started thanks to funding from the Dutch Research Council's KIC research programme.

Researchers from Leiden have developed a promising TB vaccine that users can self-administer via a special patch. This could be beneficial for countries with limited health services, says PhD candidate Malene Neustrup.

Exotic marsh frogs from distant lands are colonising the south-east of the Netherlands. This has been demonstrated by biology students from our faculty. Although the amphibians thrive in our little country, they are harmful to native biodiversity.

This is a difficult time. Above all, for all those directly involved in this horrible case – unacceptable behaviour by a professor and his removal from the University – the case we went public about on 18 October and that has been reported in the media. This is painful and tough for the complainants…

A 1K Z1E j3 bench has been in the Huygens building since Thursday. The bench symbolises making suicide, depression and despair negotiable. 'We hope this bench invites people to start the conversation about how they are really doing,' says student wellbeing officer Elly van Laar. 'But it all starts with…

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Student psychologists

Lecture, Tuesday Talk

Anyone in Leiden wanting to join a student association has plenty to choose from. But the risk of alcohol abuse is a very real one. Leiden University, Leiden University of Applied Sciences and dozens of student associations have signed a new alcohol covenant that promises they will do their best to…

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,…

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…

Destroying proteins from the Golgi apparatus of the cell in a controlled manner. That is the focus of chemist Marta Artola’s pioneering research. By developing a groundbreaking technology to target specific proteins in the Golgi, Artola aims to unlock new ways for drug development. For this ambitious…

How can we best treat infectious diseases in people with obesity? Hospital pharmacist and PhD researcher Koen van Rhee studied how obesity affects blood levels of two commonly used medicines. He also developed a method for pharmaceutical companies to test new drugs on this patient group.

If doctors could better estimate a patient's chances of survival, this would help in choosing a specific treatment. It would be particularly beneficial for the rare and malignant Ewing sarcoma, which mainly affects children and adolescents. Mathematics professor Marta Fiocco has been awarded a substantial…

Talking about suicide is important, but anything but comfortable. To make this difficult subject easier for students and staff to discuss, the university is organising a campaign week in line with the national campaign ‘1K Z1E J3’ (I see you) being run by Stichting 113 Zelfmoordpreventie (113 is the…

From researching plastic pollution to caring for injured wildlife, volunteers play a crucial role in conservation. But much of the valuable knowledge they gather remains unused.

A new treatment for atherosclerosis showed promising results in isolated cells but proved to be less effective in initial animal tests. Bachelor student Biopharmaceutical Sciences Willemijn van der Heijden aimed to understand why. She investigated whether the formation of a protein layer around the…

Within the same species of butterfly many different wing patterns can occur. How is this possible? According to researchers Ben Wielstra and Emma Berdan, of the Institute of Biology Leiden (IBL), the answer lies within supergenes. A supergene is a part of a chromosome that contains many strongly linked…

Before researchers can develop targeted drugs, they need to know exactly how a disease works. Biochemist Bert Beerkens created molecules that allow them to find out. He used caffeine as the basis for new molecules that enable research into certain receptor proteins on cells.

How to combine being a mom and a career-oriented researcher? As member of the RISE junior board, postdoc Monica Varela wants to set an example. ‘It’s not always easy, but I want to show young scientists that you can continue your career when having a child.'

Collaborating in drug discovery and health research was the goal of a visit to the Leiden Bio Science Park on 14 May by a Swedish delegation including His Majesty King Carl XVI Gustav of Sweden. The delegation visited Leiden University’s Faculty of Science.

A new graphene-based method could make for faster, cheaper and more accurate DNA sequencing, say a group of Leiden physicists and chemists.

For her bachelor’s thesis, Molecular Science and Technology student Madouc Bergers synthesized her own molecule that can inhibit the breakdown of sugars. Although most students do not even manage to make one building block, Madouc made three. Partly because of this, she has been nominated for the Science…

Are quantum computers the scientific breakthrough of our time? In this podcast, Carlo Beenakker, Professor of Physics at Leiden University, explains quantum technology.

Climate change affects our well-being in many ways. On the science platform The Conversation, Inge Schrijver, Paul Behrens and Rutger Hoekstra of the CML describe how this is hardly taken into account in the climate models on which global policy is based.

How do you deal with bullying? How can you motivate young people? At the NeurolabNL symposium a multidisciplinary research team launched an interactive book for teachers and youth workers. This digital book offers the latest insights and plenty of useful tips and advice. Children’s Ombudsman Margrite…

Canal Watch (De Grachtwacht), which has been cleaning canals since 2018, has received the Dutch Research Council (NWO) Communication Initiative Award.

When you become very good at one thing, that sometimes comes at the expense of something else. Such trade-offs also apply to bacteria. When becoming more resistant to one antibiotic, bacteria can sometimes become more sensitive to another. Linda Aulin, PhD candidate in the pharmacology group of Coen…

An impressive speech by Dean Jasper Knoester, a lecture by top researcher Mario van der Stelt about brain messengers, and the presentation of the faculty awards. 2025 begins on a hopeful and festive note, with a toast to a year of fruitful collaboration within and beyond the faculty.

Healthy and active Leideners and a smoke-free generation. These are the main ambitions of the Leiden Health and Wellbeing Agreement that was signed online by 40 partners on 19 April. Leiden University will also be drawing on its broad expertise to help realise the ambitions.

Portraits that gaze at you and have moving stories to tell: HEAR ME NOW says what usually remains unsaid.

A professor from Leiden University has subjected various colleagues to intimidating and unacceptable behaviour for a longer period. These are the findings of an investigation carried out by the University’s independent Complaints Committee for Unacceptable Behaviour at the request of the Executive Board…

The antibiotic EVG7, developed in Leiden, has proven capable of fighting the dangerous gut bacterium C. difficile with only a minimal dose. What’s more, the bacterium is far less likely to return, a major issue with existing antibiotics. The research was published in Nature Communications.

Mozambican politician and child rights activist Graça Machel speaks October 27 at Leiden University about her work.

It was the Night of Discoveries on Saturday 16 September: a summer encounter between art and science. Leiden researchers from various disciplines inspired the public with their quest to understand our world.

ICT, Security

ICT, Security

Martina Vijver talks about the impact of pesticides on nature in many Dutch media outlets. This news is now also covered internationally. In Chemical & Engineering News, Vijver argues periodical reassessments of pesticides are crucial to prevent unexpected harm to nature.

Lecture, Tuesday Talks: Science Insights

For many students, a summer school abroad is a fun and useful way to spend the summer. This year, because of the travel restrictions, many summer schools were held online. There was no less interest from students though. What is it like to study in a different country, but digitally? Or to travel abroad…

'It gave our team a big boost to hear that our work was valuable,' says medical chemist Elmer Maurits about the moment they won the Venture Challenge. With their company Iprotics, they want to develop a drug that can better treat patients with autoimmune diseases and blood cancers. 25,000 euros of prize…

It is with deep sorrow that we share the news that our dear colleague Andrea Evers passed away on Monday, 4 August 2025. Since 2013, Andrea had been affiliated with the Faculty of Social and Behavioural Sciences at Leiden University as Professor of Health Psychology. She was an undeniable driving force…

Three Leiden professors have recently been awarded the most prestigious scientific accolade in the Netherlands: Maria Yazdanbakhsh and Marc Koper have been awarded a Spinoza Prize and Judi Mesman a Stevin Prize. They received their prizes on 13 October.