Medescape

Skepticism, Medicine and Science News

Fine Polish

Scientists have developed a new method of protecting teeth from bacterial attacks. By using technology from the semiconductor industry, Igor Sokolov  and hh from the Clarkson University Center for Advanced Materials Processing used  silica nanoparticles to polish teeth down to nanoscale roughness. When polished this finely, the bacteria had difficulties sticking to the dental enamel, and could thus be removed fairly easily. Polishing teeth is in itself not new, but no one has thought to use nanoparticles to do it before Sokolov and Gaikwad.  The study was published in the Journal of Dental Research

To the left, the unpolished surface of a tooth. To the right, the surface of a tooth after nanoparticle polishing. 

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December 22, 2008 Posted by | Medicine | , , , , , , , , , , , , , , , , , , , | Leave a comment

Nanoparticles help fight cancer

A recently published study shows that nanoparticles can be effective in drug delivery and imaging of tumors.

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September 30, 2008 Posted by | Medicine | , , , , | 1 Comment