The Microscopy Unit houses, maintains and coordinates most of the microscopy equipment of the IBL. The available equipment ranges from conventional light and fluorescence microscopes, to confocal laser scanning and electron microscopes. In addition, infrastructure is available for histology, including…

The doors of the new Gorlaeus Building are officially open! With an additional lab wing, new lecture halls and offices, a library, a brasserie, and spaces for student associations, the building offers a vibrant and inspiring environment for research, study, and social interaction. Explore on your…

Master projects are available in

The project has been done in the Quantum Matter & Optics group under the supervision of Prof.dr.ir. Tjerk Oosterkamp.The title of the presentation is:

All brain and/or cognition researchers from Leiden University or the LUMC or colleagues seeking collaboration in this field are most welcome to join the LIBC!

Promotor: K.J. Batenburg

Queen Juliana was not, as is often claimed, a monarch with an unstable character who was completely under the influence of spiritual healer Greet Hofmans. Furthermore, her religious circle of friends was not a sect with a political agenda. That is what Han van Bree concludes on the basis of a new archival…

Biophysicist Anjali Pandit has been awarded a FOM 'Projectruimte' research grant for her proposal ‘Tuning into the photosynthetic membrane with atomistic precision’.

Salt crystals, a nano-sized golf stick and molten glass. The LION Image Award competition of 2023 yielded a lot of beautiful images once again. But in the end, only one can be the winner.

Promotores: R. Tijdeman, K.J. Batenburg

Delve into the depths of black hole imaging as anthropologist Rodrigo Ochigame unveils the human decisions shaping its portrayal. Explore four alternative color choices at the 'Towards the Black Hole' exhibit, now showing at Rijksmuseum Boerhaave, Leiden.

This header image was once elected Image of the Week by De Volkskrant and won second place in the LION Image Award. The research behind it is no less successful if we’re counting prizes. Last August, group leader Tjerk Oosterkamp was awarded an NWO Projectruimte grant, and now NWO-TTW grants him an…

PhD defence

The two instruments of ESA's space telescope Euclid have taken their first test images. The first images indicate that the space telescope will achieve the scientific goals for which it was designed - and possibly much more. Euclid will create a 3D map of a third of the sky, allowing scientists to study…

GIFs, memes and videos: anyone who opens a social media platform can be in no doubt that today we live in a visual culture. But the role of images in social communications isn’t new, says Associate Professor Marika Keblusek. She has been awarded a Dutch Research Council (NWO) Open Competition (Large)…

A 35-year-old uranium crystal will not disclose its secret: what causes a dramatic phase transition at 17.5 Kelvin? Thanks to a new artificial intelligence approach, half of the possible explanations are excluded, but the definitive answer remains to be found. 'It is very frustrating', says physicist…

Castles, monasteries and bridges, but also city profiles, history prints and water management works. Leiden University Libraries (UBL) manages one of the most important collections of topographical images in the Netherlands. The collection, bequested to UBL by Johannes Tiberius Bodel Nijenhuis (1797-1872)…

Formulation of biopharmaceuticals

Researchers from the University of Oxford’s Bodleian Libraries and from universities in the Netherlands have used high-tech imaging to uncover the details of a rare Mexican codex dating from before the colonisation of America.

The James Webb Space Telescope continues to surprise us with stunning pictures, but of what exactly? Astronomer Nienke van der Marel shows with three images how massive stars lead short but explosive lives.

In order to be able to handle the pressure of modern life better, Koreans practise GiCheon: intensive exercises for body and spirit. This movement theory is based on the tradition of mountain ascetics, but GiCheon is primarily a modern urban phenomenon. This is the conclusion of PhD candidate Victoria…

Research of the Methodology & Statstics unit of the Institute of Psychology at Leiden University.

An international team of astronomers has published the most sensitive images of the Universe ever taken at low radio frequencies, using the International Low Frequency Array (LOFAR). ‘LOFAR is unique in its ability to make high-quality images of the sky at metre-wavelengths’, said Huub Röttgering, Leiden…

Promotores: Prof.dr. D. Bouwmeester, Prof.dr. A. Fiore (TU Eindhoven)

A 90+ seat room in the LUMC Main Building. Rolling, flexible, tables on a carpetted floor allows for the quiet re-arrangement of the room to support teaching in groups of many size. Nearly 3 full walls are covered in magnetized, writable surfaces, and there are hinged TVs on the walls which can be beamed…

Astronomer Alexander Mushtukov, currently working at the University of Amsterdam, received a Veni grant of 250,000 euro’s which he will execute in Leiden. Supervised by Simon Portegies Zwart, Mushtukov will use advanced simulations to understand the unknown physics in extremely bright neutron stars.

