Dr. Mubarak Ahmad Khan is Chief Scientific Officer (CSO) and Director General, Atomic Energy Research Establishment, Bangladesh Atomic Energy Commission. He did his Ph.D. in Radiation and Polymer Chemistry. He is working in several promising areas of Radiation Chemistry and Processing Technology, natural fiber reinforced polymer composites, nanotechnology, material science, biomedical science, applied science etc. Also experience in fiber reinforced polymer composite materials for various applications such as parts and body of auto car, panelized constriction materials, and bodies of electric appliances. Totally biodegradable composite materials based on natural fibers and degradable (both and synthetic) thermoplastic and resin for biomedical purposes. His focus is to use radiation-processing technology for biomedical purposes, renewable energy, Dye sensitized solar cell, modification of natural fibers; stimuli-responsive materials, hydrogel, scaffold form natural polymers. He has conducted research works in many countries including America, Germany, Japan and etc. He has worked in Germany (Technical University of Berlin, Fraunhofer Institute of Applied Polymer Research) as DAAD and Alexander von Humboldt (AvH) fellow, in Japan as MIF Fellow, as visiting scientist, in Australia (University of New South Wells) as IAEA fellow. Trained in Nuclear and Radiation Chemistry through various training course organized by IAEA. He is a part time Professor of Dhaka University, and visiting professor and examiner of various universities of Bangladesh. He is author/co-author of about 600 publications including 16 book chapters and a patent. He has served as project director/co-project director of different national and international scientific project on polymer science. Reviewers of different International Journals on Polymer and Composite Science as well Radiation supervised more than 300 M.Sc. 8 M. Phil and 13 PhD. Students. He is part time/visiting Professor of different universities of home and abroad. He has invented advanced wound dressing material from cow bone, liquid bio-fertilizer from textile effluent, natural plant growth promoter from prawn shell etc. He is also the inventor of Jutin (Jute Reinforced Polymer Corrugated Sheet) the outstanding housing material from jute plastic composite and food preservative using oligo chitosan (alternative to the formalin), He is awarded several national and international awards including Bangladesh Academy of Science Gold Medal awards 2010 for his remarkable contribution to scientific community. He is also awarded and honored by various social and academic institutes in home and abroad, He is also selected as Fellow of International Union of Pure and Applied Chemistry (IUPAC). His name was published in How’s Who in World in 1998. He visited more than 22 countries for participating different seminars, workshops, symposiums, conferences as invited speaker or speaker.