American Machinist

Coating could make for safer medical implants.(Technology trends)

MEDICAL-DEVICE MANUFACTURERS MAY SOMEDAY COAT stents, urinary catheters, and other implants with a substance that stops cells and proteins from building up and contaminating these devices.

Developed by researchers at Northwestern University in Evanston, Ill., the coating is two-sided. One side, which would bond to the surface of an implant, is a sticky glue that's based on the adhesive proteins secreted by mussels. Mussels were of particular interest because they seem to be able to attach to every type of surface, including materials such as Teflon. In fact, the university's researchers have already demonstrated that the compound attaches to gold and titanium. …

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