A novel surgical implant was able to kill 87% of the bacteria that cause staph infections in laboratory tests, while remaining strong and compatible with surrounding tissue like current implants. The work could someday lead to better infection control in many common surgeries, such as hip and knee replacements, that are performed daily around the world.  Bacterial colonization of the implants is one of the leading causes of their failure and bad outcomes after surgery. Using 3D-printing technology, the researchers added 10% tantalum, a corrosion-resistant metal, and 3% copper to the titanium alloy typically used in implants. When bacteria come into contact with the material's copper surface, almost all of their cell walls rupture. Meanwhile, the tantalum encourages healthy cell growth with surrounding bone and tissue leading to expedited healing for the patient.
Read more …Infection-resistant, 3D-printed metals developed for implants

A novel aqueous lubricant technology designed to help people who suffer from a dry mouth is between four and five times more effective than existing commercially available products, according to laboratory tests.  The saliva substitute is described as comparable to natural saliva in the way it hydrates the mouth and acts as a lubricant when food is chewed.  
Read more …Proof of concept of new material for long lasting relief from dry mouth conditions

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