Dr. Sajjad Haider is an Associate Professor in the Chemical Engineering Department at King Saud University, Riyadh, Saudi Arabia since May 2009. His research work focuses on the development of carbon nanotubes, metal nanoparticles, the synthesis of biopolymer and metal oxide composites, synthesis of polymer hydrogels, and electrospun nanofibers for biomedical and environmental applications. He is on the editorial board of the Makara of Technology Series and Journal of Chemical Engineering and Material Science. Dr. Haider has co-edited two books and co-authored seven book chapters.