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The organo-metal-like nature of long-range conduction in cable bacteria

Pankratov, Dmitrii (author), Hidalgo Martinez, Silvia (author), Karman, Cheryl (author), Gerzhik, Anastasia (author), Gomila, Gabriel (author), Trashin, Stanislav (author), Boschker, H.T.S. (author), Geelhoed, Jeanine S. (author), Meysman, F.J.R. (author)

Cable bacteria are filamentous, multicellular microorganisms that display an exceptional form of biological electron transport across centimeter-scale distances. Currents are guided through a network of nickel-containing protein fibers within the cell envelope. Still, the mechanism of long-range conduction remains unresolved. Here, we...

journal article 2024

document

Characterisation of electrochemical properties of capacitive membrane electrodes: Determination of the relation between the electrochemical parameters and the performance of capacitive membrane electrodes with electrochemical impedance spectroscopy

Tomsjansen, Chérise (author)

Fresh water is a scarce source. Demand for freshwater is greater than supply, due to the increasing industrialisation of countries and the low natural supply of freshwater sources such as rivers and lakes. Contamination of these natural freshwater sources by industrial wastewater adds to the freshwater deficit. Throughout history, technologies...

master thesis 2023

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Investigating the Chemical Nature of Cathode Coatings under Electrochemical Cycling

Ashokkumar, Kartik (author)

The advancements in the field of e-mobility today far outpace all prior projections, and the rate of progress is quick. Due to their high power density and energy density, Lithium-Ion Batteries (LIBs) have grown to be an increasingly appealing alternative for use in electric vehicles. However, over extended use, these batteries frequently...

master thesis 2023

document

Chasing H- in Rare-earth Metal Oxyhydride Thin Films

Chaykina, D. (author)

Rare-earth metal oxyhydride thin films show a photochromic effect, where their transparency decreases (reversibly) with exposure to light with energy greater than its optical band gap. The precise underlying mechanism behind this effect is unknown, but is investigated in this thesis by using techniques such as muon spin relaxation, or materials...

doctoral thesis 2022

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Biophysical mechanisms responsible for ultrasound neuromodulation in bilayer lipid membranes: Enabling the research that uncovers the mysterious interactions between ultrasound and neurons

Burghoorn, Niels (author)

Medical technology has seen great progress over the last centuries, developing increasingly more specialised therapy to benefit human health. The rise of the pharmaceutical industry and the research it drives are contributors to this success. However, in humanity's attempt to tackle more and more complex health issues, the conventional methods...

master thesis 2022

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Correlating laboratory tests with service life performance of marine coating systems

Coimbatore Govindarajan, Hemchandran (author)

Accelerated tests have been commonly used by the marine coating industry to evaluate the performance of a coating in a short duration of time. Replicating natural exposure in an artifi- cially simulated manner is a challenging task due to the various factors that induce corrosion in the natural environment. Continuous salt spray testing is a...

master thesis 2022

document

Non-ohmic resistance of multiple ion-exchange membranes in series

Kramer, Zino (author)

This research aims to analyse the non-ohmic resistance of multiple ion-exchange membranes (IEM) in series, for a better understanding of membrane resistances. These membranes can be found in series in energy storage systems such as acid-base flow batteries (ABFB).<br/>The effect of different current densities on the ohmic and non-ohmic...

master thesis 2022

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Electrochemical screening and surface analysis of environmentally friendly corrosion inhibitors for aerospace aluminium alloy

Sewlikar, Parth (author)

For the past few decades, the aerospace industry has been actively looking for measures to tackle the problem of localized corrosion of aluminium alloy 2024-T3. One such measure was the use of hexavalent chromium salts as corrosion inhibitors. However, recent studies have reflected the environmental concerns and health impacts associated with...

master thesis 2022

document

Effect of microstructural changes in copper during the electrochemical conversion of CO2 to hydrocarbons

Tripathi, Manas (author)

Excess CO2 in the atmosphere has been a troublesome problem for humanity for the last few decades now. Academics, governments and industries are working together to tackle this problem to avert a global warming disaster. Research on many technologies is in progress to tackle global warming, with carbon capture being one exciting solution. The...

master thesis 2022

document

Passive Film Properties of Martensitic Steels in Alkaline Environment: Influence of the Prior Austenite Grain Size

Yilmaz, A. (author), He, X. (author), Pletincx, Sven (author), Hauffman, Tom (author), Sietsma, J. (author), Gonzalez Garcia, Y. (author)

The role of prior austenite grain size (PAGS) on the passive layer properties of martensitic steels is studied. Electron backscatter diffraction analysis shows that PAGS between 5 and 66 µm were obtained after applying different heat treatments. The barrier properties of passive film deteriorate with grain refinement up to 28 µm, attributed to...

journal article 2022

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Resistance Breakdown of a Membraneless Hydrogen-Bromine Redox Flow Battery

Alfisi, Daniel (author), Shocron, Amit N. (author), Gloukhovski, Robert (author), Vermaas, D.A. (author), Suss, Matthew E. (author)

A key bottleneck to society's transition to renewable energy is the lack of cost-effective energy storage systems. Hydrogen-bromine redox flow batteries are seen as a promising solution, due to the use of low-cost reactants and highly conductive electrolytes, but market penetration is prevented due to high capital costs, for example due to...

