Carbon Nanotubes: From Synthesis to Genotoxicity

Abstract

Massive industrial production of carbon nanotubes (CNTs) is increasing year after year, and it is urgent to address their safety-related issues. Due to their morphological similarities with asbestos fibers, which are classical carcinogenic materials, these CNTs have been considered as hazardous manufactured products by regulatory agencies. In this context, genotoxic effects of CNTs and the mechanisms proposed in current literature are reviewed and discussed in this chapter. Relevant aspects of preparation and physicochemical characterization of CNTs in toxicological context as well as the recent perspectives involving cytotoxicity assessment are also highlighted. Finally, this chapter aims to contribute to point out to a proactive discussion towards a responsible and sustainable development of nanotechnology lined up with environmental, health, and safety (EH&S) requirements.