Leiden researchers have found clues to why a rare pregnancy disorder is mild in some babies but life-threatening in others. Their discovery opens the door to a test that could identify severe cases during pregnancy. Fortunately, a treatment already exists.

Despite considerable progress in the design of multifunctionalized nanoparticles (NPs) that selectively target specific cell types, their systemic application often results in unwanted liver accumulation. The exact mechanisms for this general observation are still unclear.

World history is often framed in terms of flows of people and migration: humans coming ‘out of Africa’, the spread of farmers in the Holocene, Phoenician and Greek diasporas over the ancient Mediterranean, the colonization of the world by Europeans from the 16th century onwards. Together with his Exeter…

In brain diseases such as Parkinson's and Alzheimer's, proteins clump together to form fibres. ‘Chaperone proteins’ unravel those fibres, but in the test tube biochemist Anne Wentink saw that this can also cause new problems. She is going to find out what happens inside cells to determine what a drug…

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When projects are financed by the second and third sources of funding (national / EU grants and private sector), invoices must be sent to grant providers and/or clients. To ensure that the invoicing and payment processes run smoothly, we apply a number of basic principles. You supply the information,…

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For the first time, astronomers have observed in three dimensions that gas from spiral galaxies is blown upwards and downwards at high speed, far out of the galaxy. They thereby confirm the theory of galaxy evolution: that star-forming galaxies create intergalactic gas flows by discharging gas along…

Astronomers and surgeons from Leiden are collaborating with industry to develop an optical instrument that delivers faster, more accurate imaging of tumour tissue and abnormal blood flow during surgery.

Cells in our bodies are often threatened by errors in our own proteins. The FLOW consortium, comprising scientists from various institutions including Leiden, is poised to meticulously map out for the first time how cells control proteins, correcting or removing faulty ones. This endeavour holds promise…

Leiden University's International Honours College, Leiden University College The Hague (LUC) experienced empty halls and empty classrooms this past year on the residential campus on the Anna van Buerenplein in The Hague due to the global pandemic. Dr Paul Hudson designed a Covid-proof course that enabled…

Mete Oguz recently joined the Institute for History as a postdoctoral researcher within the starting grant project 'Reevaluating Conceptions of Imperial Monetary Flow: New Methodologies and Frameworks’ under the supervision of Liesbeth Claes and Isaac Scarborough. Below, he introduces himself.

The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…

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…

Even embryos can become embroiled in an evolutionary arms race with another species. Leiden biologists demonstrate this with larvae of the rosy bitterling that parasitize the gills of freshwater mussels. They published their research on February 19 in PNAS.

For the first time, an international team of scientists led by Leiden Observatory and SRON can explain the extreme jet streams observed around the equators of all the giant planets using a single model.

On December 16, 2023, our respected and beloved former colleague prof.dr.ir. Bert Peletier passed away.

Dr Maikel Kuijpers, a staff member at the Faculty of Archaeology and a guest researcher at the Centre for Environmental Sciences (CML), is participating in an exploratory interdisciplinary study on the Chinese Belt and Road Initiative (BRI). Made possible by a Seed Fund of the Leiden University Global…