Axar.az
UP

British researchers reveal engine for future nano-machines

Home page Sports
12 Punto 14 Punto 16 Punto 18 Punto

Researchers at the University of Cambridge have revealed recently in a new study that they have built the world`s smallest engine.

The tiny engine, just a few billionths of a meter in size, uses light to power itself and could form the basis of future nano-machines that can navigate in water, sense the environment around them, or even enter living cells to fight disease.

The prototype device is made of tiny charged particles of gold, bound together with temperature-responsive polymers in the form of a gel.

When the tiny engine is heated to a certain temperature with a laser, it stores large amounts of elastic energy in a fraction of a second, as the polymer coatings expel all the water from the gel and collapse.

This has the effect of forcing the gold nanoparticles to bind together into tight clusters. When the device is cooled, the polymers take on water and expand, and the gold nanoparticles are strongly and quickly pushed apart, like a spring.

"We know that light can heat up water to power steam engines," said Dr. Ventsislav Valev, co-author of the study published in the journal PNAS earlier on Monday and now based at the University of Bath. "Now we can use light to power a piston engine at the nanoscale."

Professor Jeremy Baumberg from the Cavendish Laboratory at the University of Cambridge, who led the research, has named the devices `ANTs`, or actuating nano-transducers.

"Like real ants, they produce large forces for their weight. The challenge we now face is how to control that force for nano-machinery applications," he said in a statement.

Date
2016.05.08 / 16:51
Author
Axar.az
Comments
See also

New head coach of Neftchi has been announced

Marko Yankovich is officially in Karabakh - Photo

Lex - Karabakh match will be refereed by these referees

Messi and Suarez at Alba's wedding - Video

The poster of the WC-2022 was presented - Photo

Azerbaijani national football team defeated Belarus

Winner of Formula 1 Azerbaijan Grand Prix determined

Alonso broke Michael Schumacher's record

The Formula 1 Cup was dedicated to Shusha

Formula 1: Charles Leclerc made history in Baku

Latest
Xocalı soyqırımı — 1992-ci il Bağla
Bize yazin Bağla
ArxivBağla