The applications of studying the early development of insects range from agriculture to material science.

The type-IV secretion system (T4SS) is a machinery able to transfer DNA and proteins between bacteria and in certain cases also to eukaryotic cells.

Pectin is a plant cell wall polysaccharide made of mainly D-galacturonic acid (GA) subunits. The potency of the filamentous fungus Aspergillus niger to naturally secrete high amounts of pectinases to degrade pectin has been utilized for the industrial production of pectinases.

This thesis describes the functional analysis of the Arabidopsis AHL15 gene.

Promotor: Johan Kuiper, Co-promotor: Saskia C.A. de Jager

All life on earth contains DNA, which is used to store biological information. Organisms compact their DNA in order for it to fit inside their cell(s).

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Promotor: H.S. Overkleeft, Co-Promotor: B.I. Florea

This thesis describes the development of a variety of mannosylated conjugates. Antigen presenting cells bear mannoside recognizing receptors that actively transport antigen into the cell. This thesis exploits this feature for the development of improved vaccines.

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Het kanaal waarmee twee celonderdelen materiaal uitwisselen, blijkt zich aan de rand van hun contactoppervlak te vormen, en niet in het midden. Dat ontdekten de Leidse fysische scheikundigen Jelger Risselada en Edgar Blokhuis samen met onderzoekers van de Universiteit van Lausanne in Zwitserland. Ze…

Onderzoeker Mario van der Stelt van onderzoeksinstituut Oncode heeft met zijn medewerkers een nieuw potentieel geneesmiddel (stofnaam: LEI-515) ontdekt dat door chemotherapie veroorzaakte neuropathische pijn onderdrukt.

The function of TLRs in innate immunity has aroused worldwide attention soon after its discovery. Because of the broad functions of TLR2 in innate immunity, the drive for the development of TLR2-targeted vaccines or therapeutic treatments has accelerated in the last decades.

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This dissertation presents a new perspective on the life, work and character of the Dutch physical chemist Jacobus Henricus van ’t Hoff, first recipient of the Nobel Prize in Chemistry, and one of the most important and colourful scientists in Dutch history. The image of Van ’t Hoff that emerges from…

This thesis systematically analyzes the physical-chemistry of lipid-graphene interactions with the major objective of reconciliating the variety of results reported in the literature.

In this thesis unconventional tools based on fluidic interfaces were developed to study the surface and interfacial chemistry of graphene, to characterize the intrinsic properties of graphene, to disentangle the effects of substrate and of the environmental factors, and to improve handling protocols…

In this thesis I highlight the applications of Oxford Nanopore Technologies (ONT) sequencing. This technique is a relatively new approach in the sequencing field, where nanopores are embedded in a membrane, DNA molecules are pulled through nanopores and an electrical current serving as the sequencing…

Na het afronden van de bacheloropleiding volgen verreweg de meeste studenten de masteropleiding. De Universiteit Leiden stimuleert studenten om na hun bacheloropleiding door te gaan met de masteropleiding.

Nierfalen is een serieus probleem omdat nieren zichzelf niet kunnen regenereren na ernstige beschadiging. Een mogelijke oplossing bestaat uit het kunstmatig laten groeien van gezond nierweefsel. Daarvoor moeten wetenschappers eerst de ontwikkeling begrijpen tijdens de allereerste fase, in de foetus.…

The research described in this Thesis was aimed at designing and synthesizing nature-inspired compounds as part of TB vaccine discovery.

Promotores: C.A.M.J.J. van den Hondel, V. Meyer, Co-promotor: A.F.J. Ram

Viral diseases constitute one of the major challenges in modern medicine. Membrane-targeting have broad-spectrum potential and could distinguish viral membranes from the host cell plasma membrane by the difference in membrane curvature.

Promotor: H.J.M. de Groot

Deze tweejarige masteropleiding wordt aangeboden door het Leiden Institute of Chemistry en heeft een focus op technologische en fundamentele kennis en expertise. Tijdens de opleiding doe je onderzoek naar de processen van de levende cel met fundamenteel wetenschappelijke én toegepaste technologie. Je…

As a virtually inexhaustible source, solar energy plays a major role in future global energy scenarios.

Promotor: Prof.dr. H.S. Overkleeft

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Chronische pijn, misselijkheid of braken door chemotherapie. Als je er last van hebt, kan medicinale cannabis een uitkomst zijn. Het nadeel is alleen wel dat patiënten er high van kunnen worden. Leidse onderzoekers van het Oncode Instituut doen daarom onderzoek naar alternatieven waar je dat niet van…

De keten die patiënten voorziet van nieuwe medicijnen, bestaat uit diverse complexe schakels: van fundamentele wetenschap, tot klinische tests, tot productie. Deze hele keten is aanwezig in Leiden. De Universiteit Leiden, het Leids Universitair Medisch Centrum (LUMC) en de bedrijven op het Leiden Bio…

In this thesis, we will utilize embryonic zebrafish tumour models to understand the interaction between engrafted human cancer cells and macrophages from the host, test drug administration modalities and anti-cancer efficacies of newly-developed PDT and PACT compounds, and test a light-triggered liposomal…

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In this thesis, we aim to shed light on the diverse and often opposing roles of integrin α3β1 in cancer.

One of the major limitations in culturing complex tissues or organs is the lack of vascularization in the cultured tissue. Development of a functional capillary bed could overcome this problem.

Pericytes, the mural cells of blood microvessels, are important regulators of vascular morphogenesis and function that have been postulated to mechanically control microvascular diameter through as yet unknown mechanisms.

In this thesis, we focus on novel proteins/mechanisms that regulate integrin-adhesion mediated mechano-transduction.

In this thesis, time-lapse fluorescent microscopy plays a pivotal role in investigating functional materials within living cells as well as the migratory behaviour of neural progenitor cells.

The aim of this thesis is to explore the use of Bioorthogonal Antigens to study the cross-presentation pathway.

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

This thesis focuses on the role of chemokine receptors CXCR3 and CCR2 in the inflammatory process and infection control using the zebrafish model.

This thesis focused on the exploration of monolayer graphene as a membrane in direct methanol fuel cell (DMFC) applications, with improvements achieved through plasma exposure or damage- free chemical functionalization.