536 search results for “metallic nanoparticles” in the Public website
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Lithic Technology, Social Agency and Cultural Interaction in the Bronze Age Aegean
LiTechAe: Percussive stone tools related to stone masonry techniques seen through experimentation and use-wear analysis.
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Bachelor Projects
Bachelor projects are available in
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Insights from scanning tunneling microscopy experiments into correlated electron systems
This thesis presents insights from our study of various correlated electron systems with a scanning tunneling microscope (STM). In ordinary metals, electron-electron interactions exist, but get substantially screened due to the sheer number of electrons.
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A completely normal practice
In Bronze Age Europe, an enormous amount of metalwork was buried in the ground and never retrieved.
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Design, synthesis and application of paramagnetic probes for protein structure studies
The main subject of this thesis is the design and synthesis of paramagnetic molecules for protein studies with NMR and EPR spectroscopy.
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Unconventional fabrication of 2D nanostructures and graphene edges
In this work, we illustrate unconventional approaches towards the fabrication of edge functionalized graphene nanostructures and bidimensional architectures in polymeric and metallic supports, with an outlook towards molecular sensing devices.
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Magnetism and magnetization dynamics in thin film ferromagnets
Promotores: Prof.dr. J. Aarts, Prof.dr. J.M. van Ruitenbeek
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Accurate Probabilities for Highly Activated Reaction of Polyatomic Molecules on Surfaces Using a High-Dimensional Neural Network Potential: CHD3
An accurate description of reactive scattering of molecules on metal surfaces often requires the modeling of energy transfer between the molecule and the surface phonons. Although ab initio molecular dynamics (AIMD) can describe this energy transfer, AIMD is at present untractable for reactions with…
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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.
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X-ray spectroscopy of merging galaxy clusters
This thesis focuses on the X-ray spectral analysis of merging galaxy clusters and the plasma code development for future high-resolution X-ray spectroscopy observations.
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Ab Initio Molecular Dynamics Calculations versus Quantum-State-Resolved Experiments on CHD3 + Pt(111): New Insights into a Prototypical Gas–Surface
The dissociative chemisorption of methane on metal surfaces is of fundamental and practical interest, being a rate-limiting step in the steam reforming process. The reaction is best modeled with quantum dynamics calculations, but these are currently not guaranteed to produce accurate results because…
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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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Artificial metallo-proteins for photocatalytic water splitting: stability and activity in artificial photosynthesis
Climate change is one of the largest challenges faced by humanity. To combat this research into alternatives to fossil fuels is ongoing. Dihydrogen is considered a good alternative fuel, since its burning only forms water.
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Chemical reactivity of O2, CO and CO2 on Cu surfaces
Despite the history of studies on methanol formation from CO2, the dominant elementary reaction steps that constitute the chemical mechanism for this catalyzed process are not determined.
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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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Cathodic corrosion: devastating but predictable
An indian stepwell on a nanoscale. That is what postdoc Nakkiran Arulmozhi calls the pattern he saw when he corroded a special kind of platinum crystal. The unique images show the destructiveness of the process, but also show how predictable it is.
- Jan van Ruitenbeek Lab - Atomic and Molecular Conductors
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Research lines
Current research at the Skin Barrier and Vaccination group.
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Pushing the envelope of nuclear magnetic resonance spectroscopy for paramagnetic systems
A network combining 9 academic research groups and 4 collaborating industrial companies will train the next generation of PhD students and post-doctoral researchers, in developing and applying novel experimental and theoretical methods in the NMR spectroscopy of systems containing paramagnetic metals.…
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The evolution of Chinese industrial CO2 emissions 2000–2050: A review and meta-analysis of historical drivers, projections and policy goals
The emissions of the Chinese industrial sector alone comprise 24.1% of global emissions (7.8 GtCyr−1 in 2015). This makes Chinese industrial emissions of unique national and international relevance in climate policy. This study reports a literature survey that quantitatively describes the evolution…
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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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Teaching
Research training projects in the MCBIM group - Bachelor and master students of all chemistry related studies are more than welcome to take part in our research activities. We have various research projects, all in one way or another involving transition metal ions. Daily supervision in the laboratory…
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Fighting tumours with light
Chemotherapy that does nothing until you irradiate it with light. Sylvestre Bonnet receives a Vici grant of 1.5 million euros for the development of this treatment. The Leiden chemist wants to build a new molecule to fight tumours that are at the time still difficult to treat.
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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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Research
An overview of the research at the Biologics Formulation group
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NanoFeed
Do selenium nanoparticles in fish food cause subtle alterations in behavior of fish: effect of particles size and concentration?
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C.J. Kok Jury Award for Thesis of the Year
Isotopes on exoplanets, a more efficient memory for data centres or new molecules that work against the Zika virus and HIV. Which PhD candidate has written the most impressive dissertation of 2023? The jury of the C.J. Kok Jury Award faces the challenging task of deciding that. Meet the nominees of…
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Synthesis and application of glycans unique to S. Mansoni
Schistosomiasis is an acute and chronic disease caused by blood dwelling parasitic trematodes of the genus Schistosoma, and it is classified as the second most socioeconomically devastating parasitic disease, second only to malaria.