journal article 2022

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OoC-integrated impedance spectroscopy for blood-brain barrier integrity analysis

Ivančević, Lovro (author)

The lack of reliable human physiology models in vitro combined with an ever-increasing set of health and safety requirements imposed by pharmaceutical regulatory agencies across the world is causing a concerningly low number of new drugs to reach the market. Organ-on-Chip (OoC) technology aims to aid faster development of new drugs by providing...

master thesis 2021

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Silicone encapsulation of thin-film SiOx, SiOxNy and SiC for modern electronic medical implants: a comparative long-term ageing study

Lamont, C. (author), Grego, T. (author), Nanbakhsh, K. (author), Idil, A. Shah (author), Giagka, Vasiliki (author), Vanhoestenberghe, A. (author), Cogan, S. (author), Donaldson, N. (author)

Objective. Ensuring the longevity of implantable devices is critical for their clinical usefulness. This is commonly achieved by hermetically sealing the sensitive electronics in a water impermeable housing, however, this method limits miniaturisation. Alternatively, silicone encapsulation has demonstrated long-term protection of implanted thick...

journal article 2021

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Silicone encapsulation of thin-film SiO_x , SiO_x N_y and SiC for modern electronic medical implants: A comparative long-term ageing study

Lamont, C. (author), Grego, T. (author), Nanbakhsh, K. (author), Idil, A. Shah (author), Giagka, Vasiliki (author), Vanhoestenberghe, A. (author), Cogan, S. (author), Donaldson, N. (author)

Objective. Ensuring the longevity of implantable devices is critical for their clinical usefulness. This is commonly achieved by hermetically sealing the sensitive electronics in a water impermeable housing, however, this method limits miniaturisation. Alternatively, silicone encapsulation has demonstrated long-term protection of implanted...

journal article 2021

document

Investigation of novel Cr6+-free anodising pre-treatments for enhanced corrosion protection of aluminium alloy 2024-T3

Nierijnck, Sven (author)

Hexavalent chromium has been the industry standard for corrosion protection for many years. Its unsurpassed active corrosion inhibiting capabilities, its incredible versatility and its economic benefits made it a popular all-rounder. Nowadays the widely known toxic and carcinogenic nature have restricted its use within the European Union. More...

master thesis 2020

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An in situ spectro-electrochemical monitoring of aqueous effects on polymer/metal oxide interfaces

Pletincx, Sven (author), Mol, J.M.C. (author), Terryn, H.A. (author), Hubin, Annick (author), Hauffman, Tom (author)

A spectro-electrochemical setup of Fourier transform infrared spectroscopy (FTIR) in the Kretschmann geometry and odd random phase multisine electrochemical impedance spectroscopy (ORP EIS) is applied to in situ monitor the effect of an aqueous electrolyte on the polymer/metal oxide interface. The interfacial interactions of an ultrathin...

journal article 2019

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Corrosion monitoring of steel structure coating degradation

Zajec, Bojan (author), Bajt Leban, Mirjam (author), Kosec, Tadeja (author), Kuhar, Vili (author), Legat, Andraž (author), Lenart, Stanislav (author), Fifer Bizjak, Karmen (author), Gavin, Kenneth (author)

An important aspect regarding the sustainability of steel structures is to ensure the structure is protected from corrosion. A number of surface coatings are available that play an important role in protecting these structures. An important part of the management of these structures is reliable and regular inspection along with methods for early...

journal article 2018

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Sensorless Temperature Measurements for Advanced Battery Management Systems

Raijmakers, L.H.J. (author)

Li-ion batteries have drawn considerable attention in the last decades due to the fact that these devices have a relative high energy density, long cycle life and low self-discharge rate. However, challenges are met in monitoring and controlling the states of a Li-ion battery, such as State of Charge, State of Health and temperature. In this...

doctoral thesis 2018

document

Superabsorbent polymer additives for repeated barrier restoration of damaged powder coatings under wet-dry cycles: A proof-of-concept

Saini, Vimal (author), von Tapavicza, Max (author), Eloo, Christina (author), Braesch, Katrin (author), Wack, Holger (author), Nellesen, Anke (author), Schmidt, Annette M. (author), Garcia, Santiago J. (author)

Superabsorbent polymers (SAPs) are well known for their ability to absorb and hold high water amounts accompanied by a high volume expansion. In this work we show the benefits of this underlying property of SAPs to induce underwater crack closure with subsequent barrier restoration in damaged protective coatings. For the proof of concept,...

journal article 2018

document

Lipid bilayers cushioned with polyelectrolyte-based films on doped silicon surfaces

Poltorak, L. (author), Verheijden, Mark L. (author), Bosma, D. (author), Jonkheijm, Pascal (author), de Smet, L.C.P.M. (author), Sudhölter, Ernst J. R. (author)

Silicon semiconductors with a thin surface layer of silica were first modified with polyelectrolytes (polyethyleneimine, polystyrene sulfonate and poly(allylamine)) via a facile layer-by-layer deposition approach. Subsequently, lipid vesicles were added to the preformed polymeric cushion, resulting in the adsorption of intact vesicles or...

journal article 2018