MESA+ University of Twente
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MATÍAS BIKEL (PROMOTION DATE: 18 DECEMBER 2009) Fundamental aspects of Phase Seperation MicroFabrication (PSµF) were studied. PSµF is a technique with which polymeric films are structured. This is done through induction of phase separation of polymer solutions, while they are in contact with micropatterned molds... QI CHEN (PROMOTION DATE: 17 DECEMBER 2009) This thesis describes the preparation and characterization of ‘vesicles’ made from amphiphilic block copolymers, and subsequently their use as nano-containers for the study of enzymatic reactions in atto-liter confined space... IHOR BRUNETS (PROMOTION DATE: 17 DECEMBER 2009) Three-dimensional integration of IC’s, is nowadays a serious alternative to further lateral downscaling. Techniques were developed for the monolithic 3-D integration of IC’s, by vertical integration of several active layers through sequential processing, focussing on two key-processes: low-temperature... MARYANA ESCALANTE MARUN (PROMOTION DATE: 11 DECEMBER 2009) Nanofabrication techniques were used to control the spatial dimensions and organization of biological assemblies: purified components of the photosynthetic system. Nano-imprint lithography and multivalent host/guest interactions were used as top-down and bottom-up nanofabrication approaches respectively... SANDEEP UNNIKRISHNAN (PROMOTION DATE: 10 DECEMBER 2009) This thesis paves the way towards the microfabrication of a solid acid electrolyte based fuel cell (µSAFC), which has a membrane electrolyte assembly (MEA), consisting of a thin-film of water soluble electrolyte, encapsulated between two dense palladium electrode membranes... BART VAN ROOIJEN (PROMOTION DATE: 26 NOVEMBER 2009) The neuronal protein α-synuclein is considered to play a pivotal role in the onset and progression of Parkinson’s disease. In this thesis the way how oligomeric α-synuclein interacts with lipid membranes, is elucidated... MAARTEN VAN ZALK (PROMOTION DATE: 13 NOVEMBER 2009) Complex oxides are emerging as a versatile class of materials, exhibiting a wide variety of properties. Possibilities are studied to tune and improve interface properties and to stabilize novel phases at the interface. A number of different cases has been investigated... YIXUAN LI (PROMOTION DATE: 11 NOVEMBER 2009) Main goal of this thesis was to access the capability of intracellular particle tracking (IPT) to generate new insights about micromechanical environments, of different intracellular probes inside the living cells, as well as methods for cellular heterogeneity analysis... ANIL AĞIRAL (PROMOTION DATE: 6 NOVEMBER 2009) Novel process windows are developed, by the combination of atmospheric pressure plasmas with microreaction technology. The type of plasma used is called non-equilibrium or “cold”, since gas temperatures remain ambient, while electron temperatures can reach a few thousand degrees Kelvin... MARCUS LOUWERSE (PROMOTION DATE: 30 OCTOBER 2009 A propulsion system has been developed, which is supposed to control the distance between two small satellites. The trend of miniaturization of satellites requires small sized propulsion systems, with system components in the micrometer range... GEORGETTE SALIEB-BEUGELAAR (PROMOTION DATE: 30 OCTOBER 2009) The electrokinetic transport of λ-DNA and Litmus DNA in nanoslits is described. Fused silica nanoslit devices of different height were used for the experiments. Next to a field dependent mobility, the mobility of λ-DNA is higher when comparing to Litmus DNA in the 20 nm high nanoslits. We also find in these nanoslits that the... SÜLEYMAN ER (PROMOTION DATE 29 OCTOBER 2009) Scenarios to launch hydrogen as an important energy carrier are only realistic if hydrogen can be stored in a light, compact, fast and reliable way, under moderate conditions. Using materials that absorb hydrogen is one route that can lead to this goal... BRAM BORKENT (PROMOTION DATE: 2 OCTOBER 2009) In this thesis project, water in contact with a hydrophobic surface is studied in three different ways:
- Spherically cap-shaped gas bubbles on atomically smooth surfaces (10-100 nm)
- Gas pockets, trapped in extremely small surface defects,...
JACOB BART (PROMOTION DATE: 24 SEPTEMBER 2009) A novel route towards microchip integrated Nuclear Magnetic Resonance (NMR) analysis was studied. A novel design which departs from circular shaped coils, was proposed. The basic element is a radiofrequency-stripline which can be defined in a single layer lithographic process and which is fully scalable to specific sample dimensions. Due to the non-complicated ‘coil’ geometry, the static field distortion is very low, resulting in a high resolution detection system... ROLF LOCH (PROMOTION DATE: 18 SEPTEMBER 2009) Research is performed on high harmonic generation and ion acceleration, processes based on the interaction of gaseous and solid media with high-intensity laser pulses.
Using gaseous media, an enhancement of high harmonic generation by harmonic excitation is demonstrated, for the first time, in a guided-wave geometry...
