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Toiles d'araignée : on en sait plus sur leurs propriétés élastiques

Toiles d'araignée : on en sait plus sur leurs propriétés élastiques | Science et Technique Veille | Scoop.it
Des chercheurs de l'Arizona State University sont parvenus à étudier en détail les propriétés élastiques des toiles d'araignée grâce à une méthode d'analyse non-invasive.
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Chemists develop porous molecules that bind greenhouse gases

Chemists develop porous molecules that bind greenhouse gases | Science et Technique Veille | Scoop.it
Chemistry researchers have developed a molecule that assembles spontaneously into a lightweight structure with microscopic pores capable of binding large quantities of several potent greenhouse gases.
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Une colle donne une élasticité variable aux matériaux composites

Une colle donne une élasticité variable aux matériaux composites | Science et Technique Veille | Scoop.it
Des chercheurs allemands ont développé une nouvelle façon d’assembler des pièces en matériaux composites légers grâce à une colle à élasticité variable.
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How to store solar energy more cost-effectively for use at night

How to store solar energy more cost-effectively for use at night | Science et Technique Veille | Scoop.it
There’s currently no cost-effective, large-scale way to store solar energy, but Stanford researchers have developed a solution: using electrolysis to turn tanks of water and hydrogen into batteries.

Via Dr. Stefan Gruenwald
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New materials yield record efficiency polymer solar cells

New materials yield record efficiency polymer solar cells | Science et Technique Veille | Scoop.it
Researchers have found that temperature-controlled aggregation in a family of new semi-conducting polymers is the key to creating highly efficient organic solar cells that can be mass produced more cheaply.
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Un nouveau matériau entièrement étanche (Matériaux)

Un nouveau matériau entièrement étanche (Matériaux) | Science et Technique Veille | Scoop.it
Le Dr. Bastian Rapp de l'institut pour les microstructures (IMT) de l'institut de technologie de Karlsruhe (KIT, Baden-Wurtemberg) a mis au point en laboratoire un nouveau matériau justifiant de ce qu'il appelle, par bio-mimétisme, l'effet lotus...
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Measuring nano-vibrations

Measuring nano-vibrations | Science et Technique Veille | Scoop.it
Researchers have fabricated carbon nanotube mechanical resonators capable of exhibiting the highest quality factors to date.
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Extremely high-resolution MRI: New MRI method detects single hydrogen atom

Extremely high-resolution MRI: New MRI method detects single hydrogen atom | Science et Technique Veille | Scoop.it
For the first time, researchers have succeeded to detect a single hydrogen atom using magnetic resonance imaging, which signifies a huge increase in the technology's spatial resolution.

Via Dr. Stefan Gruenwald
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Noncovalent, Self-Assembled, Robust, Porous Material That Adsorbs Greenhouse Gas

Noncovalent, Self-Assembled, Robust, Porous Material That Adsorbs Greenhouse Gas | Science et Technique Veille | Scoop.it
Researchers from the Department of Chemistry at the University of Houston have created noncovalent organic frameworks, a new type of porous material that overcomes some barriers in the development of porous material technologies.  The new wonder...

Via Dr. Stefan Gruenwald
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Perfect fluid of electrons may flow inside superconductor

Perfect fluid of electrons may flow inside superconductor | Science et Technique Veille | Scoop.it
Understanding superconductors’ viscosity could help inspire scientists to find ways to improve the electric power grid.
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Light bending material facilitates the search for new particles

Light bending material facilitates the search for new particles | Science et Technique Veille | Scoop.it
Particle physicists have a hard time identifying all the elementary particles created in their particle accelerators. But now researchers have designed a material that makes it much easier to distinguish the particles.
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Of bio-hairpins and polymer-spaghetti: Spotlight on how entangled polymers flow and soften

Of bio-hairpins and polymer-spaghetti: Spotlight on how entangled polymers flow and soften | Science et Technique Veille | Scoop.it
When a basically sturdy material becomes soft and spongy, one usually suspects that it has been damaged in some way. But this is not always the case, especially when it comes to complex fluids and biological cells.
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Mineralization of sand particles boosts microbial water filtration

Mineralization of sand particles boosts microbial water filtration | Science et Technique Veille | Scoop.it
Mineral coatings on sand particles actually encourage microbial activity in the rapid sand filters that are used to treat groundwater for drinking, according to a paper.
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First observation of atomic diffusion inside bulk material

