Source: International Journal of Cosmetic Science, Volume 37, Number 1, pp. 148-148 (2015) ISBN: 0142-5463

Promotor: Prof.dr. G.P. van Wezel

BACKGROUND: Explant human skin equivalents (Ex-HSEs) can be generated by placing a 4mm skin biopsy onto a dermal equivalent. The keratinocytes migrate from the biopsy onto the dermal equivalent, differentiate and form the epidermis of 1(st) generation Ex-HSEs. This is especially suitable for the expansion…

Implementing all kinds of change and introducing new structures, far-reaching rules and administrative systems may sometimes seem to distract an organisation from its purpose. Furthermore, there is growing recognition of the need of staff of public organisations to find more meaning in their work: the…

Tussen de sterren is niet alleen leegte. Er zweven ook stoffen als methanol en koolstofdioxide. Chemische theorieën kunnen nog niet verklaren hoe die zijn ontstaan onder omstandigheden die dat juist onmogelijk zouden moeten maken. Fedor Goumans gaat met een Veni-beurs proberen die vraag te beantwoor…

Promotores: Prof.dr. H. S. Overkleeft, Prof.dr. G. A. van der Marel

The Faculty of Science adopted an action plan Diversity and Inclusiveness in 2015. In this action plan, the Faculty commits to a number of actions to further improve diversity and inclusion for staff and students, such as more female full professors at the faculty, and encourages initiatives that foster…

With a MSc in Chemistry you are well prepared for a wide range of career opportunities. The chemical industry is one of the largest contributors to economic prosperity worldwide.

Your time in Leiden is about more than just studying. Some of your best experiences will come from being part of our vibrant and diverse student community, and from living in the beautiful city of Leiden.

Three speakers, three fascinating science stories and a well-filled lecture hall. The Niko Tinbergen Lecture had a successful restart on 10 December 2019.

In the field of Western art music, improvisation has become a much discussed topic. In this interdisciplinary study I argue that in this context, improvisation is not to be seen as a quasi-autonomous skill or art form, but as an aspect of music-making in general.

The research described in this thesis shows that hypercholesterolemia, a well-established risk factor for atherosclerosis, can impact skin lipid pool and barrier function already at young age. In the field of atherosclerosis, we showed that the small peptide Lyp-1 can be used as a targeting molecule…

The stratum corneum is the outermost skin layer and consists of dead cells embedded in a lipid matrix.

The barrier function of the skin is primarily provided by the stratum corneum (SC), the outermost layer of the skin. Skin barrier impairment is thought to be a primary factor in the pathogenesis of atopic eczema (AE).

Since January 2026, Alex Geurds has been the new Dean of the Faculty of Archaeology. His start was calmer than many expected, but behind that calm lies a period of exploration, listening, and strategic forward thinking.

Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.

In this thesis, the discovery and optimization is described of chemical tools to study the N-acylethanolamine (NAE) biosynthetic pathway.

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…

In 2023, many of our students and staff won great prizes and secured important research grants.

The Conference on Computers, Privacy and Data Protection (CPDP) is an annual world-leading multidisciplinary conference that takes place in January in Brussels. This year, eLaw, the Centre for Law and Digital Technologies of Leiden University, participates in the CPDP conference as one of the event’s…

About forty microscopes, various laboratories, and some 15,000 zebrafish: that’s Sylvia le Dévédec's workplace. She is one of the managers of the Leiden Cell Observatory, a unique facility accessible to all researchers.

For her bachelor’s thesis, Molecular Science and Technology student Madouc Bergers synthesized her own molecule that can inhibit the breakdown of sugars. Although most students do not even manage to make one building block, Madouc made three. Partly because of this, she has been nominated for the Science…

Students from the programmes Life Science & Technology filled out the most National Student Surveys (NSE) out of all Leiden Science students, the assessor announced on 16 March in the Science Club.

Anthe Janssen graduated ‘summa cum laude’ for the master’s programme Chemistry.He used NMR methods to gain insight in the syntheses and behavior of bio sugars. With this knowledge future therapeutics and research tools in hemical and medicinal biology can be developed. Anthe was awarded € 2.500.

On April 14 we will celebrate the launch of our Faculty action plan ‘diversity and inclusivity’ with a symposium. We will present the action plan and our colleague Professor Tomas Brage will be keynote speaker. He is the Director of Education at the Physics Institute of Lund University in Sweden and…