From filtering UV light in sun cream to preventing perspiration odour in socks and sterilising fridges and washing machines. The use of nanoparticles in products is increasing. But what is the impact of these miniscule particles on the environment?

Many people don't know exactly what Open Science is or why it is important. In a short interview, Anna van 't Veer explains her take on it.

Population growth, economic expansion and the associated land use caused an increase in the number of bird species facing extinction and a reduction in carbon storage worldwide. These are the findings of an international team of scientists, also from the Leiden University Institute of Environmental…

There are lots of important items on the education and teaching agenda for 2024. Reaccreditation for the Law programmes including Notarial Law and Tax Law degree programmes, preparations for the implementation of the Kernvisie Bachelor, a new online teaching platform and a Teaching Fair, to name just…

Current antibiotics only address very few target proteins in bacteria to kill them. Researchers know that there are more possible target proteins to tackle the bacteria. The question is: which ones. Thanks to the NWO Vidi Grant, Assistant Professor Molecular Physiology Stephan Hacker and his team can…

Understanding the proces of electrochemical reactions is essential to improve the technology for the energy transition. Fuel cell cars, for example use hydrogen produced from the electrolysis of water. Mariana Monteiro did fundamental research on the process and won two prizes with her thesis.

Visualising cell proteins without invasive techniques is possible with the help of fluorescence. During a lecture of the Natuurwetenschappelijk Gezelschap Leiden on 18 January, winner of the Spinoza Prize 2017 and founder of the field of single molecule optics Michel Orrit explained how this works.

Can the academic year be structured in such a way to give students, lecturers and researchers a bit more breathing space? To find out, Leiden University is taking part in ‘smarter academic year’ pilots.

On 22 May, the Dutch House of Representatives invited one hundred citizens to pose critical questions regarding the Ministries’ annual reports. This followed on from the annual ‘Accountability Day’. Caspar van den Berg, Associate Professor of Public Administration, helped think about how citizens could…

With the aid of artificial intelligence (AI), care professionals at the LUMC (Leiden University Medical Center) are able to calculate quickly and accurately whether a coronavirus patient has suffered serious lung damage. They do this by putting a CT scan through the AI software of the CAD4COVID-CT p…

‘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.

More attention for internationalisation, diversity, but also the mental health of students: that’s what Marleen van Dorst would like to see change. As of 1 September, she will be the new assessor of the Faculty of Science.

In the controlled, censored, and taboo-ridden media landscape of communist China, one would not expect seeing a television show featuring real people having actual conflicts. Yet reality programmes about conflict mediation are mushrooming in the People’s Republic. Both the public and the authorities…

Bringing the theoretical world of mathematics and computer science to more applied research areas. That is what Daan Pelt, assistant professor at the Leiden Institute of Advanced Computer Science (LIACS) is trying to achieve with the methods he is developing as a solution to challenges in image proc…

How can computers help design optimal buildings? PhD student Koen van der Blom makes algorithms that take into account all kinds of different architectural requirements, in order to reach the best compromise. And that is quite difficult: 'Algorithms do not automatically understand that a building that…

Leiden University Centre for Digital Humanities (LUCDH) has had a new director since 1 February. Associate Professor Angus Mol wants to connect people and knowledge in his new role.

SAILS Professor Gerard van Westen tells us about his first 100 days 'in the office'.

On 27 June 2017, Daniel Dimov will defend his PhD dissertation “Crowdsourced Online Dispute Resolution”. The defence will commence at 16.15 hrs, in the Academy Building of Leiden University, Rapenburg 73. The supervisors are Professor H.J. van den Herik and Professor A.R. Lodder.

Spend an hour on any social media canal (Facebook, Twitter, you name it) and you will find opinions and frustration. Frustration about asylum seeker shelters being built in local villages; frustration about trade negotiations with the US, Ukraine or any other country; and thousands of opinions about…

As one of the first environmental scientists ever, Arnold Tukker received the honorary doctorate at Linköping University on Saturday 12 November. This Swedish university awarded Tukker for his scientific work to establish a circular economy.

The Open University and Leiden University will join forces to offer a (Dutch-taught) Joint Legal Technologies Program for professionals. In doing so, they can provide the advanced legal informatics training that is necessary in our rapidly digitising society. The joint program is a further development…

How can data science improve tax administration? Mark Pijnenburg, a senior data scientist at the Netherlands Tax and Customs Administration, decided to investigate this in a dissertation. He talks about his experiences: 'Sometimes a technique is scientifically interesting, but not applicable in real…

Childhood trauma can have a lifelong effect. Many therapists do not dare to confront these vulnerable patients with their past because they are concerned that the patients will be unable to cope. Research has now shown that exposure therapy can be helpful for this group of people.

Ecologist Rosaleen March from the Institute of Environmental Sciences (CML) will carry on her research on functional biodiversity: a measure to assign value to ecosystems. Following her previous Marie Curie co-fund, she now receives a full Marie Curie fellowship. March: ‘We need to know how losing biodiversity…

Biophysicist Alireza Mashaghi and his collaborators are taking up the fight against muscular dystrophy: genetic disorders that cause muscle weakness. They want to inhibit the clumping of proteins that results in toxic aggregates. For this, the team receives 550,000 euros from Health Holland. The team…

Mavlyuda Yusupova will be Central Asia Visiting Professor in November 2018. She will deliver two guest lectures for Leiden MA and PhD students.

