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235 Current news about the topic carbon nanotubes

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Graphene foam gets big and tough

16-Feb-2017

A chunk of conductive graphene foam reinforced by carbon nanotubes can support more than 3,000 times its own weight and easily bounce back to its original height, according to Rice University scientists. Better yet, it can be made in just about any shape and size, they reported, demonstrating a ...

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Cell-tracking agents get a boost

31-Jan-2017

Rice University researchers have synthesized a new and greatly improved generation of contrast agents for tagging and real-time tracking of stem cells in the body. The agent combines ultrashort carbon nanotubes and bismuth clusters that show up on X-rays taken with computed tomography (CT) ...

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3-D printing and nanotechnology, a mighty alliance to detect toxic liquids

12-Jan-2017

Carbon nanotubes have made headlines in scientific journals for a long time, as has 3D printing. But when both combine with the right polymer, in this case a thermoplastic, something special occurs: electrical conductivity increases and makes it possible to monitor liquids in real time. This is a ...

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Nano-chimneys can cool circuits

06-Jan-2017

A few nanoscale adjustments may be all that is required to make graphene-nanotube junctions excel at transferring heat, according to Rice University scientists. The Rice lab of theoretical physicist Boris Yakobson found that putting a cone-like "chimney" between the graphene and nanotube all but ...

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New approach captures the energy of slow motion

22-Dec-2016

A new concept in energy harvesting could capture energy currently wasted due to its characteristic low frequency and use it to power next-generation electronic devices, according to a team of Penn State materials scientists and electrical engineers. The project, funded by Samsung, designed a ...

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Inside tiny tubes, water turns solid when it should be boiling

30-Nov-2016

It's a well-known fact that water, at sea level, starts to boil at a temperature of 212 degrees Fahrenheit, or 100 degrees Celsius. And scientists have long observed that when water is confined in very small spaces, its boiling and freezing points can change a bit, usually dropping by around 10 C ...

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'Pressure-welding' nanotubes creates ultrastrong material

10-Nov-2016

Researchers from the Moscow Institute of Physics and Technology (MIPT), Technological Institute for Superhard and Novel Carbon Materials (TISNCM), Lomonosov Moscow State University (MSU), and the National University of Science and Technology MISiS have shown that an ultrastrong material can be ...

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Nanobionic spinach plants can detect explosives

After sensing dangerous chemicals, the carbon-nanotube-enhanced plants send an alert.

01-Nov-2016

Spinach is no longer just a superfood: By embedding leaves with carbon nanotubes, MIT engineers have transformed spinach plants into sensors that can detect explosives and wirelessly relay that information to a handheld device similar to a smartphone. This is one of the first demonstrations of ...

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Smallest. Transistor. Ever.

Research breaks major barrier in transistor size by creating gate only 1 nanometer long

11-Oct-2016

For more than a decade, engineers have been eyeing the finish line in the race to shrink the size of components in integrated circuits. They knew that the laws of physics had set a 5-nanometer threshold on the size of transistor gates among conventional semiconductors, about one-quarter the size ...

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First quantum photonic circuit with electrically driven light source

Researchers overcome limiting factor on the way to an optical quantum computer

28-Sep-2016

Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast calculations involving enormous quantities of data or so-called quantum simulation, which allows highly complex systems to be reproduced on ...

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