Carbon nanotubes roll on
The remarkable properties of carbon nanotubes may allow them to play a crucial role in the relentless drive towards miniaturization at the nanometre scale
Read article: Carbon nanotubes roll on
Read article: Carbon nanotubes roll on
Multiwall carbon nanotubes
The unique mechanical and electronic properties of multiwall nanotubes are proving to be a rich source of new physics and could also lead to new applications in materials and devices
Read article: Multiwall carbon nanotubes
Snooker moves to the atomic scale
Scanning tunnelling microscopes (STMs) rely on an ultrafine ‘tip’ to push atoms over a surface. The atoms are pushed either by the tip itself, or by an electric field. The new technique re...
Fractional effects in nanotubes explained
The quantum of conductance, G0, is defined by a simple equation: G0=2e2/h, where e is the charge on the electron and h is the Planck constant. The conductance of an individual nanotube is predicted to...
Conductivity measurements made on a single strand of DNA
The Delft group fabricated the electrodes by making a slit in a silicon nitride film with standard lithography. A series of platinum layers were then sputtered across the slit until the gap was reduce...
Nanotubes get smaller
The 0.5 nm nanotube was made by boring a hole into a graphite rod. The hole was then filled with cobalt metal powder – which acts as a catalyst – and a mixture of nanotubes and other carbo...
Industrial revolutions in the 21st century
Advances in nanotechnology, information science and molecular biology continue at a rapid rate and are poised to spark a series of industrial revolutions in the next millennium
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Storing fuel in nanotubes
Carbon nanotubes are rolled up sheets of graphite that can have lengths of about 30-100 nanometers and diameters of about a nanometer. Two years ago it was discovered that carbon nanofibres – wh...
Could carbon-60 molecules be used in particle physics?
As the highly energetic particles pass through conventional carbon-rich rocks, they would form carbon-60 molecules in their wake. The fact that these geological detectors have been “collecting d...
