325 zoekresultaten voor “chair electronic microscopy cryo-em” in de Publieke website
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Exposure and health Assessment of Persistent Organic Pollutants (POPs) at e-waste recycling site among workers in the informal sector in Nigeria
Do e-waste workers display enhanced effects of adverse health effects due to informal e-waste processing in Nigeria? Is there a difference between the health outcomes of the exposed and the control groups? Are there difference in health effects within and between job groups (collectors, dismantlers,…
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Taking control of charge transfer: strategic design for solar cells
Promotor: Huub J.M. de Groot, Co-promotor: Francesco Buda
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Towards Optical Detection of a Single Electron
Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.
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Electrochemical and surface studies of the effect of naphthalene-based additives on tin electrodeposition
Tin electrodeposition applications have rapidly evolved in the past 25 years.
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The heart of oxygenic photosynthesis illuminated
Promotor: Prof.dr. H.J.M de Groot, Co-Promotor: A. Alia
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Exploring charge transport properties and functionality of molecule-nanoparticle ensembles
Promotor: J.M. van Ruitenbeek, Co-Promotor: S.J. van der Molen
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The symmetry of crystals and the topology of electrons
Promotor: J. Zaanen, Co-Promotor: V. Juricic
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Meta-heuristics for vehicle routing and inventory routing problems
Promotores: T.H.W. Bäck, Y. Tan, Co-promotor: M.T.M. Emmerich
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Development of highly accurate density functionals for H2 dissociation on transition metals
Metals surfaces form a group of effective catalysts for the reaction of small molecules such as hydrogen (H2).
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Geometric phases in soft materials
Geometric phases lead to a nontrivial interference result when an electron's different quantum mechanical paths choices encircle a magnetic coil in an Aharonov-Bohm experiment.
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Self-assembly of flexible and rigid structures: from colloidal molecules to lattices
Self-assembly offers a promising route to create complex structures and materials using simple building blocks. Through, colloidal self-assembly, we can understand the governing principles of the self-assembly process and unlock its potential in diverse applications in materials science, photonics and…
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Huub de GrootWiskunde en Natuurwetenschappen
groot_h@chem.leidenuniv.nl | +31 71 527 4539
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Onze Medewerkers
Het Leiden Leadership Centre is een interdisciplinaire netwerkorganisatie. Als onderdeel van het Instituut Bestuurskunde van de Universiteit Leiden neemt het LLC een verbindende rol op zich door samen te werken met studenten, professionals uit de praktijk en wetenschappers vanuit verschillende disci…
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Science Friction (SciFri)
Hoe kan wrijving op de nanoschaal gereduceerd worden?
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Oplossing verstoringseffect STM-scanning
Experimenten met STM-scanning op slecht geleidende materialen zijn uitdagend, en veroorzaken soms een verstoringseffect. Een nieuw model corrigeert voor dit effect, zodat fysici beter in staat zijn om materialen te bestuderen tijdens hun missie om onconventionele supergeleiding te begrijpen. Publicatie…
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Dr. Mikiko Otani as the Rotating Honorary Chair Enforcement of Children's Rights 2023/2024 at the Department of Child Law
Leiden University Proudly Announces Dr. Mikiko Otani as the Rotating Honorary Chair Enforcement of Children's Rights 2023/2024
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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.
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A Model Membrane Approach to Elucidate the Molecular Organization in the Skin Barrier
Promotor: J. A. Bouwstra
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Image-based phenotypic screening for breast cancer metastasis drug target discovery
The main aim of this thesis was to unravel the signaling and regulatory networks that drive tumor cell migration during breast cancer metastasis.
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Understanding the uptake and internal distribution of metallic nanoparticles in Danio rerio larvae
The aim is to discover where differently shaped metal nanoparticles distributes in Danio rerio, linking the distribution with genomic responses and so come up with a Mode of Action.
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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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Photothermal studies of single molecules and gold nanoparticles: vapor nanobubbles and conjugated polymers
Promotor: M.A.G.J. Orrit
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Photon detection at subwavelength scales
Promotor: Prof.dr. E. Eliel, Co-Promotor: M.J.A. de Dood
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The environmentally-regulated interplay between local three- dimensional chromatin architecture and gene expression
Nucleoid associated proteins maintain the architecture of the bacterial chromosome and regulate gene expression, hinting that their role as transcription factors may involve local three-dimensional chromosome re-modelling.
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Applications for activity-based probes in biomedical research on glycosidases
Lysosomal glycosidases are acid hydrolases that fragment glycoconjugates in lysosomes.
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Network flow algorithms for discrete tomography
Promotor: R. Tijdeman, Co-promotor: H.J.J. te Riele
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Giant unilamellar vesicles: An efficient membrane biophysical tool and its application in drug delivery studies
Promotor: A. Kros
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Atomic Insights into Hydrodesulfurization
Hydrodesulfurization (HDS) is an ubiquitous part of oil refining that ensures that fuels are cleaned of impurities and environment release of pollutants such as SOx and NOx gasses are minimized.
