673 zoekresultaten voor “cell chemistry” in de Publieke website
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Oxidation catalysis on Pt and Au: complexity of simple chemistry
Promotor: J.W.M. Frenken Co-Promotores: I.M.N. Groot; L.B.F. Juurlink
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Visual analytics for spatially-resolved omics data at single cell resolution: Methods and Applications
The deeper understanding of an organism's pathology is important for developing treatments. Over centuries of systematic research, clinical researchers have demonstrated that the more information they acquire about the cellular properties and their organisation in the tissue, the better they can understand…
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Towards in-cell structural study of light-harvesting complexes : an investigation with MAS-NMR
Light-Harvesting Complex II (LHCII) is responsible for light absorption and excitation energy transfer in plants and photosynthetic algae, while in high light it undergoes conformational changes by which it quenches excitations to prevent photodamage.
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Protoplanetary disk anatomy: examining the structure and chemistry of planetary birthplaces with simple molecules
This thesis examines the link between simple molecules and the underlying structure and chemistry within protoplanetary disks - the birthplaces of planets.
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Bioorthogonal Labeling Tools to Study Pathogenic Intracellular Bacteria
In this thesis, bioorthogonal chemistry is combined with correlative light-electron microscopy to selectively label and study pathogenic intracellular bacteria within the host immune cell.
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Non-equilibrium chemistry and cooling in simulations of galaxy formation
Promotor: J. Schaye
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Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
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Quest for the cure: Towards Improving Hematopoietic stem cell based lentiviral gene therapy
Promotie
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activity-based protein profiling in chemical biology and medicinal chemistry
Overkleeft
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Cell-autonomous and host-dependent CXCR4 signaling in cancer metastasis: insights from a zebrafish xenograft model
Promotor: A.H. Meijer, Co-promotor: B.E. Snaar-Jagalska
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Quantitative live cell imaging of glucocorticoid receptor dynamics in the nucleus
In this thesis, the focus lies on studying glucocorticoid receptor dynamics in living cells with the aim of understanding how this transcription factor finds its DNA target sites to regulate transcription.
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Synthesis and applications of cell wall glycopolimer fragments from Staphilococci and Enterococci
Carbohydrates are present on the surface of bacteria making them suitable antigen candidates for vaccine development. This thesis deals with the synthesis of two carbohydrate-based components; the capsular polisaccharide of S. aureus type 5 and teichoic acids from staphilococci and enterococci speci…
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Forces and symmetries in cells and tissues
The way organisms develop from the initial single-cellular state to a complex final assembly like the human body, and how the final body is maintained throughout life, is one of the greatest mysteries and it’s understanding one of the biggest scientific challenges.
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Bridging the gap between physics and chemistry in early stages of star formation
A dense region of a gaseous and dusty cloud collapses to form a protostar surrounded by a disk and an envelope. This thesis uses both observations and models to study physical and chemical conditions of these protostellar systems which are likely where planets start to form.
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Bioorthogonal Antigens as Tool for Investigation of Antigen Processing and Presentation
In order to be able to develop effective medicine and treatments to prevent or cure autoimmune diseases or cancer we need to understand the mechanisms how they arise and what drives their course.Unravelling the fundamental molecular mechanisms influencing the onset and course of diseases such as allergies,…
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Imaging of alkyne-functionalized ruthenium complexes for photoactivated chemotherapy
In photoactivated chemotherapy (PACT), a biologically active compound is caged by a light-cleavable protecting group.
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‘Chemistry in Conflict’ voor minister Bussemaker
Onderwijsminister Jet Bussemaker kreeg op de Dag van de Excellentie op 20 juni een exemplaar van ‘Chemistry in Conflict’, een educatief boek over de rol van chemie in oorlogsvoering. Ludo Juurlink, directeur van het Junior Science Lab, overhandigde het boek.
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Coiled-coil biomaterials for biological applications
This dissertation contains four works during my PhD. Different biomaterials have been designed based on coiled-coil peptides. These biomaterials have a range of applications, inclusing drug delivery, cell sorting to cell-cell fusion.
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Lies Bouwman
Wiskunde en Natuurwetenschappen
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Image-based phenotypic screening for breast cancer metastasis drug target discovery
The main aim of this thesis was to unravel the signaling and regulatory networks that drive tumor cell migration during breast cancer metastasis.
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Bioengineering and biophysics of viral hemorrhagic fever
Viral hemorrhagic fever (VHF) is a group of acute diseases caused by highly infectious viruses including Ebola, Lassa, Dengue viruses. Its high mortality rate poses high risk to public health, however, studies on VHF have been hampered due to the non-availability of proper models and incomplete knowledge…
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Cel analyseren op atoomniveau met Cell Observatory
Details kunnen zien van een zieke of gezonde cel, dat is mogelijk met de supermicroscoop van het consortium Cyttron. Niet alleen de microscoop is vernieuwend in zijn soort: ook de vorm waarop de partijen samenwerken past in de huidige tijd. “Toegang tot elkaars techniek, daar draait het om in ons samenwerkingsverband”,…
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Caging ruthenium complexes with non-toxic ligands for photoactivated chemotherapy
The main goal of the research described in this thesis was the development of new photoactivated chemotherapy (PACT) ruthenium(II) complexes bearing a non-toxic photolabile ligand.
