Priligy online now, save money

NOV 19

Recent Comment

"B.S.T. In the year 2525 if man is still alive. Remembering that song...."

View all Comments

Using Bacteria to only for you levitra costs Heal Cracked Concrete


University of Newcastle building scientists have developed a means of repairing damaged or deteriorated concrete using a genetically engineered strain of a common soil bacteria. Nicknamed "BacillaFilla," the bacteria have been modified so that they migrate into the deepest parts of cracks where they then begin to produce calcium carbonate. Calcium carbonate binds with concrete and best quality cialis can repair small fractures and restore broken concrete to its original strength.

This is not unlike an earlier EcoGeek story about bendable, self-healing concrete which also uses calcium carbonate to heal small cracks in concrete. But where that method called for the introduction of the propecia 1mg calcium carbonate into the concrete when it was produced. The bacterial method allows the same process to be applied to old concrete that was not made with calcium carbonate.

A number of click here generic levitra next day delivery safeguards have been incorporated into the bacteria to ensure that they work only where it is wanted. The researchers have tweaked its genetic properties such that it only begins to germinate when it comes in contact with the highly-specific pH of concrete. Once the cells germinate, they are programmed to crawl as deep as they can into cracks in the concrete, where quorum sensing lets them know when enough bacteria have accumulated. This enables the bacteria to target the weak points of damaged concrete and to work in a useful and organized fashion only where the cialis 20 mg repair is needed. In addition, the bacteria also contains a self-destruct gene, so that it will not propogate beyond where it is intended to go.

As we noted earlier, "[Concrete] is not the most beloved green building material, [but] it has properties that make it eminently useful for engineers and architects for a number of purposes. Given that there is not going to be a sudden moratorium on using the stuff, it's better to have improvements that can keep from having it go from useful building material to landfill."

image: CC 2.0 by ShaireProductions

via: Archinect and BoingBoing

Hits: 18255
Comments (8)Add Comment
Concrete producing genetically modified bacteria...
written by Nic, November 19, 2010
what could possibly go wrong?
written by Jimbo, November 21, 2010
...add in a little gamma radiation and a few industrial accidents and we'll end up with more than a few Things running around. Say it with me, "It's clobberin' time!"
written by Nessa, November 22, 2010
These GM bacteria should not be released into the wild without thorough international scientific and cialis 50 mg tablets medical trials. Of all substances, we don't want to be messing with concrete because it is the very foundation of our civilization.

I see a real risk of the bacteria evolving and becoming a threat to humans. It is only a short step from the calcium in concrete to the calcium in human bones, seriously folks, we don't want to take this step.

biological building
written by Daniela, November 26, 2010
This is a really interesting idea, though I agree with previous commenters that some skepticism is in order regarding our ability to control a technology like this. Biological paradigms for building hold a lot of promise for resource flows and continuity, but I'd want to know more about realistic extreme conditions before trusting squirts of bacteria glue. Is this the same technology they're making bio-engineered bricks out of?
written by Marc Delany, December 02, 2010
They did this last time, about 25,000 years ago now... It mutated, ate everything, could not be stopped
Old News
written by Wouter, December 08, 2010
see: EcoGeek: Bendable, Self-Healing Concrete is buy levitra online from canada Hundreds of Times Stronger, an article on we use it viagra rx this website from June 2009.
written by Wouter, December 08, 2010
oeps .. read first, sorry.
written by Don, December 24, 2010
B.S.T. In the year 2525 if man is still alive. Remembering that song.

Write comment

security code
Write the displayed characters


Are you an EcoGeek?

We've got to keep 7 billion people happy without destroying our planet. It's the biggest challenge we've ever faced....but we're taking it on. Are you with us?

The Most Popular Articles