Cancer / Oncology, Mesothelioma News Concerns Over The Toxic Properties Of Carbon Nanotubes Resolved By Asbestos / Mesothelioma News From Medical News Today January 17, 2013 January 17, 2013 Mesothelioma News Safety fears about carbon nanotubes, due to their structural similarity to asbestos, have been alleviated following research showing that reducing their length removes their toxic properties. A New Approach To Reduce Risk In Construction Industry Asbestos Awareness Week: Asbestos is a known human carcinogen and there is no safe level of asbestos exposure.