279 search results for “liquid chromatography” in the Public website
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Polymers in the Liver: Metabolism and Regulation
Metabolic diseases are a burden on the European population and health care system. It is increasingly recognised that individual differences with respect to history, lifestyle, and genetic make-up affect disease progression and treatment response. A Systems Medicine approach, based on computational…
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Virus-host metabolic interactions: using metabolomics to probe oxidative stress, inflammation and systemic immunity
Promotores: T. Hankemeier; R. Berger, Co-promotor: R.J. Vreeken
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Liquid footprints
The present study explores the role of water in the ancient Roman city of Ostia.In antiquity, Ostia was situated at the intersection of the Tiber River and the Mediterranean Sea, and acted as one of the harbour cities of Rome for several centuries.This study investigates how water was acquired, used,…
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Liquid Footprints
Water, Urbanism, and Sustainability in Roman Ostia
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Quan/Qual analysis of drugs and metabolites in biological matrices
Can we develop a generic method for Quan/Qual analysis of small molecule drugs, their metabolites and endogenous metabolites in (pre-)clinical samples?
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Systems pharmacology of the endocannabinoid system
In this thesis, a system pharmacology approach, integrating metabolomics, pharmacology and chemical biology, was applied to understand and modulate the endocannabinoid system across different model systems (cells, zebrafish, mice and humans).
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Unraveling proteoform complexity by native Liquid chromatography - mass spectrometry
PhD defence
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Lipids as therapeutic targets for barrier repair in skin diseases
The skin is our natural barrier and lipids are a key part of this barrier. In the outer skin layer, the stratum corneum (SC), lipids form a densely organized structure dependent on the composition of these lipids.
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Topology and Geometry in Chiral Liquids
We study the interplay of topology and geometry with chirality for several passive and active systems, employing both analytical and numerical methods.
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The development of the Proto-Indo-European syllabic liquids in Greek
Ancient Greek was spoken in a large number of different dialects. Although we do not find direct evidence for syllabic liquids in any of our sources, comparative evidence shows that these sounds must have been present in Proto-Greek, and that they were retained until comparatively recently in the prehistory…
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The early stress response of jasmonic acid in cell suspension cultures of Catharanthus roseus
In order to gain a better insight into the basis of the rapid jasmonic acid (JA)-mediated stress response, an integrated approach using a targeted high-resolution mass spectrometry-based (HRMS) platform, was conducted to monitor the metabolism of JA using the model system of cell suspension cultures…
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Towards an ab-axis giant proximity effect using ionic liquid gating
In this Thesis, novel charge induction mechanisms of ionic liquids are treated, tested and experimented on complex oxides, in particular cuprates.
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Development of novel metabolomics and systems pharmacology methods
We are developing biology-driven platforms to measure metabolites based on liquid chromatography-mass spectrometry (LC-MS), gas chromatography-MS (GC-MS), and capillary electrophoresis-MS (CE-MS).
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Morphogenesis and heterogeneity in liquid-grown streptomyces cultures
The filamentous bacteria Streptomyces are widespread inhabitants of terrestrial soils.
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Screening of animal venoms for antimicrobial compounds
Can animal venoms yield novel antimicrobial peptides?
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Systems pharmacology of the endocannabinoid system
What are the functions of the endocannabinoid system?
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Relative quantification of proteasome activity by activity-based protein profiling and LC-MS/MS
Activity-based protein profiling (ABPP) is a functional proteomics technique for directly monitoring the expression of active enzymes in cell extracts and living cells. The technique relies on irreversible inhibitors equipped with reactive groups (warheads) that covalently attach to the active site…
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Transvac2
TRANSVAC is a collaborative infrastructure project funded by the European Commission (EC), initially under the 7th Framework Programme (FP7) and currently under Horizon 2020. The project is a joint effort of leading European groups working in the field of vaccine development, and is coordinated by…
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It's just a phase: High-contrast imaging with patterned liquid-crystal phase plates to facilitate characterization of exoplanets
This thesis aims to demonstrate how the achromatic nature and design flexibility of liquid-crystal optics can be used to improve high-contrast imaging instruments to facilitate detailed exoplanet characterization.
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Electrocatalytic CO2 reduction toward liquid fuels : on heterogeneous electrocatalysts and heterogenized molecular catalysts
With the energy transition toward a renewable energy supply and a CO2-neutral economy, electrification of the energy system is rising in importance, which leads to the challenge of long-term storage of renewable electricity.
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Development of Comprehensive and High-throughput metabolomics techniques
A major goal of ABS research is to overcome one of the major bottle-necks in metabolomic research: the lack of a high-throughput infrastructure in which thousands of samples can be processed in a standardized and cost-effective way (max. a few tens of Euro’s per sample for a full metabolome profile).…
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PROTEOMINING: a novel proteomics-based pipeline for drug and enzyme discovery in filamentous actinomycetes
Can a new proteomics workflow be developed to link genes and gene clusters to bioactive molecules, identify novel compounds and enhance the production in the Streptomyces lividans enzyme?
