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Scientists Developing "Artificial" Plants

Date:
November 28, 2000
Source:
CSIRO Australia
Summary:
Australian researchers are developing revolutionary technology that may help to combat the Greenhouse Effect and create food and an alternative source of fuel at the same time. Scientists at CSIRO's Telecommunications and Industrial Physics are developing artificial photosynthesis.

Australian researchers are developing novel technology that may help to combat the Greenhouse Effect and create food and an alternative source of fuel at the same time.

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Scientists at CSIRO's Telecommunications and Industrial Physics are developing artificial photosynthesis, which copies what plants do by taking light and carbon dioxide and converting them to energy to produce food.

The researchers hope that this technology will be used one day to clean up carbon dioxide waste and reduce the "Greenhouse Effect".

"In nature, leaves absorb carbon dioxide from the air and convert it to sugar and other carbon products," says project leader Dr Vijoleta Braach-Maksvytis.

"By imitating this process with a mix of manufactured materials instead of chlorophyll, we are hoping to develop technology that can reduce the large amounts of carbon dioxide emitted into the atmosphere from power stations and cars."

"Byproducts of the process could be a valuable alternative fuel, methane, or even food in the form of starches and sugars."

The research is still in its early days, but has started to show encouraging results according to Dr Braach-Maksvytis.

"We are getting our first results now. So far we have been able to produce energy in the lab, and also we have produced methane, but we still have a long way to go."

The artificial photosynthesis project is one example of technology that is being developed by imitating processes in nature, particularly at the nano level.

Nature's manufacturing process is called "self-assembly". Self-assembly builds from the bottom up, atom by atom, molecule by molecule, choosing the right components to drive the assembly of the final intricate and complex material, device, or system such as the eye or photosynthesis. This same principle is being used to manufacture, from the bottom up, things as diverse as "green" computer chips and environmental gas sensors.

"The manufacture of chips for the computer industry is an expensive and above all, toxic process," Dr Braach-Maksvytis says.

"The demand for ever smaller dimensions is pushing the chips into the dimensions of the nanometre, (that is, one billionth of a metre), which overlaps with the dimensions of biology. Our work in this field is to develop a nano smart structure - a self-assembly 'stamping' technique - to safely and easily produce integrated circuit components on silicon chips and semiconductors."

Australia is extremely well placed to take advantage of the opportunities offered by these new branches of technology Dr Braach- Maksvytis says.

"The successful adaptation of Nature's processes in nanotechnology is critically dependent on working at the cross-over point between many different types of science - physics, chemistry, biology, mathematics, engineering.

"Other countries are starting to get the networks and seed funding in place to start this work. This is where Australia has the advantage. We already have them in place, with an organisation such as CSIRO, together with government, other research institutions, and industry links across diverse markets.


Story Source:

The above story is based on materials provided by CSIRO Australia. Note: Materials may be edited for content and length.


Cite This Page:

CSIRO Australia. "Scientists Developing "Artificial" Plants." ScienceDaily. ScienceDaily, 28 November 2000. <www.sciencedaily.com/releases/2000/11/001127224712.htm>.
CSIRO Australia. (2000, November 28). Scientists Developing "Artificial" Plants. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2000/11/001127224712.htm
CSIRO Australia. "Scientists Developing "Artificial" Plants." ScienceDaily. www.sciencedaily.com/releases/2000/11/001127224712.htm (accessed December 21, 2014).

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