E. coli is used as a micro-factory: given the right instructions, it can be modified to rapidly produce hundreds of genes or specific proteins. It is the ideal workhorse: it is easy to grow, does not require much energy, or demand sophisticated living conditions.
Even more crucial to scientists, it can be modified easily and replicates rapidly.
One of the first successes the bacterium holds to its name is the production of human insulin.
In the 1970s, scientists inserted the genes responsible for coding human insulin into the bacteria and were able to produce vast quantities of the hormone to treat diabetes.
Ref:The study showed 10 million E. coli bacteria can be eliminated within 10 minutes on a dry copper surface. Even on a wet copper surface, a total kill can be expected within around 45 minutes, the researchers said.