932 search results for “electron microscopy” in the Public website
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Unraveling the mechanism of multicopper oxidases: from ensemble to single molecule
Promotores: Prof.dr. G.W. Canters, Prof.dr. T.J. Aartsma
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Paradox in superconductivity at high temperature
Nature publishes an article on a paradoxical discovery in superconductivity. Physicists are searching for superconductivity at high temperatures so that less cooling is needed in for example MRI machines. News & Views article by Prof. Jan Zaanen in the same issue of August 19th.
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Explorations of Water Oxidation Catalysis in Explicit Solvent
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.
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How Oncode-PACT is bringing new cancer medicines closer with 325 million in Growth Fund money
How can you ensure that more experimental drugs reach the finish line? At the moment, only one in twenty cancer drugs that are tested on humans makes it to the market. This is an enormous loss for patients and society. With a grant from the National Growth Fund, Oncode-PACT aims to efficiently select…
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Merijn de Bakker
Science
m.a.g.de.bakker@biology.leidenuniv.nl | +31 71 527 5043
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Fons Verbeek
Science
f.j.verbeek@liacs.leidenuniv.nl | +31 71 527 5773
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Abolfazl Sajadi
Science
a.sajadi@liacs.leidenuniv.nl | +31 71 527 4799
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Daniel Vale
Faculteit Rechtsgeleerdheid
d.s.vale@law.leidenuniv.nl | +31 71 527 8838
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Pablo Ilgemann
Science
p.m.ilgemann@cml.leidenuniv.nl | +31 71 527 2727
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Jörg Meyer
Science
j.meyer@chem.leidenuniv.nl | +31 71 527 5569
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Can we live longer? Leiden physicist makes discovery in protective layer in genes
With the aid of physics and a minuscule magnet, researchers have discovered a new structure of telomeric DNA. Telomeres are sometimes seen as the key to living longer. They protect genes from damage but get a bit shorter each time a cell divides. If they become too short, the cell dies. The new discovery…
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Molecular and Nano-Engineering with Iron, Ruthenium and Carbon: Hybrid structures for Sensing
Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.
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Awards and Grants 2018
An overview of awards and prizes granted to our staff and students in 2018, as well as special appointments and royal distinctions.
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Activity-based protein profiling for drug discovery
Activity-based protein profiling (ABPP, also termed chemical proteomics), is one of the pillars of chemical biology, and at LED3 we have taken it to the next level. ABPP allows the assessment of protein function in live cells and tissues, which means that the activity of a complete protein family can…
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Platinum electrochemistry through a magnifying glass
In most applications, electrocatalysts exhibit a large surface area to volume ratio, for example using nanoparticles.
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Drug safety Sciences
Our research in the area of safety sciences aims to increase the mechanistic understanding of cellular toxicity of drugs and, in a broader sense, chemicals.
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Rachel Doherty wins LION Image Award with famed Microboat image
The annual LION Image award goes to the 30 micrometer long 3D printed microboat image that went viral earlier in October 2020, submitted by Rachel Doherty of the Daniela Kraft lab.
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Functional fluorescent materials and migration dynamics of neural progenitor cells
In this thesis, time-lapse fluorescent microscopy plays a pivotal role in investigating functional materials within living cells as well as the migratory behaviour of neural progenitor cells.
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Nano-scale Electronic Structure of Strongly Correlated Electron Systems
PhD defence
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LION Image Awards
On 15 January, the winner of the famed LION Image Award will be announced. Submissions ranged from the famous 3d printed microboat to an eerily abstract graph depicting a Majorana fermion.
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Single-molecule microscopy in zebrafish embryos
PhD defence
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Spin-momentum locking in oxide interfaces and in Weyl semimetals
Electrons in a crystal lattice have properties that may differ from those of a free electron in vacuum.
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Huub de Groot
Science
groot_h@chem.leidenuniv.nl | +31 71 527 4539
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Microcoil MRI of Plants and Algae at Ultra-High Field: An exploration of metabolic imaging
This thesis investigates the relations between metabolism and anatomy through the use of Magnetic Resonance Imaging (MRI).
