Shota Atsumi, an assistant professor of chemistry, is using so-called synthetic biology to create cyanobacteria — or blue-green algae — that convert carbon dioxide into complex hydrocarbons.
Cyanobacteria are single-celled organisms that, like green plants, can use sunlight to turn carbon dioxide and water into sugars and other carbohydrates.
The US Department of Energy has set a goal of obtaining a quarter of industrial chemicals from biological processes by 2025.
Currently, 99 per cent of the raw materials used to make paint, plastics, fertilisers, pharmaceuticals and other chemical products come from petroleum or natural gas, according to Atsumi.
While some chemicals, such as biofuels, can be obtained from converted plant material, plants are relatively slow to grow and using farms to grow fuel takes arable land out of food production.
Instead, Atsumi is engineering cyanobacteria to make chemicals they do not make in nature. By analysing genes in these and other organisms, his team will assemble artificial synthetic pathways and put them into living cells.
‘We can use genes as building blocks to create these new functions,’ Atsumi said.
The work is supported by a contract from Asahi Kasei, a major Japanese chemical manufacturer.
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