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Scientists have grown nanotubes for protection of bones and delivery of drugs

Scientists at the Tomsk Polytechnic University and their foreign colleagues have grown nanotubes that will improve the survival rate of bone implants. It will be possible to place drugs into nanotubes that will enter the patient’s body, helping it to fight certain diseases.
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Nanotubes are hollow cylinders of titanium dioxide with a length of up to 10 micrometers. They are covered with a layer of calcium phosphate, which masks them, making them more like natural human tissues. Thanks to the coating, titanium implants are less likely to be rejected by the body.

The coating made of nanotubes performs one more function — it reduces the load on the implant, which arises from the fact that bone tissue and titanium elasticities are different.

The discovery will allow for future use of nanotubes for drug delivery to the patient’s body — nanotubes are hollow inside so they can be loaded with medicinal substances, and the drugs can thus be delivered to the targeted part of the body together with the implant.

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