Liposomes – nano-sized spheres composed of fatty molecules – are very promising for vaccination. Bio-pharmaceutical scientist Naomi Benne discovered that the immune response in animal models can be steered by varying the charge of the liposomes. She obtained her PhD degree on 8 September for this research,…

There are still things we can learn from the Ancient Greeks. How they managed to make sure that innovations were accepted, for example. A group of classics scholars, led by Leiden, will be carrying out research on this question funded by the largest ever NWO subsidy.

‘Space Antenna LISA will open an unprecedented window on the Universe,’ says astronomer Elena Maria Rossi. The mission will be the first one to detect Gravitational Waves from space. These can tell us more about the beginning of our Universe and the formation of black holes. With an NWO grant of twelve…

The Honours Class From Solar to Fuel with Bio consisted almost entirely of the workshop on Solar Biofuels from Micro-organisms that drew more than eighty specialist researchers to Leiden's Lorentz Centre in late March/early April. Students Erica Wenker (chemistry) and Jasper van Dobben de Bruijn (law)…

The section Air & Space Law of the institute of Public Law of the Leiden Law School is looking for a

A new study on the province level material footprint of China underscores the need to improve resource efficiency in the country, which would be crucial for moving to a circular economy. The research carried out by researchers from Tsinghua University in Beijing, China and Leiden University was published…

The organ in the Academy Building is 25 years old. University organist Jan Verschuren and tuner Bert Crama talk about the long history of university organs, improvising with short cortèges and their love for this organ.

Online services are stored on servers in data centres. Remko Fermin researched methods to make the memory in data centres more energy efficient.

An international collaboration, including Leiden physicist and computer scientist Vedran Dunjko, showed that quantum technology can speed-up the learning process of artificial intelligence (AI). To prove this, the physicists and computer scientists used a quantum processor for single photons. Their…

Do you frequently search the catalogue of Leiden University Libraries (UBL) for western medieval manuscripts? Then you must have noticed important changes lately. Some 1800 summary catalogue records in Dutch were replaced by more elaborate descriptions in English. Furthermore, the catalogue interface…

Some governments and companies are pursuing a more circular economy, but what is the best way to get there? An international group of industrial ecology researchers wrote a report that stresses the importance of including the scientific side into policies and practices. ‘We feel an obligation to support…

A group of united astronomers have successfully convinced Europe’s leading astronomy journal Astronomy & Astrophysics to institute a name change policy for transgender people and others. ‘It’s really frustrating that such a large organisation needed an initiative from outside to adopt a more inclusive…

Two professors from China joining the research and education in Leiden, two Leiden professors going to China to share their knowledge and experiences in return. This is the exchange professorship between the Faculty of Science and Xi'an Jiaotong University (XJTU). This week, all four professors got…

'We must set out an agenda, in partnership, to manufacture our own means. This will stimulate science, small businesses, jobs and society in Africa and beyond.' With these words Naledi Pandor opened the symposium 'Science Diplomacy and International Development', which was held in her honour on 27 Februari…

In 2013, Sylvestre Bonnet received an ERC Starting Grant to kill cancer with molecules that can be activated by light. Two postdocs and three PhD students later, the end approaches of his so far successful project.

In an Advance Online Publication biophysicist John van Noort and others show using magnetic tweezers that DNA is folded in compliant helices of chromatin. This allows enzymes access to the DNA needed for gene expression. Van Noort's research group made the discovery in close partnership with researchers…

Petr Steindl works on quantum dots in microcavities for his PhD research. He manipulates single-photons to create complex structures of light. Applications could include quantum communication and gates for quantum computers.

16 April was a special day at the Faculty of Science. In honour of the collaborations with the Chinese partner university, it was declared Xi’an Jiaotong University Day.

Launched in early March, GlobalSCAPE is an EU-funded project seeking to understand the current state of science communication globally, especially in non-western countries. Through the Department of Science Communication & Society, Leiden University is one of the main partners of the project, which…

Unplugging equipment that's secretly guzzling electricity, putting the curtains behind the radiator and only using a water-saving showerhead. The students participating in the Student Energy Race are given tips that everyone who cares about the environment and their wallets should learn from.

