US researchers develop portable biosensor for GM detection

Scientists at Purdue University have created a portable biosensor capable of identifying genetically modified (GM) corn and soy. The device, based on loop-mediated isothermal amplification (LAMP), offers a field-ready alternative to existing molecular testing methods, significantly reducing both the time and cost of analysis.

The biosensor detects genetic modifications using a small leaf sample of about 0.5 cm in diameter. Unlike traditional PCR-based methods, which require expensive equipment and highly purified DNA, the improved version of the biosensor works with crude extracts. After homogenization and dilution with distilled water (1:7), the samples can be successfully tested, enabling efficient on-site GM monitoring.

Tags: corn, USA, GM