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Biomaterials

Prometheus raises $8 million for algal cement

by Craig Bettenhausen
June 16, 2022 | A version of this story appeared in Volume 100, Issue 22
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Most Popular in Materials

 

A cinderblock that looks unusually smooth and clean.
Credit: Prometheus Materials
Prometheus Materials makes a cement, the binding material in concrete bricks, from algae.

Prometheus Materials has raised $8 million in series A funding for its algae-based cement. The firm says it will use the funds to start commercial production of precast cement-based items such as cinder blocks, roofing tiles, and ready-mix concrete. Prometheus says its photosynthetic biocementation process results in a coral-like material that is as good as Portland cement but has a carbon footprint that’s 90% smaller.

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