Microorganisms especially bacteria found in environment and food are responsible for causing diarrhea and other infections. To see them with naked eye is impractical, so scientists from Indian Institute of Technology (IIT) Kanpur have made it easy to track such bacteria by developing a new sensor that can detect bacterial infection in food and water in just 15-20 minutes.
The device has been made by the scientists in collaboration with Photonics Research Centre at the University of Quebec and basically detects potentially deadly Escherichia coli (E. coli) bacteria.
The device works over wide temperature range to quickly and cost-effectively identify the bacteria.
The sensor uses bacteriophages that can kill bacteria present in the surroundings.
Though, all such sensors become inefficient when temperature changes and ca give inaccurate readings but the team has added an additional optical component that cancels out temperature-induced shifts.
The temperature insensitivity makes the sensor more practical for outdoor applications, like on-site monitoring of water reservoirs.