Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

University of Portsmouth develops DNA switch to interface living organisms with computers

26.10.2006
Researchers at the University of Portsmouth have developed an electronic switch based on DNA - a world-first bio-nanotechnology breakthrough that provides the foundation for the interface between living organisms and the computer world.

The new technology is called a ‘nanoactuator’ or a molecular dynamo. The device is invisible to the naked eye - about one thousandth of a strand of human hair.

The DNA switch has been developed by British Molecular Biotechnology expert Dr Keith Firman at the University of Portsmouth working in collaboration with other European researchers.

Dr Firman and his international team have been awarded a €2 million (£1.36m) European Commission grant under its New and Emerging Science ad Technology (NEST) initiative to further develop this ground-breaking new technology.

But the DNA switch has immediate practical application in toxin detection, and could be used in a biodefence role as a biological sensor to detect airborne pathogens.

The future applications are also considerable, including molecular scale mechanical devices for interfacing to computer-controlled artificial limbs.

‘The possibilities are very exciting. The nanoactuator we have developed can be used as a communicator between the biological and silicon worlds,’ Dr Firman said.

‘I could see it providing an interface between muscle and external devices, but it has to be pointed out that such an application is still 20 or 30 years away.’

The molecular switch comprises of a strand of DNA anchored in a miniscule channel of a microchip, a magnetic bead, and a biological motor powered by the naturally occurring energy source found in living cells, adenosine triphosphate (ATP).

These elements working together create a dynamo effect which in turn generates electricity. The result is a device that emits electrical signals - signals that can be sent to a computer. The switch, therefore, links the biological world with the silicon world of electronic signals.

The nanoactuator has been patented by the University of Portsmouth, and a patent application for the basic concepts of biosensing is pending.

Rajiv Maharaj | alfa
Further information:
http://www.port.ac.uk

More articles from Information Technology:

nachricht Drones learn to navigate autonomously by imitating cars and bicycles
23.01.2018 | Universität Zürich

nachricht Cloud technology: Dynamic certificates make cloud service providers more secure
15.01.2018 | Technische Universität München

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Optical Nanoscope Allows Imaging of Quantum Dots

Physicists have developed a technique based on optical microscopy that can be used to create images of atoms on the nanoscale. In particular, the new method allows the imaging of quantum dots in a semiconductor chip. Together with colleagues from the University of Bochum, scientists from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute reported the findings in the journal Nature Photonics.

Microscopes allow us to see structures that are otherwise invisible to the human eye. However, conventional optical microscopes cannot be used to image...

Im Focus: Artificial agent designs quantum experiments

On the way to an intelligent laboratory, physicists from Innsbruck and Vienna present an artificial agent that autonomously designs quantum experiments. In initial experiments, the system has independently (re)discovered experimental techniques that are nowadays standard in modern quantum optical laboratories. This shows how machines could play a more creative role in research in the future.

We carry smartphones in our pockets, the streets are dotted with semi-autonomous cars, but in the research laboratory experiments are still being designed by...

Im Focus: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

Rutgers scientists discover 'Legos of life'

23.01.2018 | Life Sciences

Seabed mining could destroy ecosystems

23.01.2018 | Earth Sciences

Transportable laser

23.01.2018 | Physics and Astronomy

VideoLinks Science & Research
Overview of more VideoLinks >>>