578 search results for “metals gezondheid” in the Public website
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Martina VijverFaculty of Science
vijver@cml.leidenuniv.nl | +31 71 527 1487
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Luminescence and applications of lanthanoid coordination polymers
Promotor: E. Bouwman, Co-Promotor: S. Bonnet
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Aimee BoyleFaculty of Science
a.l.boyle@lic.leidenuniv.nl | +31 71 527 2727
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Carina HarpprechtFaculty of Science
c.i.harpprecht@cml.leidenuniv.nl | +31 71 527 2727
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Ruthenium-peptide conjugates for targeted phototherapy
As leading cause of death worldwide, cancer is responsible for nearly 10 million deaths in 2020 according to World Health Organization (WHO). Cisplatin and its derivatives are commonly used chemotherapy agents for current cancer treatment in the clinics.
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TV-Interview Rene Kleijn about metals scarcity in relation to the energy transition
CML-researcher Rene Kleijn has spoken about metals scarcity in relation to the energy transition in a new Dutch popular scientific TV show called
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Mysterious metal depositions were ‘the most ordinary thing in the world’
In Bronze Age Europe many bronze objects such as axes, swords and jewels were deliberately left at specific spots in the landscape. PhD research by Leiden archaeologist Marieke Visser shows that these practices were expressions of people’s relationship with the world around them. ‘It was a completely…
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semi-local DFT is accurate for dissociative chemisorption on a transition metal surface, and when it is not
Density functional theory (DFT) with so-called semi-local exchange has been remarkable accurate for some dissociative chemisorption reactions on metals, but it has notoriously failed for others. A team of researchers from the University of California at Irvine and the Leiden Institute of Chemistry have…
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predictor for variation with geometry of barriers for reactions on metals
A semi-empirical version of the specific reaction parameter approach to density functional theory (SRP-DFT) has been remarkably successful at predicting dissociative chemisorption probability vs. incidence energy curves for reactions on metal surfaces. New quantum Monte Carlo (QMC) calculations on the…
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Copper complexes for bioinspired electrocatalysis relevant to the reduction of oxygen
This thesis advance our understanding and the application of molecular catalysts relevant to the reduction of oxygen as well as reduction of nitrite.
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Observing what cannot be observed: computational electrochemistry from carbon to hydrogen
In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.
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Phebe van LangeveldeFaculty of Science
p.h.van.langevelde@lic.leidenuniv.nl | +31 71 527 2727
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Cathodic corrosion
Cathodic corrosion is a relatively unknown phenomenon that can severely etch metallic electrodes at cathodic (negative) potentials.
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Strijd voor gezondheid
Inaugural lecture
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Jaco GeuchiesFaculty of Science
j.j.geuchies@lic.leidenuniv.nl | +31 71 527 2727
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Microscopy and Spectroscopy on Model Catalysts in Gas Environments
In surface science there is great effort to move from studying simple, flat model surfaces in vacuum to investigating more complex model catalysts in gas environments (in situ). This thesis gives three examples of such studies using microscopy and spectroscopy.
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Towards responsible and resilient mineral supply chains, with case studies on cobalt, antimony, and zinc
To meet the rising demand for minerals driven by the global shift to clean energy technologies, ensuring responsible and resilient supply chains is critical. Minerals like cobalt, lithium, and nickel for batteries, neodymium and zinc for wind turbines, and indium for solar panels are essential.
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NWO Projectruimte for physicists Schalm and Zaanen
NWO has awarded a €392k Projectruimte grant to physicists Koenraad Schalm and Jan Zaanen to study ‘strange metals’. These materials are alleged to follow the bizarre laws of quantum mechanics even at everyday length scales.
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Nipon DekaFaculty of Science
n.deka@lic.leidenuniv.nl | +31 71 527 2727
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PhD Theses
A full overview of THEOR PhD theses.
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Research
Research at the MCBIM group is comprised of the following research themes:
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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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COVID-crisis of COVID-kans? Adaptief en lerend bestuur in het LUMC en de regio
Covid-19 is een disruptieve ontwikkeling die hier en nu veel vraagt van zorgprofessionals, bestuurders en managers. Hoewel de crisis nog volop bezig is, is nu al duidelijk dat het Coronavirus een blijvende impact zal hebben op zorginstellingen en fundamentele vragen oproept over hoe we onze zorg optimaal…
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Medisch beroepsgeheim en de zorgplicht van de arts bij kindermishandeling in de rechtsverhouding tussen arts, kind en ouders
On 19 February 2019, Mirjam Sombroek-van Doorm defended her thesis 'Medisch beroepsgeheim en de zorgplicht van de arts bij kindermishandeling in de rechtsverhouding tussen arts, kind en ouders'. The doctoral research was supervised by Prof. dr. A.G. Castermans en Prof. mr. C.J.J.M. Stolker.
