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…

Carbohydrates, or sugars, are the most diverse and most abundant biomolecules known. However, the isolation of carbohydrate samples in sufficient amounts and purity is often impractical or even impossible, so the chemical synthesis of glycosides becomes relevant. The glycosylation reaction, in which…

Promotor: Prof.dr. E. Bouwman

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.

Metal-based prodrugs based on ruthenium(II) polypyridyl complexes have proven to be very suitable for application in both photodynamic therapy (PDT) and photo-activated chemotherapy (PACT).

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.

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…

Dit proefschrift gaat over theoretische oppervlakte chemie binnen het veld van de heterogene katalyse.

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.

Supramolecular polymers are class of materials that are formed by non-covalent interactions such as hydrogen bonding, π-π interactions, electrostatic interactions and the hydrophobic effect.

This Thesis describes the synthesis of D-alanylated ribitol-based wall teichoic acids from S. aureus to probe their interaction with immune-binding partners.

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,…

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.

The aim of this thesis is to study cell-cell interactions and the development of an assay to explore and quantify the exchange of membrane compounds.

Wat als je één enkele cel in real time zou kunnen zien ‘eten’? Dat kan helpen om ziektes zoals kanker beter te begrijpen. Promovendus Yixuan Wang ontwikkelde een chemische tool die oplicht en zichtbaar maakt hoe levende cellen voedingsstoffen opnemen.

Quantum computing is an emerging technology, which holds the potential to simulate complex quantum systems beyond the reach of classical numerical methods.Despite recent formidable advancements in quantum hardware, constructing a quantum computer capable of performing useful calculations remains challenging.In…

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.

The redox-conversion reaction of metal-disulfide and metal-thiolate complexes are important, as they may shed light on electron-transfer reactions that often occur in Nature.

In the last decade, the redox interconversion between metal thiolate and disulfide compounds has been extensively investigated for copper, but not for other transition metal ions.

In the current global context, there is a pressing need to address sustainable energy supplies to safeguard our Planet and its ecosystems. The choices made by human society have a significant impact on genetic evolution and climate.

The electrochemical oxygen reduction reaction (ORR) is an essential half-reaction for the utilization of hydrogen as a sustainable fuel, via the conversion of hydrogen to electrons and protons facilitated by the ORR. In the most common fuel cells, the ORR is requires high loadings of non-abundant platinum…

With increasing carbon dioxide levels in the atmosphere and their detrimental effect on the global climate, modern society needs to push for more renewable energy sources. Storing widely accessible and abundant solar energy in chemical bonds in the form of molecular fuel via artificial photosynthesis…

In photoactivated chemotherapy (PACT), a biologically active compound is caged by a light-cleavable protecting group.

The cellular metabolism of immune cells constitutes an important part of their proper function and activation. Using T cells as an example, this phenomenon is highlighted by the metabolic reprogramming that occurs in these cells upon activation.

This thesis presents the first synthetic peptides ADP-ribosylated on serine, threonine, tyrosine, arginine and cysteine.

Cyclic peptides are investigated as a platform to induce different orientations between various ligands.

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…

This thesis introduces the concept of

In this thesis, we consider various (electro)chemical phenomena at surfaces and nanoparticles and their underlying atomistic processes, which we studied using first-principles methods such as density functional theory.

Despite being the second largest transmembrane protein family after GPCRs, the SLC superfamily has only gained significant attention in early drug development over the past decade.

This thesis advance our understanding and the application of molecular catalysts relevant to the reduction of oxygen as well as reduction of nitrite.

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.

Prof. A.G.G.M. (Xander) Tielens wordt bij 1 januari bij de Faculteit der Wiskunde en Natuurwetenschappen benoemd tot hoogleraar ‘Physics and Chemistry of the Interstellar Medium’. Tielens werkt momenteel als senior onderzoeker bij Ames in Moffett Field, Californië. Ames is een onderdeel van NASA. Daarnaast…

This thesis describes the synthesis and biochemical evaluation of a variety of cyclophellitol based activity-based probes and inhibitors targeting various endo- and exo-acting retaining glycosidases. In the last two decades a variety of probes and inhibitors for (hemi)cellulose degrading enzymes have…

This thesis describes the use of an activity-based proteomics method to study the endocannabinoid system.

Synthesis and application of chemical biology tools to study immunomodulatory signaling lipids.

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.

In this work, we illustrate unconventional approaches towards the fabrication of edge functionalized graphene nanostructures and bidimensional architectures in polymeric and metallic supports, with an outlook towards molecular sensing devices.

Large parts of the research described in this Thesis aims at the development of oligopeptide-masked toxins and their in situ immunoproteasome-mediated activation.

Less than 1 in 10 drug candidates that enter phase 1 clinical trials actually gets approved for human use.

Promotor: Prof.dr. E. Bouwman, Co-promotor: S. Bonnet

Promotor: H.S. Overkleeft, Co-promotor: M. van der Stelt

Metal complexes and 2D materials like graphene were combined to produce structures that can function as sensors.