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© Image 2015 TU Delft
Researchers from Delft Technical University in the Netherlands have developed concrete that can heal itself using special bacteria. Repairing cracks in concrete structures, which usually happen when tension is applied to it, is a time consuming, costly but necessary business. Jonkers and Schlangen added a harmless bacteria known as Bacillus genus to the concrete which remained dormant until rainwater entered the cracks which occur naturally inside concrete. The bacteria used the nutrients the researchers incorporated into the cement (calcium lactate – a component of milk).

Research Institute



Contact: Henk Jonkers

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About the authors

View full profile Lena Asai from London & Tokyo

I study Design (BA) at Goldsmiths, University of London. I am a member of London Biohackspace, the UK’s first community lab, and is interested in exploring the relationship between art, design, and synthetic biology. I am participating in iGEM 2015 in the
Community Labs Track representing London Biohackspace. My team is developing a library of yeast strains for beer brewers. Feel free to drop me a message!

View full profile Jérôme Lutz from Berlin & Munich, Germany

I like to share the great things I discover daily while researching and working in the field of Synthetic Biology.

When I talk to people about it, they often refer to Science Fiction. However, when I send them links to this wiki and they read through those pages, they start understanding that this is real and it's happening right now.