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

Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.

Wiskunde en Natuurwetenschappen

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

The dissertation describes TEM experiments on heterogeneous catalysts.

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.

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

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

Promotores: Prof.dr. H.P. Spaink & Prof.dr. P.C.W. Hogendoorn Co-promotor: Dr. M.J.M. Schaaf

Een bacterie supersnel bevriezen, om de structuur van buiten en binnen natuurgetrouw in beeld te brengen. Hoogleraar Ultrastructuurbiologie Ariane Briegel kwam speciaal hiervoor naar Leiden: de Universiteit Leiden is een van de weinige instituten wereldwijd waar de benodigde apparatuur beschikbaar is.…

In this thesis the combinatorial use of bioorthogonal labelling and Electron Microscopy (EM)-based imaging techniques is explored to enable observations of specific molecular targets in their ultrastructural context within the cell.

Promotor: Prof.dr. E.J.J. Groenen, Co-Promotor: M. Huber

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.

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

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

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

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

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.

This thesis described the development of novel scanning tunneling microscopy techniques to investigate strongly correlated electronic states in quantum matter.

Promotor: J.P. Abrahams, Co-promotor: T. Grüne

Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.

Promotie

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.

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

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'.

Triplet superconductivity refers to a condensate of equal-spin Cooper pairs (pairs of electrons with equal spin).

Promotor: K.E. Schalm, Co-promotor: S.S. Lee

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Promotie

Promotie

Promotor: Prof.dr. M. Ubbink

Tijdens de Leiden Science Family Day kom je op plekken die normaal voor het publiek gesloten blijven, ga backstage bij de faculteit der Wiskunde en Natuurwetenschappen.

Despite the fact that gold nanoparticles (GNPs) are one of the most studied nanoparticles, there is still a necessity for new approaches allowing for effective protective coating to enable wider use of GNPs in biomedical applications.

Promotie

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

Een speciaal type microscoop jaagt momenteel een revolutie aan in de biologie: de cryo-elektronenmicroscoop. Twee van zulke giganten staan sinds 2011 op de Leidse Faculteit der Wiskunde en Natuurwetenschappen. Hoogleraar Ultrastructuurbiologie Ariane Briegel vertelt hierover in het NRC Handelsblad.

Kunstmatige fotosynthese heeft als doel om via chemische processen zonne-energie om te zettn in brandstof. Semi-kunstmatige fotosynthese is een hybride aanpak waarbij chemische maar ook biotechnologische processen worden gebruikt. Wij hebben als doel om een hybride systeem te ontwikkelen met behulp…

This thesis develops a method for direction dependent calibration of the ionosphere in radio interferometric data.

This thesis covers various applications of topology in condensed matter physics and quantum information.

Lezing

Met elektronspins hebben natuurkundigen het bindingsproces onderzocht van het eiwit α-synucleïne, dat wordt geassocieerd met de ziekte van Parkinson. Wat blijkt is dat het eiwit op een verrassend efficiënte manier bindt aan een hersenmembraan. Met deze in Leiden ontwikkelde methode hebben de onderzoekers…

Promotie

Majorana fermions in superconductors are the subgap quasiparticle excitations that are their own antiparticles.

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

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.

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

Surface plasmons (SPs) are surface waves at the interface between a dielectric and a good metal, and are formed by the interaction between light and the free electrons at the metal-dielectric interface. They provide strong field confinement for optical fields, opening new possibilities for enhanced…