MESA+ University of Twente
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2008

GEORGIANA STOIAN (PROMOTION DATE: 17 DECEMBER 2008) In this thesis a STM study is presented of some of the primary effects that play a role in ripple formation during ion beam erosion and epitaxial growth of Cu(001)... MARTIJN VAN RAAIJ (PROMOTION DATE: 10 DECEMBER 2008) The misfolding and aggregation of the protein alpha-synuclein is intimately linked to the pathology of Parkinson’s disease (PD). This thesis describes the use of advanced biophysical nanometrology instrumentation in an effort to understand the nanoscale morphology and secondary structure of aggregates of alpha-synuclein, called amyloid fibrils, both in vitro and in the brain tissue of Parkinson’s patients... DIANWEN ZHANG (PROMOTION DATE: 11 DECEMBER 2008) The work described in this thesis is for the project: “In vitro en in vivo studies of the architecture of nucleotide excision repair complexes”, granted by the Human Frontiers in Science Program. The goal was the study of damage recognition, complex assembly and mechanism of human NER, using designed photoreactive and fluorescent NER substrates.
The object is to develop and use new instrumentation and methods for the quantitative fluorescent nanospectroscopic techniques...
HELMUT RATHGEN (PROMOTION DATE: 3 DECEMBER 2008) A super hydrophobic surface, is a hydrophobic surface with a micro scale texture. A drop of water floats on top of the texture like a fakir on a bed of nails, thereby forming microscopic liquid-gas interfaces that span between the ridges of the texture... ROBERT MOERLAND (PROMOTION DATE: 6 NOVEMBER 2008) This thesis discusses interactions of light and emitters with metallic (nano-)structures.
Investigations (theoretical and experimental) are carried out for a lens specifically for near fields, which allows imaging of the near field. The lens is composed of a thin metal film on a dielectric surface. A method is presented that can directly evaluate the performance of a metallic film as a lens, at optical frequencies. With a near-field optical probe, acting as a source, experimental data prove that the performance of a silver film as a lens improves with decreasing wavelength...
DENNIS VAN DEN BROEK (PROMOTION DATE: 31 OCTOBER 2008) A new type of micro-actuator is built, using explosive bubble generation to achieve a fast and powerful deflection of a membrane. Specific properties and achievements, such as stroke, force and operating frequency are studied... IN YEE PHANG (PROMOTION DATE: 24 OCTOBER 2008) In the barnacle’s cyprid larva stage, barnacles move to settle themselves on a hard marine underwater surface, f.e. a ship hull. The footprints they produce attract other barnacles and encourage them to colonize together. Using AFM-techniques the structure, mechanical properties and characteristics of the cyprid larva stage, are studied... DAWID ZALEWSKI (PROMOTION DATE: 24 OCTOBER 2008) Capillary electrophoresis (CE) on a chip has one important drawback: the amount of an analyte obtained from a single run is very limited. Consequently, post-separation processing of the separated sample is challenging. To increase the amount of material available for a follow-up analysis, one can either pool fractions separated in subsequent runs or employ a method for continuous sample separation... XING YI LING (PROMOTION DATE: 24 OCTOBER 2008) This thesis aims to construct stable, ordered and functional 2D and 3D nanoparticle structures. Molecular recognition abilities have been exploited by using a combination of supra-molecularly directed self-assembly of receptor-functionalized nanoparticles, and top-down nanofabrication techniques... DOEKLE YNTEMA (PROMOTION DATE: 3 OCTOBER 2008) Based on experiments with a manually assembled 3D-particle velocity probe, a chip with four integrated particle velocity sensors is developed... LEON WOLDERING (PROMOTION DATE: 5 SEPTEMBER 2008) In this thesis several fabrication methods were investigated to obtain three-dimensional photonic crystals, in particular inverse woodpiles. Three-dimensional photonic crystals are predicted to be ultimate devices to completely control the propagation and emission of light. This is highly anticipated for applications in information communication and processing, but may also yield sensitive sensors useful for biology and even medicine... GUIDO SASSE (PROMOTION DATE: 4 JULY 2008) New developments are presented for reliability engineering in RF (radio frequencies) CMOS, comprising of three subjects... VØLODYMYR KARPAN (PROMOTION DATE: 20 JUNE 2008) Despite the central role played by electron spin in many areas of condensed matter physics, it barely figured in the mainstream of charge-based microelectronics. The situation changed with the discovery of the giant magnetoresistance (GMR) effect, which is exploited now in the majority of magnetic reading heads of hard drive discs... DIETRICH KOHLHEYER (PROMOTION DATE: 20 JUNE 2008) This thesis describes the development of a new microfluidic chip for applications in proteomics analysis. This research was driven by the need for new, efficient analytical tools to help understanding autoimmune diseases, such as rheumatoid arthritis. This multidisciplinary research was carried out in cooperation with three Dutch universities: Twente, Utrecht and Nijmegen... PHILIP HARDING (PROMOTION DATE: 13 JUNE 2008) We investigate light propagation in periodic, nanoscale structures, i.e., photonic crystals. Some photonic crystals can be made to include a defect, or a cavity. This cavity can lock up light... ARIE VAN HOUSELT (PROMOTION DATE: 5 JUNE 2008) Structural and electronic properties of the 1D structures, which are formed on a Ge(001) surface, after the deposition of Pt of Au, are studied with a Scanning Tunneling Microscope (STM)... WIM DE MALSCHE (PROMOTION DATE: 30 MAY 2008) Micromachining technologies have been employed to solve a number of stringent issues in liquid chromatography. An automatic injection system was developed for shear-driven chromatography (SDC)... JANNE SAVOLAINEN (PROMOTION DATE: 16 MAY 2008) In the quest for laser control of chemistry, active methods are used, based on manipulating microscopic properties of light-matter interaction. The general goal is to find laser pulse shapes, that will drive reactions to desired products and avoid unwanted products... IVO VELLEKOOP (PROMOTION DATE: 24 APRIL 2008) A new wavefront shaping technique is developed to steer light through opaque materials. When the shaped wavefront exactly matches the scattering properties of the object, for example white paint or the shell of an egg, the object focuses light to a point... WOLTER SIEMONS (CUM LAUDE) (PROMOTION DATE: 17 APRIL 2008) As miniaturization continues, layers in devices are made thinner and their properties become increasingly difficult to measure. There are techniques available to measure a wide range of properties of materials at nanometer length scales and measure the extremely small signals that they produce... MILAN MAKSIMOVIC (PROMOTION DATE: 11 APRIL 2008) A theoretical research in optics concerning optical multilayers: structures those are periodic in their properties in one direction... JOSKA BROEKMAAT (PROMOTION DATE: 10 APRIL 2008) This thesis describes a setup for in-situ growth monitoring with Scanning Force Microscopy (SFM) during Pulsed Laser Deposition (PLD). The setup is designed to study oxide growth during PLD. The sample was transferred towards the PLD-position during deposition and moved back to the SFM-position to continue imaging... ALEXANDER LE FEBRE (PROMOTION DATE: 28 MARCH 2008) In the micro scanning probe array memory concept, an array of magnetic probes is used to write and read on a patterned recording medium...