179 search results for “organic synthesis” in the Public website
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'Q-wires': Synthesis, electrochemical properties and their application in electro-enzymology
An objective of this research was to achieve direct, well-defined and non-rate-limiting electron transfer between respiratory enzymes and the electrode surface by means of 'Q-wires'.
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Synthesis of Ribitol Phosphate based Wall Teichoic acids
Antibiotic resistance, caused by widespread use of antibiotics, leads to bacterial infections that are difficult, if not impossible, to treat and is a major worldwide health concern.
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1,2-cis-glycosylations: method development and synthesis of complex oligosaccharides
Promotor: G.A. van der Marel, Co-promotor: D.C. Codée
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Breeding birds on organic and conventional arable farms
Promotor: G.R. de Snoo
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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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Self adjuvanting immunopeptides: Design and synthesis
Chapter 2 describes a post-synthetic methodology to introduce a fluorescent label in highly lipophilic, Pam3Cys based conjugates.
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Synthesis of cyclic peptides as bioconjugation platforms
Cyclic peptides are investigated as a platform to induce different orientations between various ligands.
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Novel Protecting Group Strategies in the Synthesis of Oligosaccharides
The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.
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Total Synthesis of Alginate and Zwitterionic Sp1 Oligosaccharides
The work in this thesis has been focused on two subjects. The first is the assembly of alginate oligosaccharides and the generation of building blocks for the enzymatic synthesis of alginate, and the second is the total synthesis of large fragments of the zwitterionic SP1 polysaccharide.
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Iminosugars as glucosylceramide processing enzymes inhibitors: design, synthesis and evaluation
This Thesis describes the design, synthesis and evaluation as glycoprocessing enzyme inhibitors of focused libraries of iminosugars.
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The synthesis of chemical tools for studying sphingolipid metabolism
Sphingolipids are important membrane compounds with a variety of functions. In mammalian cells, different enzymes are involved in the metabolism of sphingolipids, but interruption of this metabolism process leads to different diseases.
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Synthesis of well-defined ADP-Ribosylated biomolecules
Promotor: G. A. van der Marel, Co-promotor: D. V. Filippov
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Synthesis of oligosaccharide libraries from GBS capsular polysaccharides for structure-based selection of vaccine candidates
Glycoconjugate vaccines are composed of microbial poly- or oligosaccharides covalently linked to a carrier protein.
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Chemical synthesis of fragments of galactosaminogalactan and pel polysaccharides
The work described in this Thesis is focused on the assembly of oligosaccharide fragments derived from a fungal polysaccharide, galactosaminogalactan (GAG) and fragments of the exopolysaccharide Pel, generated by Pseudomonas aeruginosa.
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Inhibitor Selectivity: Profiling and Prediction
Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.
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Illuminating N-acylethanolamine biosynthesis with new chemical tools
In this thesis, the discovery and optimization is described of chemical tools to study the N-acylethanolamine (NAE) biosynthetic pathway.
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NMR Faciliteit
Met de NMR faciliteit doen we onderzoek naar de synthese van paramagnetische moleculen om kennis te vergaren over de structuur en dynamiek van eiwitten. Deze kennis kan dienen als basis voor een medicijn dat zich hecht aan een eiwit of voor de ontwikkeling van vaccins. Medicijnontwikkeling is één van…
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Reactivity and Selectivity in Glycosylation Reactions
The glycosylation reaction is a pivotal reaction in creating new and complex oligosaccharides.
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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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A chemical biology approach for targeting of ligand-drug conjugates
Promotores: H.S. Overkleeft, G.A. van der Marel, Co-Promotor: R.G. Boot
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Cyclophellitol and its derivatives: synthesis and application as beta-glycosidase inhibitors
Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel
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Postdoctoral researcher in the field of supramolecular chemistry
Science, Leiden Institute of Chemistry (LIC)
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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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Fully funded Ph.D. position – combinatorial drug discovery
Science, Leiden Academic Centre for Drug Research (LACDR), LACDR PhD Portal
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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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PhD candidate || Identification and characterization of inhibitors of carbohydrate modifying enzymes to generate a new type of anti-bacterial
Science, Leiden Institute of Chemistry (LIC)
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Postdoctoral researcher in Supramolecular Chemistry and Chemical Biology
Science, Leiden Institute of Chemistry (LIC)
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Hermen Overkleeft ontvangt Friedrich Wilhelm Bessel Research Award
Op voordracht van prof.dr. Roderich Suessmuth van de Technische Universiteit van Berlijn ontving prof.dr. Herman Overkleeft de Friedrich Wilhelm Bessel Research Award. Van Overkleeft is in Leiden verbonden aan het Leiden Institute of Chemistry, LIC/Bio-organic Synthesis.
