Dr. Hasi Rani Barai has been a professor since 2015 at the School of Mechanical and IT Engineering, Yeungnam University, Gyeongsan, Korea. She also worked as a Post-Doctoral Research Fellow in Chemistry and Nanoscience at Ewha Womans University, Seoul, Korea, and at KCAP-Korea Center for Artificial Photosynthesis, Sogang University, Seoul, Korea. She received her Ph.D. in Physical Organic Chemistry from Inha University, Korea (2013), and her M.S. (Physical Chemistry) from Dhaka University, Bangladesh (2008). She is an active and lifetime member of ACS—American Chemical Society, USA; KCS—Korean Chemical Society, Korea; BCS—Bangladesh Chemical Society, Bangladesh; Geotechnique, construction, materials & environment, Japan. Dr. Hasi Rani Barai is a Guest Editor at Polymers (SCIE-4.329 MDPI journal) and also an Editor at two internationally renowned engineering journals. She is a Senior Scientist in the American Chemical Society. Dr. Hasi Rani Barai has had a number of presentations and international scientific publications, and she has been a reviewer in some renowned journals. She provides leadership research mentoring in major fields, such as nanotechnology and nanomaterials, material pre-process, electrochemistry and nanomaterials, and supercapacitors.