Dr. Anandkumar Mariappan is currently working as a senior researcher at the High Entropy Materials Research Laboratory, South Ural State University, Russia. He received his Ph.D. in materials science and metallurgical engineering from the Indian Institute of Technology, Hyderabad, India (2021). His research interests include the synthesis, characterization, and applications of high-entropy oxide ceramics for photocatalysis, electrochemical sensing, gas sensors, and thermal barrier coatings.