Effect of stacking fault energy on the thickness and density of annealing twins in recrystallized FCC medium and high-entropy alloys

This work aims to predict the microstructure of recrystallized medium and high-entropy alloys (MEAs and HEAs) with a face-centered cubic structure, in particular the density of annealing twins and their thickness. Eight MEAs and five HEAs from the Cr-Mn-Fe-Co-Ni system are considered, which have been cast, homogenized, cold-worked and...

Two-photon polymerization-based 3D-multi-electrode arrays for electrical monitoring of neuronal cells

3D-multi-electrode arrays (3D-MEAs) are needed to overcome the limitations of 2D-multi-electrode arrays (2D-MEAs) and enable the electrical characterization of 3D neuronal cultures in in vitro brain models, advancing the understanding of neurological disorders and paving the way to personalized medicine. The aim of this thesis was to overcome...

Monolithically fabricated flexible graphene-based active implant

Treatment of diseases, illnesses or disorders are always sought without any undesired side-effects and complications. Neurological disorders, such as Epilepsy and Parkinson’s, are currently treated using pharmaceuticals. However, drugs have a low specificity and lose their effectiveness after several years. In addition, prolonged drug usage...

Electrochemical Reduction of CO2 to CO in Membrane Electrode Assembly (MEA) Setup

The global concern of the increasing levels of CO2 is growing quickly in the recent years. Therefore, a lot of research is currently underway with respect to closing the carbon cycle. The electrochemical reduction of CO2 is a promising technology that could help utilize the CO2 as a feedstock to produce chemicals and fuels, while storing the...

Parametric study of Aerosol Behaviour and Solvent Emission in a Post Combustion Carbon Capture

The amine-based post combustion carbon capture process is one of the most advanced and preferred technologies to reduce CO2 emissions from point sources like power plants. The emissions of amine from capture plants is one of the biggest challenges faced by this technology. These emissions typically occur by means of aerosol/mist formation. To...

Impedance-Based Bioassay for Characterization of Single Malignant Melanoma Cancer Cells using Cmos-Mea Systems: A Heterogeneity and Classification Assay Proposal

Malignant Melanoma (MM) is the most aggressive type of skin-cancer. Current diagnostic tools for the detection of malignancies of the skin (MM cancer) include histological, optical, ultrasound, and impedance-based techniques. The inadequacies of the first three practices are overwhelmed by the Electrical Impedance Spectroscopy (EIS) method. EIS...

Conducting CO2 reduction at a bipolar membrane electrode assembly: Combining known technological niches to achieve higher current densities

A comparative study of three different membrane electrode assemblies for electrochemical CO2 reduction is performed in a flowcell setup utilizing gaseous CO2 as a reagent. The membrane electrode assembly consists of a bipolar or exchange membrane, an Ag-mesh catalyst and a gas diffusion layer. The counterreaction occurring on the opposite of the...

Stretchable Micro-Electrode Arrays for Electrophysiology

A potential serious side effect of drugs is cardiotoxicity which can result in lethal heart arrhythmias. Cardiotoxicity has been the leading cause of drug withdrawals from the market in the past decades, and has been responsible for costly failures in late stage clinical trials. This highlights the unmet need in the pharmaceutical industry for...

Fabrication and characterization of an Upside-down CNT MEA

Over the last few years the need of new alternatives to traditional disease modelling, drug screening and toxicity tests has boosted the development of a new class of devices called Organ on Chip. These usually consist in a substrate or a well in which cells are cultured with the aim of differentiating them in a particular tissue lineage. With...

A Platform for Manufacturable Stretchable Micro-electrode Arrays

A platform for the batch fabrication of pneumatically actuated Stretchable Micro-Electrode Arrays (SMEAs) by using state-of-the-art micro-fabrication techniques and materials is demonstrated. The proposed fabrication process avoids the problems normally associated with processing of thin film structures on polydimethylsiloxane (PDMS), by first...

SO2 and CO2 removal from flue gas

The emission of green house gases is becoming of ever increasing worries to the international community. The fossil fuel consumption is still increasing and therefore the emission of the green house gases. Many uncertainties exist around the negative effects arising from large concentrations of green house gases in the atmosphere. To prevent...

Produktie van Mono-ethanolamine (MEA) uit Ammoniak en Etheenoxide met minimale produktie van Di- en Tri-ethanolarnine (DEAlTEA)

Meetverslag getijgoot onderzoek: Inhomogene getijproeven uitgevoerd met een natuurlijke bodem en een bovenafvoer met natuurlijk slib in suspensie

Image analysis of surf zone hydrodynamics