This week in adhesives and coating news, researchers have developed a coating for polymer implants so they bond more easily to bone. Researchers took implants made from PEEK—which has mechanical properties similar to bone but has a hard time bonding with it—and applied a coating of hydroxyapatite (HA), a compound derived from calcium phosphate as a way to make the implant bond more easily to the bone of the patient. The new method of coating, developed by researchers at North Carolina State University, the University of Cambridge, and the University of Texas at San Antonio, allows for more time for the bone to bond to the implant as the HA dissolves.
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