Preeti Gupta is an assistant professor at the Department of Chemistry, DDU Gorakhpur University, Gorakhpur, UP, India. Her specializations are in the field of inorganic chemistry, polymer science, solid-state chemistry, and luminescence materials. She has published 26 research papers in journals of international repute and a book chapter. She is currently working on projects funded by some prestigious research organizations of her country.S. S. Das has been a professor at the Department of Chemistry, DDU Gorakhpur University, Gorakhpur, UP, India for more than 30 years. His specializations are in the field of thermodynamics, polymer science, and solid-state chemistry. Prof. Das has authored 5 books on physical chemistry and polymer science, has published 80 research papers and reviews in journals of national and international repute, and has been a supervisor to 14 PhD students. He has been associated with a large number of academic bodies and is also an EC member of the Indian Thermal Analysis Society for 6 years.N. B. Singh is a professor at the Department of Chemistry and Biochemistry, School of Basic Sciences and Research, and the Research Development Cell, Sharda University, Greater Noida, India. He has also been the head of the Chemistry Department and dean of the Faculty of Science, DDU Gorakhpur University, UP, India. He was a postdoctoral fellow at the Free University of Brussels, Belgium, during 1973–1974, and received the prestigious Alexander von Humboldt fellowship (Germany) in 1977. Prof. Singh has been teaching postgraduate and undergraduate classes in chemistry and materials science for the last 50 years and has worked at various universities in Germany. His main areas of research are materials science, solid-state chemistry, cement chemistry, thermodynamics, and water purification. He is currently the president of the Indian Association of Solid-State Chemistry and Allied Areas, Jammu, India, and is one of the 2% scientists listed by Stanford University, USA.