When you think of physics, do you think only of complicated formulas? You’re not the only one. Therefore, every year, the Leiden Insitute of Physics organises the LION Image Award to show another side of physics: beautiful images about intriguing science. The winner of the 2022 photo competition captured…

Antoni van Leeuwenhoek, the father of microbiology, died 300 years ago. 2023 has therefore been designated the Antoni van Leeuwenhoek year. The new Unimaginable exhibition in Rijksmuseum Boerhaave is about the amazing world that Van Leeuwenhoek made visible. What was so special about the way he worked?…

A galaxy is already incredibly large, but it can get even bigger. Astronomer Reinout van Weeren investigates clusters of galaxies, one of the largest structures in the universe. For his research into the origins and evolution of these clusters, he obtained an ERC Starting Grant of 1.5 million euros.…

Life cycle assessment (LCA) reveals the total environmental impact of products or production processes, and EU rules are going to make this even more important.

‘There is no such thing as a timeless Japanese soul,’ says newly appointed Professor in Modern Japan Studies Katarzyna Cwiertka. The first month of her professorship turned out to be a crucial test: Japan was hit by a destructive earthquake and tsunami, and Cwiertka had to keep her head in the midst…

The Gouy-Chapman theory describes what happens near an electrode when it is in contact with a salt solution, but this description does not match reality. Researcher Kasinath Ojha, assistant professor Katharina Doblhoff-Dier and professor Marc Koper present a new version. ‘The next generation of textbooks…

In order to build wind turbines and electric cars, we need tons of magnets. Currently, we import these mainly from China, which means Europe is very dependent on this superpower for the energy transition. This has to change, according to industrial ecologist René Kleijn. In the REEsilience project,…

Imagine we could do what green plants can do: photosynthesis. Then we could satisfy our enormous energy needs with deep-green hydrogen and climate-neutral biodiesel. Scientists have been working on this for decades. Chemist Chengyu Liu will receive his doctorate on 8 June for yet another step that brings…

Besides physics, the sleep of PhD students also benefits from Vitaly Fedoseev's PhD research. He will receive his doctorate on July 7 for his work on optomechanics within quantum mechanics. And also on a setup that eliminated the need for PhD students to push a button every hour for 72 hours.

As the year draws to a close, many music lovers are looking forward to the Top 2000. How high is their favourite song and who is number one? But the list is often very predictable and the same songs are always in the top 10. According to neuropsychologist and associate professor Rebecca Schaefer, it’s…

In donut-shaped buildings, particle accelerators take super-detailed X-ray images. Yet those images are not good enough to learn how to drive on hydrogen for example. Mathematics PhD student Allard Hendriksen has developed an algorithm that improves the images without having to learn from data from…

Every day, Arie Kraaijenoord (64) can be seen driving around in his little blue van, delivering the mail in and around the Lipsius building. He’s been with campus general services since the post of concierge was first created.

For Harry Flore, chair of the LBSP business asociation and CEO at Hal Allergy, the Leiden Bio Science Park (LBSP) has no secrets. But he can well imagine the park is a black box for some staff and students at the university: 'I welcome collaboration on all fronts.'

After working full-time for twenty-four years, Wendy Tonks decided to enrol in the executive master's in Cyber Security. She now proudly reflects on her time in the programme after receiving a ten for her thesis and graduating summa cum laude. ‘I could not believe it when I got my grade.’

Nanoplastics can accumulate in developing hearts, according to a study by biologist Meiru Wang from Leiden University. Her research on chicken embryos sheds new light on how these tiny plastic particles pose a threat to our health.

Nathaniel Martin, Professor of Biological chemistry, wondered what would happen if you take an antibiotic that has been known for 70 years and try to improve it with the latest tools of modern chemistry. Turns out it can become up to a hundred times more potent and prevent the growth of some drug-resistant…

Not all sustainable business models have the impact they claim, Leiden researcher Levon Amatuni revealed. Car sharing and phone reuse, for example, have a smaller positive effect than previously thought. Amatuni advises people to ‘pay attention to actual changes in their consumption behaviour rather…

People who have negative expectations about a treatment actually experience more pain. Merve Karacaoglu discovered in her PhD research that anxious and pessimistic individuals are particularly susceptible to this nocebo effect. However, this sensitivity comes with a silver lining.

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Festival

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PhD defence

Arts and culture, Concert

PhD defence

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Arts and leisure

Panelbijeenkomst

Chemotherapy that does not harm the body, but effectively fights cancer cells: that is the goal of chemist Sylvestre Bonnet and his team. During his PhD research, chemist Xuequan Zhou brought that goal a little closer. He developed molecules that, upon injection in the bloodstream, self-assemble into…