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Vers des plastiques qui se réparent de manière autonome ? (Matériau)

Vers des plastiques qui se réparent de manière autonome ? (Matériau) | Science et Technique | Scoop.it
Des chercheurs de l'Institut technologique de Karlsruhe (KIT, Bade-Wurtemberg) en coopération avec les industriels d'Evonik, l'Institut Leibniz de recherche en polymères de Dresde (Saxe) et des chercheurs australiens ont développé une réaction de...
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Scientists watch nanoparticles grow: Analysis allows tailoring materials for switchable windows and solar cells

Scientists watch nanoparticles grow: Analysis allows tailoring materials for switchable windows and solar cells | Science et Technique | Scoop.it
With DESY's X-ray light source PETRA III, scientists have observed the growth of nanoparticles live. The study shows how tungsten oxide nanoparticles are forming from solution.
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First step towards 'programmable materials': Sheet metal that never rattles

First step towards 'programmable materials': Sheet metal that never rattles | Science et Technique | Scoop.it
Researchers have succeeded in producing a prototype of a vibration-damping material that could change the world of mechanics forever. The material of the future is not only able to damp vibrations completely.
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Engineering materials for super-efficient nanoelectronics: Potential way to make graphene superconducting

Engineering materials for super-efficient nanoelectronics: Potential way to make graphene superconducting | Science et Technique | Scoop.it
Scientists have discovered a potential way to make graphene -- a single layer of carbon atoms with great promise for future electronics -- superconducting, a state in which it would carry electricity with 100 percent efficiency.
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Nanoscale pillars could radically improve conversion of heat to electricity

Nanoscale pillars could radically improve conversion of heat to electricity | Science et Technique | Scoop.it
Scientists have found a creative way to radically improve thermoelectric materials, a finding that could one day lead to the development of improved solar panels, more energy-efficient cooling equipment, and even the creation of new devices that...
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Rice’s carbon nanotube fibers outperform copper in regards to carry electrical current

Rice’s carbon nanotube fibers outperform copper in regards to carry electrical current | Science et Technique | Scoop.it
On a pound-per-pound basis, carbon nanotube-based fibers invented at Rice University have greater capacity to carry electrical current than copper cables of the same mass, according to new research.

Via Dr. Stefan Gruenwald
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Caps not the culprit in nanotube chirality: New study narrows possibilities for gaining control of nanotube type

Caps not the culprit in nanotube chirality: New study narrows possibilities for gaining control of nanotube type | Science et Technique | Scoop.it
The energy involved in carbon cap formation does not dictate the chirality of a single-walled nanotube, according to theoretical research. The work contributes to the continuing search for a way to grow nanotubes of the same selected chirality.
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Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth

Semiconductors: First ever atom-by-atom simulation of ALD nanoscale film growth | Science et Technique | Scoop.it
Researchers have produced the first ever atom-by-atom simulation of nanoscale film growth by atomic layer deposition (ALD) -- a thin-film technology used in the production of silicon chips.
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New study reveals communications potential of graphene

New study reveals communications potential of graphene | Science et Technique | Scoop.it
Providing secure wireless connections and improving the efficiency of communication devices could be another application for graphene.
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Un nouvel hydrure métallique à teneur élevée en hydrogène (Sciences physique et de la matière)

Un nouvel hydrure métallique à teneur élevée en hydrogène (Sciences physique et de la matière) | Science et Technique | Scoop.it
L'équipe du Pr Eugene Gregoryanz, à l'Université d'Edimbourg, a produit pour la première fois un hydrure métallique ayant la stoechiométrie 1:3, c'est-à-dire un atome d'hydrogène pour trois atomes de métal, et une structure originale (voir Figure 1).
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Researchers develop first single-molecule LED

Researchers develop first single-molecule LED | Science et Technique | Scoop.it
The ultimate challenge in the race to miniaturize light emitting diodes (LED) has now been met: Scientists have developed the first ever single-molecule LED.
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La mine de récupération des métaux (Matériaux / Chimie)

La mine de récupération des métaux (Matériaux / Chimie) | Science et Technique | Scoop.it
Angela Serpe, chercheuse à l'université de Cagliari, est vice-présidente et Directrice Recherche et Développement de 3R Metals, spin-off de l'université sarde née en 2008 pour capitaliser une idée mûrie au cours d'années de recherche fondamentale :...
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Researchers model macroscale plasmonic convection to control fluid and particle motion

