361 search results for “cryo-electron microscopy” in the Public website
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Surface and Interface Science
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…
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A clear picture of bacteria
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…
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A physicochemical study of Medieval and Post-Medieval ceramics from the Aegean
Archaeometric analysis of glazed pottery assemblages from the Early Byzantine to the Early Modern periods in the Aegean.
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Optoplasmonic detection of single particles and molecules in motion
Detecting nanoscopic objects plays an important role in nanoscience in particular, in the rapidly growing field of nanobiology. The forebear to modern super-resolution microscopy for single molecule investigation, is fluorescence microscopy.
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Insights into microtubule catastrophes: the effect of end-binding proteins and force
For each living organism health is ensured by correct functioning of its cells. Cells therefore have elaborate methods for regulation of their proteins.
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Quantum Matter and Optics
Research groups in the Quantum Matter & Optics programme investigate electronic properties of matter and light-matter interactions with emphasis on quantum information.
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Sense Jan van der Molen Lab - Physics of Quantum Materials
In our lab, we investigate the physics and material properties of low-dimensional systems.
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Universities of Leiden, Delft and Rotterdam aiming to work together on cooperation with China
Chinese universities have big ambitions to be among the leading international higher education institutions. What does this mean in terms of opportunities for researchers at the universities of Leiden, Delft and Rotterdam? Staff at the universities recently discussed the issue.
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Physicist Michel Orrit new member KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit.
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Facilities
Our facilities cover:
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Research Facilities
Our Division has created and maintains the Visualisation Core Facilities of the LACDR. This is a multi-user facility offering basic and advanced microscopic techniques to scientists of the LACDR.
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Vertebrate automated screening technology (VAST)
How can you use robots and automatic recognition of microscopic images to test the effect of drugs exceptionally quickly?
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Nanoparticulate Impurities in Pharmaceutical-Grade Sugars and their Interference with Light Scattering-Based Analysis of Protein Formulations
PURPOSE: In the present study we investigated the root-cause of an interference signal (100-200 nm) of sugar-containing solutions in dynamic light scattering (DLS) and nanoparticle tracking analysis (NTA) and its consequences for the analysis of particles in biopharmaceutical drug products.
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Photothermal circular dichroism studies of single nanoparticles
In this work, we investigate the minute circular dichroism effects of single nanoparticles.To this aim, we apply photothermal imaging with a polarization-modulated heating beam.
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Drug Discovery and Safety (MSc)
The master's specialisation Drug Discovery and Safety at Leiden University provides students with research-oriented education into the discovery of new drug targets and new lead molecules, particularly in the field of cancer, through a combination of advanced imaging techniques (‘systems microscopy’),…
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Setup: MRFM
MRFM combines the principles of magnetic resonance and atomic force microscopy.
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Quantum Matter and Optics
The quantum nature of matter and light has grown into a broad and fruitful research field for theorists and experimentalists alike. It combines foundational research with toward applications, the most well known of which is the quantum computer.
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Research
Tuberculosis causes 1.5 million deaths yearly and anti-tuberculosis therapies are threatened by emergence of drug resistance. Development of innovative drug combinations should be accelerated with the use of translational pharmacological models. Moreover, host-directed therapies (HDT), which stimulate…
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Interactions in Designer Materials Unveiled
Graphene and other layered materials combine into completely new substances. Leiden physicists establish the ground rules for designing such materials by measuring how the layers in the stack interact. Publication on November 29 in Nature Communications.
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Discovery of metastasis promoting candidate drug targets
Discovery of metastasis promoting candidate drug targets
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Biomedical Imaging
The rapid advances in imaging technology enable to see inside the body with ever increasing detail.
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Formulation of biopharmaceuticals
Formulation of biopharmaceuticals
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Equipment (Microscopes)
The cell observatory equipment is hosted by several institutes. Each of the institutes maintain their own instruments A detailed list of equipment can be found below per institute
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Michel Orrit and Hermen Overkleeft members KNAW
The Royal Netherlands Academy of Arts and Sciences (KNAW) selects prominent researchers as members based on their scientific achievements. On September 17th, the KNAW will install 21 new members, including Leiden physicist Michel Orrit and chemist Hermen Overkleeft.
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Bas ter Braak
Science
s.j.ter.braak@lacdr.leidenuniv.nl | +31 71 527 2727
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Marcel Schaaf
Science
m.j.m.schaaf@biology.leidenuniv.nl | +31 71 527 4975
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Cell Systems and Drug Safety
The research within the Division of Cell Systems and Drug Safety, headed by Prof. Bob van de Water, is focused on novel therapeutic modalities and novel concepts in early drug discovery, in order to develop more effective and safer therapeutic strategies. We generate advanced cell and computational…
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The added risk of size
What are the risks of nanoparticles?
