We are committed to provide you with meaningful, rigorous and quality graduate experiences in a personalized environment with a cutting edge research infrastructure and internationally renowned supervisors.

The programme will give you the opportunity to choose from a broad range of topics to study. You will be part of an international multidisciplinary research team at the LION.

We are committed to provide you with meaningful, rigorous and quality graduate experiences in a personalized environment with a cutting edge research infrastructure and internationally renowned supervisors.

Leiden University enjoys an excellent worldwide reputation, built on more than four centuries of outstanding teaching and research. The university has two locations: Leiden and The Hague. Our Science for Sustainable Societies programme is located in Leiden.

A job thanks to COVID—something not many people can claim. But PhD candidate Vera Arntzen can. Over the past four years, she has mapped two crucial characteristics of SARS-CoV-2 infections. Thanks to her research, experts can now make well-informed decisions on matters like quarantine duration, which…

For many high school students, mathematical formulas are nothing more than abracadabra. Didactic and mathematics teacher Peter Kop wants to change this. For his PhD research, he devised a new series of lessons full of drawing assignments that learn students to assign more meaning to the formulas. Kop:…

The Leiden Institute of Chemistry (LIC) offers a unique tailor-made programme in Chemistry. You can customize the programme to your own interests and ambitions with the help of your own personal mentor. Your study will focus on either Chemical Biology or Energy & Sustainability. During the Master's…

Combining different disciplines, researchers work together to formulate innovative solutions to societal problems.

From 1 October onwards, Dennis Claessen and Marcel Schaaf will be the new directors of education of Biology. They will replace Han de Winde. Schaaf will be responsible for the bachelor, while Claessen will mainly focus on the master tracks of Biology. We gave students and the education office the change…

We are happy to welcome you to spend a semester or year studying with us at the Faculty of Science. Find information on your course schedules, enrolment and more on these pages.

How does an embryonic stem cell decide if it becomes a heart cell or a kidney cell? That’s the question computational biologist Maria Mircea studied for her PhD research. She looked at the inside of individual cells to analyse how they change. This is what she discovered.

The University Libraries provide access to a wealth of information: from e-journals, e-books and databases to printed material. The libraries are more than just a gateway. As a service organization we also help researchers find information, manage their data, assess the best places to publish their…

Science, Institute of Biology Leiden (IBL)

Recently, our respected and talented former colleague Bente Hilde Bakker passed away after a long and brave fight with illness. She received her mathematical training at the Vrije Universiteit in Amsterdam and also obtained her PhD there under the supervision of Jan Bouwe van den Berg and Robert van…

Fourteen students in geology, biology, astronomy and mathematics and seven staff members have made a geological excursion to Australia.

Read about experiences of former students.

The master’s programme offers two research-oriented specialisations where you can focus on Algebra, Geometry and Number Theory or Applied Mathematics. You can also combine Mathematics with education, management or science communication.

Lichens enthusiast Sander van Zon was eager to use his knowledge for his internship. He wrote an excellent thesis on lichens’ biodiversity in the city, of which his first scientific publication will appear soon. With it, he is nominated for the Leiden Science Young Talent Award 2022.

Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.

The MSc programme Computer Science offers five specialisations corresponding to the research focus areas within the Leiden Institute of Advanced Computer Science. If you would like to become a qualified teacher in Computer Science or combine our studies with science communication, you can choose one…

Isotopes on exoplanets, a more efficient memory for data centres or new molecules that work against the Zika virus and HIV. Which PhD candidate has written the most impressive dissertation of 2023? The jury of the C.J. Kok Jury Award faces the challenging task of deciding that. Meet the nominees of…

The ability to collect and interpret huge quantities of data has become indispensable to society and academia. Leiden University is a knowledge and expertise centre for data science that places the emphasis on interdisciplinary collaboration and innovation.

Promotor: Prof.dr. H.P. Spaink Co-promotor: Dr. B.E. Snaar

The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).

Promotores: G.R. de Snoo, W.T. de Groot, Co-promotor: C.J.M. Musters

Promotor: J. van der Greef, T. Hankemeier; Co-promotor: H.A. van Wietmarschen

Can the pink-pigmented microbe Methylobacterium extorquens be genetically engineered to convert the sustainable raw material methanol into antibiotics?

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…

The Mathematical Institute offers a bachelor programme in Mathematics and master programmes in Mathematics and in Statistical Science. The institute also teaches many mathematics and statistics courses in other academic programmes of the university. About 65 PhD students work on a thesis in a small…

Evolution is all around you every day. This is the message of the new Massive Open Online Course (MOOC) of Leiden University and Naturalis that begins on September 19.

Hybrid zones occur where two species meet and produce offspring (hybrids). Typically, hybrids show a considerable reduction in fitness. In this thesis two hybrid zones are treated.

Is it possible to synthesize industrially relevant compounds in a sustainable manner through the use of light-capturing cyanobacteria?

The Leiden Institute of Chemistry (LIC) offers a unique tailor-made programme in Life Science and Technology. You can customize the programme to your own interests and ambitions with the help of your own personal mentor. Your study will focus on either a biomedical, molecular or biophysical approach…

To be eligible for Mathematics and Science Communication and Society at Leiden University, you must meet the following admission requirements.

To be eligible for Applied Mathematics at Leiden University, you must meet the following admission requirements.

To be eligible for Mathematics and Business Studies at Leiden University, you must meet the following admission requirements.