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Researchers from a U.S. campus lab have created a sensor that detects TATP, a homemade explosive commonly used by terrorists. TATP, made from hydrogen peroxide and acetone, is easily obtainable. Belgian police recently seized 33 pounds of TATP, highlighting its dangerous potential.

The new electronic trace detection system can identify TATP at concentrations as low as 1 part per billion, functioning continuously without fatigue, unlike bomb-sniffing dogs. Real-world testing is set to begin later this year, with plans to reduce the device's size for easier deployment.