Glowing polymer detects explosives


William Dichtel and Deepti Gopalakrishnan

Detecting bombs in places such as airports could be getting easier, thanks to a new fluorescing polymer. While you might expect the material to glow in the presence of explosives, they actually cause it to stop glowing.

The polymer was developed at Cornell University by chemist William Dichtel and his graduate student, Deepti Gopalakrishnan.

Ordinarily, its random cross-linked structure lets it absorb light, transport the energy through itself, and ultimately release that energy back out as light. Should the energy meet up with even a single molecule of explosive as it moves through the polymer, however, it will be released as heat instead of light. This causes the polymer to promptly cease fluorescing.

It is now hoped that the polymer could be incorporated into low-cost hand-held sensors, which could be used with or instead of bomb-sniffing dogs.

This is definitely better than using X-Rays to peer beneath my underwear.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.