University of california, Berkeley's artificial photosynthesis turns
carbon dioxide into future fuel
Whenever a scientific discovery claims to have solved
one of the world's most critical issues, it's hard not to
get a little bit excited. Today, our hopes are riding high
on the news that Berkeley's University of California might have just
worked out how to solve the problem of climate
change. Working in collaboration with the Department
of Energy and the University of California, researchers
have developed a system that captures carbon dioxide
and turns it into chemicals that can be used to make
plastics, drugs and, even better, biofuel.
Put simply, the system is an artificial form of
photosynthesis using a series of semiconducting
nanowires and genetically engineered E.coli bacteria.
Whereas a plant would absorb carbon dioxide and
produce sugar and oxygen, this system creates
acetate, a building block for various organic
compounds.
In terms of its practical applications, the team can
already extract promising if not yet useful quantities of
each substance. For instance, the process kicks out a
26 percent yield of butanol (biofuel), 25 percent
amorphadiene (base component for anti-malaria drugs)
and 52 percent amounts of PHB (biodegradeable
plastic).
With more time, money, research and some luck, the
team hopes to get those figures up to a level where
the technology is commercially viable . If the system
can be then created on a large enough scale, the
carbon in the atmosphere could be captured and
converted into a sustainable green gas for your vehicle
that wouldn't require pulling more fossil fuels out of
the ground.
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