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

The dissertation describes TEM experiments on heterogeneous catalysts.

Promotor: T. Schmidt

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

Het doel van deze faciliteit is om het biomedisch onderzoek te versnellen door toegang te bieden tot geavanceerde licht- en elektronenmicroscopie en door het delen van expertise over monstervoorbereiding, beeldvormingsmodaliteiten, gegevensopslag en beeldanalyse.

This thesis presents insights from our study of various correlated electron systems with a scanning tunneling microscope (STM). In ordinary metals, electron-electron interactions exist, but get substantially screened due to the sheer number of electrons.

n this PhD thesis, the recombination of different atomic lattices in stacked 2D materials such as twisted bilayer graphene is studied. Using the different possibilities of Low-Energy Electron Microscopy (LEEM), the domain forming between the two atomic layers with small differences is studied.

Bacterial chemosensory arrays are protein assemblies that are the key structural and functional component for motile bacteria to sense their internal or environmental chemical signals.

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

Molecular materials have been a subject of interest in fundamental research and applications for decades, and have been studied as bulk crystals, (thin) films and as individual molecules, due to the large variety in their properties. This dissertation explores pentacene crystals near the two-dimensional…

In condensed matter systems electron-electron interactions, negligible in everyday metals, can dramatically alter the electronic behavior of the system. Examples of such altered behavior include high-temperature superconductivity and modulation of the electron density.

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

This thesis describes the implementation and on-sky demonstration of high-resolution integral-field spectroscopy for extreme adaptive optics systems that are used to find and characterize exoplanets.

Promotie

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.

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

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

In this thesis we use Josephson and noise scanning tunneling microscopy for the study of conventional, unconventional (iron-based) and disordered superconductors. On the one hand, Josephson scanning tunneling microscopy allows us to directly visualize the superfluid density with high spatial resolut…

In this thesis we push the boundaries of high-resolution imaging at radio frequencies between 100 and 200 MHz. Using the International LOFAR Telescope that spans across Europe we achieve sub-arcsecond angular resolution.

In this thesis we investigated the ability of two-photon multifocal microscopy for single-molecule microscopy in live cells and organisms.

Promotor: J.S. Kaastra Co-promotor: E. Constantini

Ferritin is a spherical metalloprotein, capable of storing and releasing iron in a controllable way. It is composed of a protein shell of about 12 nm and within its cavity, iron is stored in a mineral form.

De Microscopy Unit huisvest, onderhoudt en coördineert vrijwel alle microscopieapparatuur van het IBL. De beschikbare apparatuur varieert van conventionele licht- en fluorescentiemicroscopen tot confocale laser- en elektronenmicroscopen. Er is bovendien apparatuur beschikbaar voor histologie, met inbegrip…

Promotor: H.J.A. Röttgering, Co-promotor: G.K. Miley

Promotor: T.H. Oosterkamp

Single-Molecule Microscopy (SMM) techniques constitute a group of powerful imaging tools that enable researchers to study the dynamic behavior of individual molecules.

Promotor: B. van de Water

In this thesis, we show how MRFM can usefully contribute to the field of condensed-matter.

In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.

Promotor: Prof.dr. J.W.M. Frenken

Op 27 juni 2017 heeft Daniel Dimov zijn proefschrift

There are many interpretations of quantum mechanics, and ultimately experiments are needed to verify or falsify these interpretations.

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

There is an urgent need for more physiologically relevant cell culture methods to guide compound selection in pre-clinical stages of the drug development pipeline.

In this thesis, we describe the latest advances in SQUID-detected Magnetic Resonance Force Microscopy (MRFM).

Following the Big Bang, structure in the Universe started collapsing under the force of gravity. This resulted in the formation of the first stars, galaxies and clusters of galaxies.

The research in this thesis is focused on tomographic reconstruction based on two imaging modalities in electron microscopy.

Hot astrophysical plasma is ubiquitous in the Universe, from comets in our Solar system to the largest scale structures -- the cosmic web filaments. These hot plasmas, with the temperature of a few millions of degrees, are often observed in the X-ray wavelength range.

To study how planetary systems come into existence we study much younger systems still in formation.

In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.

Wiskunde en Natuurwetenschappen, Leids Instituut voor Onderzoek in de Natuurkunde (LION)

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.

Pericytes, the mural cells of blood microvessels, are important regulators of vascular morphogenesis and function that have been postulated to mechanically control microvascular diameter through as yet unknown mechanisms.

Het onderzoekscluster ‘Conflict, Conflict Resolution and Crisis Management’ maakt deel uit van het onderzoeksprogramma ‘Institutions, Decisions and Collective Behaviour’. De betrokken onderzoekers bestuderen hoe politieke conflicten ontstaan en welke typen crises we kunnen onderscheiden. Hoe hanteren…

Promotor: B. van de Water

Op 17 november 2020 verdedigde Shuai Guo zijn proefschrift 'Recognition of Foreign Bank Resolution Actions'. Het promotieonderzoek is begeleid door promotoren prof.dr. R.D. Vriesendorp en prof.dr. M. Haentjens.

Promotores: Prof.dr. C.U. Keller, Prof.dr. H.C. Gerritsen

Promotor: Prof.dr. B. van de Water

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

The thesis introduces three methods for high-dimensional prediction problems in the biomedical field. The methods make use of empirical and variational Bayes in the estimation.