Nano-transistor self-assembles using biology

November 21, 2003 | Source: news

A functional electronic nano-device has been manufactured using biological self-assembly for the first time. It harnesses the construction capabilities of DNA and the electronic properties of carbon nanotubes to create a self-assembling nano-transistor.

The team used proteins to allow carbon nanotubes to bind to specific sites on strands of DNA. They then turned the remainder of the DNA molecule into a conducting wire. The team has already connected two of the devices together, using the biological technique. They expect to create elaborate self-assembling DNA sculptures and circuitry.