Easing concerns about the toxicity ofdiamond nanoparticles2 January 2007

New research has brightened the prospects forusing nanodiamonds as drug carriers, implantcoatings, nanorobots and other medicalapplications that take advantage of diamondnanoparticles' attractive properties.

The research is scheduled for publication Dec. 28in ACS' weekly The Journal of Physical ChemistryB.

Liming Dai (University of Dayton), Saber M.Hussain (Wright-Patterson Air Force Base) andcolleagues, including PhD student AmandaSchrand, explain that advances in technology havemade a new generation of nanodiamondsavailable.

Although diamond in bulk form is inert andbiocompatible, nano-materials often behavedifferently than their bulk counterparts. That led toconcern that diamond nanoparticles might havetoxic effects on cells.

"We have for the first time assessed thecytotoxicity of nanodiamonds ranging in size from 2to 10 nm," the researchers state, adding thatnanodiamonds were not toxic to a variety ofdifferent cell types. "These results suggest thatnanodiamonds could be ideal for many biologicalapplications in a diverse range of cell types," theyadd.

Source: American Chemical Society

APA citation: Easing concerns about the toxicity of diamond nanoparticles (2007, January 2) retrieved 1June 2018 from https://phys.org/news/2007-01-easing-toxicity-diamond-nanoparticles.html

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