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Berkeley Lab scientists have helped to develop a tiny chip that has big potential for quickly determining whether someone has been exposed to dangerous levels of ionizing radiation. The first-of-its-kind chip has an array of nanosensors that measure the concentrations of proteins that change after radiation exposure. Although still under development, the technology could lead to a hand-held device that “lights up” if a person needs medical attention in the aftermath of an incident involving radiation. Initial tests on mice found that the technology only requires a drop of blood, measures radiation dose in minutes, and yields results up to seven days after exposure.
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