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Carbon-Nanotube Memory that Really Competes

January 27, 2009

Helsinki University of Technology researchers have created a carbon-nanotube based information storage comparable in speed to memory commonly used in memory cards and USB flash drives.

The memory scheme has a write-erase time of 100 nanoseconds, which is about 100,000 times faster than previously reported carbon-nanotube memory, and retains this ability over more than 10,000 write-erase cycles.

Carbon-nanotube artificial muscles

October 13, 2011


Researchers in Texas, Australia, Canada and Korea have constructed carbon-nanotube yarns to build artificial muscles that twist like the trunk of an elephant but provide a thousand times higher rotation per length.

The breakthrough shows promise for improved microfluidic pumps and valve drives, and other applications that require tiny motors, according to the researchers.

The research comes, in part, from the lab of UT Dallas professor… read more

Carbon-Based electronics manipulate electrons as waves

March 15, 2006

Using thin layers of graphite known as graphene, researchers have produced proof-of-principle transistors, loop devices and circuitry. The devices have the attractive properties of carbon nanotubes but could be produced using established microelectronics manufacturing techniques.

Ultimately, the researchers at the Georgia Institute of Technology in the United States, in collaboration with the Centre National de la Recherche Scientifique, hope to use graphene layers less than 10 atoms thick as… read more

Carbon Ring Storage Could Make Magnetic Memory 1,000 Times More Dense

June 30, 2009

A method of improving storage density by three orders of magnitude using cobalt dimers on hexagonal carbon rings has been developed by researchers at Leibniz Institute for Solid State and Materials Research.

Carbon nanotubes: the new asbestos?

May 21, 2008

Researchers led by Ken Donaldson of the University of Edinburgh’s Centre for Inflammation Research found that injecting long (more than 20 microns in length), straight, multi-walled carbon nanotubes can cause the same kind of damage as that inflicted by asbestos fibers when they are injected into the lung’s outer lining, called the mesothelium.

Andrew Maynard, co-author and chief scientific adviser for the project on emerging nanotechnologies at the Woodrow… read more

Carbon Nanotubes versus HIV

February 27, 2007

Researchers at Stanford University have used carbon nanotubes to transport RNA into human white blood cells, making the cells less susceptible to HIV attack.

Carbon nanotubes to replace silicon: IBM

October 29, 2012

IBM carbon nanotube: The substrate gets dipped in the carbon nanotube solution and the nanotubes attach via a chemical bond to the coating in the HfO2 trenches (credit: IBM)

IBM scientists have precisely placed and tested more than 10,000 carbon nanotube devices in a single chip, using standard semiconductor manufacturing processes — paving the way for carbon technology to replace silicon in future computing and allowing further miniaturization of computing components. The development promises to lead the way for future microelectronics, with controlled placement of individual nanotubes at a density of about a billion per square centimeter.

Carbon nanotubes to improve solar cells

January 17, 2002

Researchers from Cambridge University’s engineering department have developed photovoltaic devices that, when doped with single-wall carbon nanotubes (SWNTs), perform better than undoped devices.The nanotube diodes were made by depositing organic films containing SWNTs on to glass substrates coated with indium-tin oxide (ITO). Aluminium electrodes were then thermally evaporated under a vacuum to form a sandwich configuration, EE Times reports.

The interaction of the carbon nanotubes with the polymer poly(3-octylthiophene)… read more

Carbon nanotubes show promise for high-speed genetic sequencing

January 4, 2010

A new method for DNA sequencing in which a single-stranded ribbon of DNA is threaded through a carbon nanotube could be carried out thousands of times faster than existing methods at a fraction of the cost, if perfected, Arizona State University scientists say.

Carbon nanotubes rewrite memory rulebook

July 6, 2004

Carbon nanotube memory could be a panacea to all existing memory issues, start-up Nantero said, because it was cheap and did not lose its contents if turned off.

It’s faster than SRAM, it should be cheap and it doesn’t lose its contents when switched off. It should have an almost unlimited life, it should eventually be denser than DRAM, needs less power than DRAM and is resistant to radiation.… read more

Carbon nanotubes pinned down at last

June 1, 2006

A new process that bonds carbon nanotubes to silicon to create transistors could lead eventually lead to large-scale integration of nanoelectronic devices.

Carbon nanotubes may protect DNA from oxidation

November 16, 2012

Scanning electron microscope image of a typical sample of the NIST single-wall carbon nanotube soot standard reference material. Recent NIST research suggests that, at least in the laboratory, carbon nanotubes may help protect DNA molecules from damage by oxidation. The image shows an area just over a micrometer wide. (Color added for clarity.) (Credit: Credit: Vladar/NIST)

Single-wall carbon nanotubes (SWCNTs) may help protect DNA molecules from damage by oxidation, researchers at the National Institute of Standards and Technology (NIST) have found.

In nature, oxidation is a common chemical process in which a reactive chemical removes electrons from DNA and may increase the chance for mutations in cells.

More studies are needed to see if the in vitro protective effect of… read more

Carbon nanotubes may lead to better brain electrodes and neuroprosthetic devices

December 22, 2008

Researchers at the Ecole Polytechnique Federale de Lausanne (EPFL) have found that carbon nanotubes (CNTs), which are highly conductive and corrosion-resistant, form extremely tight contacts with neuronal cell membranes and could act as a new building block for novel “electrical bypass” systems for treating traumatic injury of the central nervous system.

CNTs could also replace metal parts in clinical applications such as deep brain stimulation for the treatment of… read more

Carbon nanotubes made into conductive, flexible ‘stained glass’

April 10, 2008

Northwestern University researchers have used metallic nanotubes to make thin films that are semitransparent, highly conductive, flexible and come in a variety of colors, with an appearance similar to stained glass.

These results could lead to improved, lower-cost products such as flat-panel displays and solar cells.

Carbon nanotubes light up

May 5, 2003

Scientists at IBM Research have obtained light from a carbon nanotube by a passing current through it. The device could be used to fabricate ultra-small optoelectronics devices for applications in high-speed communications.

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