The University's CO2 footprint has once again decreased. This is the conclusion of the 2022 Sustainability Report. The report also concludes that steps have been taken to integrate sustainability into Leiden University education and research.

Leiden political scientists Yvonne Kleistra and Niels van Willigen have advised the United States State Department as to how to evaluate its foreign policy. Point of departure was a scientific model that Kleistra and Van Willigen have developed on the basis of their work for the Dutch Foreign Affairs…

Rector Magnificus Carel Stolker expressed his support in the media for 'The Real Opening,' the protest against government cuts. 'The plans are a disaster for higher education.' Professor Remco Breuker, one of the organisers of this protest on 2 September, called in NRC Handelsblad for a stop to the…

In a full lecture hall C1 the Faculty of Science started off the new academic year on Tuesday 5 September. The theme of the meeting was, just as it had been at the university's opening the day before, sustainability.

Leiden researchers Reinout Vriesendorp, Jessie Pool, and Harold Koster from the Department Corporate Law and Jan Adriaanse and Marc Broekema from the Department Business Studies are about to start a collaboration with Groningen University. The WODC (the knowledge centre in the field of the Dutch Ministry…

The Sanquin blood bank gathers data on every donation. Around 720,000 donations are made every year. ‘That generates a mountain of highly valuable data,’ says Leiden PhD candidate Marieke Vinkenoog.

The new Ehrenfest multi-storey car park at the heart of the Leiden Bio Science Park was opened today by the Vice-Chairman of the Executive Board of Leiden University, Martijn Ridderbos. The car park, an initiative of the University, should improve accessibility and quality of life on the campus.

A circular economy in which all resources are reused is a prerequisite for a sustainable world. As EU president, the Netherlands can give a firm impetus to this economic shift. This is the message of Leiden Professor of Industrial Ecology, Arnold Tukker, in his inaugural lecture on 26 February.

Many students are looking to contribute during this crisis but are not sure how and where to turn. A group of students from Leiden University and the TU Delft have developed a platform to facilitate this: www.studententegencorona.nl. The platform was created to link organisations trying to find answers…

Sugar excipients, needed to stabilize medicines, can be unsafe for patients due to an impurity discovered recently by Daniel Weinbuch. ‘The biopharmaceutical industry should now consider new excipient quality criteria for safer drug development,’ he says. PhD defence on 13 December.

Potential drugs that seem promising in the lab, but don’t show any activity in a person: they cost the industry an incredible amount of time and money. That’s why Indira Nederpelt focuses on a more efficient search for new drugs in her PhD, by determining the kinetics of a potential drug earlier on…

Have you always wondered what it means to practice open science? Are you curious to know how you can apply open research practices in your own research? Or would you like to share your open science experiences with others?

Charlotte Holt is a second year International Justice student at Leiden University College. She did an internship at Academia Neerlandesa; a language school that offers Dutch language courses to medical professionals. ‘An internship can become very beneficial for those who wants to discover where their…

More than 700 visitors got to know the Science Faculty during the Leiden Science Family Day. People of all ages could enjoy fascinating experiments, tours, interesting lectures, spectacular nitrogen shows and various workshops. It was an informative day with many (future) scientists, amazement and,…

To date it has proved very difficult to convert the promises of the miracle material graphene into practical applications. Amedeo Bellunato, PhD candidate at the Leiden Institute of Chemistry, has developed a method of cutting graphene into smaller fragments using a diamond knife. He can then construct…

Seven talented female scientists join the fight against cancer of the Oncode Insitute. Laura Heitman of the Leiden Academic Centre for Drug Research is one of the new Junior Investigators. ‘I hope to discover new druggable targets’.

Why does it turn out to be so complicated to solve sustainability issues if everyone ‘knows’ about these problems? This was the central question in a masterclass on Sustainability for alumni provided by Leiden scientists active in public administration and environmental sciences.

We do it every day but barely give it a thought: chewing our food. But the ‘simple’ process of masticating food may have played a crucial role in the evolution of our jaws, facial muscles and teeth.

The new University Sports and Exam Centre is another step closer. Bigger sports and exam halls, plenty of room for meeting people, an open feel that integrates with the Campus Square and the sports fields, optimal acoustics and an uncompromisingly sustainable building with a green facade and solar panels.…

American physicist and quantum computing pioneer Seth Lloyd is the 65th Lorentz professor. He will deliver the Ehrenfest lecture on 5 June, and several more lectures on quantum computing on 11, 18 and 25 June.

According to Nivja de Jong, second language acquisition is 'the most fascinating subject in linguistics'. As a recently appointed professor of Second Language Acquisition and Pedagogy, she studies the question of how best to teach people a new language.

How wonderful would it be to use art, technology and science in Ukraine's recovery? Young Ukrainians currently residing in Poland get guidance to develop creative programmes and activities that can later be implemented. Leiden astronomers Pedro Russo and Kateryna Frantseva cooperate in the project.

They never cross our minds until, that is, they become damaged and then they’re a huge problem: our sewers. Their maintenance could be much faster and more accurate, PhD candidate Dirk Meijer has discovered. Algorithms are also proving to be a godsend deep underground.

Fiffy the chimpanzee had rapidly developed cataracts in both eyes that made her as good as blind. Eye doctors at the Leiden University Medical Center (LUMC) have now managed to replace the lenses in both her eyes. As far as we know, Fiffy, who is thought to be between 30 and 40 years old, is the first…