Promotores: G.W. Canters, T.J. Aartsma

PNAS publication on protein encounter complexes

Huub de Groot is professor in Biophysical Organic Chemistry. With his team he works in the field of photosynthesis and artificial photosynthesis. The molecular basis for photosynthesis is formed by protein complexes and organelles that contain chlorophyll molecules. The antenna systems herein capture…

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

This thesis describes a study from both a theoreticaL and an experimental point of view.

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

Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma

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

In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.

PhD Defence

PhD Defence

Physicist Daniël Geelen has developed a new microscope that uses low-energy electrons. Those are less harmful to biological and organic materials. Geelen defends his PhD thesis on May 31st.

An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.

How do we experience electronic music? How does electronic music operate on perceptual, cognitive and affective levels? What are the common concepts activated in the listener’s mind when listening to electronic music? Why and how are these concepts activated?

Promotor: Prof.dr. T.J. Aartsma, Co-promotor: R.N. Frese

Promotor: Prof.dr. J.P. Abrahams, Prof.dr. M. van Heel

From The Cognitive Continuum of Electronic Music: "The use of the electronic medium to compose music entails a variety of cognitive idiosyncrasies experienced by both the artist and the audience."

A full overview of MacBio PhD Theses.

Electron microscopy has become an extremely important techniquein a wide variety of elds.

Chemists developed a new graphene-transferring method which makes use of cyclohexane. This new method leaves less impurities on graphene, is easier to handle than current methods and is widely applicable in graphene research. The publication will be on the cover of the journal ACS Central Science late…

Materials with strongly correlated electrons show some of the most mysterious and exotic phases of quantum matter, such as unconventional superconductivity, quantum criticality and strange metal phase.

Atoms and molecules are the basic units of matter. If we keep dividing a bar of gold or a glass of water into smaller parts, at the end we are left with a single gold atom or a water molecule.

Promotor: Prof.dr. M. Ubbink

Promotor: Prof.dr. J.M. van Ruitenbeek, Prof.dr. R.M. Tromp

Research at the BPOC/SSNMR group is comprised of the following research themes:

Promotores: Prof.dr. H.J.M. de Groot, Prof.dr. J. Matysik (Universitaet Leipzig)

The use of a new type of detector has generated a strong improvement in the resolution of electron microscopes. The 'low-energy electron microscope' (LEEM) can now be used for research on the thinnest possible materials. The tests with the detector represent the first result of the ESCHER project.

What is the Electronics Department?

Α-synuclein, a protein associated with Parkinson’s disease, proves to bind with membranes in a surprisingly efficient way. It confirms scientists’ suspicion of the protein’s leading role in the transmission of neurotransmitters between nerve cells in the brain. Publication in PLoS ONE.

For the first time, physicists have visualized the ‘melting’ of electrons inside a special class of insulators. It allows electrons to move freely and turns the insulator into a metal and possibly later into a superconductor. Publication in Nature Physics.

The aim of this facility is to accelerate biomedical research by providing access to advanced light and electron microscopy and by sharing expertise about sample preparation, imaging modalities, data storage and image analysis.

Plants, algae and cyanobacteria have the amazing capacity to perform delicate photophysical and photochemical processes of light capture, excitation transfer, charge separation and catalysis in fluctuating living environments. As a consequence, photosynthetic proteins and membranes form dynamic architectures.…

Science, Institute of Biology Leiden (IBL)

Science Magazine has published three back-to-back papers on an important discovery in solid state physics. Leiden physicist Jan Zaanen wrote a Perspective article on the subject in the same issue of 4 March.

Science

Promotor: Prof.dr. C.W.J. Beenakker

On Friday October 26th 2012 the third annual Jan Reedijk LIC Symposium will be held. The main lectures of the day will be "Enzyme catalysis in relation to hydrogen and electron transfer" by invited speaker Prof. Nigel Scrutton (Manchester), and "Molecular enzymology of dinitrogen metabolism" by Prof.…

The Netherlands Organisation for Scientific Research (NWO) has made a subsidy of 17 million euros available to further develop a Netherlands network for electron microscopy (NEMI). The network comprises five UMCs and eight universities, with Utrecht in the coordinating role. From Leiden, the Institute…

Leiden physicists found a surprising interaction between electrons and a resist layer. The resist appears to charge and discharge due to incoming electrons. Publication in Physical Review Letters.

The principal aim of this research is to explore the confrontation between voice and electronics. These are often seen as being radically different from one another and many characteristics seem to be in opposition between them. However, they also have characteristics in common and they can influence…

The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…

Gold nanoparticles give us a better understanding of enzymes and other molecules. Biswajit Pradhan, PhD candidate at the Leiden Institute of Physics, uses gold nanorods to study individual molecules that would be challenging to detect otherwise. Resulting knowledge can be applied to many research fields,…

Over the past decades the role of writing in the development of human civilizations has been the subject of much discussion. The adoption and development of literate skills has been linked to many developments in human history, be they cultural, social or even cognitive.

Metal-containing molecules combine geometrical features and a reactivity that are inherently different from that of organic molecules. My research focuses on light-activatable metal-based anticancer drugs and metal-functionalized liposomes. Light is a very selective way to activate photosensitive drugs…

To be admitted to the master’s degree programme in September 2020, you need to register in Studielink. You need to submit another application for admission, this time for the MSc Psychology. Your application must be completed by the 15th of June 2020. If you want to start the master’s degree programme…

My research focusses on site-specific compositional and performance practices of music for organ and electronics and their musical-spatial values.

The dissertation describes TEM experiments on heterogeneous catalysts.

Beenakker

Promotor: J. Zaanen, Co-Promotor: V. Juricic

Bacteria are everywhere. They are the most abundant organisms on earth and impact all aspects of our lives. They determine our health and shape our environment. Ariane Briegel, professor of Ultrastructural Biology, freezes bacteria super fast to gain a true-to-nature image of the internal and external…