Carbon nanotubes have shown broad potential in biomedical applications, given their unique mechanical, optical, and chemical
properties. Functionalized carbon nanotubes not only can deliver drug into specific organs but also can inherently produce heating by
near-infrared laser radiation for cancer therapy. However, the toxicological and pharmacological profile of such carbon nanotube system
will have to be determined prior to any clinical study undertaken. For providing a guide to develop safe drug carriers, this review discusses
the functionalization, toxicity and pharmacokinetics of carbon nanotubes. Lastly, the drug delivery and thermal ablation on carbon
nanotubes are proposed.