A team of researchers at Montana State University has developed a living building material that combines fungal mycelium with bacterial cells. This new material could become a low-carbon alternative to concrete for certain applications in architecture and interior design.

The material uses mycelium, the root-like network of fungi, as a scaffold. Bacteria then grow within this scaffold, forming strong minerals in a process called biomineralisation. This combination allows the material to self-repair for at least a month—much longer than most other living materials, which usually last only a few days.

Why Mycelium?

Mycelium has already been used for packaging and insulation because it is biodegradable and lightweight. The researchers took this further by exploring how mycelium can shape complex internal structures. These structures can resemble patterns in bone, creating a material that is both strong and flexible. This flexibility makes it useful for designers working on non-structural panels, interior finishes, and acoustic elements.

Toward a Low-Carbon Future

Concrete is responsible for about 8% of global CO₂ emissions. While the new material is not yet strong enough to replace concrete in all uses, it shows promise for non-load-bearing elements. The low-temperature production process also reduces energy use compared to traditional building materials.

What’s Next?

The researchers are now working to extend the lifespan of the material and improve its strength. They hope to eventually scale up production and explore additional features, such as self-cleaning or pollution-absorbing abilities.

This fungus-based material is a promising step toward biodesign and circular materials in construction and interior design. Its potential for self-healing and low-impact production makes it especially relevant for architects, interior designers, and product designers who seek sustainable solutions for their projects.

Source: ScienceDaily
Photo: Tobi Kellner