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The electrode-electrolyte interface in CO2 reduction and H2 evolution: a multiscale approach
Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.
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De blinde microscoop: van MRI op de nanoschaal tot academische vorming
Op vrijdag 25 mei is de oratie van Tjerk Oosterkamp over zijn leeropdracht 'Experimentele Natuurkunde'.
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Assembling anisotropic colloidal building blocks
This PhD-thesis presents a study on micron-sized particles, so-called colloids. By controlling the chemical and physical properties of these particles, such as the interparticle interaction and the particles’ shape, colloids can act as building blocks that self-assembly into larger structures.
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Photosynthetic light reactions at the gold interface
Promotor: T.J. Aartsma, Co-promotor: R.N. Frese
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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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A computational study of structural and excitonic properties of chlorosomes
The long-held desire - to link structure directly to function and to explain molecular mechanisms based on basic chemical or physical principles - is finally coming closer, satisfying not only our scientific curiosity but also offering new solutions to the many challenges in the field of health, energy…
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Multimedia Research and documentation of African Oral Genres
The project Multimedia Research and Documentation of African Oral Genres: Connecting Diasporas and Local Audiences (Director: D.Merolla) focuses on multimedia as technology that allows scholars to share documentation and scientific knowledge with the cultural owners of the collected oral genres.
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Advanced Master Law and Digital Technologies (LDT)
The Advanced Master Law and Digital technologies is eLaw's eigen masterprogramma. In een wereld waar online en offline volledig samensmelt, zijn wet en regelgevingsvraagstukken gerelateerd aan het gebruik van digitale technologie aan de orde van de dag.
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Global migration history
Historische migratiestudies hebben zich lange tijd voornamelijk gericht op de Europese en Atlantische wereld. In dit programmatische langetermijnproject willen we het perspectief verbreden naar de volledige migratie-ervaring van de niet-westerse wereld.
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Organisatie
De sectie Cognitieve Psychologie is als volgt georganiseerd:
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Cleveringa geëerd met standbeeld in geboortestad Appingedam
Bijna 81 jaar na zijn befaamde speech tegen de Duitse bezetter, wordt de Leidse hoogleraar Rudolph Pabus Cleveringa herdacht in zijn Groningse geboortestad Appingedam. Op 12 november wordt daar een standbeeld onthuld en zijn er diverse andere activiteiten.
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Towards a single-molecule FRET study of Frauenfelder's nonexponential rebinding of CO in myoglobin
Early time-resolved experiments by Frauenfelder on the ensemble of the kinetic rebinding of CO to myoglobin molecules resulted in a stretched exponential relaxa-tion due to a very large spread of the reaction rates of individual molecules.
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Evolution and development of flowers, fruits and inflorescences of Phalaenopsis and other orchid species
The study of orchid flowers, fruits, and inflorescences is crucial due to the remarkable diversity of orchid species and their unique adaptations to pollinators and seed dispersers. However, our understanding of the evolution and development of these organs within the orchid family remains limited.
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Developing systems for high-throughput screening of infectious diseases using zebrafish
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Prof.dr. A.H. Meijer
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Quantumnetwerken en quantumsensing
Binnen Quantum Leiden doen verschillende groepen onderzoek naar quantumnetwerken en quantumsensing.
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Synthetic, Physical and Computational Chemistry of Propeller-shaped Polycyclic Aromatic Hydrocarbons
This thesis systematically studies the physicochemical properties of non-planar, propeller-shaped, polycyclic aromatic hydrocarbons. The synthesis of several so-called propellerenes is described on a gram scale, using optimized procedures aimed at using less hazardous reagents and reducing the amount…
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Stable single molecules for quantum optics and all-optical switches
Promotor: Prof.dr. M.A.G.J. Orrit
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Student projects
To get an idea of the science communication products and research that is possible, a few examples of student projects of recent years are shown below.
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Antoni van Leeuwenhoek (najaar 2023)
In samenwerking met Rijksmuseum Boerhaave naar aanleiding van hun tijdelijke tentoonstelling 'Onvoorstelbaar. Hoe Antoni van Leeuwenhoek de microwereld ontdekte'
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Organisatie
Het Leiden University Centre for Linguistics (LUCL) is een onafhankelijk instituut binnen de Faculteit der Geesteswetenschappen van de Universiteit Leiden. Een management team, bestaande uit een wetenschappelijk directeur, een onderwijsdirecteur en een instituutsmanager, is verantwoordelijk voor de…
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Leiden Governance Programme
Om ervaren professionals die werken op het snijvlak van publiek en privaat optimaal uit te rusten voor deze cruciale uitdagingen lanceert het Instituut Bestuurskunde van de Universiteit Leiden in 2023 het Leiden Governance Programme for Executives.
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Evolutie van bacteriële beweging ontrafeld
Een internationaal team met onderzoekers uit Leiden heeft ontdekt hoe een bacterie een intern systeem heeft herschikt om grip op beweging te krijgen. Gecontroleerde beweging is heel belangrijk bij het binnendringen van een gastheer, met mogelijk ziekte tot gevolg. Publicatie op 27 april in Nature Co…