Latest Issue of Science News


Self-Sutures: New material knots up on its own

Researchers have used a new biodegradable material to make surgical sutures that knot and tighten themselves as they warm to body temperature.

The new material could help surgeons working in tight spaces within the body, says Robert Langer of the Massachusetts Institute of Technology in Cambridge. Surgeons might loosely stitch a suture and then let the polymer tighten itself. Eventually, doctors may insert through a tiny incision a compressed implant made of the new material that will expand into a predetermined shape, such as a short tube, or stent, that holds open a blood vessel.

Note: To comment, Science News subscribing members must now establish a separate login relationship with Disqus. Click the Disqus icon below, enter your e-mail and click “forgot password” to reset your password. You may also log into Disqus using Facebook, Twitter or Google.

This article is available only to subscribing members. Join SSP today or Log in.