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Modeling energy conversion dynamics at interfaces
Chemical reactions go hand-in-hand with an energy exchange with the environment in which they take place. Surfaces offer a variety of energy dissipation channels, constituted by the nuclear and electronic degrees of freedom of the atoms at the interface. Aiming at an improved future harvesting of energy,…
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Towards chemically accurate simulation of molecule-surface reactions
This perspective addresses four challenges facing theorists whose aim is to make quantitatively accurate predictions for reactions of molecules on metal surfaces, and suggests ways of meeting these challenges, focusing on dissociative chemisorption reactions of H2, N2, and CH4.
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Teaching
Research projects for students of the University of Leiden and other Dutch Universities are often available at the MacBio group. The research lines are also described in the Research section. For details of specific projects contact the supervisor (Ubbink, Dame, Boyle, Jeuken or Wentink).
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Metals, energy and geopolitics, a complex mix
Lecture, Tuesday Talks: Science Insights
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Gas-surface reaction dynamics and surface science
The local ordering of atoms at the surface of a metallic particle determines its catalytic activity and selectivity. As energy systems of the future will be based on efficient catalytic conversion of small molecules in closed cycles, we study how structural effects of catalysts can be used to our ad…
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Research
Research at the THEOR group is comprised of the following research themes:
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The future belongs to the youth, but perhaps not in Netherlands
Three professors voice their concerns about a vulnerable group in our society: children who come into contact with youth care.
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Medical Delta professor Lioe-Fee de Geus-Oei: 'We work together for the patient'
Professor of Radiology Lioe-Fee de Geus-Oei was already a professor at LUMC and the University of Twente. As Medical Delta professor, she has now also been appointed at Delft University of Technology. 'Talking with people from other disciplines always makes me immensely humble, because they look at…
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Why early detection of bone disorders matters
As a professor, Natasha Appelman-Dijkstra understands better than anyone how important it is to recognise bone and mineral conditions at an early stage. She emphasises the importance of flexibility and collaboration for better care, groundbreaking research and strong education.
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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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From supernovae to galaxy clusters: observing the chemical enrichment in the hot intra-cluster medium
Promotor: Jelle S. Kaastra Co-promotor: Jelle de Plaa
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Semi-empirical approach to the simulation of molecule-surface reaction dynamics
Catalysis is of extreme relevance in the production of everyday materials and plays a central role in many aspects of our life.
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From atoms to the cosmos: exploring the cosmic web beyond collisional ionisation equilibrium
Nowadays, it is well known that hydrogen and helium (and small traces of lithium and beryllium) were created shortly after the Big Bang, while the heavier elements are created in the cores of stars at different evolutionary stages. When these stars explode as supernovae, they expel metals synthesised…
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Non-equilibrium chemistry and cooling in simulations of galaxy formation
Promotor: J. Schaye
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Economies of Destruction
How the systematic destruction of valuables created value in Bronze Age Europe, c. 2300-500 BC
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Applications for DNA-encapsulated silver clusters in physics, biology and medicine
We use DNA strands to stabilize few-atom silver clusters, which show unique optical and chemical properties. This thesis involves the study of these constructs for various applications.
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Surface-structure dependencies in catalytic reactions
Promotor: M.T.M. Koper, Co-Promotor: L.B.F. Juurlink
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Influence of the electrode-electrolyte interface on electrochemical CO2 reduction reaction and hydrogen evolution reaction
The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.
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Highly Accurate Simulations and Benchmarking of Molecule-Surface Reactions
Heterogeneous catalyzed processes are highly significant to the chemical industry. Dissociative chemisorption (DC) of molecules on surfaces is always considered as a step with a high degree of rate control for heterogeneous catalysis.
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Galaxy formation traced by heavy element pollution
Galaxies form and evolve through close interaction with their surroundings. As a result, the heavy elements ('metals') that are synthesized in stars, are found both inside and outside galaxies.
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Charlemagne's Workshops
An Investigation into the role of copper-alloy craft production in the early medieval economy of northwest Europe.
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Electrons found to flow like water
Science Magazine has published three back-to-back papers on an important discovery in solid state physics. Leiden physicist Jan Zaanen wrote a Perspective article on the subject in the same issue of 4 March.
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Bachelor Projects
Bachelor projects are available in
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Electron Paramagnetic Resonance Approaches to Study Biologically Relevant Reactions: Examples from Amyloid Aggregation to Enzymes
This thesis explores how electron paramagnetic resonance (EPR) spectroscopy can be used to investigate key biochemical processes.
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Adsorption and catalysis on Pt and Pd monolayer-modified Pt single crystal electrodes
The focus throughout this thesis will be on gathering fundamental studies of the detailed structure and composition of the electrode/electrolyte interface effect on the rate and mechanism of key electrocatalytic reactions.
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Sacrificial Landscapes
Cultural biographies of persons, objects and 'natural' places in the Bronze Age of the Southern Netherlands, c. 2300-600 BC.