Een overzicht van awards en prijzen die in 2019 zijn toegekend aan onze medewerkers en studenten, maar ook bijzondere benoemingen aan de Universiteit Leiden en andere instellingen.

Een overzicht van awards en prijzen die in 2021 zijn toegekend aan onze medewerkers en studenten, maar ook bijzondere benoemingen aan de Universiteit Leiden en andere instellingen.

Promotores:Th.J.C. van Berkel, M. van Eck

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

Like a mixture of oil and water, lipid membranes separate into two liquid phases.

The thesis is about the study of shell evolution of the Hydrocenidae of the genus Georissa. This thesis started with a general overview on the evolutionary process of animals due to ecological changes.

The aim of this thesis is to develop and study a robust and adaptable scaffold for supramolecular polymer self-assembly in water.

Cardiovascular diseases are still a major concern for the global health.

Promotie

Ewine van Dishoeck is volop in de nationale en internationale media gekomen met haar prestigieuze Kavli-prijs. Ze won 1 miljoen dollar voor haar baanbrekende werk naar het ontstaan van sterren en planeten en naar buitenaards leven.

Sterrenkundige Alvaro Hacar heeft een Veni-subsidie binnengehaald voor zijn onderzoek ORION-4D over de geboorte van sterren.

In de zoektocht naar planeten buiten ons eigen zonnestelsel hebben astronomen van de Europese Zuidelijke Sterrenwacht (ESO) een interessante ontdekking gedaan: op 35 miljoen lichtjaar van de aarde ontdekten ze vijf veelbelovende exoplaneten. ‘Dit is weer een nieuwe mijlpaal,’ zegt expert Ignas Snellen…

De James Webb Space Telescope komt met zijn eerste foto van een exoplaneet: een planeet die draait om een andere ster dan onze zon. Astronomen zijn verheugd over het kiekje, dat planeet HIP 65426 b laat zien in niet eerder waargenomen golflengten. Ignas Snellen vertelt erover aan De Volkskrant.

In Duitsland, Amerika en zelfs in Vietnam: overal ter wereld werd de Leidse ontdekking gedeeld van de geboorte van twee planeten. Astronoom Sebastiaan Haffert wist met zijn team voor het eerst meerdere planeten in wording vast te leggen en publiceerde zijn bevindingen in Nature Astronomy. Een unieke…

Wie wel eens in een heldere nacht naar boven heeft gestaard, begrijpt waarom de mensheid gefascineerd is door het heelal. Dit rijk geïllustreerde boek voedt die fascinatie. In een toegankelijke stijl schetst Harm Habing de geschiedenis van de sterrenkunde.

Een overzicht van awards en prijzen die in 2020 zijn toegekend aan onze medewerkers en studenten, maar ook bijzondere benoemingen aan de Universiteit Leiden en andere instellingen.

Laboratory, observation and modeling work on the dissociation of polycyclic aromatic hydrocarbons in interstellar environments and the formation of new molecular species through the fragmentation process.

This thesis presents the anharmonic infrared spectra of a series of polycyclic aromatic hydrocarbons. Comparisons and characterizations are made based on high-resolution low-temperature gas-phase experimental spectra.

Wetenschappers bij de Leidse Sterrewacht onderzoeken de fundamenteel natuurkundige verschijnselen die voor structuur in het heelal zorgen. Deze processen brengen materie bijeen tot sterrenstelsels en gas bijeen tot sterren. Met behulp van krachtige telescopen en geavanceerde berekeningen en computersimulaties…

Nieuwe krachtige telescopen, zoals de European Extremely Large Telescope, zullen de atmosferen van aardachtige planeten gaan ontrafelen met behulp van nieuwe waarneemmethoden zoals onder ontwikkeling in Leiden. Zuurstof kan dan mogelijk als eerste bewijs dienen voor buitenaards leven.

Promotor: G.A. van der Marel, Co-promotor: D.C. Codée

Despite the fact that gold nanoparticles (GNPs) are one of the most studied nanoparticles, there is still a necessity for new approaches allowing for effective protective coating to enable wider use of GNPs in biomedical applications.

