Tag Archive

Laser-activated nanotube speakers could be invisibly embedded in windows and walls

It is known that intense sound can be produced by electrically-powered nanotubes stretched into sheets, but researchers from University of Texas at Dallas (UT Dallas) have furthered this principle by arranging sheets of carbon nanotubes into “forests” which produce high-quality sound when struck with lasers. This is an exciting advancement [...]

Carbon nanotubes offer new way to produce electricity

Scientists have discovered that a moving pulse of heat traveling along the miniscule wires known as carbon nanotubes can cause powerful waves of energy.
These “thermopower waves” can drive electrons along like a collection of flotsam propelled along the surface of ocean waves, creating an electrical current. The previously unknown phenomenon [...]

Biosensor paper strip test for safe drinking water

Engineers at the University of Michigan have developed a strip of paper infused with carbon nanotubes that can quickly and inexpensively detect a toxin produced by algae in drinking water. The paper strips perform 28 times faster than the complicated method most commonly used today to detect microcystin-LR, a chemical compound produced by the blue-green [...]

Carbon nanotubes used to make batteries from fabrics

Image via Wikipedia

Ordinary cotton and polyester fabrics have been turned into batteries that retain their flexibility.
The demonstration is a boost to the nascent field of “wearable electronics” in which devices are integrated into clothing and textiles.
The approach is based on dipping fabrics in an “ink” of tiny tubes of carbon, and was first demonstrated last [...]

Dip Ordinary Paper Into Ink Infused With Nanotubes and Nanowires to Create an Instant Battery

Image via Wikipedia

Stanford scientists are harnessing nanotechnology to quickly produce ultra-lightweight, bendable batteries and supercapacitors in the form of everyday paper.
Simply coating a sheet of paper with ink made of carbon nanotubes and silver nanowires makes a highly conductive storage device, said Yi Cui, assistant professor of materials science and engineering.
“Society really needs a low-cost, [...]