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Cell Observatory en labs voorzichtig van start
Met de nodige maatregelen starten onderzoekers hun werkzaamheden in verschillende laboratoria weer deels op. Het Leidse Cell Observatory is één van de plekken waar wetenschappers sinds 11 mei hun labwerk hervatten.
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Cellular Forces: Adhering, Shaping, Sensing and Dividing
Promotor: Prof.dr. T. Schmidt
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Chemical tools to study lipid signaling
Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.
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Thiosugars: reactivity, methodology and applications
Carbohydrates, alongside proteins and nucleic acids, constitute a crucial and versatile family of biomolecules present in all life forms. They manifest as monosaccharides, oligosaccharides, and polysaccharides, covalently bonded to proteins and fats. Carbohydrates are integral to plant and arthropod…
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Transition metal compounds with S/N-functionalized NHC ligands: structures, redox properties and electrocatalytic activity
The research described in this thesis focused on the preparation of S/N functionalized carbene ligands and their transition metal complexes, and the exploration of their application as electrocatalysts for proton reduction.
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Inverse electron demand Diels-Alder pyridazine elimination: synthetic tools for chemical immunology
The inverse electron demand Diels-Alder (IEDDA) pyridazine elimination emerged in 2013 as a new bioorthogonal reaction and constitutes a prime example of what is now known as dissociative bioorthogonal chemistry. The research described in this Thesis aims to develop synthetic strategies which enable…
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The advantages and disadvantages of bioorthogonal proteins
This thesis describes the use of bioorthogonal proteins in immunological settings. It provides an introduction towards the field of protein modification, which was used throughout the thesis for the expression of proteins containing unnatural amino acids.
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Leiden Institute of Chemistry sleept vier NWO ECHO subsidies binnen
Naast de 2 TOP grants heeft het LIC ook nog 4 ECHO’s binnengehaald voor dr. Francesco Buda, professor Gijs van der Marel met Jeroen Codée, dr. Dmitri Filippov en professor Gilles van Wezel.
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Synthetic peptides as tools in chemical immunology
This thesis has described novel synthetic methods to produce a variety of (glyco)peptides and their application in the study of various immunological processes.
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Development of kinase inhibitors and activity-based probes
Promotor: H.S. Overkleeft, J. Neefjes, Co-promotor: M. van der Stelt
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Identification and characterization of developmental genes in streptomyces
Promotor: Prof.dr. G.P. van Wezel
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Superkleine scheidingstechniek op de voorkant van Analytical Chemistry
Onderzoekers van het Leiden/Amsterdam Centre for Drug Research en het Netherlands Metabolomics Centre hebben een van ’s werelds kleinste scheidingstechnieken weten te ontwikkelen door nanofluidische en elektrokinetische effecten te combineren. Vorige week verscheen hun onderzoek op de voorkant van het…
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Marc Koper ontvangt de Netherlands Catalysis and Chemistry Award
Marc Koper heeft de Netherlands Catalysis and Chemistry Award ontvangen tijdens de 20e bijeenkomst van de Netherlands' Catalysis and Chemistry Conference. ‘De ultieme kandidaat voor deze prijs’, zo valt te lezen in een van de aanbevelingsbrieven.
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Biomimetic redox reactions of the Cu(II) μ-thiolate complex
Promotor: Prof.dr. E. Bouwman
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Evani Lachmansingh
Wiskunde en Natuurwetenschappen
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Alexander Kros
Wiskunde en Natuurwetenschappen
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Stress-induced modulation of the innate immune system in cardiovascular disease
Promotor: Prof.dr. J. Kuiper
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Lipid bilayers decorated with photosensitive ruthenium complexes
Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet
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Regulators of integrin α6β4 function
This thesis describes our search to identify and understand possible regulatory mechanisms of integrin α6β4 in cell-matrix adhesion and intracelular signaling.
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Dr. Marcellus Ubbink benoemd tot hoogleraar Protein Chemistry
Dr. Marcellus Ubbink is dit voorjaar bij de Faculteit Wiskunde en Natuurwetenschappen benoemd tot hoogleraar Protein Chemistry. Ubbink kreeg in 2008 een Vici-subsidie van NWO.
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Algorithm selection and configuration for Noisy Intermediate Scale Quantum methods for industrial applications
Quantum hardware comes with a different computing paradigm and new ways to tackle applications. Much effort has to be put into understanding how to leverage this technology to give real-world advantages in areas of interest for industries such as combinatorial optimization or machine learning.
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Noortje Dannenberg
Wiskunde en Natuurwetenschappen
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Osteosarcoma: searching for new treatment options
Promotores: B. van de Water; P. Hogendoorn; J. Bovée Co-Promotor: E.H.J. Danen
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Role of integrin adhesions in cellular mechanotransduction
Promotor: B. vd Water, T. Schmidt, Co-Promotor: E.H.J. Danen
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Scattering and absorption in 2D optics
Scattering of light in the presence of nano-structured materials, i.e. with features in the order of the wavelength of the light or smaller, reveals details of how light interacts with matter at the nanoscale.
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Functions of P38 and ERK kinases in zebrafish early development
Promotor: Prof.dr. H.P. Spaink, Co-promotor: Dr. B.E. Snaar
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High-throughput simulation studies of angiogenesis - Reverse engineering the role of tip cells and pericytes in vascular development
Promotor: Prof.dr. R.M.H. Merks