Archive for the ‘INDUSTRY’ Category

‘Self assembled’ CRANN silicon chips are cheaper, and more powerful


A team of researchers at TCD and UCC led by Professor Mick Morris have coaxed atoms to ‘self assemble’ into a microchip, as seen in this image (Credit: Mick Morris).

The public have an insatiable appetite for better laptops, and other electronic devices, but they don’t want to pay more, and ideally they want to pay less than what they paid for their last machine.

This means that the manufacturers of computer chips, such as Intel, and the producers of laptops such as Dell are facing a dilemma.

Up to now microchips that are better than before, could only be produced  using expensive engineering tools and methods.

This naturally creates upward pressure on the cost of making microchips, which, in turn, increases the upward pressure on the cost of laptops.

The manufacturers don’t want costs to start to climb for their products. They want the opposite, and to break into new markets as a result.

So, what to do?

Professor Mick Morris, a nanotechnology researcher based at the Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) at TCD and UCC, may have an answer.

Prof Morris, and his team have just shown that it is possible to manufacture silicon microchips using ‘self assembly’ methods. This involves the use of chemistry to prod groups of atoms to assemble themselves into the desired way.

The use of self-assembly to make microchips is far, far cheaper than using expensive engineering tools. There is no cutting, or other tool work required, and small groups of silicon atoms do all the work for themselves.

This provides a potential way to build future microchips with a lot more power, while also reducing manufacturing costs.

LISTEN: Interview with Mick Morris

This interview was broadcast on Science Spinning on 103.2 Dublin City FM on 17-05-2012

Solar Cell material breakthrough at TCD


Solar Cells like these have been typically made with silicon, but silicon is an expensive material (Credit: Terry O’Rourke)

Solar energy has huge potential, in Ireland and around the world. For example, scientists have calculated that the entire energy needs of the USA could be provided by solar cells covering two per cent of that nation’s landmass.

Two per cent sounds an awful lot to cover, in a country the size of the US, but this figure corresponds to the area taken up by the country’s motorway and highway network, and the area covered by all of the nation’s rooftops.

It might be a difficult proposition, therefore, but with the will and investment it could be done, in the US or elsewhere.

The thing that is holding such an ambitious project back right now is the fact that the primary material used to make solar cells these days is silicon. Silicon, derived from sand, is expensive, so another economically viable material needs to be found.

The good news is Professor Igor Shvets and his team at TCD and CRANN have developed a cheaper and better option to silicon solar cells. It’s chromium dioxide – with the addition of some nitrogen and magnesium atoms – and it is proving a very promising material indeed.

Researchers believe it could pave the way to huge deployment of solar cells, and also lead to improved flat screen TVs, and other electronic devices.

LISTEN: Interview with Professor Igor Shvets

Broadcast on Science Spinning on 103.2 Dublin City FM on 22.03.2012

Irish scientists develop MRSA-killing technology


Researchers at DIT, including Brendan Duffy (left) and Suresh Pillai, pictured here, have developed anti-MRSA technology. 

The bacteria known as MRSA, or Methicillin-resistant Staphylococcus aureus, kills as many as 250 people in Ireland each year. It also kills tens of thousands more around the world, including in the region of 18,000 people each year in the USA.

MRSA has developed resistance to antibiotics which means there is no treatment for those affected by the bacterium, which most people get while residing in hospital.

It’s great news, therefore, that a group of researchers based in Ireland have developed a technology that kills MRSA.

The reseachers at the Crest Centre at Dublin Institute of Technology have developed floor tiles that can be used in hospitals to kill the bug. The tiles are coated in a special material, which when activated by light, kills MRSA.

The technology was presented recently at the European Innovation Conference.

Listen: Interview with John Colreavy

Broadcast on 103.2 Dublin City FM on 15.12.2011

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