Scientists have developed a new test that can detect the presence of bacteria in any liquid by changing its color. This test will make it easier to identify disease-causing pathogens, diagnose illnesses, and ensure food safety.
Engineers and biochemists from McMaster University have used their expertise to create a method that uses bio-gel to confirm bacterial contamination in any liquid. The test will cause the liquid to change color in the presence of bacteria such as E. coli or Listeria.
The gel used in the test contains harmless bacteriophages, which can identify bacteria in water, milk cartons, or urine, even in small quantities.
Bacteriophages are the most common life forms on Earth, and each type of bacteriophage has the ability to target a specific type of bacteria.
This new method requires only a few hours, compared to the two days required for traditional lab tests to give results.
