Ashok Kumar Nadda is Assistant Professor in the Department of Biotechnology and Bioinformatics, Jaypee University of Information Technology, India. He completed his Ph.D. in Biotechnology from the Department of Biotechnology, Himachal Pradesh University, India. He worked as a postdoctoral fellow in the State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, China. He also worked as a postdoctoral research associate at Konkuk University, South Korea. Dr. Nadda has a keen interest in microbial enzymes, immobilization of enzymes, nanobiotechnology, biocatalysis, wastewater management, biomass degradation, biofuel synthesis, and biotransformation. Dr. Nadda has published 58 research articles, 23 book chapters, and five books. He is also a member of the editorial board and reviewer committee of various journals of international repute. Dr. Priya Banerjee is presently serving as Assistant Professor, Environmental Studies, Centre for Distance and Online Education, Rabindra Bharati University, Kolkata. She has completed her master's in Environmental Science from the University of Calcutta, Kolkata. After clearing UGC NET in Environmental Science, she completed her Ph.D. research from the Department of Environmental Science, University of Calcutta, Kolkata. She has 31 research articles, 36 book chapters, and two books to her credit. She has also participated in various national and international seminars to date and has received awards for best platform and poster presentations including the best poster presentation award at the 100th Indian Science Congress held at Kolkata. Her current research interests include integrated wastewater treatment, synthesis and application of nanomaterials, and toxicology. She is also an active reviewer of many reputed national and international journals. Dr. Swati Sharma obtained her Ph.D. from Universiti Malaysia Pahang, Malaysia. She worked as a visiting researcher in the College of Life and Environmental Sciences at Konkuk University, South Korea. Dr. Sharma completed her M.Sc. from Dr. Yashwant Singh Parmar University of Horticulture and Forestry, Nauni Solan, Himachal Pradesh, India. She has also worked as a program co‑coordinator at the Himalayan Action Research Center Dehradun and senior research fellow at the Indian Agricultural Research Institute. Dr. Sharma’s research is in the field of bioplastics, hydrogels, keratin nanofibers and nanoparticles, biodegradable polymers and polymers with antioxidant and anticancerous activities and sponges.