De wereldwijde ongelijkheid neemt steeds meer toe. Het is belangrijk om de oorzaken te weten zodat de toenemende ongelijkheid bestreden kan worden.

This thesis represents a comprehensive investigation into the control of cancer stemness and metastatic initiation using a combination of advanced zebrafish xenograft models and in vitro assays.

Hoe verschillen talen in het gebruik van toonhoogte om woorden en zinnen betekenis te geven, en hoe beïnvloedt dit de herkenning van woorden en interpretatie?

Advanced mass spectrometry of glycosphingolipids takes the central stage in this thesis. Investigations focus on characterization of glycosphingolipid metabolism in health and disease with emphasis to the detection and accurate quantitation of known and so far unknown glycosphingolipids and closely…

Due to their central physiological roles in living organisms, retaining beta-glycosidases have been the subject of tremendous research efforts to examine their structure/function relation using numerous biophysical and biochemical approaches.

Promotor: Prof.dr. T. Hankemeier, Co-promotor: Theo Reijmers

Promotor: J.G.E.M. Fraaije, Co-Promotor: A. Kros

Neurodegenerative diseases, including Parkinson’s disease (PD), are increasing in prevalence due to the aging population. Despite extensive study, these diseases are still not fully understood and the lack of personalised treatment options that can target the cause of the diseases, rather than the symptoms,…

Promotor: Prof.dr. T. Hankemeier

Marine sponges are important members of reef ecosystems, as they play ecological roles that are essential for the health of the reef.

Glycoside hydrolases (glycosidases/GHs) are widely abundant enzymes in all kingdoms of life and are important biocatalysts that catalyze the hydrolysis of glycosidic linkages in oligo/polysaccharides, glycoproteins and glycolipids with tremendous efficiency

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.

Het LIACS organiseert verschillende lezingenseries, zoals het LCN2 Seminars en de SAILS Lunch Time-seminars.

This dissertation focused on computational methods based on first principles calculations using the Density Functional Theory (DFT) framework. Emphasis was laid on affordable methods that can provide a tradeoff between computational expense and accuracy.

Fonologie is de studie van spraakklanken en de verschillen daarin tussen talen. Hieronder vallen onderwerpen als klankvariaties, klankcombinaties en spraakverwerving.

Lezing

Kleinere computerchips, smallere cameraatjes; ze worden steeds moeilijker om te maken. Maar wat als de bouwstenen zichzelf opbouwen? Natuurkundige Daniela Kraft bedacht een methode om deeltjes aan te sturen in samenklonteren. Publicatie in ACS Nano.

Op een ogenschijnlijk gewone kubus verschijnt onder druk een patroon van hollingen en bollingen. Er is nu een methode ontwikkeld om zulke 3 dimensionale structuren te ontwerpen en maken met eenvoudige bouwstenen. Publicatie in Nature.

In this thesis an activity-based probe was discovered that could visualize the activity of PLAATs. With an optimized gel-based ABPP assay in hand, screening of a compound library led to the discovery of alpha-ketoamides as a hit for PLAAT3.

Climate change is a challenge for both current and future generations. New biological resources have to be developed in order to meet the demand for energy as well as the demand for food.

Promotor: J. van der Greef; Co-promotor: E. van Wijk, M. Wang

Promotores: Prof.dr. H.S. Overkleeft, Prof.dr. G.A. van der Marel

During the development of the (human) body from a single fertilized egg, organs and structures must form. The development and growth of biological forms is called morphogenesis.

This thesis addresses the urgent challenge of antimicrobial resistance through the discovery and modification of natural product antibiotics.

De verklaring van natuurkundige Scott Waitukaitis voor de gillende en stuiterende hydrogelballetjes is door verschillende media overgenomen. Zo was Waitukaitis te zien op het RTL 4 journaal van maandag 24 juli.

Biological polymers, including proteins and the genome, undergo folding processes crucial for their proper functioning. Even slight changes in the folding structure of these biopolymers can have significant implications, leading to the development of various pathological conditions, such as neurodegenerative…

Mechanical interactions between cells and their environment play an important role in many biological processes.

Gold nanorods are biocompatible nanoparticles that present an excellent two-photon signal that can be used to get high spatial resolution inside living cells. Gold nanorods are photostable and therefore can be followed inside cells for long time, with possible applications as trackers in live cells.

In this thesis I describe the results of Pulsed Interleaved Excitation and Fluorescence (Cross) Correlation Spectroscopy (PIE-F(C)CS) combined with single-pair Förster Resonance Energy Transfer (spFRET) used to study dynamics in single nucleosomes, which depends on subtle differences in the length of…

Aan de hand van de karakteristieke aspecten van een beeld kunnen bepaalde computers ons vertellen wat het beeld laat zien. Ze kunnen dit leren op dezelfde manier als jonge kinderen beelden kunnen leren herkennen. Het verder verbeteren van deze technieken opent de weg naar een hele reeks nieuwe toepassingen.…

This thesis focuses on the design and synthesis of activity-based probes and inhibitors targeting enzymes involved in the degradation of specific plant glycans.

Lipid signaling is an essential biological event/process in a plethora of pathophysiological conditions. The underlying idea of this thesis is that many of the roles and the complex interplay of the individual signaling lipids in inflammatory processes and related conditions in health and disease is…

There is a need for alternative methods to replace, reduce and refine (3R) animal experimentation. Combining experimental data from high-throughput in vitro studies with in silico modeling is a promising approach to unravel the effect of chemicals on living cells and to gain a better understanding of…

Promotor: G. A. van der Marel, Co-promotor: D. V. Filippov

Promotores: H.S. Overkleeft, G.A. van der Marel, Co-Promotor: J.D.C. Codee

This Thesis describes the design, synthesis and evaluation as glycoprocessing enzyme inhibitors of focused libraries of iminosugars.

Promotor: A. Doelman, Co-promotores: P.J.A. van Heijster; A. Zagaris

De tweejarige masteropleiding Physics wordt aangeboden door het Leids Instituut voor Onderzoek in de Natuurkunde. De opleiding is theoretisch en experimenteel. Er is ruime aandacht voor onderzoekstraining. Ook bieden we veel keuzemogelijkheden en op maat gemaakte, individuele studieprogramma’s.

The thesis focuses on synthesis strategies in oligosaccharide campaigns, and the influence of protecting groups.

We use DNA strands to stabilize few-atom silver clusters, which show unique optical and chemical properties. This thesis involves the study of these constructs for various applications.

Because thin systems can deform along the thickness with relative ease, the interplay between surface mechanics and geometry plays a fundamental role in sculpting their three-dimensional shape.

Drug-target binding kinetics determine the time course of the central event in pharmacotherapy: Drug-target interaction.

This dissertation aims to advance understanding of amoeboid single cell migration under the influence of changing physicochemical environmental properties. The particular focus is on the relatively unknown influence of differing physical properties in the extracellular environment, such as the migratory…

In the traditional theory of linear elasticity, superposition dictates that the response of a material does not depend on the sequence of the applied mechanical actuations.

Detecting nanoscopic objects plays an important role in nanoscience in particular, in the rapidly growing field of nanobiology. The forebear to modern super-resolution microscopy for single molecule investigation, is fluorescence microscopy.

Promotor: Prof.dr. E.J.J. Groenen, Co-Promotor: M. Huber

Metabolomics is a powerful tool that can provide a comprehensive insight into the complexity of human biology and the pathophysiology of diseases. By analyzing the metabolome, which refers to the complete set of small (endogenous) molecules (with a mass <1500 Da) present within a given biological system,…

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…

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding.

Promotor: M.A.G.J. Orrit