The longest carbon nanotube in the world

The longest carbon nanotube in the world

Scientists at the University of California and doing research at Los Alamos National Laboratory in collaboration with other scientists at Duke University have succeeded in creating the longest single-layer carbon nanotube in the world - the nanotube in question measures four centimeters. Until this latest breakthrough, the maximum length of carbon nanotubes was only a few millimeters.

Single-layer carbon nanotubes have multitudes of revolutionary uses. But this new advance that has made it possible to develop longer nanotubes will allow the creation of new types of electro-mechanical systems at the nanoscale, such as micro-electric motors, nanoscale diodes and nanoconducting cables for wiring micro electronic devices.

Scientists have used a process called “catalytic chemical vapor deposition” (deposition chemical catalytic steam) using ethanolo steam (ethyl alcohol).

According to a member of the research team, Zhu, this discovery is only the beginning because the development of increasingly long carbon nanotubes could result in a myriad of applications that are still unknown to us. "The potential uses for long carbon nanotubes are only limited by our powers of imagination."

Long carbon nanotubes can be used to create a biochemical sensor on one part of the nanotube, while the rest of the nanotube serves as a conductor to transmit the signal. Other uses include applications in nanoscale electronics, where nanotubes can be used to drive or isolate materials. For example, joining two carbon nanotubes with different electronic properties could create nano-diodes (nano-scale diodes).

Video: Painting with carbon nanotubes, the blackest black paint. Jason Chase. TEDxNaperville (January 2022).