Dr. Kavindra Kumar Kesari is currently working as Senior Researcher in the Department of Applied Physics at the Aalto University, Espoo, Finland. He obtained Doctoral, Master, and Bachelor degreés from India. He served as an Assistant Professor position at Jaipur National University, Jaipur, India. He obtained his first Postdoctoral research from University of Eastern Finland, Kuopio, Finland. Currently, he is working on cell ultrastructure study with micro & macro spectroscopic techniques. His work mainly aimed to explore the fundamentals of cell wall ultrastructure of woody & non-woody materials and the mechanism of how cellulose elementary fibrils or aggregates are formed and their applications in biomedical research. His study also explores the medicinal applications of plant derived bioactive compounds and nanoparticles for disease treatment. Kesari, actively involved working in cell and cancer biology research with focus on qualitative and quantitative measurements by applying in vitro, in vivo & biocomputational methods. He has published over 80 papers in reputed journals, 20 book chapters, 5 books and presented over 25 papers at national and international scientific meetings. His Hirsch index (h-index) as of August 2021 is 29 on Google Scholar, 24 on Scopus. He has received four times young scientist award. His research interest focuses on neurobiology, radiation and cancer biology and therapeutic research.