Researchers model macroscale plasmonic convection to control fluid and particle motion | Science et Technique | Scoop.it
Researchers have developed a new theoretical model that explains macroscale fluid convection induced by plasmonic (metal) nanostructures.
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Pourquoi les batteries lithium-ion vieillissent-elles ? (Energie)

Pourquoi les batteries lithium-ion vieillissent-elles ? (Energie) | Science et Technique | Scoop.it
Des chercheurs du Centre Helmholtz de recherche sur les matériaux et l'énergie (HZB) de Berlin se sont intéressés à la question du vieillissement des batteries lithium-ion.
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Ultra-thin light detectors: Metamaterials and quantum cascade structures combined for first time

Ultra-thin light detectors: Metamaterials and quantum cascade structures combined for first time | Science et Technique | Scoop.it
A new, extremely thin kind of light detectors has been developed. Two very different technologies were combined for the first time: metamaterials and quantum cascade structures.
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Nanoscale optical switch breaks miniaturization barrier

Nanoscale optical switch breaks miniaturization barrier | Science et Technique | Scoop.it
An ultra-fast and ultra-small optical switch has been invented that could advance the day when photons replace electrons in the innards of consumer products ranging from cell phones to automobiles.
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Graphene-metal sandwich: Combining graphene and copper may shrink electronics

Graphene-metal sandwich: Combining graphene and copper may shrink electronics | Science et Technique | Scoop.it
Researchers have discovered that creating a graphene-copper-graphene 'sandwich' strongly enhances the heat conducting properties of copper, a discovery that could further help in the downscaling of electronics.
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Liquid metal pump a breakthrough for micro-fluidics

Liquid metal pump a breakthrough for micro-fluidics | Science et Technique | Scoop.it
Scientists have developed the world's first liquid metal enabled pump, a revolutionary new micro-scale device with no mechanical parts.
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A novel form of artificial graphene: Two-Dimensional Semiconductors with a Honeycomb Nanogeometry

A novel form of artificial graphene: Two-Dimensional Semiconductors with a Honeycomb Nanogeometry | Science et Technique | Scoop.it
A new breed of ultra thin super-material has the potential to cause a technological revolution.

Via Dr. Stefan Gruenwald
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Ion beams pave way to new kinds of valves for use in spintronics

Ion beams pave way to new kinds of valves for use in spintronics | Science et Technique | Scoop.it
Researchers have tested a new approach to fabricating spin valves. Using ion beams, they structured an iron aluminum alloy in such a way as to subdivide the material into individually magnetizable regions at the nanometer scale.
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Multi-scale simulation software for chemistry research

Multi-scale simulation software for chemistry research | Science et Technique | Scoop.it
New software greatly expands the types of multi-scale QM/MM (mixed quantum and molecular mechanical) simulations of complex chemical systems that scientists can use to design new drugs, better chemicals, or improved enzymes for biofuels production.
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Nanoribbons of graphene conduct electricity ten times better than theory predicted

Nanoribbons of graphene conduct electricity ten times better than theory predicted | Science et Technique | Scoop.it
Physicists have produced nanoribbons of graphene — the single-atom-thick carbon — that conduct electrons better than theory predicted even for the most idealized form of the material.

Via Dr. Stefan Gruenwald
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Proteins snap those wrinkly fingers back into shape: Physicists model skin from wet to dry

Proteins snap those wrinkly fingers back into shape: Physicists model skin from wet to dry | Science et Technique | Scoop.it
You know how your fingers wrinkle up in the bath? The outer layer of your skin absorbs water and swells up, forming ridges -- but quickly returns to its old state when dry. Physicists have shown just why skin has this remarkable ability.
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Lab clocks 'hot' electrons: Plasmon-generated electrons timed moving from nanorods to graphene

Lab clocks 'hot' electrons: Plasmon-generated electrons timed moving from nanorods to graphene | Science et Technique | Scoop.it
Scientists time "hot" electrons as they transfer from excited plasmons in gold nanorods to graphene.
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Engineering new properties on ultra-thin nanomaterials: Tool opens door for design of new phases of materials

Engineering new properties on ultra-thin nanomaterials: Tool opens door for design of new phases of materials | Science et Technique | Scoop.it
Physicists have engineered novel magnetic and electronic phases in the ultra-thin films of in a specific electronic magnetic material, opening the door for researchers to design new classes of material for the next generation of electronic and...
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