Scientists at KAIST have developed a spray that can instantly stop bleeding by turning blood into a gel. The powder reacts with charged particles in blood and forms a protective seal in about one second after application.
The spray is designed for deep or irregular wounds where bandages and traditional dressings may fail. By simply spraying the injury, responders can act faster than with conventional methods, which often require pressure and precise placement.
Researchers believe the technology could play a critical role in emergency medicine and battlefield care. By reducing rapid blood loss, the spray may help save lives in accidents, disasters, and combat situations.
Source: KAIST research team announcements; South Korean scientific reports
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