988 zoekresultaten voor “single molecule spectroscopy” in de Publieke website
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Zoeken naar een minuscule fata morgana
Een fata morgana ontstaat wanneer door zonlicht de lucht boven de grond opwarmt. Natuurkundige Michel Orrit en zijn collega’s hebben dit principe gebruikt op de schaal van nanometers om enkele moleculen te zien. Hun artikel verscheen op 15 oktober in Science.
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.
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Understanding functional dynamics and conformational stability of beta-glycosidases
Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.
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Biofysici zien hoe stamcellen beslissingen maken
Embryonische stamcellen hebben het opmerkelijke vermogen om zich door te ontwikkelen tot elk type cel. Tijdens hun metamorfose richting bijvoorbeeld een lever- of hartcel, moeten ze steeds weer kiezen tussen verschillende ontwikkelingspaden. Hoe ze deze beslissingen maken is grotendeels onbekend. Een…
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Slangengifklieren in het lab gekweekt
Voor het eerst hebben onderzoekers uit Utrecht, Leiden, Amsterdam, Liverpool en Maastricht mini-orgaantjes van slangengifklieren in het lab gekweekt. De groepjes cellen kunnen gifmoleculen produceren. Dit is een belangrijke stap om slangenbeten beter te behandelen. Publicatie in toptijdschrift Cell…
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The impact of one: single cell analysis of T cell states in human cancer
Promotie
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Samenwerken voor efficiënte medicijnontwikkeling
De keten die patiënten voorziet van nieuwe medicijnen, bestaat uit diverse complexe schakels: van fundamentele wetenschap, tot klinische tests, tot productie. Deze hele keten is aanwezig in Leiden. De Universiteit Leiden, het Leids Universitair Medisch Centrum (LUMC) en de bedrijven op het Leiden Bio…
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Bernhard Brandl
Wiskunde en Natuurwetenschappen
brandl@strw.leidenuniv.nl | +31 71 527 5830
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Oncode Accelerator
Nog altijd lukt het niet om alle kankerpatiënten van de juiste behandeling te voorzien. Oncode Accelerator wil daarom de manier waarop we kankerbehandelingen ontwikkelen innoveren: binnen het programma wordt de patiënt centraal gesteld. Universiteit Leiden en LUMC gaan hier samen met andere partijen…
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Surface Reactivity of Activated CO2 Selective use of energy in splitting CO2
Juurlink
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Nieuwe antibiotica
Ziekteverwekkende bacteriën zijn steeds vaker resistent voor de huidige antibiotica. De vraag naar nieuwe antibiotica wordt daarmee steeds groter. Professor Gilles van Wezel zoekt naar nieuwe vormen van antibiotica in goede bacteriën die in de grond leven.
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Electroreduction of nitrate and carbon dioxide on copper electrodes: a mechanistic study
In this thesis we have discussed several parameters that affect the electrochemical conversion of enviromentaly harmful molecules such as nitrates and carbon dioxide to more valuable and less deleterious compounds, in order to cast light onto the mechanism of the reaction to achieve an efficient and…
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Inextricable ties between chemical complexity and dynamics of embedded protostellar regions
Promotor: E. F. van Dishoeck, Co-promotor: C. Walsh
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Volatile compounds from Actinobacteria as mediators of microbial interactions
Streptomyces are bacteria abundant in soil that participate in diverse and complex interactions. These bacteria are the main producers of the antibiotics we currently use in the clinic.
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Dyslipidemia at the crossroad of the skin barrier and the arterial wall
The research described in this thesis shows that hypercholesterolemia, a well-established risk factor for atherosclerosis, can impact skin lipid pool and barrier function already at young age. In the field of atherosclerosis, we showed that the small peptide Lyp-1 can be used as a targeting molecule…
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NMR Faciliteit
Met de NMR faciliteit doen we onderzoek naar de synthese van paramagnetische moleculen om kennis te vergaren over de structuur en dynamiek van eiwitten. Deze kennis kan dienen als basis voor een medicijn dat zich hecht aan een eiwit of voor de ontwikkeling van vaccins. Medicijnontwikkeling is één van…
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Tales of Orion: the interplay of gas, dust, and stars in the interstellar medium
Promotores: Prof.dr. A.G.G.M. Tielens, Prof.dr. L. Kaper (UvA)
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New polymyxin antibiotics for old problems: addressing nephrotoxicity and resistance
Polymyxins are clinically used antibiotics, discovered in mid-20th century. Once abandoned due to excessive nephrotoxicity, they are now used increasingly to address infections caused by multi-drug resistant Gram-negative bacteria.In this thesis, we describe the development and synthesis of analogues…
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Surface Temperature and the Dynamics of H2 on Cu(111)
Heterogeneous catalysis is one of the fundamental processes of modern life, being common in industrial refinery and hydrogen vehicles, all the way to the living cell. The dissociation of H2 on Cu(111) is an important benchmark system for studying heterogeneous catalysis, with a large and varied amount…
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Clavis Aurea? Structure-enabled approaches of identifying and optimizing GPCR ligands
Promotores: A.P. IJzerman, H.W.T. van Vlijmen
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Freezing conditions in warm disks: snowlines and their effect on the chemical structure of planet-forming disks
This thesis focusses on the temperature structure in protoplanetary disks. The relation between structures seen in the dust and gas-phase molecules is investigated.
