Beyond Concrete: The Rise of Bio-Fabrication
The Institute is at the forefront of a paradigm shift in construction materials, moving away from extractive, energy-intensive substances like concrete and steel towards materials that are grown, not made. Leading this revolution is the research into mycelium, the root-like network of fungi. Mycelium acts as nature's internet and recycler, breaking down organic matter and forming vast, resilient networks. In our labs, we harness this natural process to 'grow' building components.
The Process of Cultivating Buildings
Our process begins with agricultural waste—such as rice husks, straw, or sawdust—which serves as the nutrient substrate. This waste is inoculated with mycelium spores and placed into molds shaped for specific structural or insulating purposes. Over a period of days, the mycelium digests the waste, binding it into a solid, lightweight matrix. The growth process is then halted through dehydration, resulting in a fire-resistant, water-repellent, and fully biodegradable material. The properties of the final product can be finely tuned by altering the substrate mix, the fungal strain, and the growth conditions.
Applications and Living Hybrids
The applications being pioneered at our Bio-Fabrication Lab are diverse. We have developed mycelium-based bricks with compressive strength suitable for non-load-bearing walls, acoustic panels with excellent sound-dampening qualities derived from the material's porous structure, and rigid insulation boards that outperform many petroleum-based foams. The next frontier is 'living' materials—components where the biological agent remains dormant but viable. Imagine a wall panel that, if damaged, can be 'fed' a nutrient solution to stimulate regrowth and self-repair.
Furthermore, we are exploring hybrid systems. One project embeds photosynthetic microorganisms like cyanobacteria within a flexible gel matrix to create facade panels that generate oxygen and biofuel from sunlight and CO2. Another investigates bacterial calcium carbonate precipitation to create self-healing, crack-sealing concrete. The implications are profound: a future where buildings are not static objects but dynamic, responsive, and ultimately compostable parts of a circular economy. This research not only addresses the carbon footprint of construction but fundamentally reimagines buildings as temporal, living entities within their ecological context.