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ISRO, IISc develop bacterial-infused ‘space bricks’ to build structures on Mars

In order to send humans to planets like Mars they need spaces to live. Therefore, the Indian Institute of Science (IISc) in Bangalore in collaboration with the Indian Space Research Organization (ISRO) has developed a prototype for martin and lunar clay bricks used in the construction of habitats for human habitation on the Red Planet. The team demonstrates how “space bricks” to build a home on Mars can be made using indigenous martini clay, bacteria and urea, a waste chemical that mammals excrete through urine. These “space bricks” are used to build structures on Mars, which facilitates human colonization.

To make the “space bricks”, the researchers first created a slurry of martini clay that mimicked guar gum – a product of processed guar beans – containing urea, nickel chloride and the bacterium Sporosarcina pasteurization. It is mixed and the slurry can go away. Into molds of any shape. Bacteria convert urea into calcium carbonate crystals within a few days. These crystals, along with biopolymers produced by bacteria, act as cement that holds soil cells together.

According to a Advertising, Researchers have previously tried to build “space bricks” with imitation lunar clay, but they can only produce cylindrical bricks. However, with their new martini method, they can make bricks of any shape by hardening the slurry mixture into a mold.

“Bacteria penetrate deep into the pores, use their own proteins to bind cells to each other, reduce porosity and lead to stronger bricks,” said Alok Kumar, an associate professor and author in the Department of Mechanical Engineering at IISc. Paper.

Speaking about the addition of nickel chloride, Kumar said, “Initially, our bacteria did not grow at all. Adding nickel chloride is a key step in hosting the soil for bacteria.

Findings Published In the April 14th edition of PLOS One in the magazine.

The research team hopes to examine how Mars’ atmosphere and low gravity affect the strength of “space bricks”. The Martian atmosphere is 100 times thinner than Earth and contains more than 95 percent carbon dioxide, which has a major impact on bacterial growth. The researchers designed a device in the lab called MARS (Martian Atmosphere Simulator) that has a room to simulate the weather conditions seen on Mars.

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