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Carbon Nanotube Current Events, Carbon Nanotube News Articles.
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How many argon atoms can fit on the surface of a carbon nanotube?
Scientists have devised a way to explore how phase transitions -- changes of matter from one state to another without altering chemical makeup -- function in less than three dimensions and at the level of just a few atoms. (2010-01-28)

Nanotube flickering reveals single-molecule rendezvous
In this week's issue of Science, French and US researchers describe a new technique that allowed them to zoom in and observe quantum quasiparticles called excitons on individual carbon nanotubes. The team, which was led by Rice University chemist Bruce Weisman and University of Bordeaux physicist Laurent Cognet, found that each exciton travels about 90 nanometers and visits around 10,000 carbon atoms during its 100-trillionth-of-a-second lifespan. (2007-06-07)

Rice develops first method to sort nanotubes by size
Rice University scientists have developed the first method for sorting semiconducting carbon nanotubes based on their size, a long-awaited development that could form the basis of a nanotube purification system capable of producing the necessary feedstocks for nano-circuits, therapeutic agents, next-generation power cables and more. The research is published online by the Journal of the American Chemical Society. (2006-06-23)

Research shows black plastics could create renewable energy
New study looks at how plastics can be recycled and could help reduce plastic waste. (2019-07-16)

Nanotube, heal thyself
Pound for pound, carbon nanotubes are stronger and lighter than steel, but unlike other materials, the miniscule carbon cylinders remain remarkably robust even when chunks of their bodies are blasted away with heat or radiation. A Rice University study in the Feb. 16 issue of Physical Review Letters offers the first explanation: tiny blemishes crawl over the skin of the damaged nanotubes, sewing up larger holes as they go. (2007-02-15)

Graphene substrate improves the conductivity of carbon nanotube network
Scientists at Aalto University, Finland, and the University of Vienna, Austria, have combined graphene and single-walled carbon nanotubes into a transparent hybrid material with conductivity higher than either component exhibits separately. (2019-10-09)

Nanotubes can solder themselves, markedly improving device performance
University of Illinois researchers have developed a way to heal gaps in wires too small for even the world's tiniest soldering iron. Junctions between nanotubes have high resistance, slowing down the current and creating hotspots. The researchers use these hot spots to trigger a local chemical reaction that deposits metal that nano-solders the junctions. (2013-11-25)

Nanotube composites increase the efficiency of next generation of solar cells
Carbon nanotubes are becoming increasingly attractive for photovoltaic solar cells as a replacement to silicon. Researchers at Umea University in Sweden have discovered that controlled placement of the carbon nanotubes into nano-structures produces a huge boost in electronic performance. Their groundbreaking results are published in the prestigious journal Advanced Materials. (2014-03-18)

Researchers create the first thermal nanomotor in the world
Researchers from the UAB Research Park have created the first nanomotor that is propelled by changes in temperature. A carbon nanotube is capable of transporting cargo and rotating like a conventional motor, but is a million times smaller than the head of a needle. This research opens the door to the creation of new nanometric devices designed to carry out mechanical tasks and which could be applied to the fields of biomedicine or new materials. (2008-04-15)

Northeastern University researchers develop novel method for working with nanotubes
Northeastern University researchers have developed a novel method for controllably constructing precise inter-nanotube junctions and a variety of nanocarbon structures in carbon nanotube arrays. The researchers were able to tailor the physical properties of nanotube networks for use in applications from electronic devices to carbon nanotube-reinforced composite materials found in cars and sports equipment. The findings were published in a Nature Communications paper titled 'Sculpting carbon bonds for allotropic transformation through solid-state re-engineering of -sp2 carbon.' (2014-09-15)

Physics tip sheet #35
Highlights of this tip sheet include heartbeat analysis to predict mortality rate, a new type of superconductor, growing nanobubbles and clouds, and new research on carbon nanotube transistors suggesting that size doesn't matter. (2003-07-11)

Engineers now understand how complex carbon nanostructures form
Carbon nanotubes (CNTs) are microscopic tubular structures that engineers 'grow' through a process conducted in a high-temperature furnace. The forces that create the CNT structures known as 'forests' often are unpredictable and are mostly left to chance. Now, a University of Missouri researcher has developed a way to predict how these complicated structures are formed. By understanding how CNT arrays are created, engineers can better incorporate the highly adaptable material into devices and products. (2015-04-09)

Rice deciphers optical spectra of carbon nanotubes
Building upon this summer's groundbreaking finding that carbon nanotubes are fluorescent, chemists at Rice University have precisely identified the optical signatures of 33 (2002-11-28)