- Geuren en Kleuren: de scheikunde achter ruiken en zien
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Decoding the molecular makeup of the human ovary through single-cell transcriptomics
Promotie
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Learning cell identities and (post)-transcriptional regulation using single- cell data
Promotie
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Animal Sciences
Wij voeren multidisciplinair onderzoek uit op het niveau van moleculen, cellen en organismen binnen de dierkunde. Ons doel is om fundamentele kennis te vergroten over gezondheid en ziekte.
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BioTherapeutics
Onderzoek in het BioTherapeutics onderzoeksprogramma is gericht op een soepelere en snellere transitie van preklinisch onderzoek naar geneesmiddelen en op het afleveren van medicijnen in het menselijk lichaam met behulp van kleine moleculen en ‘biologics’.
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Capillary Electrophoresis-Mass Spectrometry based Metabolomics Approaches for Volume-restricted Applications
Metabolomics is a powerful tool that can provide a comprehensive insight into the complexity of human biology and the pathophysiology of diseases. By analyzing the metabolome, which refers to the complete set of small (endogenous) molecules (with a mass <1500 Da) present within a given biological system,…
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Nieuwe meetmethode brengt moleculaire chips dichterbij
Leidse en Delftse wetenschappers hebben vastgesteld wat elektronentransport via een enkel molecuul zo moeilijk maakt. Ze ontdekten dit dankzij een nieuwe meetmethode. Hun bevinding brengt elektronische chips een stap dichterbij. Ze publiceerden erover in Nature Nanotechnology.
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Harold Linnartz benoemd tot hoogleraar Laboratorium Astrofysica
Het College van Bestuur heeft prof.dr. Harold Linnartz per 1 juni 2011 benoemd tot hoogleraar Laboratorium Astrofysica. Linnartz werkt sinds 2005 als universitair hoofddocent bij de Sterrewacht Leiden.
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Identification and characterization of viral Xrn1-resistant RNAs
Several single-stranded RNA viruses make use of Xrn1-resistant RNAs in their 3’ untranslated regions of their genome RNAs in order to increase their pathogenicity.
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Pharmacogenomics in drug development: implementation and application of PKPD model based approaches
Promotor: Prof.dr. M. Danhof, Co-Promotor: J. de Jongh
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Effects of the early social environment on song and preference learning in zebra finches
Songbirds as vocal learners learn their songs and song preference from social tutors. Tutor choice for both song and preference learning are important to characterize for understanding individual learning performance and cultural transmission of song.
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Mechanical Response of Foams: Elasticity, Plasticity, and Rearrangements
Promotor: M.L. van Hecke
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Engagement of citizens and public professionals in the co-production of public services
The idea of citizens and public professionals collaborating to provide public services has widely spread in several countries around the globe. Co-production is often presented as the go-to solution for challenges like a legitimacy crisis of both the government and the market, and financial concerns.…
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Small scale kinematics of massive star-forming cores
Promotor: Prof.dr. E.F. van Dishoeck, Co-Promotor: M.R. Hogerheijde
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Chemical Similarity: Structuring Risk and Hazard Assessment
At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.
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Supercritical carbon dioxide spray drying for the production of stable dried protein formulations
Promotor: W. Jiskoot, Co-promotor: H.A. Every
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Suppressing a Sea of Starlight: Enabling technology for the direct imaging of exoplanets
Promotor: Christoph U. Keller, Co-promotores: Matthew A. Kenworthy, Frans Snik
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Shaping Massive Galaxies: the structural evolution of galaxies across
Galaxies in the local Universe fall into two main categories of spirals and ellipticals. In this Thesis, we explore the structural evolution of galaxies into this bimodal distribution.
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The power of one qubit in quantum simulation algorithms
Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…
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Scattering and absorption in 2D optics
Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.
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Weighing the Dark: Cosmological Applications of Gravitational Lensing
Promotor: K. Kuijken, Co-Promotor: H. Hoekstra
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Neonicotinoids in nature: The effects on aquatic invertebrates and their role in ecosystems
This thesis describes the role of pollution, specifically neonicotinoid insecticides, as an actor of the ongoing biodiversity decline.
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Photocatalytic redox reactions at the surface of liposomes
Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet
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Novel approaches for direct exoplanet imaging: theory, simulations and experiments
The next generation of high-contrast imaging instruments on space-based observatories requires sophisticated wavefront sensing and control in addition to a high-performance coronagraph.
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Novel Immune Cell-Based Therapies for Atherosclerosis
Promotor: Prof.dr. J. Kuiper
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Massively collaborative machine learning
Promotor: J. N. Kok, Co-promotor: A. J. Knobbe
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Guiding evolutionary search towards innovative solutions
Promotors: Prof.dr. T.H.W. Bäck, Prof.dr. B. Sendhoff (Technische Universität Darmstadt)
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Granular Flows: Fluidization and Anisotropy
Promotor: Prof.dr. M.L. van Hecke
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The origins of friction and the growth of graphene, investigated at the atomic scale
Promotor: J.W.M. Frenken