Glue made from genetically modified bacteria can knit cracks in concrete
By Niall Firth | DailyMail.co.uk
A bacteria that can knit together cracks in concrete structures by producing a special ‘glue’ has been developed by British scientists.
The genetically-modified microbe has been programmed to swim down fine cracks in the concrete. Once at the bottom it produces a mixture of calcium carbonate and a bacterial glue which combine to ‘knit’ the building back together.
The ‘BacillaFilla’ eventually hardens to become the same strength as the surrounding concrete and is designed to make buildings last longer.
Filler: The bacteria could be injected into a crack in a concrete wall and would self-germinate until it had filled the gap.
Joint project instructor Dr Jennifer Hallinan said: ‘Around five per cent of all man-made carbon dioxide emissions are from the production of concrete, making it a significant contributor to global warming.
‘Finding a way of prolonging the lifespan of existing structures means we could reduce this environmental impact and work towards a more sustainable solution.
’This could be particularly useful in earthquake zones where hundreds of buildings have to be flattened because there is currently no easy way of repairing the cracks and making them structurally sound.”
The bacterium used by researchers is called Bacillus subtilis and is commonly found in soil.
The BacillaFilla spores only start germinating when they make contact with concrete – triggered by the very specific pH of the material – and they have an in-built self-destruct gene which means they would be unable to survive in the environment.
Once the cells have germinated, they swarm down the fine cracks in the concrete and are able to sense when they reach the bottom because of the clumping of the bacteria.
This clumping activates concrete repair, with the cells differentiating into three types: cells which produce calcium carbonate crystals, cells which act as reinforcing fibres and cells which produce a glue which acts as a binding agent and fills the gap.
The microbial glue was designed by students at Newcastle University as part of a major international science competition in the US.
Article from: dailymail.co.uk
Bacteria Can Stand-Up and "Walk"
Bacteria and Phytoplankton Affect the Weather
Alexander the Great Killed by Toxic Bacteria?
Computer-Controlled Bacteria Build a Miniature Pyramid
An Input/Output Device for the Brain - Made of Light, Algae, and Bacteria
Much of Britain was Exposed to Bacteria Sprayed in Secret Trials (The Guardian, 2002)
Too Much Technology Kills Good Bacteria
Latest News from our Front Page
Barbara Lerner Spectre On Twitter!
Kevin MacDonald writes in 2010:
In the video below, Barbara Lerner Spectre, who runs a government-funded Jewish study group in Sweden, makes the following remarkable statement—remarkable because she does not attribute anti-Jewish attitudes to irrational prejudices or even Muslims who hate Israel. Instead she says that it’s because of the “leading role” played by Jews in the movement toward multiculturalism:
“I think ...
Sweden investigating underwater wreckage as possible Russian submarine
What may be the wreckage of a Russian submarine is seen off the coast of Sweden
The Swedish military is studying a video taken by shipwreck hunters who say it shows a wrecked submarine, just off the country’s eastern coast, which appears to be Russian.
Ocean X Team, the company behind the discovery, said on its website: “It is unclear how old ...
The Dissidenti™™ and their frazzled hall monitors buzzsaw with talk about “cuckservatives.” It’s the shiv du jour, you see. As shivs go, it is in this ‘umble narrator’s opinion one of the more lethal of the semantic shanks employed by dark realists.
Lovers and haters of the Cuck Shiv gird for battle (well, the haters girdle for battle). The wielders love ...
The Inevitable - The Daily Beast Begins The Personal Attacks To Tear Down Trumpâ€¦.
Only the politically naive didn’t see this coming. The liberal outlet “The Daily Beast” begins to attack Donald Trump personally, through a method of hiding behind citations in old books and manipulating content/context delivery to attack their target.
The Daily Beast takes this very specific and very strategic approach because references to the statements/opinions of others allows them to avoid libel and ...
Residents of Dresden Wake up to Find Overnight, City Park Has Been Turned Into Migrant Camp For 2,000
The German city which dared to stand-up to their government’s policy of accepting Islamisation and mass migration appears to have been punished for dissent by the zero-notice imposition of a migrant camp.
Government employees stood by the entrance of a city park in Dresden, Saxony on Thursday night handing out fliers to passers-by informing them the next day the green space, ...
|More News » |