25 Jul 2016 - Novel design strategy for hydrogen generating molecular photocatalysts
An international collaboration coordinated by scientists at the University of Twente (TNW/MESA+) has resulted in a new design approach for hydrogen generating photocatalysts. The authors observed that violating the commonly accepted state-of-the-art design strategy strongly improves the hydrogen generation efficiency. The novel approach shows high promise for efficient direct conversion of sunlight into green fuel. The results are published in the leading journal Chemical Communications.
13 Jul 2016 - The 'Ouzo effect' under the magnifying glass
Pour some water into your glass of ouzo or pastis, and the beverage will change from transparent to milky: this is the well-known ‘Ouzo effect’. But what will happen if you simply place a drop of ouzo on a surface and wait? Scientists of University of Twente’s Physics of Fluids group have studied the phenomena taking place, using video and simulation. They distinguish four ‘life phases’ of the drop, occurring within no more than a quarter of an hour. The results are published in the July 15 issue of the Proceedings of the National Academy of Sciences of the USA (PNAS).
8 Jul 2016 - Optimal sperm cell traceable through temperature and caffeine
Scientists from the University of Twente have devised a technique to find the optimal sperm cell. The researchers have demonstrated that a single sperm starts moving its tail faster as the temperature rises, while this movement slows down when the environment becomes colder. Also, by adding a caffeine, the sperm cell starts moving differently. This application will help childless couples over time conceive with fertility treatments such as in vitro fertilisation.
8 Jul 2016 - Nanotechnology for food and water
Article in UT Nieuws: Nanotechnology for food and water.
Haico te Kulve is interviewed by UT Nieuws about his research.
Text: Michaela Nesvarova
Photo: Gijs van Ouwekerk
8 Jul 2016 - UT scientists develop brain-inspired memory material
Our brain does not work like a typical computer memory storing just ones and zeroes: thanks to a much larger variation in memory states, it can calculate faster consuming less energy. Scientists of the MESA+ Institute for Nanotechnology of the University of Twente (The Netherlands) now developed a ferro-electric material with a memory function resembling synapses and neurons in the brain, resulting in a multistate memory. They publish their results in this week’s Advanced Functional Materials.
23 Jun 2016 - Brain-on-a-chip in 3D
To study brain cell’s operation and test the effect of medication on individual cells, the conventional Petri dish with flat electrodes is not sufficient. For truly realistic studies, cells have to flourish within three-dimensional surroundings. Bart Schurink, researcher at University of Twente’s MESA+ Institute for Nanotechnology, has developed a sieve with 900 openings, each of which has the shape of an inverted pyramid. On top of this array of pyramids, a micro-reactor takes care of cell growth. Schurink defends his PhD thesis June 23.
22 Jun 2016 - Proper breeding ground for germanene
Graphene may currently be the best known ‘two dimensional’ material, its new cousin germanene seems to have properties that are even more attractive for application in electronics. For this, germanene has to grow in a one atom layer on top of a proper carrier - substrate. Scientists of the MESA+ Institute for Nanotechnology of the University of Twente managed to grow germanene on a semiconductor material, preserving the unique properties. In two separate papers in the same edition of Physical Review Letters, they present calculations ánd experiments.
14 Jun 2016 - Cereal science: the inverted Cheerios effect
Liquid drops on soft solid surfaces interact by an ‘inverted Cheerios effect’, which can be tweaked so that the droplets move towards or away from each other, according to scientists of UT’s MESA+ Institute for Nanotechnology, University of Queen Mary of London and others. They publish their findings in the journal Proceedings of the National Academy of Sciences.
9 Jun 2016 - NanoLabNL boosts quality of research facilities as Dutch Toekomstfonds invests firmly
NanoLabNL will invest firmly in its research facilities in the coming years. This week, the Dutch Ministry of Economic Affairs confirmed a financial contribution to the activities of NanoLabNL, as part of the so-called Toekomstfonds (Future Fund). The Dutch national facility for nanotechnological research will use the acquired resources to stimulate the development of proof-of-concepts, demonstrators and small scale production.
31 May 2016 - New theory on how to control energy transfer between molecules
Scientists at the Technical University of Denmark, the University of Twente (MESA+) and the FOM Foundation have settled an old scientific debate on whether or not the energy transfer between two molecules depends on their nano-environment. They found that a flat mirror close to a pair of molecules hardly influences their energy transfer rate, while it greatly affects the light emission by a single molecule. Only mirrors as close as the distance between the molecules influence the energy transfer. Their work is relevant to applications in lighting, nano-sensing, photosynthesis, photovoltaics, and quantum information processing. The results were published in the leading British-German magazine New Journal of Physics.