First observation of atomic diffusion inside bulk material | Science et Technique Veille | Scoop.it
Researchers have obtained the first direct observations of atomic diffusion inside a bulk material. The research could be used to give unprecedented insight into the lifespan and properties of new materials.
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New way to move atomically thin semiconductors for use in flexible devices

New way to move atomically thin semiconductors for use in flexible devices | Science et Technique Veille | Scoop.it
Researchers have developed a new way to transfer thin semiconductor films, which are only one atom thick, onto arbitrary substrates, paving the way for flexible computing or photonic devices.
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Thermomagnetic processing method provides path to new materials

Thermomagnetic processing method provides path to new materials | Science et Technique Veille | Scoop.it
For much the same reason LCD televisions offer eye-popping performance, a thermomagnetic processing method can advance the performance of polymers.
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Novel process could let consumers 3D-print metal parts for the first time

Novel process could let consumers 3D-print metal parts for the first time | Science et Technique Veille | Scoop.it
A novel 3D printing process called Selective Inhibition Sintering (SIS) promises to allow manufacturing of consumer 3D printers* that can print parts made of high-performance metals, which high-cost industrial 3D printers can already do.

Via Dr. Stefan Gruenwald
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New materials for more powerful solar cells

New materials for more powerful solar cells | Science et Technique Veille | Scoop.it
Applying a thin film of metallic oxide significantly boosts the performance of solar panel cells. Researchers have developed a new class of materials comprising elements such as bismuth, iron, chromium, and oxygen.
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'Direct writing' of diamond patterns from graphite a potential technological leap

'Direct writing' of diamond patterns from graphite a potential technological leap | Science et Technique Veille | Scoop.it
What began as research into a method to strengthen metals has led to the discovery of a new technique that uses a pulsing laser to create synthetic nanodiamond films and patterns from graphite, with potential applications from biosensors to...
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Researchers patent a nanofluid that improves heat conductivity

Researchers patent a nanofluid that improves heat conductivity | Science et Technique Veille | Scoop.it
Researchers have developed and patented a nanofluid improving thermal conductivity at temperatures up to 400°C without assuming an increase in costs or a remodeling of the infrastructure.
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New 'smart' material improves removal of arsenic from drinking water

New 'smart' material improves removal of arsenic from drinking water | Science et Technique Veille | Scoop.it
Scientists have created a new material that can remove double the amount of arsenic from water than the leading material for water treatment. Arsenic is a toxic element found naturally in groundwater. Long-term exposure over a number of years to...

Via Dr. Stefan Gruenwald
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New Omnidirectional Broadband 2D Crystal Efficiently Absorbs 85% Of Photon Energy

New Omnidirectional Broadband 2D Crystal Efficiently Absorbs 85% Of Photon Energy | Science et Technique Veille | Scoop.it
Research engineers at MIT have developed a novel solar material in the form of a 2D metallic, dielectric photonic crystal.  The material has remarkable properties of broadband absorption of sunlight, from visible to near infrared portions of the...

Via Dr. Stefan Gruenwald
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First large DNA crystals generated which could create revolutionary nanodevices

First large DNA crystals generated which could create revolutionary nanodevices | Science et Technique Veille | Scoop.it
DNA has garnered attention for its potential as a programmable material platform that could spawn entire new and revolutionary nanodevices in computer science, microscopy, biology, and more.

Via Dr. Stefan Gruenwald
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Simple and versatile way to build 3-D materials of the future

Simple and versatile way to build 3-D materials of the future | Science et Technique Veille | Scoop.it
Researchers have developed a novel yet simple technique, called 'diffusion driven layer-by-layer assembly,' to construct graphene into porous three-dimensional structures for applications in devices such as batteries and supercapacitors.
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Hybrid materials could smash the solar efficiency ceiling by extracting electrons from dark triplet excitons

Hybrid materials could smash the solar efficiency ceiling by extracting electrons from dark triplet excitons | Science et Technique Veille | Scoop.it
Researchers have developed a new method for harvesting the energy carried by particles known as ‘dark’ spin-triplet excitons with close to 100% efficiency, clearing the way for hybrid solar cells which could far surpass current efficiency limits.

Via Dr. Stefan Gruenwald
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Electrically conductive plastics promising for batteries, transparent solar cells

Electrically conductive plastics promising for batteries, transparent solar cells | Science et Technique Veille | Scoop.it
An emerging class of electrically conductive plastics called 'radical polymers' may bring low-cost, transparent solar cells, flexible and lightweight batteries and ultra-thin antistatic coatings for consumer electronics and aircraft.
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