At **rthwestern University researchers created a new Material that can be used as an ink in a 3D printer to create Highly Accurate mimics of Real bones. The investigators tested it by seeding the printed Material with*human stem cells and implanting it in animal models.
It consists of 90%*hydroxyapatite, a*mineral form of calcium apatite naturally found in our bones, and 10% biodegradable polymer either*polycaprolactone or poly(lactic-co-glycolic acid) (PLGA). Hydroxyapatite has been used in the past for medical applications, but using it exclusively results in very hard and brittle materials. By adding only a small amount of the polymer to the hydroxyapatite resulted in a much more flexible product that is still strong but doesn’t easily ***** and shatter.
The synthetic Bones are Highly porous at all scales, including na**, micro, and macro, allowing living cells to settle in and make a cozy home for themselves, linking together and building larger structures throughout the material. Moreover, because the Printing process happens at room temperature, the new ink can integrate ***** such as antibiotics right into the final product.
10-01-2016, 12:02 AM
New Material for Printing Highly Accurate Replacements for Real Bones
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