Iit-k Makes Low-cost Kit For Testing Water | Kanpur News

Kanpur: Researchers from the Indian Institute of Technology (IIT) Kanpur have developed an enzyme-substrate medium-based E.coli. water testing kit that is highly sensitive and can detect the presence or absence of a single E.coli. in drinking water.
A team led by Professor Indra Sekhar Sen, from the Department of Earth Science, has developed this testing kit. This E.coli water testing kit is low cost and field trials were successfully conducted and validated in the state of Odisha. The kit is developed with support and guidance from Jal Jeevan Mission and has won the National Jal Jeevan Mission’s Innovation Challenge for Developing Portable Devices to Test Drinking Water Quality.
The kit is very easy to use, and false-positive results are rare as it is specific to E.coli. bacteria. It has lower cost and higher accuracy, as well as technological advantages over similar currently available kits in the market.The test is conducted using pre-prepared vials filled with chemicals and a chemical-infused gel for 24 hours before reading. The methodology uses a growth medium specific for E.coli. and detection of a marker enzyme produced by the E.coli. bacteria. A visual color change from the enzyme-substrate interaction and a simple method there of determines the presence or absence of bacteriological contamination in drinking water. The test kit is compatible with a digital platform to record, interpret and report results to all users and their stakeholders using a single platform – the EarthFace Flow Android app. The app integrates the requirements of Jal Jeevan Mission for data-sharing with the NIC platforms. The data from kits provide tamper-proof results reporting capable of delivering automated water and program-related reports to its users. The kit will soon be available across e-commerce platforms and GeM portal, and would cost Rs. 199 for a pack of two E.coli. water testing kits and a user manual. The price is expected to come down further once it scales up. The kit will bring shift in detecting presence or absence of bacteriological contamination in drinking water, particularly, in resource-limited settings, and it aligns with Make In India initiative.

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