Researchers at Rice University have precisely identified the optical signatures of 33 'species' of light-emitting carbon nanotubes, revolutionizing the field of nanotechnology. This breakthrough enables chemists to measure nanotubes using simple and faster methods, accelerating research in this rapidly evolving field.
Duke researchers have made significant progress in synthesizing uniform 'buckytubes' using a new technique, which could lead to the development of smaller electronic circuitry and more precise control over their electronic properties. The achievement marks an important step towards realizing the full potential of carbon nanotubes.
The Fenniri team has discovered a new class of nanotubes formed from synthetic organic molecules, enabling complete control over their formation and properties. These nanotubes can be customized to possess different physical and chemical properties, making them suitable for various industrial applications.
Research at six experimental field sites found that trees and shrubs invading grasslands in wet environments can lead to significant losses of soil organic carbon, offsetting the carbon stored in growing wood. This challenges previous estimates suggesting that woody encroachment could balance emissions.
Researchers at Rice University have discovered that carbon nanotubes can fluoresce in the near-infrared spectrum, which could lead to the development of inexpensive and simple diagnostic tests for diseases. This technology has the potential to target specific targets within the body, such as tumor cells or inflamed tissues.
Researchers have successfully generated intense electron beams from carbon nanotubes to produce high-quality X-rays. The technology offers advantages such as reduced heat generation, increased resolution and cost-effectiveness.
Researchers at Washington University in St. Louis have successfully made boron nanowhiskers, the world's first crystalline nanowires, exhibiting semiconducting behavior and potential as key materials in nanoelectronics. The discovery could lead to the development of more reliable conductors, solving limitations faced by carbon nanotubes.
Scientists at Rensselaer Polytechnic Institute have created a breakthrough method for producing long, hair-like strands of carbon nanotubes up to 20 centimeters in length. This simplified approach uses chemical vapor deposition (CVD) with a sulfur-containing compound and hydrogen, resulting in high yields of long strands.
Researchers at Rensselaer Polytechnic Institute have discovered that single-walled carbon nanotubes (SWCN) emit a loud pop and then ignite when exposed to a conventional photographic flash. This phenomenon, known as the photo-acoustic effect, has been observed for decades but not previously associated with carbon nanotubes.
Carbon nanotubes have been shown to exhibit exceptional mechanical properties, enabling the creation of high-speed electronic devices. The breakthrough could lead to the development of hand-held DNA detectors, superfast optical detectors, and computer chip speeds faster than current Pentium processors.
Researchers at the University of Pennsylvania have developed a new type of epoxy that is three times harder and conducts heat significantly better than regular epoxy. The addition of carbon nanotubes to the adhesive yields enhanced thermal conductivity and mechanical strength.
Rice chemists create polyfullerenes by joining C-60 molecules in polymer chains and planes, making them more stable than organic polymers. Fluorination of these polyfullerenes enables the creation of dozens of 'designer' nanotube derivatives with various side chains, making them soluble in traditional organic solvents.
Dai and his team have developed a system to control the synthesis of carbon nanotubes, enabling their use in sensing technologies. One type of nanotube structure shows promise as a sensor for detecting nitrogen dioxide, a common pollutant in vehicle exhaust.
Rensselaer Polytechnic Institute researchers have developed a method to grow carbon nanotubes up, out, and in all three dimensions, providing unprecedented control over their growth. This breakthrough could lead to the creation of Lilliputian devices and complex networks comprised of molecular units.
The researchers fabricated superconducting nanowires from specially prepared fluorinated carbon nanotubes, which are insulators. This technique allows for the fabrication of even thinner nanowires and sheds new light on superconducting phase transitions.
Researchers at Purdue University develop self-assembling nanotubes that can be easily manipulated to create custom-built molecular wires and components. The nanotubes, stable under high temperatures, may pave the way for designing new materials and electronic devices.
Researchers at the University of North Carolina at Chapel Hill have discovered that carbon nanotubes can store more energy than conventional graphite electrodes, potentially leading to longer-lasting batteries. The study found that carbon nanotubes can contain roughly twice the energy density of graphite.
Researchers at Penn and Illinois have created nanoscale peapods that exhibit tunable electronic properties. By manipulating encapsulated molecules, they can engineer electron motion inside nanotubes in a predictable way.
Researchers have found that encapsulating molecules within carbon nanotubes can dramatically modify their electronic properties. This discovery could lead to the design of single-molecule-based devices and hybrid nanostructures with tailored electronic functions.