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Sheathless capillary electrophoresis-mass spectrometry as a new approach for analyzing the polar metabolome
Metabolomicshas emerged as an important discipline to study molecular and cellular processes in living cells and organisms with the ultimate aim to obtain an answer to a given biological/clinical question.
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New theory on liquid crystals with high symmetry
LCD screens use liquid crystals which have a high degree of order, even though they form a fluid. A new theory maps out the interplay between order, temperature and symmetry. Publication in Physical Review X.
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Happy anniversary, liquid helium
111 years ago, Heike Kamerlingh Onnis liquified helium for the first time, a tour the force that netted him the Nobel prize. It took a laboratory of a size rarely seen. Now, ultracold helium has become a commodity for physics research. In Wolfgang Löffler's lab, it is ready at hand thanks to a coffee…
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Conductance and gating effects at sputtered oxide interfaces
This thesis explores interfacial conductance and electric field-effects in LaAlO3/SrTiO3 heterostructures.
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Insolvency fraud strategy can benefit from guidelines for liquidators
The liquidator is, according to the law, the initial designated person to signal and address irregularities in insolvencies. But when tackling fraud costs more than it generates, what does that mean for the liquidator’s course of action? And which factors obstruct liquidators in addressing these irregularities?…
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Robert Verpoorte
Science
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Raindrops on the roof-technique reveals new quantum liquid
Koen Bastiaans and his colleagues discovered a new quantum liquid unlike anything ever seen. They did it by using a technique that can be compared to listening to the sound of raindrops falling on a roof. Publication in Science 29 October.
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Young Hae Choi
Science
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Gauge theory and nematic order : the rich landscape of orientational phase transition
Promotor: J. Zaanen
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High-throughput quantification and unambiguous identification for metabolomics
The challenge of achieving fast quantification in metabolomics is the presence of severe matrix effects during the MS analysis of complex samples.
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New facility for production of liquid helium and new low-vibration lab
After 2 years of planning, designing, testing and adjusting, the brand-new low-vibration physics lab at the new Gorlaeus Building of the Science Campus is working like a charm and ready to make its mark in the world of science. Also, the renewed facility for the production of liquid helium is all do…
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On the geometry of fracture and frustration
Promotor: Prof.dr. M.L. van Hecke, Co-Promotor: Prof. dr. V. Vitelli
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Natural deep eutectic solvents: A new green solvent from nature
- Which metabolites could be components of NADES? - How can we prove the presence of NADES in nature? - What are the roles of NADES in nature? - How to apply NADES in life sciences?
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David Doelman
Science
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CE-MS for metabolomics: advancing performance and detection sensitivity
The major and ultimate aim of metabolomics is to obtain an answer to a specific biological or clinical question.
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On the geometry of demixing: A study of lipid phase separation on curved surfaces
Like a mixture of oil and water, lipid membranes separate into two liquid phases.
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Joachim Kopka
PhD at the Max Planck Institute of Molecular Plant Physiology, Golm – Germany
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Cryogenics Department
The Cryogenics Department has a liquid helium production unit and an automatic liquid nitrogen filling plant.
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Applications of Natural Deep Eutectic Solvents to Extraction and Preservation of Biomolecules
The recently introduced nature-originated deep eutectic solvents, so-called natural deep eutectic solvents (NADES) are considered as truly green solvents, which composed of natural ingredients found abundantly in organisms.
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Cross-talk between stagnation points in flow and orientation
Publication in Proceedings of the National Academy of Sciences.
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Soft condensed matter
What are the mysteries behind soft condensed matter?
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Alternative delivery of a thermostable inactivated polio vaccine
In the near future oral polio vaccine (OPV) will be replaced by inactivated polio vaccine (IPV) as part of the eradication program of polio. For that reason, there is a need for substantial amount of safe and more affordable IPV for low-income countries. Bioneedles, which are biodegradable mini-implants,…
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How Bio-questionable are the Different Recombinant Human Erythropoietin Copy Products in Thailand?
The high prevalence of pure red cell aplasia in Thailand has been associated with the sharp increase in number of recombinant human erythropoietin (rhEPO) copy products, based on a classical generic regulatory pathway, which have entered the market.
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Electrocatalytic CO2 Reduction toward Liquid Fuels
PhD defence
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Biologics Formulation
A major challenge in the formulation of biopharmaceuticals is to overcome their inherent instability during production, storage, transportation, handling and administration. We are studying underlying mechanisms of degradation of biopharmaceuticals (including therapeutic proteins, vaccines and advanced…
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Photothermal studies of single molecules and gold nanoparticles: vapor nanobubbles and conjugated polymers
Promotor: M.A.G.J. Orrit
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Granular Flows: Fluidization and Anisotropy
Promotor: Prof.dr. M.L. van Hecke