Arbind Prasad, PhD is an Assistant Professor and the Head of Mechanical Engineering Department, Katihar Engineering College (Under Department of Science, Technology and?Technical Education, Government of Bihar), Katihar, Bihar, India. He has published 20+ journal articles, 16 books, 48 book chapters, and 15 conference papers. His research spans resorbable polymers, biomaterials, and nanomaterials processing.Vimal Katiyar, PhD is a Professor in the Chemical Engineering Department at the Indian Institute of Technology, Guwahati, Assam, India. He has published more than 180 articles in reputed international journals, edited six books, and holds 29 patents. His research focuses on nanocomposites and polymerization.