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Biological model representation and analysis
Promotor: Prof.dr. J.N. Kok, Co-promotor: F.J. Verbeek
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Our approach
Our group operates at the cross-roads of different disciplines: molecular and cellular microbiology, biochemistry, structural biology and biophysics. The group harbors expertise in a multitude of molecular and cellular approaches including:
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Our technology: Cathodic Corrosion Method (CCM)
Cathodic corrosion for producing nanoparticles was (re)discovered when trying to control the electrochemical etching of a scanning tunneling microscopy (STM) tip.
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Stefan Semrau Lab - Quantitative Single-Cell Biology
We study cell-fate decision-making using embryonic stem cells as a model system. Stem cells integrate a large number of cues to direct their development into a great variety of cell types.
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Cum laude on understanding catalysts under extreme conditions
Physical chemist Rik Mom developed a revolutionary way to investigate catalysts in action in detail. For this work he received the distinction cum laude during his PhD defence on 29 June.
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Ariane Briegel
Science
a.briegel@biology.leidenuniv.nl | +31 71 527 8850
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Unfolding secrets of catalysts
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.
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Cancer Therapeutics and Drug Safety
In this research group, headed by Bob Van de Water, cell signaling programs that underlie adverse drug reactions as well as cancer development and progression are unraveled. Adverse drug reactions involve cell injury in critical target organ cells which leads to the activation of cellular stress response…
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Single Molecule Detected for Use in Quantum Network
Leiden physicists have managed to detect a single molecule called dibenzoterrylene in a new crystal, and found that it is a candidate component for a quantum network. Future quantum computers will need such a network to work together while maintaining their advantages. Publication in ChemPhysChem jo…
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Cryotomographic visualization of symbiosis initiation in the Euprymna scolopes-Vibrio fischeri association
The overall aim of this project is to understand, on the molecular level, how the bacterium V. fischeri cells interacts with their squid host.
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Kraft Lab - Self-assembly in Biological and Soft Matter
Research in the Daniela Kraft Lab focuses on self-assembly in biological and soft matter systems, ranging from anisotropic colloidal particles to lipid membranes, emulsions, and viruses.
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P.J. Veth Building (completed)
The refurbished P.J. Veth Building - the first completed sub-project in the Humanities Campus project - was officially opened in the summer of 2017. The Faculty of Humanities moved in straight away. . The building was meticulously transformed into a modern teaching building with attractive areas for…
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Research in Physics, Quantum Matter and Optics (MSc)
The master’s specialisation Research in Physics, Quantum Matter and Optics at Leiden University offers a thorough experience on the front line of physics research with a practical training of communicative and computer skills. The programme focuses on Condensed Matter problems, such as Molecular Electronics,…
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Invited speakers
Speakers that have accepted to participate:
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The Lead Zeppelin
As an alternative to the diving board shaped force sensor, we are now developing a magnetically levitated small superconducting particle – or ‘Lead Zeppelin'' – as our mechanical resonator. We explore routes towards detection of gravity between small objects.
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Quantitative Particle Tracking
Brownian motion is the random motion of (colloidal) particles due to collisions with the atoms and molecules of the solvents, which are moving due to temperature.
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Molecular mechanisms of adverse outcome and translational biomarkers
Adverse drug reactions (ADRs) remain one of the major reasons for patient mortality and (early) drug withdrawal. Currently, different in vivo and in vitro models are used to assess the toxic potential of drugs in the pre-clinical phase. Unfortunately, the predictive value of this model does not fit…
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Photothermal studies of single molecules and gold nanoparticles: vapor nanobubbles and conjugated polymers
Promotor: M.A.G.J. Orrit
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Water related adsorbates on stepped platinum surfaces
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Photon detection at subwavelength scales
Promotor: E.R. Eliel, Co-Promotor: M.J.A. de Dood
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Ultrasensitive in situ visualization of active glucocerebrosidase molecules
Deficiency of glucocerebrosidase (GBA) underlies Gaucher disease, a common lysosomal storage disorder. Carriership for Gaucher disease has recently been identified as major risk for parkinsonism. Presently, no method exists to visualize active GBA molecules in situ. We here report the design, synthesis…
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Translational pharmacokinetics-pharmacodynamics in zebrafish: integration of experimental and computational methods
The zebrafish is a promising vertebrate model organism in early drug discovery and development.