New Powder Nanocomposite Miracle in Bone Recovery

Iranian researchers produced a powder nanocomposite with various medical applications in dentistry, orthopedics and tissue engineering.

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2014-05-10

Carbon nanotubes have high potential in biological applications such as tissue engineering and simulation of bone structure and properties due to their unique physical and mechanical properties. In the present study, a homogenous powder nanocomposite has been produced through a simple and cost-effective method.

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Hydroxyapatite (HA) and various weight percentages of multi-walled carbon nanotubes (MWCNTs) have been used in the production of the powder. The nanocomposite can be used as the substitute for the treatment and simulation of damaged bone tissues. The product can also be used in dental implants.

According to the researchers, the produced nanocomposite had better biocompatibility than the pure hydroxyapatite powder. Sol-gel method was used in the production of the product. In this research, a nanocomposite of hydroxyapatite and multi-walled carbon nanotube was firstly produced through sol-gel method. To this end, a solution of nanotube in water was prepared.

Sodium dodecyl sulfate was used as surfactant to disperse nanotube in the solvent. Multi-walled carbon nanotubes were fully covered with HA crystals.

Better dispersion of carbon nanotubes means the creation of more cores for hydroxyapatite particles and lower crystalline temperature. In this research, nanotubes were completely covered with hydroxyapatite particles. This characteristic in addition to the porous structure of the produced nanocomposite will facilitate the recovery and growth of the damaged bones.

Source: Nanotechnology Now