Amazing applications of bacteria

In summary, bacteria can be used to produce gold, clean up nuclear waste, and build bricks. There is research being done into using bacteria to reduce CO2 emissions.
  • #1
19,407
9,949
I'm always amazed by studies involving super bacteria. I'd love to hear about all the research you have come across involving bacteria.

Here is a recent one I just found:

Superman-strength bacteria produce gold from gold chloride
http://news.msu.edu/story/superman-strength-bacteria-produces-gold/

Oldie but goodie:

Uranium eating bacteria
http://news.discovery.com/tech/how-bacteria-clean-up-nuclear-waste-110909.html [Broken]
 
Last edited:
Biology news on Phys.org
  • #2
There's too many to list. Here's an article from Lawrence-Livermore re water clean up and the use of bacteria in making fuels.

https://str.llnl.gov/Mar12/pdfs/3.12.4.pdf
 
  • #3
Then there's the research into using calcite precipitating bacteria (Sporosarcina pasteurii -formerly Bacillus pasteurii-,and others) to stabilize sand and to create building blocks, a process similar those which created many of our sandstone mountain chains.

Among the projects I am familiar with is the one to create building blocks or bricks from sand, urea, and some other nutrients, research done by Ginger Krieg Dosier in Abu Dhabi.

See: http://vergelabs.com/ and click on the photo of the sandy looking brick.

One neat set of experiments with biocemented bricks is to send them up in balloons to very high altitudes to test how they'd react if they were manufactured on the Martian surface:
http://2011.igem.org/Team:Brown-Stanford/REGObricks/Balloon

A slightly more practical line of research for now is to try to solidify sandy subsoils so that the ground underneath buildings ( nuclear reactors, especially...) doesn't liquify during an earthquake.

While these processes cut down on the amount of CO2 produced to make bricks or similar building materials, there is also an increase in off-gassing of ammonia...a much worse greenhouse gas. :-( However, I think there's a solution to that problem. Use a urea-dolomite fertilizer for the Nitrogen source: the dolomite contains magnesium, which helps prevent the ammonia production. ( Note: I don't have the equipment or full set of skills to test this hypothesis...)

At any rate, it is utterly awe-inspiring to think whole mountain chains have been built grain by grain by tiny MICPs critters. (MICP=Microbially Induced Calcite Precipitation)
 
Last edited:
  • #4
Add: some sub-species of Sporosarcina pasteurii are more effective at precipitating calcite crystals than other subspecies. Not enough research has gone into isolating the different subspecies of this common soil bacteria to find the most effective ones.

One plan is to someday import these to Mars to help build structures up there. This can be done using large robot 3D printing machines, at least at first. If the whole idea works, that is...
 
  • #5
This thread is fantastic. Using bacteria do things that we need is very cool in my opinion. Apart from all the bacteria in your body I mean. If I come across something I'll certainly add it in here.
 
  • #6
I'm of the mind that finding bacteria doing something we didn't even know we needed is a real high point in a scientist's career.
And by 'we' I mean all creatures.
Since most of the microbes around are unknown species or sub-species, there's a lot of opportunity for discoveries in this field.

I have a contact who spends her summers crawling around in obscure caves to search for some of these unknown species. Her research is oriented towards finding new medicinal compounds created by these creatures.
Crawling into a damp, dark, snake and spider-filled cave in, say, Southeast Asia, takes a lot of strength, both physical and mental...
 

1. How do bacteria help in the production of food?

Bacteria play a crucial role in the production of various types of food. They are used in fermentation processes for foods such as yogurt, cheese, and bread. Bacteria also produce enzymes that help break down complex molecules in food, making them easier to digest and more nutritious.

2. Can bacteria be used for environmental purposes?

Yes, bacteria have many environmental applications. They can be used to break down pollutants in soil and water, helping to clean up oil spills and other environmental disasters. Bacteria can also be used to improve soil quality and aid in the growth of plants.

3. What are some medical applications of bacteria?

Bacteria are used in the production of many antibiotics and vaccines. They can also be engineered to produce specific proteins and enzymes that can be used in medical treatments. Bacteria also play an important role in our digestive system, aiding in the breakdown of food and production of essential vitamins.

4. Are there any industrial uses for bacteria?

Yes, bacteria have many industrial applications. They are used in the production of enzymes, which are used in a wide range of industries such as textile, paper, and detergent production. Bacteria can also be used to create biofuels and bioplastics, making them a more sustainable alternative to traditional manufacturing processes.

5. How do bacteria contribute to the ecosystem?

Bacteria are essential for maintaining a healthy ecosystem. They play a crucial role in nutrient cycling, breaking down organic matter and releasing essential nutrients back into the environment. Bacteria also help to decompose dead organisms, which helps to keep ecosystems clean and free of waste.

Similar threads

Replies
2
Views
11K
Replies
1
Views
2K
  • High Energy, Nuclear, Particle Physics
Replies
5
Views
2K
  • Sci-Fi Writing and World Building
Replies
15
Views
3K
  • Nuclear Engineering
3
Replies
83
Views
13K
Replies
1
Views
3K
  • Sci-Fi Writing and World Building
Replies
2
Views
1K
  • Art, Music, History, and Linguistics
Replies
1
Views
998
  • General Discussion
Replies
4
Views
2K
  • Science Fiction and Fantasy Media
Replies
9
Views
3K
Back
Top