Nisha Gaur currently works at the Strategic Product Development Division at Defence Research Laboratory, DRDO, Tezpur Assam. Nisha does research in Environmental Science and Microbiology. Their current project is Drinking Water Treatment using Nanotechnology. Eti Sharma is currently working as Assistant Professor, School of Biotechnology, Gautam Buddha University, Greater Noida, India. She holds a Ph.D. degree in Molecular Biology & Biotechnology from G.B. Pant University of Agriculture & Technology, Pantnagar. She established herself in the field of bioprospecting and metabolomics of plants. She has expertise in plants research, nanobiotechnology , biofabrication and her current research interest lies in environmental applications of plants. She is also working on more edited book proposals. She has authored many research papers, book chapters and popular articles in nationally and internationally reputed journals. Tuan Anh Nguyen was born in Hanoi, Vietnam. He received his BSc in Physics from Hanoi Univ. in 1992, and his Ph.D in Chemistry from Paris Diderot Univ.(France)in 2003. He was Visiting Scientist at Seoul National Univ.(South Korea, 2004) and Univ. of Wollongong (Australia, 2005). He then worked as Postdoctoral Research Associate & Research Scientist in Montana State Univ. (USA), 2006-2009. In 2012, he was appointed as Head of Microanalysis Department at Institute for Tropical Technology (Vietnam Academy of Science and Technology). He is Editor-In-Chief of “Kenkyu Journal of Nanotechnology & Nanoscience” and Founding Co-Editor-In-Chief of “Current Nanotoxicity & Prevention”. He is author of 3 Vietnamese books and Editor of 14 Elsevier books in Micro & Nano Technologies Series (with 930 contributors from 58countries). Muhammad Bilal is an associate professor (Faculty of Civil and Environmental Engineering). Niranjan Prakash Melkania is a Professor & Dean Academics at Gautam Buddha University, Greater Noida. He obtained his Ph.D. from Kumaun University, Nainital, India. From past 30 years he has been working in the areas, viz., pollution. environment impact assessment, social impact assessment, ecology and biodiversity assessment and conservation, and eco-development. He has been listed as a noteworthy Management educator, consultant by Marquis Who's Who.