1,591 search results for “synthesis he molecular” in the Public website
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Chemistry (MSc)
As a student in the MSc Chemistry programme offered by the Leiden Institute of Chemistry (LIC) you will focus your studies on one of the two main research areas of the LIC. Students in the research area Chemical Biology will study fundamental biological and biomedical problems to understand physiological…
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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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Cancer pathogenesis and therapy
With cancer, a person’s body cells grow uncontrollably. Putting together a detailed picture of how this comes about makes it possible to develop efficient therapies. Researchers at the Leiden University Medical Centre (LUMC) and Leiden University are working together to gain a better understanding…
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About the programme
If you are interested in Life Science and you are looking for a programme with ample opportunities to put together your own study path, our Life Science and Technology programme is the right choice. The programme focuses on societal problems at the molecular and cellular level.
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Alan Kai HassenFaculty of Science
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Lost in Chemical Space, Found in Data
Developing new medicines is one of modern science's most significant hurdles, a process marked by high costs, long timelines, and frequent failures of promising candidates.
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Ukraine
This is an Erasmus+ International Credit Mobility project of the Faculty of Science with the Taras Shevchenko National University of Kyiv.
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Photocleavable activity-based acid glucosylceramidase probes
Lysosomal acid glucosylceramidase (GBA1) is a lysosomal enzyme that degrades glucolipids with its main substrate being glucosylceramide (GlcCer). Defects in the GBA1 gene lead to glycosphingolipidosis Gaucher disease (GD), in which the hydrolysis of GlcCer is impaired and therefore, it accumulates in…
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Triblock polypept(o)ides for siRNA delivery: unique polymeric designs for versatile carrier systems
Utilizing the polymeric platform of polypept(o)ides, this thesis describes synthesis and investigation of novel triblock copolymers to obtain carrier systems with multiple compartments for efficient siRNA delivery. Although the individual microstructure of nanoparticles differs depending on the polymeric…
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Chemical biology studies on retaining exo-β-glucosidases
The research described in this thesis centered on retaining exo-β-glucosidases implicated in health and disease, in particular the human inherited lysosomal storage disorder, Gaucher disease (GD).
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Fluorescence Polarization Activity-Based Protein Profiling on Retaining Glycosidases
Glycosidases are important enzymes in the turnover of polysaccharides and glycoconjugates, and are involved in a range of human pathologies including genetic disorders such as Gaucher and Pompe disease, but also in various cancers.
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Stereoelectronic and conformational effects in oxocarbenium, iminium and iminosugar ammonium ions
Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée
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Glycosyl Cations in Glycosylation Reactions
This thesis describes the use of a combined approach of computational and experimental techniques to gain novel insights to understand the glycosylation reaction and its reactive intermediates.
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Inhibitors and activity-based probes for β-D-glucuronidases, heparanases and β-L-arabinofuranosidases
Glycosidases (GHs) are enzymes responsible for the degradation of carbohydrates and play many roles in human health and pathophysiology. Often, abnormal levels of glycosidase activity are markedly linked to human pathologies.
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Unravelling Glycosylation Reaction Mechanisms
A key step in the synthesis of oligosaccharides and glycoconjugates is the formation of the glycosidic bond.
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Biosyn Talks
PhD students at Bio-organic Synthesis are invited to present their work during the weekly Monday Morning Biosyn Talks.
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Novel Activity-Based Probes for Broad-Spectrum Profiling of Retaining β-Exoglucosidases In Situ and In Vivo
A high-end label: Cyclophellitol aziridine-type activity-based probes allow for ultra-sensitive visualization of mammalian β-glucosidases (GBA1, GBA2, GBA3, and LPH) as well as several non-mammalian β-glucosidases (see picture). These probes offer new ways to study β-exoglucosidases, and configurational…
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Triple Bioorthogonal Ligation Strategy for Simultaneous Labeling of Multiple Enzymatic Activities
Three at the same time: a ligation strategy combining tetrazine–norbornene cycloaddition, Staudinger–Bertozzi ligation, and copper(I)-catalyzed click reaction was used to label the three catalytic activities of the proteasome simultaneously in a single experiment. The orthogonality of the three ligation…
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Beyond the Born-Oppenheimer Static Surface Model for Molecule- Surface Reactions
Several techniques are explored for going beyond the born-oppenheimer static surface model for molecule-surface reactions.
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Understanding the Surface Structure of Catalysts and 2D Materials at the Atomic Scale
The work in this thesis demonstrates how to obtain an atomic-scale picture of a diverse set of complex surface structures observed using STM, under disparate conditions.
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Collaborative and effective drug development
There are many complex links in the chain that provides patients with new drugs: from fundamental science, to clinical tests, to production. The entire chain can be found in Leiden. Leiden University, the Leiden University Medical Center (LUMC) and the businesses at the Leiden Bio Science Park (LBSP)…
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Research
Research at the Catalysis and Surface Chemistry group is comprised of the following research themes:
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Galaxies and the structures in which they are embedded
Researchers at Leiden Observatory study the fundamental physics that creates structure in the Universe. These processes collect matter into galaxies and gas into stars. With the use of powerful telescopes and advanced calculations and computer simulations, Leiden astronomers seek to understand the origin,…
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Dame Lab / Chromatin Organization & Dynamics
Throughout all domains of life, from bacteria and archaea to eukaryotes, genomes adopt well-organized three-dimensional structures that can change in space and time to accommodate preferred transcriptional programs for environmental adaptation, the maintenance of cellular identity and differentiation…
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Olivier BéquignonFaculty of Science
- About this minor
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Exploring the Versatility of Human β-Glucosidases and Related Glycosylated Metabolites with Novel Chemical Tools
Thesis focused on uncovering the underlying mechanisms of the lysosomal storage disorders Gaucher's disease using chemical tools, biochemical assays and lipidomics.
