Light factories: going one better than nature

Researchers are attempting to perfect photosynthesis, a process pioneered by plants and bacteria, in an ambitious scheme to generate new foods, fabrics and even electricity, sustainably.

"Algae, cabbages and gum trees make sugars and starches by using the energy in sunlight," says CSIRO's Dr Tony Collings. "Artificial photosynthesis in a controlled environment will be able to offer an astonishing versatility."

Products possible could include proteins and sugars for feeding humans and livestock, cellulose fibres for use as textiles, isoprene, rubbers and sealants, and even fuels such as hydrogen and ethanol.

CSIRO researchers are working with the Australian National University and Adelaide University as well as overseas partners in a series of artificial photosynthesis projects.

"Future prospects for this technology include using artificial photosynthesis for directly generating electrical energy," says Dr Collings. "Photosynthesis also uses carbon dioxide in the production of carbohydrates, and large scale artificial photosynthesis can play an important role in sequestrating carbon dioxide to counter global warming."

Item provided courtesy of CSIRO