50 search results for “cationic corrosion” in the Public website
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Cathodic corrosion
Cathodic corrosion is a relatively unknown phenomenon that can severely etch metallic electrodes at cathodic (negative) potentials.
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Glycosyl Cations in Glycosylation Reactions
This thesis describes the use of a combined approach of computational and experimental techniques to gain novel insights to understand the glycosylation reaction and its reactive intermediates.
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Our technology: Cathodic Corrosion Method (CCM)
Cathodic corrosion for producing nanoparticles was (re)discovered when trying to control the electrochemical etching of a scanning tunneling microscopy (STM) tip.
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Cationic liposomes loaded with a synthetic long Peptide and poly(i:C): a defined adjuvanted vaccine for induction of antigen-specific T cell
For effective cancer immunotherapy by vaccination, co-delivery of tumour antigens and adjuvants to dendritic cells and subsequent activation of antigen-specific cytotoxic T cells (CTLs) is crucial. In this study, a synthetic long peptide (SLP) harbouring the model CTL epitope SIINFEKL was encapsulated…
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Cathodic corrosion: devastating but predictable
An indian stepwell on a nanoscale. That is what postdoc Nakkiran Arulmozhi calls the pattern he saw when he corroded a special kind of platinum crystal. The unique images show the destructiveness of the process, but also show how predictable it is.
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Liposomes as delivery system for allergen-specific immunotherapy
In this book liposomes are explored as delivery system for allergen-specific immunotherapy. Both cationic and anionic formulations are prepared with Bet v 1, one of the allergens in birch pollen.
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Insights into the mechanism of electrocatalytic CO2 reduction and concomitant catalyst degradation pathways
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…
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Liposome-based synthetic long peptide vaccines for cancer immunotherapy
Promotores: Wim Jiskoot; Ferry Ossendorp
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Observing what cannot be observed: computational electrochemistry from carbon to hydrogen
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.
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Adjuvanted nanoparticulate seasonal influenza vaccines
Promotor: Prof.dr. W. Jiskoot, Co-promotor: A. Kros
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Metabolic signatures in nutrition and health: short-term diet response, sexual dimorphism and hormone chronobiology
The power of personalized nutrition lies in being able to conduct clinical research on healthy people while capturing metabolic markers sensitive to the impact of environmental and metabolic stressors (e.g. diet, changing sex hormones and the menstrual cycle).
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Nanoparticles and Microfluidics for Future Tuberculosis Vaccines
Tuberculosis is a major global health problem caused by the Mycobacterium tuberculosis complex, claiming more than a million lives annually.
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The role of 14-3-3 proteins in ion homeostasis in the yeast Saccharomyces cerevisiae
We aim to understand ion homeostasis in the model eukaryote S. cerevisiae.
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Malene NeustrupFaculty of Science
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Influence of the electrode-electrolyte interface on electrochemical CO2 reduction reaction and hydrogen evolution reaction
The goal of this thesis is to understand how interfacial parameters, such as the addition of organic additives, bulk pH or metal cations of the electrolyte, affect the relevant electrocatalytic reactions, i.e. electrochemical CO2 reduction reaction or hydrogen evolution reaction.
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Development of a universal delivery system for tailor-made cancer vaccines
The potential of liposomal cancer vaccines
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Adsorption and catalysis on Pt and Pd monolayer-modified Pt single crystal electrodes
The focus throughout this thesis will be on gathering fundamental studies of the detailed structure and composition of the electrode/electrolyte interface effect on the rate and mechanism of key electrocatalytic reactions.
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Electrochemical and surface studies of the effect of naphthalene-based additives on tin electrodeposition
Tin electrodeposition applications have rapidly evolved in the past 25 years.
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Nanoparticles
Leiden University has developed a radically different method for large scale production of diverse nanoparticles and their alloys.
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Unveiling the electrolyte effects of CO2 electroreduction to CO and H2 evolution from the interfacial pH perspective
The role of the interfacial environment during electrochemical reactions has been increasingly valued, especially for those reactions involving protons or hydroxyl ions.
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Stereoelectronic and conformational effects in oxocarbenium, iminium and iminosugar ammonium ions
Promotor: G.A. van der Marel, Co-promotor: J.D.C. Codée
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Key publications
Key publications of the Biologics Formulation group
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The electrode-electrolyte interface in CO2 reduction and H2 evolution: a multiscale approach
Electrocatalysis allows for storing electricity or converting it into chemical bonds, producing chemical building blocks and fuels using renewable resources.
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Vaccination and Targeted Therapy Using Liposomes; Opportunities for Treatment of Atherosclerosis and Cancer
This thesis focuses on using liposomes in two different treatment strategies; vaccination (or immunotherapy) and delivery of a small molecule, and in two different disease models; cancer and atherosclerosis.
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Destroy, Create, Transform and Sublimate. Laboratory Dissociation Studies on Polycyclic Aromatic Hydrocarbons and Analogues
The aromatic infrared bands (AIBs) seen throughout the interstellar medium (ISM) are generally thought to be carried by polycyclic aromatic hydrocarbons (PAHs) and their nitrogen analogues (PANHs).
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Lipid nanoparticle technology for mRNA delivery: Bridging vaccine applications with fundamental insights into nano-bio interactions
Lipid nanoparticles (LNPs) have enabled the success of mRNA vaccines but remain limited in broader therapeutic use by challenges in delivery efficiency, targeting, and mechanistic understanding.
