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172 Current news about the topic nanotubes

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A reconfigurable soft actuator

Transforming flat elastomers into 3D shapes

06-Feb-2019

Mechanical systems, such as engines and motors, rely on two principal types of motions of stiff components: linear motion, which involves an object moving from one point to another in a straight line; and rotational motion, which involves an object rotating on an axis. Nature has developed far ...

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Arkema invests in development of lithium-sulfur batteries

24-Jan-2019

Arkema works alongside battery manufacturers, and contributes to optimizing battery performance thanks to its materials and innovative solutions. Arkema’s acquisition of a stake in Oxis Energy is consistent with this strategic ambition and this commitment to anticipating the technologies of ...

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Chemical synthesis of nanotubes

Nanometer-sized tubes made from simple benzene molecules

14-Jan-2019

For the first time, researchers used benzene - a common hydrocarbon - to create a novel kind of molecular nanotube, which could lead to new nanocarbon-based semiconductor applications. Researchers from the Department of Chemistry have been hard at work in their recently renovated lab in the ...

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A transparent flexible material of silk and nanotubes

Nanotube interactions with silk fibroins - key to flexible, degradable electronics

02-Nov-2018

The silk fibers produced by Bombyx mori, the domestic silkworm, has been prized for millennia as a strong yet lightweight and luxurious material. Although synthetic polymers like nylon and polyester are less costly, they do not compare to silk's natural qualities and mechanical properties. And ...

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Determining catalytic active sites using carbon nanotubes

A novel method to determine the cause of catalytic activity

12-Oct-2018

Catalytic research led by University of Oklahoma researcher Steven Crossley has developed a new and more definitive way to determine the active site in a complex catalyst. Catalysts consisting of metal particles supported on reducible oxides show promising performance for a variety of current and ...

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Nanotubes change the shape of water

Rice University engineers show how water molecules square up in nanotubes

28-Aug-2018

First, according to Rice University engineers, get a nanotube hole. Then insert water. If the nanotube is just the right width, the water molecules will align into a square rod. Rice materials scientist Rouzbeh Shahsavari and his team used molecular models to demonstrate their theory that weak ...

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Connecting the (Nano)dots

Big-picture thinking can advance nanoparticle manufacturing

24-Aug-2018

Nanoparticle manufacturing, the production of material units less than 100 nanometers in size (100,000 times smaller than a marble), is proving the adage that “good things come in small packages.” Today’s engineered nanoparticles are integral components of everything from the quantum dot ...

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Particles pull last drops of oil from well water

Nanoscale solution to ‘produced water’ problem

17-Aug-2018

Oil and water tend to separate, but they mix well enough to form stable oil-in-water emulsions in produced water from oil reservoirs to become a problem. Rice University scientists have developed a nanoparticle-based solution that reliably removes more than 99 percent of the emulsified oil that ...

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Nanotube 'rebar' makes graphene twice as tough

Material shows promise for flexible electronics

08-Aug-2018

Rice University researchers have found that fracture-resistant "rebar graphene" is more than twice as tough as pristine graphene. Graphene is a one-atom-thick sheet of carbon. On the two-dimensional scale, the material is stronger than steel, but because graphene is so thin, it is still subject ...

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Nearly pure nanotubes from unusual catalyst

30-Jul-2018

Growing a batch of carbon nanotubes that are all the same may not be as simple as researchers had hoped, according to Rice University scientists. Rice materials theorist Boris Yakobson and his team bucked a theory that when growing nanotubes in a furnace, a catalyst with a specific atomic ...

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