Reusable carbon nanotubes could be the water filter of the future, says RIT study
Enhanced single-walled carbon nanotubes offer a more effective and sustainable approach to water treatment and remediation than the standard industry materials -- silicon gels and activated carbon -- according to a paper by RIT researchers John-David Rocha and Reginald Rogers. (2017-03-29)

For first time, carbon nanotube transistors outperform silicon
For decades, scientists have tried to harness the unique properties of carbon nanotubes to create high-performance electronics that are faster or consume less power. Now, for the first time, University of Wisconsin-Madison materials engineers have created carbon nanotube transistors that outperform state-of-the-art silicon transistors. (2016-09-02)

Researchers uncover secrets behind nanotube formation
A multinational team of scientists has discovered that multi-walled carbon nanotubes made by the pure carbon arc method are, in fact, carbon crystals that form inside drops of glass-coated liquid carbon. The research appears in the 11 February 2005 issue of the journal Science. (2005-02-10)

Toward world's smallest radio: nano-sized detector turns radio waves into music
Researchers in California report development of the world's first working radio system that receives radio waves wirelessly and converts them to sound signals through a nano-sized detector made of carbon nanotubes. The 'carbon nanotube radio' device is thousands of times smaller than the diameter of a human hair. The development marks an important step in the evolution of nano-electronics and could lead to the production of the world's smallest radio, the scientists say. (2007-10-17)

Nature: Smallest vibration sensor in the quantum world
Carbon nanotubes and magnetic molecules are considered building blocks of future nanoelectronic systems. Their electric and mechanical properties play an important role. Researchers of Karlsruhe Institute of Technology and French colleagues from Grenoble and Strasbourg have now found a way to combine both components on the atomic level and to build a quantum mechanical system with novel properties. It is reported now in the print version of Nature Nanotechnology journal. (2013-03-15)

Mass production of new class of semiconductors closer to reality
Two Waterloo chemists have made it easier for manufacturers to produce a new class of faster and cheaper semiconductors. (2018-02-09)

Detection of DNA on nanotubes offers new sensing, sequencing technologies
Researchers at the University of Illinois at Urbana-Champaign who recently reported that DNA-wrapped carbon nanotubes could serve as sensors in living cells now say the tiny tubes can be used to target specific DNA sequences. Potential applications for the new sensors range from rapid detection of hazardous biological agents to simpler and more efficient forensic identification. (2006-02-21)

Improving the electrical and mechanical properties of carbon-nanotube-based fibers
University of Illinois researchers at the Beckman Institute for Advanced Science and Technology recently developed a technique that can be used to build carbon-nanotube-based fibers by creating chemical crosslinks. The technique improves the electrical and mechanical properties of these materials. (2020-02-18)

Patent for arrays of nanoscale electrical probes awarded to NJIT today
Reginald C. Farrow and Zafer Iqbal, research professors at NJIT, were awarded a patent today for an improved method of fabricating arrays of nanoscale electrical probes. (2011-06-21)

NIST releases first certified reference material for single-wall carbon nanotubes
NIST has issued the world's first reference material for single-wall carbon nanotube soot. The new NIST material offers companies and researchers a badly needed source of uniform and well-characterized carbon nanotube soot for material comparisons, as well as chemical and toxicity analysis. (2011-12-21)

Cells selectively absorb short nanotubes
DNA-wrapped single-walled carbon nanotubes (SWCNTs) shorter than about 200 nanometers readily enter into human lung cells and so may pose an increased risk to health, according to scientists at NIST. (2007-03-30)

MIT researchers make carbon nanotubes without metal catalyst
Researchers at MIT have for the first time shown that nanotubes can grow without a metal catalyst. The researchers demonstrate that zirconium oxide, the same compound found in cubic zirconia (2009-08-10)

High-speed nanotube transistors could lead to better cell phones, faster computers
Scientists have demonstrated, for the first time, that transistors made from singe-walled carbon nanotubes can operate at extremely fast microwave frequencies, opening up the potential for better cell phones and much faster computers, perhaps as much as 1,000 times faster. (2004-04-27)

Easier, faster, cheaper: A full-filling approach to making nanotubes of consistent quality
To prevent filling of the cores of single-wall carbon nanotubes with water or other detrimental substances, researchers advise intentionally prefilling them with a desired chemical of known properties. Taking this step before separating and dispersing the materials, yields a consistently uniform collection of nanotubes. In quantity and quality, the results are superior to water-filled nanotubes, especially for optical applications such as sensors and photodetectors. (2016-07-15)

