Reichman University Researchers Develop Self-Healing Living Concrete
Researchers at Reichman University are developing living concrete using engineered bacteria to absorb carbon dioxide, self-heal cracks, and prevent marine rust.
Scientists at Reichman University's Skogen Institute for Synthetic Biology are developing living concrete using genetically engineered bacteria. Traditional concrete production emits massive amounts of carbon dioxide and is prone to cracking. By utilizing engineered microorganisms that bind sand and waste materials, researchers aim to create a sustainable alternative that absorbs CO2, regulates temperature, and self-heals when damaged.
Reprogramming the Construction Site
Synthetic biology combines engineering, chemistry, physics, and computer science. Dr. Ilana Kolodkin-Gal explains that bacteria can be reprogrammed to perform specific tasks. Instead of feeding bacteria expensive synthetic sugars on a construction site, the team focuses on enhancing natural capabilities to utilize industrial waste and byproducts.
"We want to take the bacterium, treat it as a canvas, and make it do what we want," says Dr. Kolodkin-Gal.
Rust Prevention Discovery
During their research, the team accidentally discovered that their engineered bacteria also prevent rust. Marine testing conducted by graduate student Avihai-Chayim Nehemi showed that combining institute bacteria with marine microorganisms completely halted corrosion in seawater environments. This discovery opens new avenues for maintaining maritime vessels and infrastructure.
Economic and Legal Challenges
While the scientific hurdles are being cleared, the team faces patent law complexities and economic realities. Concrete is an inexpensive commodity, meaning the bio-concrete must remain competitively priced. The researchers aim to develop a viable commercial product within three years that offers superior longevity and sustainability.