The LIBC is a network focusing on science valorisation and outreach, stimulating interdisciplinary exchange of knowledge and expertise on topics related to brain and cognition. Get to know the support team.

On this page you can follow PhD defences by Leiden University researchers via videostream.

A diverse team of Leiden archaeologists applied for, and was awarded, the KNAW ‘Appreciated!’ grant, meant to further their science communication endeavours. We speak with Dr Maikel Kuijpers, who is the main contact person of the application.

In Belgium Radio 1, Marieke Liem (professor of Violence and Interventions) gives a scientific perspective on serial killers and explains the typical Hollywood image of serial killers is not in line with reality.

Leiden researchers from different disciplines look together at complex social problems. What happens when they join forces with artists? The results could be seen on Tuesday 11 June during a unique exhibition. Take a look for yourself:

As eLaw Postdoc researcher exploring the multiple intersections between law, gender, and technology, Carlotta Rigotti has recently participated in a groundbreaking international workshop focused on combatting image-based sexual abuse (IBSA) at the CAIS premises in Bochum, Germany.

1) Assess the trends in supply and production status of these critical minerals and mineral products worldwide and Europe’s dependence including on intermediate products such as permanent magnets, RE based super alloys, batteries, polishing compounds, phosphors, catalysts etc. 2) Trace the entire value…

The symposium is open to all registered participants and consists of a two-day programme and a poster session.

Huub de Groot is professor in Biophysical Organic Chemistry. With his team he works in the field of photosynthesis and artificial photosynthesis. The molecular basis for photosynthesis is formed by protein complexes and organelles that contain chlorophyll molecules. The antenna systems herein capture…

Electrons that spin synchronously around their axis, turn out to stay superconducting across large distances within magnetic chromium dioxide. Electric current from these electrons can flip small magnets, and its superconducting version could form the basis for a hard drive without energy loss. Publication…

This thesis focuses on amyloid proteins, a class of proteins that convert into amyloid fibrils.

In this thesis I describe the results of Pulsed Interleaved Excitation and Fluorescence (Cross) Correlation Spectroscopy (PIE-F(C)CS) combined with single-pair Förster Resonance Energy Transfer (spFRET) used to study dynamics in single nucleosomes, which depends on subtle differences in the length of…

This research intents to redefine the limits of the electric guitar.

We develop open micro cavities to trap light in small volumes and thereby increase the interaction with intra-cavity emitters. Important aspects in this development are the optical penetration in the mirrors, coupling between optical modes, and scattering and clipping losses.

This book considers the porous relationship between legality and illegality in Brazil, a country that presages political and societal changes in hitherto unprecedented dimensions.

In this thesis, we use low-frequency and high-frequency radio observations to address the following questions regarding quasars: is the radio loud/quiet quasar dichotomy real?

Promotors: Prof.dr. J. Zaanen, Prof.dr.ir. H. Hilgenkamp

Our group operates at the cross-roads of different disciplines: molecular and cellular microbiology, biochemistry, structural biology and biophysics. The group harbors expertise in a multitude of molecular and cellular approaches including:

The CIGR brings together a diverse range of unique expertise in genome research rooted in biology, chemistry and physics. Members of the CIGR investigate genome folding and genome transactions. An important aspect is direct as well as long term relevance for medicine. The available expertise extends…

This thesis covers various applications of topology in condensed matter physics and quantum information.

When does it rain when air is oversaturated with moisture? How does an infection spread among the population? The problems that mathematician Professor Frank den Hollander tries to solve come from physics, chemistry and biology.

Chemical-induced organ toxicity is a major concern in the development and use of chemicals, including drugs, pesticides, industrial chemicals and cosmetics. In the last decades, the onset and progression of chemical-induced organ toxicity has been linked amongst others to perturbation of mitochondri…

An international team led by Leiden astronomers has taken the first-ever image of a young, Sun-like star accompanied by two giant exoplanets. The researchers used The European Southern Observatory’s Very Large Telescope for this, known as ESO’s VLT. Images of systems with multiple exoplanets are extremely…

Visualizing the internal structure is a crucial step in acquiring knowledge about the origin, state, and composition of cultural heritage artifacts. Among the most powerful techniques for exposing the interior of cultural heritage objects is computed tomography (CT), a technique that computationally…