A new, temporary tattoo-like sticker developed by South Korean researchers offers a rapid and discreet method for detecting GHB (gamma-hydroxybutyrate), a drug often used in drink spiking. The sticker, containing an iodide indicator, changes color from yellow to red upon contact with GHB, offering almost instantaneous results in various beverages. This innovation aims to provide a proactive solution for preventing drug-facilitated sexual assault by enabling individuals to quickly and subtly check their drinks for the presence of GHB. The researchers reported the sticker can detect as little as 0.01 milligrams of GHB per milliliter.

While previous methods existed, including drink strips and sensor-embedded stirrers, this sticker offers a more discreet and potentially faster detection method. However, forensic toxicologist Kabrena Rodda cautions that spot tests can sometimes produce false positives, leading to unnecessary avoidance of safe drinks. Despite this caveat, Rodda praised the Korean researchers' innovation as "praiseworthy and important." The authors expect the technology to be inexpensive to manufacture and maintain its color change for 30 days after detection.

Impact Statement: This development could significantly improve personal safety in social settings by providing a convenient and less conspicuous method for detecting GHB in drinks.