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Results 661 - 680 of 759.


Chemistry - Materials Science - 26.09.2017
New synthesis boosts commercialization
New synthesis boosts commercialization
Chemists from Empa have developed and patented an environmentally friendly way to produce flame retardants for foams that can be used in mattresses and upholstery.

Physics - Materials Science - 07.09.2017
New microscopy method offers one-shot 3D imaging of nanostructures
New microscopy method offers one-shot 3D imaging of nanostructures
EPFL scientists have developed a scanning transmission electron microscopy method that can quickly and efficiently generate 3D representations of curvilinear nanostructures. Image caption: Superposed, tilt-less electron microscopy stereo image (color-filtered) of carbon nanospheres decorated with nanoparticles.

Physics - Materials Science - 04.09.2017
Carving diamonds for optical components
Carving diamonds for optical components
Thanks to a new technique developed at EPFL, optical diffraction gratings can now be made out of pure diamond, with their surfaces smoothed down to the very last atom. These new devices can be used to alter the wavelength of high-powered lasers or in cutting-edge spectrographs. A team of EPFL researchers has developed an unconventional way of microscopically cutting diamonds into a particular shape and smoothing them at an atomic level.

Health - Materials Science - 07.08.2017
Big issues around small particles
Big issues around small particles
An Empa team has succeeded in developing a new three-dimensional cell model of the human placental barrier. The "model organ" can quickly and reliably deliver new information on the intake of substances, such as nano-particles, by the placental barrier and on any possible toxic effects for the unborn child.

Materials Science - Environment - 03.08.2017
When time ravages from within
When time ravages from within
Will the reinforced concrete bridge still be standing for years to come, or has corrosion already set in? ETH scientists have discovered that previous concrete samples were too small to allow a reliable statement on the condition of reinforced concrete. Taminabrücke opened in June this year following four years of construction.

Materials Science - Environment - 26.07.2017
Not air con, but a cooling curtain
Not air con, but a cooling curtain
Climate change is leading to ever higher temperatures and aridity in many areas, making efficient room cooling increasingly important.

Physics - Materials Science - 20.07.2017
Diving into magnets
Diving into magnets
First-time 3D imaging of internal magnetic patterns Magnets are found in motors, in energy production and in data storage. A deeper understanding of the basic properties of magnetic materials could therefore impact our everyday technology. A study by Scientists at the Paul Scherrer Institute PSI in Switzerland, the ETH Zurich and the University of Glasgow has the potential to further this understanding.

Health - Materials Science - 13.07.2017
Testing a soft artificial heart
Testing a soft artificial heart
ETH researchers from the Functional Materials Laboratory have developed a silicone heart that beats almost like a human heart.

Materials Science - Microtechnics - 10.07.2017
Magic off the cuff
Magic off the cuff
Moving things with a wave of the hand: thanks to Empa technology this dream could soon become real. A sensor made of piezo-resistive fibers integrated in a wristband measures wrist movements and converts them into electrical signals.

Environment - Materials Science - 05.07.2017
Concrete from wood
Concrete from wood
Researchers from the National Research Programme "Resource Wood" have developed a type of concrete that largely consists of wood. The building material offers the construction industry new possibilities and is based in large part on renewable resources. Houses can be made of wood, as they were in the past - or of concrete, as they are today.

Health - Materials Science - 04.07.2017
Bandage with a voice
Bandage with a voice
A novel bandage alerts the nursing staff as soon as a wound starts healing badly. Sensors incorporated into the base material glow with a different intensity if the wound's pH level changes.

Physics - Materials Science - 26.06.2017
NAWI Graz researchers measure light fields in 3D
NAWI Graz researchers measure light fields in 3D
Researchers from TU Graz and the University of Graz present the new method of 3D-plasmon tomography. Light as a carrier of information is indispensable to modern communication technology. The controlled manipulation of light quanta, so-called photons, form the basis for wireless transmission or data transfer in optical glass fibres.

Materials Science - Chemistry - 13.06.2017
Hard shell, hard core
Hard shell, hard core
Liquid lithium-ion rechargeable batteries are dangerous. They can leak or ignite rapidly if they become overheated.

Environment - Materials Science - 01.06.2017
Ultra-stable perovskite solar cell remains stable for over a year
Ultra-stable perovskite solar cell remains stable for over a year
EPFL scientists have built a low-cost and ultra-stable perovskite solar cell that has been running at 11.2% efficiency for over a year, without loss in performance.

Materials Science - Health - 30.05.2017
3D printer inks from the woods
3D printer inks from the woods
Empa researchers have succeeded in developing an environmentally friendly ink for 3D printing based on cellulose nanocrystals.

Materials Science - Physics - 11.05.2017
Electrostatic design of materials: TU Graz demonstrates a fundamentally new approach
Electrostatic design of materials: TU Graz demonstrates a fundamentally new approach
Researchers at the Institute of Solid State Physics map out a radically new approach for designing optical and electronic properties of materials in Advanced Materials. Computational materials design is traditionally used to improve and further develop already existing materials. Simulations grant a deep insight into the quantum mechanical effects which determine material properties.

Materials Science - Chemistry - 02.05.2017
Sodium and magnesium to replace lithium in batteries
Sodium and magnesium to replace lithium in batteries
Scientists have produced novel electrolytes for rechargeable sodium and magnesium batteries. The research group's objective was to develop alternatives to lithium-ion technology. A project supported by the Swiss National Science Foundation (SNSF) aims to find new materials which can be used in rechargeable batteries and eventually provide alternatives to the current lithium batteries.

Environment - Materials Science - 27.04.2017
Light can improve perovskite solar cell performance
Light can improve perovskite solar cell performance
Publishing in Nature, EPFL scientists show how light affects perovskite film formation in solar cells, which is a critical factor in using them for cost-effective and energy-efficient photovoltaics.  Perovskites are materials of immense interest in solar energy technology lately, as they promise to bring down the cost of solar cells to very low levels.

Materials Science - Environment - 25.04.2017
A simplified fabrication process for high efficiency solar cells
A simplified fabrication process for high efficiency solar cells
A team of EPFL and CSEM researchers in Neuchâtel has featured in Nature Energy with an astonishing new method for the creation of crystalline solar cells. These cells have electrical contacts at the back, which removes all shadowing at the front. Thanks to this new inexpensive approach, the fabrication process is greatly simplified, with efficiencies in the laboratory already surpassing 23%.

Materials Science - Health - 19.04.2017
Gelatine instead of forearm
Gelatine instead of forearm
The characteristics of human skin are heavily dependent on the hydration of the tissue - in simple terms, the water content.