The use of graphite compound maybe helpful in designing safer hip replacement devices, medical research says.  Graphite, which comes in flakes, originates comes from nature-grade, carbon-rich metamorphic rock. The use of graphite was based on a recent study funded by the National Institutes of Health that was published in the medical journal, Science.
 
“Graphite has been used as a lubricant for over a century. It is a classic lubricant, and it appears to form naturally,” says Northwestern ...
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