Dr. Shakeel Ahmed is an Assistant Professor of Chemistry at the Government Degree College Mendhar and Higher Education Department, Jammu and Kashmir, India. He earned his Ph.D. from Jamia Millia Islamia, New Delhi, and completed postdoctoral research at IIT Delhi. His research focuses on green nanomaterials and biopolymers for biomedical, packaging, and water treatment applications. Dr. Ahmed has published extensively, authored over 20 books on nanomaterials and green materials, and received awards including the Young Scientist Award and recognition among the top 2% of polymer chemists worldwide. Prof. Chaudhery Mustansar Hussain, PhD, is an adjunct professor and director of laboratories in the Department of Chemistry & Environmental Sciences at the New Jersey Institute of Technology (NJIT), Newark, New Jersey, United States. His research focuses on sustainability, the applications of nanotechnology and advanced materials, environmental management, analytical chemistry and other various industries. Dr. Hussain is the author of numerous papers in peer-reviewed journals as well as a prolific author and editor of around 200 books, including scientific monographs and handbooks in his research areas. He has published with ELSEVIER, American Chemical Society, Royal Society of Chemistry, John Wiley & Sons, CRC Press, and Springer.Satyaranjan Bairagi is a Postdoctoral Fellow at the University of Glasgow, United Kingdom. His research interests include development of nanotechnology-based piezoelectric and triboelectric materials for nanogenerators, as well as textile-based flexible advanced materials for renewable energy harvesting.