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Jeroen Haneveld (promotion date: 20 January 2006) Nanochannel fabrication and characterization using bond micromachining
In short we tried to develop new techniques to make nanochannels, tiny channels for fluids or gases, and making them as cheap, accurate and robust as possible. ... read more |
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Lourdes Basababe Desmonds (promotion date: 13 January 2006) Fluorescent Self-Assembled Monolayers as New Sensing Materials
First we have developed a new fluorescent material for chemical sensing. The idea is to detect chemical substances with the fluorescent properties of the material. ... read more |
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Ruben Sharpe (promotion date: 12 January 2006) Controlling mass transport in microcontact printing.
The principle of microcontact printing was conceived in order to bridge the gap between the expensive method of photolithography and cheap traditional printing methods, which are limited to a low resolution. ... read more |
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Ronald Dekker (promotion date: 22 December 2006) All-Optical Processes in Integrated Optical Devices Utilizing Materials with Large Third Order Nonlinearities and Gain
Light plays an ever-increasing important role in the field of data communication. Modern data communication is nothing but light pulses propagating through a glass fibre cable. ... read more |
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Egbert van der Wouden (promotion date: 15 December 2006) Field effect, flow control of electro osmotic flow.
We have generated a flow using electric fields. Electro osmotic flow only works in very small channels. When you apply an electric field you get a higher charge that pulls at the fluid in the channel, thus generating a flow. ... read more |
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Ardhasena Sopaheluwakan (promotion date: 14 December 2006) Characterization and simulation of localized states in optical structures.
My thesis is about mathematical modelling of resonant optical structures. Optical resonators are structures that usually consist of two building blocks: an optical cavity and an assisting structure that functions as a mirror. ... read more |
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Ivan Nicolaev (promotion date: 2 November 2006) Spontaneous-emission rates of quantum dots and dyes controlled with photonic crystals.
In my thesis I describe experimental work in which effects of photonic crystals on spontaneous emission of light from quantum dots and organic dyes were studied. The studied quantum dots are very small particles, of size of several nanometers, made from CdSe semiconductor. ... read more |
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Hartmut Henneken (promotion date: 25 October 2006) Sampling Strategies for the Analysis of Reactive Low-Molecular Weight Compounds in Air.
I developed a badge for workers to wear on their clothing. The badge is collecting certain chemicals to assess the workers exposure to those hazardous compounds. The staff of the radiology departments of hospitals wear similar badges. ... read more |
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Karthikeyan Shunmugavel (promotion date: 13 October 2006) Rapid single flux quantum logic in high temperature superconductor technology
Superconducting electronics is based on Josephson junctions. A Josephson junction consists of two superconducting electrodes separated by a very thin insulating layer. ... read more |
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Ana Valero (promotion date: 12 October 2006) Single cell electroporation on a chip.
Electroporation is a technique to change the permeability of the cell membrane to facilitate transport of drugs or chemicals for instance in and out of the cells. For this purpose, I applied an electric field of a high voltage but for a very short time in order not to kill the cell. The membrane opens up for a short time during which you can insert your chemical or other substance. ... read more |
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Ashima Sah (promotion date: 3 March 2006) Chemically modified ceramic membranes; study of structural and transport properties.
The group here has been working on ceramic membranes (inorganic silica membranes). My project involved modifying the top layer, making it more hydrophobic to enhance separation properties of gases and liquids. ... read more |
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Huseyin Gökcan (promotion date: 1 September 2006) Hot electron and hole transport in the spin valve transistors
An alternative for electron devices are the spin electron devices, using the spin of the electron as well as its charge. ... read more |
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Marko Sturm (promotion date: 13 July 2006) Oxide growth on silicon: interface formation and nanoscale electrical properties
In our project we are looking for oxides with a larger dielectric constant than silicon oxide, the conventional gate oxide used for CMOS technology. ... read more |
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Manish Arora (promotion date: 16 February 2006) Cavitation for Biomedical Applications.
Cavitation is the formation of vapour bubbles in liquid when you reduce the normal pressure surrounding the liquid. They last for a very short period of time, in the order of hundredths of microseconds. ... read more |
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Mohand Talanana (promotion date: 12 July 2006) Spin transport from first-principles: metallic multilayers and a model spin-valve transistor.
