1,376 zoekresultaten voor “synthesis he biology” in de Publieke website
-
Squaramide-based interpenetrated networks for load-bearing applications
This thesis explores squaramide-based supramolecular polymers and hydrogels, enhancing their mechanical strength for 3D cell culture.
-
Tweerichtingsverkeer tussen mens en biodiversiteit
Inaugurale rede
-
Coiled-coil biomaterials for biological applications
This dissertation contains four works during my PhD. Different biomaterials have been designed based on coiled-coil peptides. These biomaterials have a range of applications, inclusing drug delivery, cell sorting to cell-cell fusion.
-
Pyrrole-based photoswitchable anion receptors
The main goal of this thesis is to achieve advanced control of binding properties in bis-pyrrolic and macrocyclic pyrrolic receptors by light.
-
Functionalizing monolayer graphene as a proton-selective membrane for direct methanol fuel cells
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.
-
Natural and non-natural factors influencing Alzheimer´s Aβ
Promotor: Prof.dr. J.P. Abrahams
-
Witnessing the Process of Bacterial Cell Death: Novel Antimicrobials and Their Mechanisms of Action
This thesis describes the antimicrobial discovery strategy developed in our group, the den Hertog Group at the Hubrecht Institute. It includes a cultivation-based screening approach for novel antimicrobial agents from the source of fungi, and a bacterial time-lapse imaging approach for antimicrobial…
-
Human Evolution
This multidisciplinary minor provides students with knowledge on how and why humans became the way they are. The minor focuses on the evolution of the species Homo sapiens from other hominin lineages and animal ancestors, and on the various factors shaping this process. Not only is human evolution of…
-
Chemistry and Biotechnology for Sustainability
If mankind wants to survive into the 22nd century, we will need to change the way we live drastically. The human impact on our planet is everywhere, we are changing the atmosphere, the oceans and the land, leading to global warming, climate change, loss of biodiversity and pervasive pollution. There…
-
Studying through the summer?
Leiden University offers a unique range of summer courses where you can broaden or deepen your knowledge or share your expertise with fellow students. The choice of academic courses is very diverse, ranging from Law, Big Data, Languages and Linguistics to Maths and Natural Sciences, Biology, Biomedical…
-
Transglycosylation of N-acylethanolamines
N-acylethanolamines (NAEs), including N-arachidonoylethanolamine (anandamide, AEA), N-palmitoylethanolamine (PEA) and N-oleoylethanolamine (OEA), are signaling lipids that play an important role in different physiological process.
-
Phase separation in lipid-based nanoparticles: exploring the nano-bio interface
This doctoral thesis is an effort to understand how lipid phase-separation induced by diacylglycerol analogues in lipid-based nanoparticles affects their in vivo behavior, leading to specific nanoparticle-protein communications and selective cell targeting.
-
Crossing boundaries
Celebrating 20 years of environmental research in Cagayan Valley and Sierra Madre
-
Management implications for invertebrate assemblages in the Midwest American agricultural landscape
Promotor: G.R. de Snoo Co-promotor: C.J.M. Musters
-
Squaramide-based supramolecular materials for 3D cell culture applications
A new type of tripodal squaramide-based supramolecular hydrogels is developed and studied.
- Onderzoeksfaciliteiten
-
Nobelprijs Scheikunde voor 3D-beelden van moleculen
De Nobelprijs voor Scheikunde 2017 is uitgereikt aan Jacques Dubochet, Richard Henderson en Joachim Frank, voor hun ontwikkeling van de cryo-elektronenmicroscopie. Met deze techniek kunnen biomoleculen in 3D in beeld gebracht worden, legt hoogleraar Ultrastructuurbiologie Ariane Briegel uit.
-
Nagemaakte moleculen verraden verstopmethode van bacteriën
Dankzij bepaalde vet-suikermoleculen kunnen onder meer leprabacteriën zich verstoppen voor ons immuunsysteem. Hoe precies, is niet helemaal duidelijk. Hessel van Dijk, die op 13 oktober promoveerde, maakte de moleculen na en hielp daarmee een stukje van de puzzel op te lossen. Van Dijks proefschrift…
-
Chemische gereedschapkist in de strijd tegen kanker
Chemische stoffen maken, om biologische vragen mee op te lossen. Wouter van der Linden vat even kort de chemische biologie samen. Daaraan levert hij zijn bijdrage met stoffen die uiteindelijk behulpzaam zijn in de strijd tegen kanker: ‘Dus niet de medicijnen zelf, maar een chemische gereedschapskist…
-
Ad IJzerman wint prestigieuze Nauta Pharmacochemistry Award
Hoogleraar Farmacochemie Ad IJzerman heeft de Nauta Award gewonnen voor zijn jarenlange onderzoek naar signaalverwerkende eiwitten die interessant zijn voor de ontwikkeling van nieuwe medicijnen: G protein-coupled receptors. De prijs wordt elke twee jaar uitgereikt voor verdiensten in de farmacochemie…
-
Duurzame toekomst
Hoe kunnen we onze maatschappij zo inrichten dat de wereld leefbaar blijft voor onszelf en al het andere leven om ons heen? Aan dat vraagstuk werken Leidse wetenschappers samen vanuit allerlei disciplines, van biologie tot datawetenschap en van milieueconomie tot archeologie.