A team of researchers discovered a new type of carbon nanotube that is approximately 40 percent stronger than other nanotubes made using the same number of atoms. This breakthrough was achieved through supercomputer simulations at the San Diego Supercomputer Center and the University of Michigan.
The report recommends four main areas of focus for the Carbon Trust: RD&D programme, skills development, international cooperation, and social and economic research. It also identifies promising low-carbon technologies, including renewable energy, energy efficiency, and hydrogen production.
Paul McEuen's research group has developed a method to count individual electrons in carbon nanotubes using an atomic force microscope. This breakthrough enables scientists to study the basic physics of electron behavior and advance the field of nanoelectronics.
Researchers at UNC-CH find that electrical resistance varies according to how nanotubes are oriented on a flat surface, with peaks six times as much when rotated 360 degrees. This discovery could be useful for telecommunications and electronics industries.
Researchers have measured the comparative bending strength of tiny carbon nanotubes using a technique based on mechanical resonance induced by an oscillating electrical voltage. The study provides information that will help materials scientists select the best variety of nanotube for new applications.
Researchers from the University of Pennsylvania discovered that carbon nanotubes can conduct heat exceptionally well, potentially addressing overheating issues in microchips. The discovery could lead to applications in various fields, including electric motors and aircraft components.
Physicists at UC Berkeley have created minuscule bearings and springs made from carbon nanotubes, which can reduce friction in microscopic machines. The bearings and springs, which appear to move with no wear and tear, could be crucial components of MEMS devices and NEMS systems.
Researchers at UNC-CH develop new technique to measure electronic properties of single-walled carbon nanotubes using C-13 nuclear magnetic resonance. The study finds that the mass ratios of metallic and semiconducting tubes can be controlled, enabling the production of materials with tunable structures.
A new study reveals that North America does not absorb as much carbon dioxide as it emits, contradicting long-held assumptions. The research found that natural processes can only account for a small fraction of the released carbon dioxide, highlighting the complexity of climate change.
Researchers determine tensile strength of individual carbon nanotubes, finding they can withstand forces up to 63 GPa before breaking. This discovery suggests potential applications for ultra-lightweight, high-strength cables and composites.
Researchers have reported the highest and most stable electron emission densities observed to date, desirable for flat-panel displays and microwave amplifiers. The carbon nanotubes' sharp tip and chemical robustness contribute to their superior stability and uniform emission.
Scientists have developed sheets of single-walled nanotubes that generate higher stresses than natural muscle and higher strains than high-modulus ferroelectrics. The carbon nanotube actuators work in aqueous environments, including salt water, and require small voltages to produce large length changes.
Researchers have created a technique to measure the electrical characteristics of individual carbon nanotubes, confirming their potential in making small circuits and computer chips. The new method enables scientists to conduct electricity without heating up, addressing a major obstacle in producing smaller electronic components.
Scientists at Georgia Tech create a device that can accurately measure the mass of small particles by inducing resonance in individual carbon nanotubes. This technique has potential for weighing viruses and other sub-micron scale particles.
A new study reveals that carbon nanotubes are more energetic to roll across surfaces compared to sliding, defying conventional wisdom on friction reduction. Researchers discovered this phenomenon using the nanoManipulator device and attributed it to electron surface interactions.
Researchers at UB have successfully developed perfectly aligned carbon nanotubes, bringing researchers closer to developing flat panel displays with excellent viewing angles and high resolution. The technical advances made by the team will help make flat panel displays made with carbon nanotubes affordable, using glass as a substrate.
Researchers observed ballistic conductance in multi-walled carbon nanotubes at room temperature, allowing large current densities to flow without heating. This phenomenon could lead to ultra-small electronic devices with improved performance and efficiency.
A recent USGS study found that a subalpine wetland in Colorado's Rocky Mountain National Park was a net source of carbon to the atmosphere during a two-year period, despite being a net carbon sink for thousands of years. The study suggests that climate change may be affecting the carbon balance of these wetlands.
Researchers discovered atom-sized electronic devices on nanotubes, which can conduct electricity like metals or act as semiconductors. This breakthrough may lead to smaller, more efficient devices and reduce heat-related issues.
Researchers at UNC-CH have discovered that carbon nanotubes can bend without breaking and then return to their original shape under large strains. The nanotubes' buckling behavior indicates potential for safer, stronger products, including those used in sports and aerospace materials.
Scientists have successfully carried out a chemical reaction in the world's smallest test tubes, carbon nanotubes with diameters less than ten nanometers. The research could lead to the production of new types of nanoscale devices, such as metallic wires and electronic emitters.