JONATHAN BRADLEY (PROMOTION DATE: 17 SEPTEMBER 2009) The goal of integration is to reduce the size and cost of devices by realizing many functions on a single chip. There is still a need for active devices, such as amplifiers and lasers... DANNY VANPOUCKE (PROMOTION DATE: 11 SEPTEMBER 2009) In 2003 self-assembled nanowire arrays were observed, equally spaced at 1,6 nm, virtually defect and kink free, and only a single atom wide while being hundreds of nanometers long. The dubbed Pt-nanowires, turned out not to be conductive. Instead the regions between the nanowires showed conductive behaviour... TIM TSARFATI (PROMOTION DATE: 26 JUNE 2009) Reflective multilayer optics for next generation λ=13.5 nm photolithography, show more oxidation when protected by layers of a very noble metal like gold. Less noble metals actually work better... KEES VERWIJS (PROMOTION DATE: 25 JUNE 2009) This thesis concerns a remarkable phenomenon which occurs in rings connecting high-Tc superconductor YBCO to the low-Tc superconductor niobium... VICTOR BLANCO CARBALLO (PROMOTION DATE: 17 JUNE 2009) The purpose of this project is to develop a new, reliable technology for gaseous particle detectors based on integrated circuit technology.These detectors could be used in fields such as medical applications, high energy physics or X-ray imaging... MARCEL DIJKSTRA (PROMOTION DATE: 12 JUNI 2009) Low-drift micro flow sensors were developed for accurate measurement of minute amounts of liquid flow in the nl/min range. A microchannel fabrication concept was developed, based on buried channel technology... LINGLING SHUI (PROMOTION DATE: 14 MAY 2009) Micro- and nanofluidic devices were investigated for the creation and manipulation of oil and water systems, and for the production of femtoliter-size droplets... EDMONDO BENETTI (PROMOTION DATE: 23 APRIL 2009) The aim was to develop new fabrication techniques, based on surface-initiated controlled polymerization (SIP) for the preparation of functional polymeric platforms across the length-scales... KEVIN PAUL NICHOLS (PROMOTION DATE: 9 APRIL 2009) Three miniaturized systems were developed to analyze enzyme kinetics: a digital microfluidic system, a digital nanofluidic system, and an non-digital droplet-based microfluidic system... ARIE IRMAN (PROMOTION DATE: 2 APRIL 2009) This thesis describes the modelling, design and setup of an experiment which aims on the first demonstration of laser wakefield acceleration with external bunch injection. In this injection scheme, an electron bunch provided by a conventional linear accelerator is injected into a plasma channel shortly before the arrival of a high-intensity ultra-short laser-pulse. In the channel, the bunch would be overtaken by the laser pulse... WOUTER SPARREBOOM (PROMOTION DATE: 2 APRIL 2009) AC electro-osmosis (AC-EO) is the movement of liquid induced by the application of alternating current potential waves to wall-integrated electrodes. Asymmetry is added either in space (by electrode geometry) of in time (by applying asymmetric AC signals). This thesis was part of the NanoNed PhD project: “Flow sensing and control in nanochannels”... CHRISTIAAN BRUININK (PROMOTION DATE: 19 MARCH 2009) This thesis contributes to the continuous development of patterning strategies in several different areas of unconventional nanofabrication: from the transfer of molecules into regular patterns unto surfaces, to the structuring of thermoplastic polymers into functional templates, and towards the fabrication of functional nanophotonic devices such as two-dimensional photonic crystal waveguides... BIANCA BEUSINK (PROMOTION DATE: 26 FEBRUARY 2009) The concept of label-free biosensing is introduced, with a special emphasis on SPR imaging. The principle and role of microarrays and data analysis are also described... MARTIN VAN ESSEN (PROMOTION DATE: 23 JANUARY 2009) Micro-Electro Mechanical Systems (MEMS) are generally characterized as miniaturized systems with electro-statically driven moving parts. In many cases, the electrodes are capacitively coupled. This configuration allows for many sensitive sensor applications... WOJCIECH BULA (PROMOTION DATE: 23 JANUARY 2009) This thesis describes the development of microfluidic platforms to perform on-chip kinetic studies of organic reactions... JEROEN HEGEMAN (PROMOTION DATE: 16 JANUARY 2009) Its large mass makes the top quark a key player in the realm of the postulated Higgs boson. Precision measurements of its particle mass, and the W boson, can provide indirect constraints on the Higgs boson mass... ALISIA PETERS (PROMOTION DATE: 9 JANUARY 2009) Micro-patterns can be easily replicated in polymer films using etched silicon substrates in combination with the casting techniques, developed in the Membrane Technology Group. Different patterns and the presence of surface roughness lead to different wetting properties... ANDRÁS PERL (PROMOTION DATE: 8 JANUARY 2009) The focus in this thesis is on multivalent molecular self-assembly, on solid surfaces, studied both for fundamental reasons and technological applications. Heavyweight dendritic molecules with thioether end-groups are employed as low diffusive inks, to faithfully transfer sub-micrometer features onto gold via positive μCP (microcontact printing)...