25 search results for “chemie” in the Public website
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Improving therapeutic vaccines
Chemist Sander van Kasteren aims to accurately map how our immune system responds to vaccines, particularly those aimed at curing diseases like cancer and chronic viral infections. The goal is to use this knowledge to improve vaccine design. An ERC Consolidation Grant will provide him with the funding…
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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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Bioorthogonal Chemistry: Applications in Activity-Based Protein Profiling
The close interaction between organic chemi stry and biology goes back to the late 18th century, when the modern natural sciences began to take shape. After synthetic organic chemistry arose as a discipline, organic chemists almost immediately began to pursue the synthesis of naturally occurring compounds,…
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Colloidal LEGO with peptides
Kros
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Biophysical Organic Chemistry
The long term goal of the Biophysical Organic Chemistry/SSNMR group, headed by Prof. Huub de Groot, is to reach an understanding of structure, dynamics and functional mechanisms of membrane proteins and self-organized biological assemblies and to translate this knowledge into new concepts for nano-devices,…
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A cobalt cage for proteins
A new paramagnetic probe has been synthesized and applied to proteins.
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Gold nano-antennas reveal single molecules’ electrochemical properties
Individual molecules are extremely hard to see through feeble fluorescence. Tiny gold nanorods serve as new antennas to intensify their signal 500 times. Publication on 24 February in Angewandte Chemie.
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Two Vidi's at Sterrewacht
Jordy Bouwman and future Sterrewachter Reinout van Weeren have been awarded a Vidi subsidy to set up or expand their own line of research.
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Redox catalysis for a sustainable energy infrastructure
The main research theme in the group of Dennis Hetterscheid is to understand and mimic bioinorganic multi-electron processes that are relevant to our future energy infrastructure. Reduction of protons generates hydrogen that can be used as a chemical fuel. Alternatively to gaseous hydrogen, the reduction…
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Operando research in heterogeneous catalysis
The nanoscale structure of a catalyst under reaction conditions determines its activity, selectivity, and stability. For the production of sustainable energy and materials, new catalysts are needed. By understanding the structure-activity relationships of catalysts under reaction conditions, insight…
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TA grant for Irene Groot
Chemist Irene Groot has been awarded a TA grant. Together with Shell, Leiden Probe Microscopy, DSM Resolve and Utrecht University, Groot will conduct research into catalysts for the production of raw materials and fuels.
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New research shows the limitations of coordination in chemistry
A common assumption in chemistry is that the coordination number of a catalyst's surface determines the reactivity of the reaction it catalyses. Strikingly, Leiden chemists have now proven that this is not true for nature’s most simple chemical reaction: the dissociation of hydrogen. The researchers…
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Supramolecular and Biomaterials Chemistry
Alexander Kros studies supramolecular systems in a biological environment. The unifying theme between the projects in my lab is specific molecular recognition, i.e. the intermolecular interaction between complementary molecules with high affinity and selectivity. Studying, imitating and dissecting processes…
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Fundamental and translational medical biochemistry
Through metabolism, biochemical processes give rise to the complexity of life. Acquired and inborn errors in metabolism underlie many diseases occurring in man. The challenge for present day medical biochemistry is to find, and integrate, pieces of information at molecular, cell and organismal level…
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Paradigm-shifting theory highlights the importance of substrate flexibility in enzymatic reactions
Leiden chemists have proposed a new model for enzymatic reactions, in which the flexibility of the substrate is much more important than previously thought. Their results are paradigm-shifting and could have major implications for drug research and enzyme engineering. Publication in Angewandte Chemi…
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Dick Stufkens Prijs 2010 awarded to chemist Niels Elders
The Dick Stufkens Prijs 2010 is awarded to Dr. Niels Elders. The prize is given by the Holland Research School of Molecular Chemistry for his Ph.D. thesis “Multicomponent Approaches to Molecular Diversity & Complexity”, in which he describes the development of various new multi-component synthetic procedures…
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A chemical connection that affects your immune system
A group of chemists, that includes Sander van Kasteren and Hermen Overkleeft, has discovered that azides, a certain type of chemical compound, can determine whether or not T cells respond to or ignore a vaccine. Their discovery is set to be published in Angewandte Chemie.
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Chemical firms in the Netherlands regularly break safety rules
The Dutch chemical industry is regularly in breach of safety legislation. These are the findings of longitudinal research by the Department of Criminology at Leiden University, in collaboration with the Department of Criminology at VU Amsterdam. Over the past ten years, the roughly 400 companies to…
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Leiden chemists discover exceptionally efficient catalyst for hydrogen peroxide production
Research of the Leiden Institute of Chemistry into the development of a sustainable fuel cell has accidentally resulted in an exceptionally efficient catalyst for the production of hydrogen peroxide. The catalyst, discovered by Dennis Hetterscheid and PhD candidate Michiel Langerman, may lead to a more…
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Real-time solid-state NMR spectroscopy inside living cells
Researchers from the Leiden Institute of Chemistry show proof of principle that live-cell structural changes and metabolic processes can be followed in real time with NMR spectroscopy. They performed their study on photosynthetic green algae that are metabolically flexible and can sustain energy generation…
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This is how physicists contribute to the energy transition
Studying surfaces of solid materials: it may not seem relevant to energy consumption, but it is. Marcel Rost studies how platinum electrodes wear out. Those electrodes are a crucial component in the fuel cells of hydrogen-powered cars. ‘We need to make the switch from fossil fuel energy to hydrogen.…
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New antibiotic named after Leiden
Increasing resistance and a lack of new antibiotics are a serious problem for public health. Against this background, Gilles van Wezel of the Institute of Biology Leiden is looking for new medicines. Together with former PhD student Changsheng Wu and colleagues he discovered the special antibiotic lugdunomycin,…
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Six million boost to search for new antibiotics
Edith Schippers, Minister of Health, will be investing six million euros over the coming four years to boost research on new antibiotics. The programme will be set up by several different parties, including the Leiden Centre for Antimicrobial Research.
- Combined UHV-STM and AP-XPS study of Selective Catalytic Reduction (SCR) of NOx over a VOx/TiO2 based catalyst
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Joan van der Waals colloquium
The Joan Van der Waals colloquium is an ongoing bi-weekly lecture series.