Detecting chemical weapons with a color-changing film

In today’s world, in which the threat of terrorism looms, there is an urgent need for fast, reliable tools to detect the release of deadly chemical warfare agents (CWAs). In the journal ACS Macro Letters, scientists are reporting new progress toward thin-film materials that could rapidly change colors in the presence of CWAs—an advance that could help save lives and hold aggressors accountable.

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Detecting chemical weapons with a color-changing film