The Army Is Testing Body Armor Made From Genetically Engineered Spider Silk
Getty Yuri Cortez
By Avery Thompson
Jul 12, 2016
Kevlar has been the Army's go-to body armor for decades, but a new technology might be challenging that paradigm. Kraig Biocraft, a bioengineering company based in Michigan, has genetically altered silkworms to produce spider silk. Today, they announced an Army contract to develop this silk, called Dragon Silk, for use in body armor.
Spider silk is one of the strongest natural fibers, but it's difficult to produce in large amounts. Spiders are territorial and cannibalistic, so it's nearly impossible to create a cost-effective spider farm. To combat this problem, Kraig Biocraft inserted the genes for making spider silk into silkworms. The result was a composite silk that was as strong as normal spider silk yet much easier to produce.
Dragon Silk has a number of applications, particularly in surgery. Many sutures are done with biodegradable silkworm silk, but the increased strength of Dragon Silk allows for much thinner threads. This is useful when performing surgery in sensitive areas, such as the eyes and brain.
http://www.popularmechanics.com/military/research/a21793/army-body-armor-spider-silk/READ MORE