Principally in this work I focused on the development of an efficient and flexible method which uses no adjustable parameters to study the electronic transport in complex and inhomogeneous nanostructures, e.g. hybrid systems combining magnetic, nonmagnetic and/or semiconductor materials. ... read more |
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Olga Crespo Biel (promotion date: 10 February 2006) Nanofabrication of two-and three dimensional structures by multivalent supramolecular interactions
My thesis describes the versatility of self-assembly and multivalency to create 2D and 3D nanostructures and to apply such protocols in more complex nanofabrication schemes. ... read more |
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Geert Altena (promotion date: June 2006) Evanescent field sensing in hybrid MOEMS devices.
MOEMS devices are devices combining MEMS (Micro Electrical Mechanical Systems, small mechanical chips) and optics. The optics are mounted on the chip to measure the mechanical movement on the chip. An evanescent field could be simply described as a bit of light escaping the structure in which it is trapped. The mechanical movement on the chip influences the intensity of the light and that is what we measure. ... read more |
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Marcello Barisonzi (promotion date: 31 May 2006) Top mass measurements in the electro weak channel at the ATLAS experiment
First of all I would like to say that my thesis is a bit out of the scope of the University of Twente. The ATLAS experiment in Geneva, Switzerland ... read more |
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Sebastian Götz (promotion date: 31 May 2006) Wavelength resolved detection of quantitative analyses on chip separations
We are an analytical group, we are measuring things. We do separations of substances, e.g. environmental pollutions or whatever. ... read more |
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Mark Huijben (promotion date: 28 April 2006) Interface engineering for oxide electronics;
tuning electronic properties by atomically controlled growth.
The main part of my thesis involved the growth of materials. Using pulsed laser deposition we ‘grow’ extremely thin layers of a few nanometres on a crystalline substrate. ... read more |
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Ewa Tocha (promotion date: 27 April 2006) Bridging length and time scales by AFM-based nanotribology: Applications to nanostructured ceramics and polymer surfaces.
Tribology is a study of friction, adhesion, lubrication and wear of surfaces in relative motion. I focused on friction on the nanoscale. With Atomic Force Microscopy you can measure different types of forces. ... read more |
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Marjolein Koopman (promotion date: 21 April 2006) Nanoscale cell membrane organization; a near-field optical view.
I have looked at cell membranes and mainly cell membranes of human cells, dendritic cells and monocytes both cells of our immune system. For fighting infectious diseases it is very important how the proteins and lipids are organized in the cell membrane. ... read more |
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Jurgen Huisstede (promotion date: 20 April 2006) A new tool to study DNA protein interactions
People in our group build and use equipment to look at single molecules at the smallest possible scale.
A possible technique for looking at single DNA molecules for instance, is fluorescence. Another possibility, not for visualization but to apply and measure forces within a molecule, are optical tweezers.With optical tweezers you capture a micron-sized transparent bead using strongly focused light. ... read more |
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Koray Karakaya (promotion date: 20 April 2006) CeO2 and HfO2 High-k Gate Dielectrics by Pulsed Laser Deposition: from binary oxides to nanolaminates
Electronic devices, we all know, are getting smaller and smaller. The journey of integrated circuits started by a handful of transistors per square centimetre, and now in modern processors, there are hundreds of millions transistors. ... read more |
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Gennady Oshovsky (promotion date: 23 March 2006) Cavitand-bases Anoin receptors and self assembled (hemi)capsules in polar competitive media.
It is fairly complex to explain. I would like to compare the molecules I have been working with, with crocodiles. ... read more |
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Eric Faber (promotion date: 16 March 2006) Towards the hybrid organic semiconductor Fet (Hosfet)
Let me first explain about the FET or Field Effect Transistor. A FET basically works like an electronic switch; the most well known FET is the MOSFET, which forms the basic building block in computer chips. ... read more |
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Szabolcs Deladi (promotion date: 4 March 2006 ) Mems generated and AFM based surface modification
Mems are micro electronic mechanical systems used in applications such as sensing and actuation. ... read more |
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