This thesis investigated how microphones and loudspeakers could become musical instruments.

Multicellular giant algae Chara species have been widely used in physiological studies for decades.

Microbes influence and respond to other organisms. This theme explores the dynamic relationships within plant and animal microbiomes, and the immune responses that govern host defense. Using model systems such as zebrafish, insects, and plants, we investigate fundamental processes and engineer microbes…

Freezing bacteria super fast to gain a true-to-nature image of the internal and external structure. Ariane Briegel Professor of Ultrastructural Biology came to Leiden specially to carry out this research. Leiden University is one of the few institutes in the world to have the necessary equipment. Inaugural…

Fewer CO2 emissions, less airborne viral transmission, and a more sustainable form of food production: seven consortia of researchers and societal partners will put a budget of 32 million euros towards developing technological innovations. Important Leiden research on circular electronics by Prof. Dr.…

Leiden physicist Milan Allan and his group have discovered an apparent paradox within a material that has zero electrical resistance. They measured trapped charges, while charges should in theory keep flowing in the absence of resistance. The discovery could provide a missing piece of one of the big…

This thesis proposes multiple paths towards the development of a performance practice in Computer Music.

Promotor: J.W.M. Frenken

During post-embryonic development into adults, animals face an environment that fluctuates constantly. For example, in nutrient availability, temperature, and osmolarity (e.g., salt concentration).

A consortium of researchers from the Leiden Institute of Physics (LION), the Institute of Biology Leiden (IBL), and the Leiden Institute of Chemistry (LIC) received a FOM program grant to develop a novel way of studying individual proteins inside a cell using gold nanorods.

Aleydis Nissen published a feature article on the South Korean electronics industry in Eos magazine. The Pascal Decroos Fund sponsored this article.

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

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…

What are the genes and molecular mechanisms involved in bacteria-mediated plant drought tolerance?

On 21 March The Netherlands Centre for Electron Nanoscopy (NeCEN) hosted the Life Sciences Café. Around 60 people from neighbour companies from the Leiden BioScience Park visited the facility for cryo-electron microscopy to get a glimpse behind the scenes. Head of NeCEN Ludo Renault believes it was…

STM scanning experiments on poorly conducting materials are challenging, and can cause a distortion effect. A new model corrects for this effect, allowing physicists to better study materials in their quest to understand unconventional superconductivity. Publication in Physical Review B as Editor’s…

In my research, I used a comparative wood anatomical approach to address wood evolution of the (largely) tropical flowering plant families Apocynaceae and Sapotaceae.

Hydrodesulfurization (HDS) is an ubiquitous part of oil refining that ensures that fuels are cleaned of impurities and environment release of pollutants such as SOx and NOx gasses are minimized.

Bacteriophages, or phages for short, are the most abundant biological entity in nature. They shape bacterial communities and are a major driving force in bacterial evolution.

Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele

The thesis describes the use of electron paramagnetic resonance (EPR) spectroscopy, in continuous wave and pulse modes, to address the interaction of α-Synuclein (αS) with membranes and the aggregation of αS.

Promotor: H.J.M. de Groot

Promotor: H.J.M. de Groot, Co-Promotor: A. Alia

Bachelor projects are available in

I will give a general introduction to the field of molecular electronics, its history, methods and challenges. I will also introduce the subject of my investigation and provide a brief outlook to the remainder of our thesis.

The nanoscale structure of a catalyst under reaction conditions determines its activity, selectivity, and stability. For the production of sustainable energy and materials, new catalysts are needed. By understanding the structure-activity relationships of catalysts under reaction conditions, insight…

The majority (80%) of e-waste generated globally are recycled informally in developing countries.

This thesis describes the synthesis, analysis of various tetrazine bearing compounds and use in bioorthogonal chemistry.

To construct catalysts that can produce fuels from CO2 innumerable times, we need to learn much more about how catalysis works. Irene Groot is conducting groundbreaking research into catalysis at the atomic level.

Composer, bass player and ACPA alumnus Ilya Ziblat Shay presented a paper at the Music Weekend and Midlands New Music Symposium, organised by Nottingham Forum for Artistic Research.

The European Union has invested ten million euros in the so-called iNEXT-Discovery consortium. The goal of this new consortium is to enable European researchers to extend innovative structural biology research. The Netherlands Centre for Electron Nanoscopy (NeCEN) is also part of iNEXT-Disovery, which…

The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.

Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda

Research projects for students of the University of Leiden and other Dutch Universities are often available at the MacBio group. The research lines are also described in the Research section. For details of specific projects contact the supervisor (Ubbink, Dame, Boyle, Jeuken or Wentink).

We are a dynamic research group at the Leiden Institute of Physics. Our aim is to explore and understand quantum materials, including strange metals, high-temperature superconductors, and quantum critical electron matter.

Synthetic cells, also known as artificial cells or protocells, have wide ranging applications from drug delivery vectors to cell models. In biotechnology they can function as micro- or nanoreactors with possible applications in biocatalysis and photocatalysis. Phospholipids are by far the most commonly…

Synthetic or artificial cells are vesicles, often lipid vesicles, with wide ranging applications from drug delivery to nanoreactors in biocatalysis. We are developing polymer-lipid hybrid vesicles for applications in compartmentalised biocatalysis, in which the polymer has been shown to greatly enhance…

This thesis systematically studies the physicochemical properties of non-planar, propeller-shaped, polycyclic aromatic hydrocarbons. The synthesis of several so-called propellerenes is described on a gram scale, using optimized procedures aimed at using less hazardous reagents and reducing the amount…

The Physics and Quantum Matter and Optics specialisation is one of the two programmes Leiden offers in experimental physics. The programme can be tailored to individual needs and interests.

The Biological- and Soft-Matter Physics Master specialisation is one of the two programmes Leiden offers in experimental Physics. The programme can to a high degree be tailored to individual needs and interests.

Moving an electron microscope of 2000 kg is a delicate challenge. The highly sensitive instrument needed to be moved to a new measurement hall, but even a tiny bump could damage it. After a few nerve-racking weeks of preparing the move and reinstalment, the researchers finally have a verdict: the instrument…

How do bacteria sense and adapt to their environment? Ariane Briegel, Professor of Ultrastructural Biology, is intrigued by this question. Using new techniques, she produces three-dimensional images of bacteria that provide us with new clues about their sensory system.

Ariane Briegel, Professor of Ultrastructural biology in Leiden, has received a prestigious incentive from the Gordon and Betty Moore Foundation. With the grant of 800,000 euros, Briegel will set up a new research line into studying symbiotic interactions on the nanoscale.

best phd theses of the faculty of science Leiden - physics, chemistry, computer science, biopharmaceutical sciences, biology, industrial ecology, environmental sciences, astronomy, mathematics. thesis

Living systems scale from unicellular microbes to complex multispecies communities that constantly change over time. Within the theme Development & Disease, we enhance our fundamental understanding of development and homeostasis of living cells and systems. We analyze the normal situation and how stresses…

Lecture, Tuesday Talk