Finding Explosives: Glowing Films Reveal Traces Of Explosives
Saturday, May 24, 2008 - 13:35
in Physics & Chemistry
New spray-on films will be the basis of portable devices that can quickly reveal trace amounts of nitrogen-based explosives. Contaminated fingerprints leave dark shadows on the films, which glow blue under ultraviolet light. One of the films can distinguish between different classes of explosive chemicals, a property that could provide evidence to help solve a crime, or prevent one.