Sudheesh K. Shukla is a researcher with the Department of Chemical Sciences, University of Johannesburg, Doornfontein Campus, Johannesburg, South Africa; and Associate Professor at the School of Chemical Engineering and Physical Sciences, Lovely Professional University, Phagwara, India. His research involves real-time analysis of biochemical markers for personalized healthcare and environmental monitoring.Chaudhery Mustansar Hussain is an adjunct professor and lab director in the Department of Chemistry & Environmental Sciences at the New Jersey Institute of Technology (NJIT), United States. His research is focused on sustainability, nanotechnology & 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 several 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.