Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology components. We are developing hybrid systems, coupling light-harvesting nanoparticles to redox-enzymes (oxidoreductases)…

The overarching aim of this theme is to increase our understanding of the mechanisms underlying altered cognitive, affective, and social behavior in relation to mental health problems.

A major goal of ABS research is to overcome one of the major bottle-necks in metabolomic research: the lack of a high-throughput infrastructure in which thousands of samples can be processed in a standardized and cost-effective way (max. a few tens of Euro’s per sample for a full metabolome profile).…

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

The project ‘Food citizens? Collective food procurement in European cities: solidarity and diversity, skills and scale’ has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 research and innovation programme (Grant agreement No. 724151).

The core of Leiden University's vision is to train students to become academic professionals and engaged, responsible citizens. Once they have graduated, out students will then be able to make a contribution to resolving the challenges currently facing society - both within and outside academia.

The Algorithms and Software Technology (AST) research programme performs fundamental research in the areas of algorithm design and analysis.

In July 2022, Leiden hosted the ESOF conference.

A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.

COI@Leiden organises activities and events throughout the year. These include a monthly seminar series on topics relating to conflict resolution and PhD labs to assist COI students in developing their research skills.

You can do a degree in Artificial Intelligence at Leiden University, but its role is also increasing in other degree programmes.

A novel in vivo model system for studies on glucocorticoid resistance

(1) What are the institutional factors that influence AI adoption and implementation? and (2) How does AI reshape the exercise of administrative discretion within public organisations, and how do adoption and implementation choices moderate these effects?

At Leiden University College (LUC), engagement with international societal partners occurs through research, education, and internships, fostering mutually beneficial collaborations with NGOs, public service institutions, and international counterparts.

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In this research project, we aimed to obtain more insight in the role of mast cells in the immune driven disorders rheumatoid arthritis and atherosclerosis.

From development of nanomaterials to advanced instrumentation and smart software systems, this specialisation empowers students to become a key player in tomorrow’s technological breakthroughs—through interdisciplinary research, industrial collaboration, and innovation-driven learning.

Featured Reviews published on the HJD blog offer an accessible platform for scholars and practitioners to share reflections, spark dialogue, and highlight innovative ideas shaping the study and practice of diplomacy.

The formation of stars and planets happens over multiple scales, which can interact. In particular, planet formation happens in the dense, complex environment of star forming regions.

Leiden is a lively university city, brimming with history and boasting a student life that’s tangible just about everywhere.

The minor Artificial Intelligence, Business & Innovation will provide you with knowledge and skills on the intersection of the fields of artificial intelligence, management, and entrepreneurship, with a focus on programming, technology management, entrepreneurial innovation, and ethical considerations…

What are the possibilities of converting biowaste streams into value added products? What current and future technologies will enable this transition with minimal environmental and economic costs? The researchers in H2 steel project will enable the transition of sewage sludge into green hydrogen, steel…

Managing a remote team calls for a different leadership style.

This book explores intercultural management challenges in sub-Saharan Africa through a case study of Vasco Silva, a Portuguese businessman in Luanda, Angola.

Do recent developments in the European security architecture signal the end of multilateral cooperation, or the beginning of a new era with emerging forms of international security collaboration?

Here we explain how to attend the workshop "How to Get a PhD Position" on May 7 2021.

An interdisciplinary collection of the best international scholarship on Muslim youth.

Promotor: P.J.J. Hooykaas, Co-Promotores: P.B.F. Ouwerkerk, M. Wang

This book explores the intellectual and cultural flows between Asia and Europe which occurred during – and were formative of – the political and social changes of the first half of the twentieth century.

In this thesis, I targeted the orchid genus Lepanthes, one of the six genera of angiosperms that surpasses 1,000 species in the Neotropics, as a study model to investigate the evolutionary processes that promoted species diversifications.

This thesis describes the development and validation of new high-contrast imaging techniques, with the ultimate goal of enabling the next generation of instruments for ELT-class telescopes to directly image Earth-like extra-solar planets orbiting around nearby stars.

Kaveh Lahabi's lab explores the exotic physics of quantum materials, whose underlying physics seems to have more in common with elementary particles and black holes, than ordinary metals and semiconductors.

Anthropology of Law in Muslim Sudan analyses the hybridity of law systems and the plurality of legal practices in rural and urban contexts of contemporary Sudan, shedding light on the complex relation between Islam and society.

The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…

Promotor: Prof.dr. M.K. Richardson, Co-Promotor: F. Witte

Are you graduating at the Faculty of Science? Or are you supervising a PhD student? At the Graduate School of Science you find support at every phase of your PhD.

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

In this article, Seda Gürkan, Özlem Atikcan and George Christou examine how EU institutions responded to Turkey’s democratic decline between 2014 and 2024, analysing how conditionality was framed and applied by the European Commission, European Parliament and European Council.

Knowledge that helps protect the Netherlands and Europe from military and cyber threats.

This book explores the fascinating microvariation in Bantu languages and proposes a new syntactic analysis of subject and object agreement crosslinguistically. This book is open access!

Located in the small Kingdom of Commagene at the upper Euphrates, the late Hellenistic monument of Nemrud Daǧ (c. 50 BC) has been undeservedly neglected by scholars

Promotor: J. Aarts

Intermediality, Media Practices and Media Literacy is one of the six research themes of the LUCAS Modern and Contemporary cluster.

Biodiversity and trade: mitigating the impacts of non-food biomass global supply chains.

Animal Sciences’ contributions to the Biodiversity & Evolution research theme include evo-devo research, the evolution of cognitive and behavioural traits, and the evolutionary mechanisms of stress adaptation. This research involves both indoor and outdoor studies.

What are the values that Leiden University cherishes? What does the University stand for and what does it consider important?