-
Dennis HetterscheidWiskunde en Natuurwetenschappen
d.g.h.hetterscheid@chem.leidenuniv.nl | +31 71 527 4545
-
Stofwisselingsenzym zichtbaar gemaakt in levend weefsel
Deze week in Nature Chemistry & Biology: onderzoekers van de Universiteit Leiden en het AMC hebben een methode ontwikkeld om het enzym GBA1 zichtbaar te maken in levende cellen. Patiënten met de ziekte van Gaucher hebben een tekort aan dit enzym.
-
Vier ERC-grants voor Leidse wetenschappers
Vier Leidse wetenschappers hebben een consolidator grant gekregen van maximaal 2 miljoen euro van de European Research Council (ERC). Ze doen onderzoek naar uiteenlopende onderwerpen, waaronder genderstereotypering bij exacte vakken en het maken van suikermoleculen.
-
Communicatie over onzekerheden
Om goed onderbouwde besluiten over complexe onderwerpen zoals het klimaat, recht en gezondheid te kunnen nemen, zijn wetenschappelijke resultaten van groot belang. Maar wetenschappelijke resultaten bevatten altijd een mate van onzekerheid. Binnen het onderzoek Communicatie over onzekerheden wordt onderzocht…
-
Beeldverwerking en bio-informatica
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.…
-
Computer vision en beeldverwerking
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.…
-
In Memoriam: Stefan Landsberger (1955-2024)
My colleagues and I have been devastated to learn that our good colleague and friend Stefan Landsberger (born 1955) passed away unexpectedly, on 26 September 2024. Stefan had been a fixture of China Studies in the Netherlands, where he had been Associate Professor of contemporary Chinese History and…
-
Metabolomics study of blood vessels-on-chip model
Endothelial dysfunction and microvascular diseases are key drivers of cardiovascular disease, the world's leading cause of death.
-
Squaramide-based supramolecular polymers
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.
-
Biophysical feedbacks between seagrasses and hydrodynamics in relation to grazing, water quality and spatial heterogeneity
Consequences for sediment stability and seston trapping
-
Optical properties of DNA-hosted silver clusters
Promotor: D. Bouwmeester, Co-promotor: D. Kraft
-
Quantifying the toxicity of mixtures of metals and metal-based nanoparticles to higher plants
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
-
Breeding birds on organic and conventional arable farms
Promotor: G.R. de Snoo
-
Coiled-coil mediated liposomal fusion: Asymmetric behaving peptide fusogens
Membrane fusion is a vital process in living organisms and is mediated by zipper-like proteins.
-
Chemical Similarity: Structuring Risk and Hazard Assessment
At the moment, over 350.000 chemicals are registered worldwide for production and use. Their application, however, may harm human health and the environment.
-
Making the invisible visible: paramagnetic NMR and the transient protein complex
Promotor: Prof.dr. M. Ubbink
-
Discovery of selective diacylglycerol lipase β inhibitors
Diacylglycerol lipases (DAGLα and DAGLβ) are responsible for the biosynthesis of the endocannabinoid 2-arachidonoylglycerol (2-AG) in the brain and peripheral tissues. Selective DAGLβ inhibitors have been proposed as a potential treatment for inflammatory diseases with reduced potential for central…
-
A monograph of the plant genus Trigonostemon Blume
Trigonostemon Blume is a plant genus in the family Euphorbiaceae comprising 59 species.
-
The effects of burying beetle social behaviours on interspecific interactions
This ecological community has long been known to affect host biology, and their diverse roles have been further clarified in recent years following numerous studies of animal:microbiota interactions in diverse systems.
-
Towards Optical Detection of a Single Electron
Single-molecule spectroscopy has become a powerful method for using organic fluorescent molecules in numerous applications.
-
Metabolomic characterization of plant exudates and their correlation with plant defense systems
Plant exudates appeared long time ago in the history line of life in the early Devonian. They are typical saps produced by specialized cells.
-
Towards understanding the toxicity of copper nanoparticles in aquatic ecosystems
Promotores: Prof.dr. W.J.G.M. Peijnenburg & Dr. M.G. Vijver
-
Fire and grazers in the West African savanna
Promotores: H.A. Udo de Haes, H.H.T. Prins, Co-promotor: H.H. de Iongh
-
Mechanical and genetics basis of cellularization and serosal window closure in Tribolium castaneum
The applications of studying the early development of insects range from agriculture to material science.
-
Sparsity-Based Algorithms for Inverse Problems
Inverse problems are problems where we want to estimate the values of certain parameters of a system given observations of the system. Such problems occur in several areas of science and engineering. Inverse problems are often ill-posed, which means that the observations of the system do not uniquely…
-
Fate, accumulation and impact of metallic nanomaterials in the terrestrial environment
The rapidly increasing commercial application of metallic nanoparticles within products will inevitably enhance the amount of NPs being released into soil.
-
Development of new chemical tools to study the cannabinoid receptor type 2
The endocannabinoid receptors CB1R and CB2R are involved in a plethora of processes, and consequently are involved in many pathological conditions. Their wide distribution makes the CBRs both an interesting therapeutic target and hard to study.
-
Figuring rural development: concepts and cases of land use, sustainability and integrative indicators
Promotores: Prof. dr. G.R. (Geert) de Snoo, Dr. E. (Ester) van der Voet
-
Molecular sensors for calcium ion detection via triplet-triplet annihilation upconversion
Cardiovascular diseases (CVDs) are the leading global cause of mortality. Endothelial dysfunction, an early reversible stage of CVD development, is marked by decreased nitric oxide production linked to Ca2+ influx in endothelial cells.