Engineering Innovation Podcast and Radio Series

Nano Shield

PostedJanuary 28, 2007

Download File (mp3)

Randy Atkins:  “Bullet-resistant” Kevlar clothing wasn’t designed to stop sharp objects.  So Norman Wagner, a University of Delaware chemical engineer, is treating the fabric with a liquid containing ceramic nanoparticles.

Norman Wagner:  Under the right conditions, such as being stabbed, the liquid transitions to a solid-like material.

Randy Atkins:  He says that protective response occurs less than a millisecond after impact from, say, flying bomb debris.

Norman Wagner:  May not be able to stop a bullet, but could certainly help protect against small, sharp, fast-moving metal fragments in these blast events.

Randy Atkins:  The technology may provide the first comfortably-worn protection for soldiers’ arms and legs.  With the National Academy of Engineering, Randy Atkins, WTOP Radio.