Key Development

Researchers in China have created a smartphone test that detects pesticides and antibiotics in food within just 10 seconds. This easy-to-use method uses special glowing materials called uranium organic frameworks (UOFs) that react to harmful chemicals by changing colour and brightness. Three different UOFs are designed to target specific groups of pesticides and antibiotics. The test employs dual-step fluorescence sensing, which improves accuracy and reduces false results.

Turning Smartphones into Food Testers

The smartphone test works by attaching a small device to a regular smartphone with an app that reads the glowing signals. This setup allows instant, on-the-spot testing at farms, markets, or storage areas without the need for costly laboratory equipment. When tested on real food samples like vegetables and meat, the system reliably detected even tiny contaminant levels below food safety limits, proving its readiness for practical use.

What’s Next for This Technology

The scientists plan to expand the test’s capabilities to detect additional harmful substances, such as leftover medicines and environmental pollutants in food and water. This advancement could also aid in broader environmental monitoring and public health protection. Overall, this breakthrough makes food safety checks faster, easier, and more accessible, helping to ensure the food we consume is safe and healthy.

Source: Foodtech News