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Artificial 'Wood Bone' may Prompt Broken Human Bones to Heal Faster
According to a report in Discovery News, the researchers chose wood because it closely resembles the physical structure of natural bone, "which is impossible to reproduce with conventional processing technology."
"Our purpose is to convert native wood structures into bioactive, inorganic compounds destined to substitute portions of bone," said Anna Tampieri, a scientist at the Instituto Di Scienza E Techologia Dei Materiali Ceramici in Italy.
To create the bone substitute, the scientists start with a block of wood - red oak, rattan and sipo work best - and heat it until all that remains is pure carbon, which is basically charcoal.
The scientists then spray calcium over the carbon, creating calcium carbide.
Additional chemical and physical steps convert the calcium carbide into carbonated hydroxyapatite, which can then be implanted and serves as the artificial bone.
The entire process takes about one week and costs about 850 dollars for a single block. One block translates to about one bone implant.
The researchers also note that they can create virtually any size or shape.
"Wood-based implants would have several advantages over traditional titanium or ceramic implants," said Tampieri.
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