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Imaging complex model catalysts in action
From surface science towards industrial practice using high-pressure scanning tunneling microscopy.
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The International Civil Service: Redefining Its Independence
On 18 April, Alexandre Tavadian defended the thesis 'The International Civil Service: Redefining Its Independence'. The doctoral research was supervised by Niels Blokker and Brian McGarry.
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Lipid bilayers decorated with photosensitive ruthenium complexes
Promotor: E. Bouwman, Co-promotor: S. Bonnet
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Reactive Copolypept(o)ides as Novel Material for Systemic siRNA Delivery
The aim of the project is the development of polypept(o)ide-based delivery systems to use siRNA as systemic applicated therapeutic agent against e.g. solid tumors
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Operando research in electrochemistry
The central theme of Rik Mom’s research group is to identify what the electrode-electrolyte interface looks like when electrocatalysis is taking place. Using specialized forms of Raman and X-ray spectroscopy, we study the chemical state and bonding environment of the electrode surface and near-surface…
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Sheathless capillary electrophoresis-mass spectrometry as a new approach for analyzing the polar metabolome
Metabolomicshas emerged as an important discipline to study molecular and cellular processes in living cells and organisms with the ultimate aim to obtain an answer to a given biological/clinical question.
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Dick Stufkens Prijs 2019 awarded to electrochemist Thom Hersbach
The Dick Stufkens Prize 2019 for the best PhD thesis of the Holland Research School of Molecular Chemistry (HRSMC) will be awarded to Thom Hersbach. In his thesis, Hersbach presents a thorough analysis of cathodic corrosion. His comprehensive research, on which he graduated with the distinction cum…
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A Century of Hands: Work, Communities, and Identities among the Ayt Khebbach Fossil Artisans in a Moroccan Oasis
Majuka Tanabe defended her thesis on 17 June 2015
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Thomas Hansen wins the KNCV-Backer Prize
Thomas Hansen is the recipient of the 2020 KNCV-Backer Prize for best organic chemistry thesis in the Netherlands.
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Ancient Charm
The aim of ANCIENT CHARM was to develop neutron-imaging techniques and the associated equipment, and help establish neutron imaging as a mainstream archaeological analytical technique. In particular, one of the goals was a new imaging technique which called neutron resonant capture imaging combined…
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Leiden chemists improve electrochemical production of sustainable chemical building blocks
If you could convert CO2 into building blocks for other molecules with the help of electricity, you could make the chemical industry considerably more sustainable. Leiden chemists have unravelled a fundamental part of this process and applied this knowledge in a real device, as they write in Nature…
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Two cum laude distinctions for storing renewable energy
Both Leon Jacobse and Thom Hersbach from Marc Koper's research group obtained their PhDs cum laude. They both investigated changes on the surface of a platinum electrode. Jacobse studied this at a positive voltage, Hersbach at a negative voltage. Platinum has the potential to convert renewable energy…
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A puzzle of sherds
Past objects offer a wealth of information about life in earlier times. Loe Jacobs is an expert in making earthenware objects, using the same methods and means used in earlier times.
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The Secular Outlook
The Secular Outlook describes what moral and political secularism means. It paints the image of a world view in which state and religion are kept well separated.
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Global Health, Innovation and Society (BSc Major of Liberal Arts and Sciences: Global Challenges)
Although the world has made tremendous progress in health, education, sanitation and hygiene, global public health challenges still exist. Disparities in health exist between and within nations as evidenced by inequalities in disease burden, mortality, nutrition and environmental well-being. How does…
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Coats, glasses and gloves, your last line of defense
Marie Curie once said: I have no dress except the one I wear every day. If you are going to be kind enough to give me one, please let it be practical and dark so that I can put it on afterwards to go to the laboratory.
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Three discoveries for cleaner and cheaper fuel
How can rare and expensive materials be used more efficiently to produce cleaner and cheaper fuel? Under the guidance of Marc Koper, Professor of Catalysis and Surface Chemistry, international teams of scientists have published 3 articles in Nature Communications.
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Van Marum Colloquia
The "Van Marum Colloquia" are a collaborative lecture series between the LION and LIC institutes, focusing on fundamental and applied surface science.
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The role of bubble formation in sustainable hydrogen production
The sustainable production of hydrogen could potentially be made more efficient by adding a cleverly chosen salt to the process. Researchers at the Leiden Institute of Chemistry (LIC), in collaboration with physicists at the University of Twente, have discovered that the type of salt present in the…
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Cancer vaccine packaged in minute particles
Leiden researchers have carried out successful tests using a new method of packaging a cancer vaccine in nano-particles. The new vaccine has induced a strong immune reaction in mice. The researchers believe that this method can make an important contribution to the treatment of cancer. Their findings…
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Van Marum Colloquium: Playing to strengths : the advantages of using boron doped diamond electrodes in electrochemical research
Lecture
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Blog Post | From ‘Disinformation’ to ‘Information Disorder’: Changing the Narrative about Unwanted Communication
Disinformation has become a popular subject of study and debate. A plethora of publications and policies have emerged, aiming to analyse and curb the negative consequences of unwanted communication.
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Van Marum Colloquium: High-Rate CO2 Electrolysis: From Electrocatalysts to Electrolyzers / Multiple reactivity descriptors for the Catalytic
Lecture
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Theses
Below thesis archives will be moved shortly (work in progress) to the Leiden Repository. Once this is done, theses submitted by MI students (from 2008 onwards) can be accessed via the Repository and will be removed from this site.