Dear Colleagues,
Our company fabricates nanodiamonds (ND) by proprietary technology https://www.researchgate.net/publication/265727790_Nanodiamonds_of_Laser_Synthesis_for_Biomedical_Applications
These ND are of 4.5 nm in average and are similar to detonation ND, but metal free and more uniform. In contrast to ND synthesized by HPHT, they are not expected to be accumulated in the body. After special surface modification they are also very bright, can be detected by several methods and are highly promising for cell imaging and early diagnostics. Please let me know whether you are interested to investigate their toxicity.
Article Nanodiamonds of Laser Synthesis for Biomedical Applications