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...
Read article: Industrial revolutions in the 21st century
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
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...
Wave-particle duality seen in carbon-60 molecules
The Vienna team sent a collimated beam of carbon-60 molecules through a slit made of silicon nitride and detected the interference pattern by ionizing the molecules with a laser and then counting the ...
Quantum dots breakthrough
Only two other methods have previously been used to manufacture quantum dots: electron beam lithography and epitaxy. Lithography is a top down approach in which the beam defines the dot pattern, where...
New angle for optical memories
The medium is made of nanocrystals of zinc sulphide doped with samarium. Although the nanocrystals are only 3 nanometres long, they clump together into larger particles to form a powder that can be us...
