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52 Current news about the topic functional materials

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Squid skin could be the solution to camouflage material

01-Mar-2018

Cephalopods -- which include octopuses, squid, and cuttlefish -- are masters of disguise. They can camouflage to precisely match their surroundings in a matter of seconds, and no scientist has quite been able to replicate the spectacle. But new research by Leila Deravi, assistant professor of ...

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Charge order and electron localization in a molecule-based solid

23-Jan-2018

Charge ordering in cationic mixed-valence compounds is of crucial importance for materials science. The prototypic example for a transition from a charge-disordered to a charge-ordered state has been magnetite, Fe3O4, where Evert Verwey observed a sudden jump in resistivity near -150°C. In the ...

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Harnessing the rattling motion of oxygen ions to convert T-rays to visible light

01-Dec-2017

Scientists have successfully visualized terahertz radiation, popularly known as T-rays, using a crystal called mayenite (Ca12Al14O33). Their method cleverly utilizes the rattling motion caused by the vibration of oxygen ions inside the cage-like structures of the crystal. In recent years, there ...

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A material with promising properties

Successful synthesis of an important ferromagnetic semiconductor

23-Nov-2017

The Collaborative Research Centre CRC 1214 at the University of Konstanz has developed a method for synthesising Europium (II) oxide nanoparticles - a ferromagnetic semiconductor that is relevant for data storage and data transport Ferromagnetic semiconductors have attracted increasing attention ...

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'Ion billiards' cue novel material synthesis method

21-Nov-2017

A team of Hokkaido University researchers has developed a novel material synthesis method called proton-driven ion introduction (PDII) which utilizes a phenomenon similar to "ion billiards." The new method could pave the way for creating numerous new materials, thus drastically advancing ...

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Printing a better actuator, actually

15-Nov-2017

One technology uses magnetic fields to generate mechanical work. The other enhances the magnetic properties of 3D-printed materials. Combined, they could lead to efficient, economical production of magnetic actuators used in everything from sensors, robotics, and mechanical devices to power ...

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Assembly of nanoparticles proceeds like a zipper

26-Sep-2017

It has always been the Holy Grail of materials science to describe and control the material's structure-function relationship. Nanoparticles are an attractive class of components to be used in functional materials because they exhibit size-dependent properties, such as superparamagnetism and ...

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Green light for ultra-fine display colors

08-Sep-2017

Chih-Jen Shih is very satisfied with his breakthrough: "To date, no one has succeeded in producing green light as pure as we have," says the Professor of Chemical Engineering in his laboratory at ETH Zurich. He points at an ultra-slim, bendable light-emitting diode (LED), which displays the three ...

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Lightweight Catalyst for Artificial Photosynthesis

Carbonitride aerogels mediate the photocatalytic conversion of water

07-Aug-2017

Nanochemistry meets macrostructures: Chinese scientists report the synthesis of a macroscopic aerogel from carbonitride nanomaterials which is an excellent catalyst for the water-splitting reaction under visible-light irradiation. The study adds new opportunities to the material properties of ...

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New strategy to design mechano-responsive luminescent materials

27-Jul-2017

"Smart" materials that change color in response to a mechanical stimulus have a broad range of applications such as creating pressure-sensitive sensors and packaging that can detect tampering. Researchers at Hokkaido University have now designed a novel "mechano-responsive luminescent material" ...

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