Building material that absorbs CO₂ instead of emitting it
December 5, 2025 – Researchers at Worcester Polytechnic Institute have developed a carbon-negative material that captures CO₂ during production. This so-called enzymatic structural material (ESM), is formed by using enzymes that convert carbon dioxide into solid mineral particles. These particles harden into a robust construction material under mild conditions.
While conventional concrete requires long curing times and high temperatures, ESM forms within hours. One cubic meter stores more than six kilograms of CO₂, whereas standard concrete emits several hundred kilograms.
The material is strong, suitable for structural elements and fully reusable. It offers a practical alternative to CO₂-intensive building products and may support more climate-conscious construction practices.