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Geert-Jan Kroes
Science
g.j.kroes@chem.leidenuniv.nl | +31 71 527 4396
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2012 Nanodiamonds and wildfire provide no support for meteorite impact at the end of the last Ice Age
Nanodiamonds and charcoal in Dutch soil provide no evidence for the alleged impact of a meteorite at the end of the last Ice Age. This is the conclusion of a research done by Utrecht University in collaboration with Leiden University and the University of Groningen.
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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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Microbiome ecology professor Ákos Kovács' new job feels like coming home
‘Working in Leiden is a dream come true.’ Ákos Kovács studied in his birth country Hungary and worked in Germany, Denmark and Groningen. As professor of Microbiome Ecology at IBL, he immediately started working together with his new colleagues to make discoveries about the versatile bacterial species…
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Tiny clumps recycle themselves into complex structures
Manufacturers produce high-end technology mostly top-down with large machinery, but small particles are able to build structures by themselves from the bottom up. A major challenge is that these particles easily clump together. Leiden physicist Daniela Kraft has developed a method to use this phenomenon…
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The most read stories of 2021 from Leiden University
Research into depression in children, Leiden alumni in the Dutch House of Representatives and an exceptional achievement by one of our students: what do this topics have in common? They are among our most read stories of 2021.
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Manipulating carbon nanotubes Towards the application as novel field emission sources
Promotor: Prof.dr.ir. T.H. Oosterkamp, N. de Jonge
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Deciphering fermionic matter: from holography to field theory
Promotor: K.E. Schalm, Co-promotor: S.S. Lee
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Sparsity-Based Algorithms for Inverse Problems
Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…
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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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Two young chemists win Marie Curie subsidy
The Leiden Institute of Chemistry (LIC) is to be joined by a further two talented young chemists. Bela Bode and Michele Pavanello have each won a Marie Curie subsidy. Bode will be studying electron transport in photosynthesis and Pavanello will be using computer models to study charge transport in large…
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Understanding superconductivity comes closer with major ERC grant for Milan Allan
Physicist Milan Allan will build an instrument that will bring superconductivity research further. He has been awarded an ERC Consolidator Grant of 2 million euros over the next five years. With his PairNoise programme he aims to detect paired electrons as they occur just above the temperature at which…
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Dissociative chemisorption on transition metal surfaces
The dissociative chemisorption of a molecule on a transition metal surface represents a rate-limiting step in many heterogeneously catalyzed processes, whereby most chemicals are made. In spite of the importance of this reaction, an accurate first principles approach to modeling it does not yet exist.…
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Nanoparticle – redox protein biohybrids
Artificial photosynthesis aims to produce fuels from solar energy using chemical processes. In semi-artificial photosynthesis, a hybrid approach is taken using both chemical and biotechnology approaches. We aim to develop hybrid systems between light-harvesting nanoparticles and redox-enzymes (oxidoreductases)…
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Becoming Literate by Means of the internet
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Magnetic imaging of spin waves and magnetic phase transitions with nitrogen-vacancy centers in diamond
The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.
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Dangerous microbes in lower level safety lab? A new technique could make it possible
Researchers need to work in specialized environments when they work with dangerous bacteria and viruses. These microbes spread easily, so only in labs with a high biosafety levels they can be studied. Unfortunately, to look at the microbes properly, expensive microscopes are needed that are not always…
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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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'Q-wires': Synthesis, electrochemical properties and their application in electro-enzymology
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'.
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Frontiers in surface scattering simulations
Theorists have recently made substantial progress in simulating reactive molecule-metal surface scattering but still face major challenges. The grand challenge is to develop an approach that enables accurate predictive calculations of reactions involving electronically excited states with potential…
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Spin-triplet supercurrents of odd and even parity in nanostructured devices
Triplet superconductivity refers to a condensate of equal-spin Cooper pairs (pairs of electrons with equal spin).
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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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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.