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Marcel SchaafFaculty of Science
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Towards molecular complexity in birth places of stars: Formaldehyde formation from carbon atoms reacting with water ice
Scientists at Leiden University (Netherlands), Stuttgart University (Germany) and Ural Federal University (Russia) have successfully put forward a novel, computed, reaction mechanism that was experimentally tested and show that formaldehyde is formed at much earlier stages in the birthplaces of stars…
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Chemical tools to monitor and control human proteasome activities
Promotores: H.S. Overkleeft; G.A. van der Marel Co-Promotor: B.I. Florea
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Tales from the European borderlands. A comparative analysis of perspectives, expectations and fears of managing cross-border mobility in Europe
To what extent are there differences between countries in and outside the European Union and the Schengen area in the level of crimmigration, the merger between migration control and crime control, and to what extent can these differences be explained by the way in which state and non-state actors in…
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To the Euphrates and Beyond
The wide-ranging interests of the Dutch archeologist Maurits van Loon -prehistory, art history, and ancient history - are reflected in these papers, which commemorate his 30 years of archeological research in the Near East
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Bioactive Molecules
All living systems are assembled from nature’s repertoire of small, medium, and large organic molecules. This theme focuses on the study, discovery and development of novel bioactive compounds obtained from biodiversity. We aim for new insights into the role of these molecules in the natural environment,…
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GMP facility for innovative drugs (KFT-J10 / IGFL)
The GMP Facility facilitates development and production of Advanced Therapy Medicinal Products (ATMPs) and chemical (peptide) synthesis.
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Targeting of antigen-presenting cells with mannosylated conjugates
This thesis describes the development of a variety of mannosylated conjugates. Antigen presenting cells bear mannoside recognizing receptors that actively transport antigen into the cell. This thesis exploits this feature for the development of improved vaccines.
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Glucocorticoids in zebrafish
A novel in vivo model system for studies on glucocorticoid resistance
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Why Leiden University?
The Leiden Institute of Chemistry (LIC) offers a unique tailor-made programme in Chemistry. You can customize the programme to your own interests and ambitions with the help of your own personal mentor. Your study will focus on either Chemical Biology or Energy & Sustainability. During the Master's…
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Theory
Many important topics in computer science, such as the correctness of software, the efficiency of algorithms and the modeling of complicated systems, depend on sound theoretical underpinnings. In the Theory group, we study these fundamental building blocks and develop verification methods to prove system…
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The colours of the extreme universe
This thesis presents pioneering work on the panchromatic emission of some of the most luminous galaxies in the early Universe: star forming galaxies and active galactic nuclei.
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What's in the diet? DNA-based analysis for qualitative and quantitative assessment of animal diet
Animal diet studies are critical for understanding ecological processes such as trophic interactions, energy flow, and nutrient cycling. By examining what animals consume, ecologists gain insights into species specialization, predator-prey relationships, and ecosystem management.
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Explorations of Water Oxidation Catalysis in Explicit Solvent
In the search for sustainable energy solutions, the idea of artificial photosynthesis has been proposed as an approach with which to use water and sunlight to produce hydrogen.
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About the programme
An attractive feature of the MSc Chemistry programme at Leiden University is the great flexibility of the study programme, allowing students to put together a tailor-made programme following their personal interests. Within the limits set by the programme, students can make their own choices and adjust…
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Towards the development of synthetic vaccines against tuberculosis
The research described in this Thesis was aimed at designing and synthesizing nature-inspired compounds as part of TB vaccine discovery.
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Photocatalytic approaches for carbon-heteroatom bond construction
Photocatalysis has emerged as a powerful tool for enabling challenging transformations in organic synthesis. This thesis explores the development of several photocatalytic reactions designed to form carbon-heteroatom bonds from less-functionalized precursors.
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Memory before Modernity
This synthesis brings together strands developed in the four studies, sets out memories of the Revolt and presents the Low Countries as a case study.
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Lipid bilayers decorated with photosensitive ruthenium complexes
Promotor: E. Bouwman, Co-promotor: S. Bonnet
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Ice and Gas in Protostellar Clouds and Planet-forming Disks
This thesis takes steps toward understanding the interaction between gas-phase and solid-state molecules in star- and planet-forming regions.
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Host-Microbe Interactions in Microbial Sciences
Microbial Sciences' contribution to the Host-Microbe Interactions research theme is to investigate how beneficial or disease-causing microbes associate and interact with their host.
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Delivery of Biotherapeutics
The Delivery of Biotherapeutics research group is led by Prof. Matthias Barz and focusses on the synthesis and characterization of polypept(o)ids and their application in nanomedicine to improve existing therapies or enable novel diagnostic or therapeutic approaches.
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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).