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  • Sniffing out shoe bombs: A new and simple sensor for explosive chemicals

    The handheld reader analyzes the color changes in the sensor array to quickly monitor the environment for explosive chemicals.

    The handheld reader analyzes the color changes in the sensor array to quickly monitor the environment for explosive chemicals.

    Photo courtesy Ken Suslick

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  • Editor's note: To contact To reach Kenneth Suslick, call 217-333-2794; e-mail: ksuslick@illinois.edu. The paper, "A Colorimetric Sensor Array for Detection of Triacetone Triperoxide Vapor" is available online.