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Inorganic Chemistry

Making cement and concrete nature’s way

Microbes figured out how to make these materials long ago. Industry is starting to catch on

by Mitch Jacoby
June 11, 2023 | A version of this story appeared in Volume 101, Issue 19
A photobioreactor, which looks like a large vat of blue liquid with pink light shining, at Prometheus Materials.

Credit: Prometheus Materials | Stimulated by light, microbes in this bioreactor multiply and react carbon dioxide with calcium ions, forming calcite, a cement-like material.

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