The sensitive side of carbon nanotubes: Creating powerful pressure sensors
Blocks of carbon nanotubes can be used to create effective and powerful pressure sensors, according to a new study by researchers at Rensselaer Polytechnic Institute. Taking advantage of the material's unique electrical and mechanical properties, researchers repeatedly squeezed a 3-millimeter nanotube block and discovered it was highly suitable for potential applications as a pressure sensor. No matter how many times or how hard they squeezed the block, it exhibited a constant, linear relationship between how much force was applied and electrical resistance. (2007-10-23)

Tiny tubes move into the fast lane
For the first time, Lawrence Livermore National Laboratory researchers have shown that carbon nanotubes as small as eight-tenths of a nanometer in diameter can transport protons faster than bulk water, by an order of magnitude. (2016-04-04)

DNA used to create self-assembling nano transistor
Scientists at the Technion-Israel Institute of Technology have harnessed the power of DNA to create a self-assembling nanoscale transistor, the building block of electronics. The research, published in the Nov. 21, 2003 issue of Science, is a crucial step in the development of nanoscale devices. (2003-11-20)

Penn researchers introduce a new nanotube-laced gel, create new means of aligning nanotubes
Penn researchers have devised a new method for aligning isolated single wall carbon nanotubes and, in the process, have created a new kind of material with liquid crystal-like properties, which they call nematic nanotube gels. (2004-03-01)

Move aside carbon: Boron nitride-reinforced materials are even stronger
When mixed with lightweight polymers, tiny carbon tubes reinforce the material, promising lightweight and strong materials for airplanes, spaceships, cars and even sports equipment. While such carbon nanotube-polymer nanocomposites have attracted enormous interest from the materials research community, a group of scientists now has evidence that a different nanotube -- made from boron nitride -- could offer even more strength per unit of weight. They publish their results in the journal Applied Physics Letters. (2015-12-22)

Scientists observe single ions moving through tiny carbon-nanotube channel
For the first time, a team of MIT chemical engineers has observed single ions marching through a tiny carbon-nanotube channel. Such channels could be used as extremely sensitive detectors or as part of a new water-desalination system. They could also allow scientists to study chemical reactions at the single-molecule level. (2010-09-09)

NREL reveals potential for capturing waste heat via nanotubes
A finely tuned carbon nanotube thin film has the potential to act as a thermoelectric power generator that captures and uses waste heat, according to researchers at the Energy Department's National Renewable Energy Laboratory. (2016-04-05)

Drawing a line, with carbon nanotubes
MIT researchers have designed a new type of pencil lead in which graphite is replaced with a compressed powder of carbon nanotubes. The lead, which can be used with a regular mechanical pencil, can inscribe sensors on any paper surface. (2012-10-09)

NIST laser-based method cleans up grubby nanotubes
Researchers at NIST and the National Renewable Energy Laboratory have demonstrated a simple method of cleaning nanotubes by zapping them with carefully calibrated laser pulses. (2006-12-22)

Improved method of delivering anti-cancer drugs
A new non-toxic method for delivering anti-cancer drugs to specific parts of the human body could mean the end of the severe and nasty side effects associated with many cancer therapies, according to researchers at Cardiff University's School of Pharmacy and Pharmaceutical Sciences. (2018-04-18)

Smarter memory device holds key to greener gadgets
Fast, low-energy memory for MP3s, smartphones and cameras could become a reality thanks to a development by scientists. (2011-03-28)

DuPont-led scientists unveil key nanotechnology discovery with use of DNA
A group of DuPont-led scientists have discovered an innovative way to advance nano-electronics applications through the use of DNA that sorts carbon nanotubes. This research appears in the current journal of SCIENCE. Carbon nanotubes possess excellent electrical properties for nano-electronic applications, including sensitive medical diagnostic devices and mini-transistors over 100 times tinier than in today's microchips. However, carbon nanotubes of different electronic types randomly clump together, deterring consistent conductivity. Sorting carbon nanotubes allows for uniform conductivity. (2003-12-02)

Penn researchers take a big step forward in making smaller circuits
In the race to take advantage of the amazing electric properties of nanotubes, researchers at the University of Pennsylvania developed a new method to create functional nanotube circuits. The physicists overcame some of hurdles of working with nanotubes - particularly their size - by dipping semiconductor chips into liquid suspensions of carbon nanotubes. Their findings represent a big step toward creating things like nanoscale chemical sensors, flexible electronics and high-density microprocessors. (2005-07-29)

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