41 search results for “chirality” in the Public website
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Topology and Geometry in Chiral Liquids
We study the interplay of topology and geometry with chirality for several passive and active systems, employing both analytical and numerical methods.
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Postdoctoral Researcher Chiral Metabolomics (0.8 fte)
Science, Leiden Academic Centre for Drug Research (LACDR)
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Chiral Pyrroline-Based Ugi-Three-Component Reactions Are under Kinetic Control
Although it is often assumed that the stereochemistry in Ugi multicomponent reactions is determined in the final Mumm rearrangement step, experimental and computational evidence that Ugi reactions on hydroxylated pyrrolines proceed under kinetic control is reported.
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Supercurrents gone chiral: new type of superconducting junction
Unconventional superconductors form one of the big mysteries in physics. Among them is strontium ruthenate, which stands out as a controversial superconductor. During his PhD, Leiden physicist Kaveh Lahabi has provided new insights into the nature of superconductivity in this material, leading to a…
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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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Sterile neutrinos in the early Universe
Promotor: A. Achúcarro, Co-promotor: A. Boyarsky
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Hot Nanoparticles
Gold nanoparticles show surprisingly strong interactions with light in the visible range, which can be divided into scattering, absorption, and photoluminescence.
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A semisynthetic peptide-metalloporphyrin responsive matrix for artificial photosynthesis
This thesis is concerned with the constitution of chiral responsive matrix assemblies that may undergo light-driven conformational changes and self-select vibrations to develop vibronic states for driving semi-classical coherent transfer with nearly 100% yield in a lossless NCAP process.
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Sabine Auras
Science
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Exploring structure dependencies of gas-surface interactions with curved single crystals
Curved single crystals provide variable, but well-defined surface structures.
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On the geometry of fracture and frustration
Promotor: Prof.dr. M.L. van Hecke, Co-Promotor: Prof. dr. V. Vitelli
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Biomedical Microscale Analytics
The Biomedical Microscale Analytics group is led by Dr. Rawi Ramautar. In present-day metabolomics, and bioanalysis in general, the analytical toolbox used encounters difficulties for the analysis of limited amounts of biological samples. As a result, a significant number of crucial biomedical/clinical…
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Enabling volume-restricted metabolomics using next-generation microscale analytical tools
Development of micro-scale analytical tools to be used to address relevant biomedical questions in the field of neuroscience, and other application areas intrinsically dealing with small sample amounts.
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Gauge theory and nematic order : the rich landscape of orientational phase transition
Promotor: J. Zaanen
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Structural changes in single chromatin fibers induced by tension and torsion
Promotor: Prof.dr. T. Schmidt, Co-promotor: Dr. ir. S. J.T. van Noort
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The symmetry of crystals and the topology of electrons
Promotor: J. Zaanen, Co-Promotor: V. Juricic
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On transport properties of Weyl semimetals
Promotor: C. W. J. Beenakker, Yu. V. Nazarov, Co-promotor: J. Tworzydlo
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Size effects in microstructured superconductors and quantum materials
We find ourselves in an era of transition, not just towards a more computing- and data-driven society but also away from unsustainable fossil fuels as an energy source.
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Cheianov Group (Quantum Many Body Physics in Condensed Matter and Ultracold Atomic Systems)
The research in my group addresses a range of topics related to quantum many-body physics.
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Search for mechanisms to control massless electrons in graphene
Beenakker
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Enlightening the Primordial Dark Ages
This thesis is dedicated to the exploration of the primordial dark ages: unknown physics during the earliest stages of the Universe’s expansion that have not yet been directly probed by observations. Cosmic inflation is a burst of exponential expansion of space after the “Big Bang”.
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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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Mathematics-based strategies for repairing tumour blood vessels
How does the extracellular matrix coordinate endothelial cell behavior during angiogenesis, and how do metabolic waste-products and matrix-degrading enzymes produced by the tumour modify the extracellular matrix so as the change the cellular coordination?
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Dick Stufkens Prize 2020 awarded to physical chemist Mark Koenis
The Dick Stufkens Prize 2020 for the best PhD thesis of the Holland Research School of Molecular Chemistry has been awarded to Dr Mark Koenis. Koenis graduated 21 February with the distinction cum laude on his thesis 'Advanced Spectra Analysis to Determine Complex Structure and Chirality'. He describes…
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New generation of graphene biosensors based on smooth surfaces and sharp edges
The surface and the edges of graphene are expected to provide higher sensitivity and specificity in detecting and characterizing single molecules. However fundamental physical limits exist in reaching an ultimate precision in detecting the dynamics of chemical and biological systems. The research in…
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Capillary Electrophoresis-Mass Spectrometry for Metabolomics
In the field of metabolomics, capillary electrophoresis-mass spectrometry (CE-MS) has become a very useful analytical technique for the profiling of highly polar and charged metabolites in biological samples. In order to highlight the unique features of CE-MS for metabolomics studies, Dr. Rawi Ramautar…
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Leiden involved in three out of five Physics Vrije Programma grants
NWO has assigned Physics Vrije Programma grants to five collaborations of physicists. Leiden University is involved in three of them.
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Combined technique measures nanostructures ten times better than before
Researchers at Leiden University and TU Delft have combined two techniques that are used to measure the structure of biomolecules, creating a method that is ten times more sensitive.
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Joan van der Waals colloquium - online
Lecture
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Peculiar particles show paradoxical behavior
Theoretical physicists research a special class of particles; Weyl fermions. They have found them to exhibit paradoxical behavior, in contradiction to a thirty-year old fundamental theory in electromagnetism. A possible application is a new kind of electronics—spintronics. Publication in Physical Review…
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Reedijk Symposium 2019: Function-based nonadiabatic principles for artificial photosynthesis with high yield
Lecture
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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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Invited speakers
Speakers that have accepted to participate:
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Reedijk Symposium 2019: Setting molecular chemistry in motion
Lecture
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This Week's Discoveries | 18 February 2020
Lecture
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Joan van der Waals colloquium - online
Lecture
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LIC Lecture: Helical supramolecular polymers - Toward structure-function relationships
Lecture
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Size Effects in Microstructured Superconductors and Quantum Materials
PhD defence
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Joan van der Waals colloquium
The Joan Van der Waals colloquium is an ongoing bi-weekly lecture series.
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Chemical Biology Lecture: Functional supramolecular systems and materials
Lecture
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Van Marum Colloquium: Theoretical studies of the structure and catalytic activity of metal nanoclusters
Lecture