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Vaccine delivery
Vaccination via the skin or the mucosae
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Key publications
Key publications of the Skin Barrier and Vaccination group.
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Design of dissolvable microneedles for intradermal TB vaccination
Tuberculosis is an infectious disease which is spreaded through the air. It is caused by Mycobacterium tuberculosis and it led 1.7 million people to death in 2016. This mortarlity rate is concentrated in developing countries such as Indonesia, Philippines, Pakistan, and South Africa. These numbers make…
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Scalable organic solvent free supercritical fluid spray drying process for producing dry protein formulations
In this study, we evaluated the influence of supercritical carbon dioxide (scCO2) spray drying conditions, in the absence of organic solvent, on the ability to produce dry protein/trehalose formulations at 1:10 and 1:4 (w/w) ratios.
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Rational Design of Athero-Protective Vaccines; Novel Vaccine Formulations and Alternative Routes of Administration
Atherosclerosis is a chronic inflammatory disease affecting millions of people world-wide.
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Alumni
Former PhD, Bachelor and Master students of the Van Exter Lab
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Postdoc: Reactive scattering with electronic friction
Science, Leiden Institute of Chemistry (LIC)
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Surface Reactivity of Activated CO2 Selective use of energy in splitting CO2
Juurlink
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Van Marum Colloquium: Surface chemistry studies for plasma applications
Lecture
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Colloquium: Polymeric heterogeneous water oxidation catalysts with molecular metal sites
Lecture
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€10.6 million for innovative toolboxes to tackle brain cancer
Researchers at the Universities of Amsterdam (Uva) and Leiden together with the Netherlands Cancer Institute and Oncode Institute have received a €10,6 million ERC Synergy Grant to develop innovative therapeutic approaches to target glioblastoma. This is a deadly primary brain tumour for which no curing…
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International Resource Panel
Contributions to the UNEP international panel for sustainable resource management
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Chemically Accurate Simulation of a Prototypical Surface Reaction: H-2 Dissociation on Cu(111)
Methods for accurately computing the interaction of molecules with metal surfaces are critical to understanding and thereby improving heterogeneous catalysis.
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Holographic Duality in Condensed Matter Physics
The physics of black holes appears to be as far removed from the physics of electrons in metals as it can be.
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Towards superconducting spintronics with RuO2 and CrO2 nanowires
CrO2, a half-metal ferromagnet, has shown great promise for superconducting spintronics applications for nearly two decades.
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Professor Lars Jeuken wants to use bacteria for sustainable fuel
On 1 August, Lars Jeuken started work as Professor of Biophysical Chemistry at the Leiden Institute of Chemistry (LIC). His research is at the intersection of biology and chemistry, but also involves physics and nanotechnology. Jeuken: ‘By linking nanoparticles to proteins and bacteria, we want to convert…
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Development of a Transgenic Mouse Model to Study the Immunogenicity of Recombinant Human Insulin
Mouse models are commonly used to assess the immunogenicity of therapeutic proteins and to investigate the immunological processes leading to antidrug antibodies. The aim of this work was to develop a transgenic (TG) Balb/c mouse model for evaluating the immunogenicity of recombinant human insulin (insulin)…
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RESTORING T-CELL HOMEOSTASIS BY IN VIVO MANIPULATION OF DENDRITIC CELLS
The loss of T-cell homeostasis and tolerance towards self-antigens is the underlying cause of autoimmune and inflammatory diseases like atherosclerosis, rheumatoid arthritis or type I diabetes. Traditionally, the treatment of these diseases consisted on systemic immune suppression, which can entail…
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Vaccination and Targeted Therapy Using Liposomes; Opportunities for Treatment of Atherosclerosis and Cancer
This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.
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What is the effect of long-term exposure to engineered nanomaterials (ENMS)?
Engineered nanomaterials (ENMs) are widely used, and nanotechnological innovations grow with rapid pace. Studies on nanotoxicology have demonstrated that chemical toxicology as well as particle toxicology should be accounted for in predicting the safety of ENMs.
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Mechanisms and consequences of horizontal gene transfer in cell wall-deficient cells of Kitasatospora viridifaciens
The bacterial cell wall is a nearly universal structure that offers protection and gives the cell its shape. However, environmental stressors, such as cell wall-targeting antibiotics and hyperosmotic conditions, can induce bacteria to shift to a wall-deficient state. It is unknown whether the lack of…
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Student projects
Are you looking for a research project? We have projects available for motivated 6–9-month internship students with particular interest in organic/polymer synthesis, formulation development, gene delivery, protein delivery, and the preliminairy in vitro screening of drug delivery platforms. Students…