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Dark ice chemistry in interstellar clouds
This thesis is largely an experimental study on the formation of solid-state simple and complex organic molecules in the H2O-rich and CO-rich ice phases of dense interstellar clouds and dark cores.
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PhD student, to identify and characterize inhibitors of carbohydrate modifying enzymes to generate a new type of anti-viral molecule
Science, Leiden Institute of Chemistry (LIC)
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Dirk-Jan Kok
Science
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Hermen Overkleeft wint de 2015 Jeremy Knowles Award
Prof. Hermen Overkleeft is bekroond met de 2015 Jeremy Knowles Award van de Royal Society of Chemistry voor zijn innovatieve en inzichtelijke ontwikkeling van activity-based eiwit probes voor de beeldvorming en de identificatie van enzymen in gezondheid en ziekte. Van Overkleeft is in Leiden verbonden…
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Freek Janssen wint KNCV Farmacochemie prijs voor beste presentatie
Freek Janssen kreeg tijdens de FIGON Dutch Medicine Days 2015 op 5 oktober in Ede de KNCV Farmacochemie prijs voor beste presentatie uitgereikt. Janssen ontvangt deze prijs voor zijn presentatie
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Shining Light on Interstellar Matter
Promotor: H.V.J. Linnartz
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Luminescence and applications of lanthanoid coordination polymers
Promotor: E. Bouwman, Co-Promotor: S. Bonnet
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Willie Peijnenburg
Science
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Estimation and Optimization of the Performance of Polyhedral Process Networks
Promotor: Prof.dr.ir. E. Deprettere
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Dubbel succes bij de EMBL Chemical Biology Conference
Thomas Bakkum en Tom van der Wel, promovendi bij het Leids Instituut voor Chemisch Onderzoek, winnen poster awards bij de EMBL Chemical Biology Conference 2018 in Heidelberg.
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Jeroen Codee
Science
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Dennis Hetterscheid
Science
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Environmental and metabolomic study of antibiotic production by actinomycetes
Promotor: Prof.dr. G.P. van Wezel
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Full Professor in Artificial Intelligence in Medicinal Chemistry
Science
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PhD candidate in the field of supramolecular biomaterials (1.0 fte)
Science, Leiden Institute of Chemistry (LIC)
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Cholesterol metabolism in mouse models of atherosclerosis and adrenal steroidogenesis
Cholesterol influences many pathways, including serving as precursor for adrenal steroidogenesis. Imbalance of cholesterol levels has been implicated in several diseases including cardiovascular diseases and its underlying pathology, atherosclerosis.
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Development of synthetic procedures towards immunostimulating carbohydrates
Promotor: Prof.dr. G.A. van der Marel, Co-Promotor: J.D.C. Codée
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Fully funded Ph.D. position – novel chemical modalities
Science, Leiden Academic Centre for Drug Research (LACDR), LACDR PhD Portal
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Allosteric modulation and ligand binding kinetics at the Kv11.1 channel
Promotor: Prof.dr. A.P. IJzerman, Co-Promotor: L.H. Heitman
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Interstellar Catalysts and the PAH universe
Organic molecules in interstellar space are important as they influence the structure of galaxies and star formations. Studying catalytic processes in space allows us to understand how molecular species are formed and chemically evolved in the interstellar medium and solar system objects.
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CO2 reduction on post-transition metals and their alloys: an industrial approach
This thesis focuses on the synthesis, characterization and performance towards CO2 electroreduction of mono and bi-metallic particles based on p-block metals
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Doorbraak Leidse wetenschappers in bestuderen ziekte van Pompe
Wetenschappers van de Universiteit Leiden hebben een doorbraak bereikt in de bestudering van de erfelijke stofwisselingsziekte van Pompe. Samen met hun Yorkse collega’s ontwierpen zij een molecuul dat zich bindt aan het enzym dat aan de basis staat van het ziekteverloop. De bevindingen zijn gepubliceerd…