Carbon nanotubes are large molecules of pure carbon that are long and thin and are shaped like tubes of nanometer scale diameter with quasi-one-dimensional structure. In the past 20 years, carbon nanotubes have attracted a lot of attention from chemists, electronic device engineers, physicists, and material scientists, due to their fine optical, mechanical, structural, chemical and electronic properties. The demand for innovative industrial applications of carbon nanotubes is growing significantly. This book encompasses latest research topics about the synthesis technologies of carbon nanotubes and nanotube-based composites, along with their applications such as Electrical and Biomedical Applications and Carbon Nanotubes for Green Technologies. It will serve as a helpful source of information for engineers, researchers and students.