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259 Current news about the topic carbon nanotubes

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Synthesizing narrow ribbons of graphene using only light and heat

12-Dec-2017

Silicon -- the shiny, brittle metal commonly used to make semiconductors -- is an essential ingredient of modern-day electronics. But as electronic devices have become smaller and smaller, creating tiny silicon components that fit inside them has become more challenging and more expensive. Now, ...

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Fine felted nanotubes

New composite material made of carbon nanotubes

23-Nov-2017

Extremely lightweight, electrically highly conductive, and more stable than steel: due to their unique properties, carbon nanotubes would be ideal for numerous applications, from ultra-lightweight batteries to high-performance plastics, right through to medical implants. However, to date it has ...

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Motion sensors leap major step toward low-cost, high-performance wearable technology

17-Nov-2017

Researchers from the FAMU-FSU College of Engineering have developed a class of breakthrough motion sensors that could herald a near future of ubiquitous, fully integrated and affordable wearable technology. Engineers from FSU's High-Performance Materials Institute, in collaboration with ...

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Wrinkles give heat a jolt in pillared graphene

03-Nov-2017

Pillared graphene would transfer heat better if the theoretical material had a few asymmetric junctions that caused wrinkles, according to Rice University engineers. Rice materials scientist Rouzbeh Shahsavari and alumnus Navid Sakhavand first built atom-level computer models of pillared graphene ...

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A way to determine the toxicity of nanomaterials

03-Nov-2017

Official website of the Russian Science Foundation reports that a group of scientists from Siberian Federal University and Krasnoyarsk Scientific Center of the SB RAS has developed a bioluminescent enzymatic test system for assessing the toxicity of carbon nanomaterials. Its distinctive features ...

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Creative use of noise brings bio-inspired electronic improvement

27-Sep-2017

In conventional electronics, a great deal of effort is devoted to eliminating stochastic resonance (SR) -- the annoying hiss that generally hinders the detection of weak signals and degrades overall device performance. But, what if there were a way to exploit this effect to enhance signal ...

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How To Draw Electricity from the Bloodstream

A one-dimensional fluidic nanogenerator with a high power-conversion efficiency

11-Sep-2017

Men build dams and huge turbines to turn the energy of waterfalls and tides into electricity. To produce hydropower on a much smaller scale, Chinese scientists have now developed a lightweight power generator based on carbon nanotube fibers suitable to convert even the energy of flowing blood in ...

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Safer carbon nanomaterials, by design

08-Sep-2017

Carbon nanomaterials (CNMs) are a class of engineered nanomaterials that can be used for many environmental applications, including water treatment and contaminant sensing and remediation. While they are prized for their ability to detect, remove, or degrade contaminants in the environment, CNMs ...

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Outperforming nature's water filtration ability with nanotubes

29-Aug-2017

At just the right size, carbon nanotubes can filter water with better efficiency than biological proteins, a new study reveals. The results could pave the way to new water filtration systems, at a time when demands for fresh water pose a global threat to sustainable development. A class of ...

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Heavy metals in water meet their match

28-Jul-2017

Carbon nanotubes immobilized in a tuft of quartz fiber have the power to remove toxic heavy metals from water, according to researchers at Rice University. Prize-winning filters produced in the lab of Rice chemist Andrew Barron by then-high school student and lead author Perry Alagappan absorb ...

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