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.

Voltammetry plays a crucial role in modern scientific research by offering valuable insights into the electrochemical properties of materials, with wide-ranging applications in fields such as materials science, energy storage, corrosion studies, and sensor development.

Cardiovascular syndromes are the major cause of death in Western societies.

This thesis describes the development and optimization of the first molecular tools to study the enzyme PLA2G4E.

Mechanical forces are known to play an important role in bacterial colonies. In this dissertation, we study the self-organization at various stages of growing bacterial colonies, and focus on the mechanical effects of cell growth.

Promotor: V. Vitelli, Co-promotor: J. Paulose

Catharanthus roseus (Madagascar periwinkle) produces valuable monoterpenoid indole alkaloids (MIAs) such as vincristine and vinblastine, crucial for cancer treatment.

Agrobacterium tumefaciens, a gram-negative plant pathogen belonging to the family Rhizobiaceae, is the causative agent of crown gall disease, which can affect many plant species including agronomically important ones.

My PhD project studies how the temporally sequential Hox gene expression is regulated during head-tail patterning of the frog embryo.

According to the amyloid cascade hypothesis, accumulation of beta-amyloid (Aβ) peptides initiates the pathological cascade in Alzheimer's disease (AD).

The AT-Hook Nuclear Localized 15 (AHL15) gene belongs to a plant-specific gene family of DNA-binding proteins. Overexpression of AHL15 in Arabidopsis thaliana delays developmental phase transitions whereas its loss of function causes a slight acceleration.

Nucleoid associated proteins maintain the architecture of the bacterial chromosome and regulate gene expression, hinting that their role as transcription factors may involve local three-dimensional chromosome re-modelling.

This thesis investigates reactive interfaces in surface science across three domains: heterogeneous catalysis, environmental nanoplastics, and two-dimensional materials.

This thesis focuses on developing wafer-scale two-dimensional (2D) materials by combining synthesis, transfer, characterization, and device integration of graphene, hexagonal boron nitride (h-BN), and BN-doped amorphous carbon.

Particles are omnipresent in biopharmaceutical products. In protein-based therapeutics such particles are generally associated with impurities, either derived from the drug product itself (e.g. protein aggregates), or from extrinsic contaminations (e.g. cellulose fibers).

This work describes several studies into the electroreduction of carbon dioxide (CO2RR), both regarding mechanistical aspects and catalyst stability considerations. Mechanistic insights into carbon-carbon bond formation on a silver catalyst are described in Ch 2, were we find an acetaldehyde-like surface…

The name ‘Jambi flora’ refers to fossil plants found as part of a rock formation from the Early Permian (296 million years old), located in the Jambi Province of Sumatra, Indonesia.

During embryonic growth, cells proliferate, differentiate, and collectively migrate to form different tissues at the right position and time in the body.

In this dissertation iron-based homogeneous catalysts were synthesized, characterized and investigated for water oxidation activity.

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).

Every organisms in the tree of life faces the same challenge: the length of its DNA exceeds the volume of the cell it needs to fit in. Several strategies have evolved to solve this problem, one of them being the expression of proteins that bind and organize the DNA.

The research presented in this thesis makes use of small molecules (as H2 , D2 and O2 ) on well-defined single crystal surfaces (flat Pt(111), flat Cu(211) and curved Pt(111)) to elucidate the role of surface structure and degrees of freedom in the reactant in specific surface reactions.

Promotor: Prof.dr. M. Ubbink

The plant hormone auxin plays a central role in the growth and development of plants. Auxin acts in a concentration dependent manner and polar cell-to-cell transport of this hormone determines its distribution in the tissues of plants. This polar auxin transport is mediated by several families of auxin…

The genetic information of all living organisms is contained in their DNA. Cells modify the degree of DNA compaction by epigenetics, which largely determines what genes are read out and which genes are transcriptionally silent.

Promotores: Prof.dr. B.R. Katzy, Prof.dr. K. Sailer (Munich University)