publicado em 06/12/2012 às 12h15:00
   Dê o seu voto:

Nanotube titanium assist in osseointegration of metal implants

Researchers have created a thin film which, when deposited on titanium, is bone cells grow inside

font size

Some pieces of information on this page may have been automatically translated. Makernews is not responsible for the irregularities resulting from these translations. When in doubt,      consult the original text.

Researchers at the University of Sao Paulo (USP) are developing nanotubes of titanium oxide which may be used to improve the osseointegration of implants produced with the metal.

In the experiments, the scientists were able to obtain a thin, measuring between 500 nanometers to 3 micrometers thick and concentrated nanotubes, which can be seen only in high-resolution microscope. When the film is deposited on titanium nanotubes will host bone cells that can grow inside, Alain Robin describes Professor, Department of Materials Engineering, School of Engineering of Lorena.

According Robin, the films of titania (titanium oxide nanotubes) was obtained by anodization. The anodizing process conducted under the conditions defined in this work was successfully applied in dental implants national commercial manufacturing.

The professor, who has studied various alloys of titanium addition, oversaw the study of Materials Engineering student Michele B. A. Ribeiro wherein the nanotubes were obtained.

Anodising is an electrochemical process based on electrolysis. In an electrochemical cell is placed in a solution containing inorganic or organic fluoride ions, which may be sodium, ammonia, or hydrofluoric acid. The solutions to obtain the nanotubes must contain fluorides, the researcher explains.

Inside the net, is placed the specimen together with a titanium platinum electrode. From there is mounted an electric circuit with a current source, and titanium is the positive pole and the negative platinum. Then apply an electric potential difference (DDP) for the formation of titania [titania] in the form of a film, has Robin.

The geometric characteristics of the nanotubes, such as height and internal diameter, as has been done will depend on the anodization process, such as DDP amount of fluoride, anodization time and temperature of the solution. Robin states that do not yet exist in Brazil industrial applications for nanotube growth on titania and implants still require that studies of biological tests to check the cell growth within the titania nanotubes.

<i> With the information USP </ i>

  • Share this pageShare this page
  • Share this pageCorrect
  • ShareShare
  • AlertAlert
Reduced link: 
  • You are recommending this story: Nanotube titanium assist in osseointegration of metal implants
  • Fill in the following form to send your recommendation to your friend:

  • You are suggesting a correction for this story: Nanotube titanium assist in osseointegration of metal implants

Receba notícias do iSaúde no seu e-mail de acordo com os assuntos de seu interesse.
Seu nome:
Seu email:
Desejo receber um alerta com estes assuntos:
implant    nanotube    titanium oxide    Universidade de São Paulo    USP    film    Department of Materials Engineering    School of Engineering of Lorena    anodizing   
Leave your comment
(Required fields are marked with an *)

(Your email address will never be published or shared.)

Enter the letters and numbers below and click in the button "send"

  • Twitter iSaúde
Informe Saúde printed version

Recommend the portal
Close [X]
  • You are recommending this story:
  • Fill in the following form to send your recommendation to your friend:

RSS news from the portal  iSaú
Get the newsletter of the portal  iSaú
Recommend the portal iSaú
News from  iSaú in your blog or website.
Get news on the subject of your interest.
© 2000-2011 Todos os direitos reservados.