Dr O. O. Ayeleru obtained his BEng degree in Chemical Engineering from the Federal University of Technology (Yola, Nigeria) and MTech and PhD degrees in Chemical Engineering from the University of Johannesburg (Johannesburg, South Africa). His interests focus on advanced materials synthesis, municipal solid waste management, soft computing applications, fruit and vegetable research, water and wastewater treatment, energy management, biomass and renewable energy, self-healing polymers, and circular economy. He has authored and co-authored more than 25 articles in high-impact journals as well as book chapters and peer-reviewed conference papers. He is a reviewer for The Future Leaders – African Independent Research Fellowships and for award applications at the National Research Foundation. Dr A. O. Idris obtained his BSc degree in Industrial Chemistry from the Ekiti State University (Ado Ekiti, Nigeria) and MSc and PhD degrees from the University of Johannesburg (Johannesburg, South Africa). He is the recipient of a Doctorate Student Award for his oral presentation at the 2017 South African Chemical Institute. He specializes in the synthesis, characterization, and application of smart nanomaterials for sensors, biosensors, photocatalysis, photoelectrochemical degradation, and water treatment. He has published over 20 research articles in high-impact journals. He is a reviewer for many Elsevier journals and an examiner at the University of Witwatersrand (Johannesburg, South Africa). He is a member of the American Chemical Society, the South African Chemical Institute, and the South Africa Nanotechnology Initiative. Sadanand Pandey joined Yeungnam University in early 2019 as a Research Professor at the School of Chemistry and Biochemistry. He received an M.Sc. degree in Biochemistry from the Sam Higginbottom University of Agriculture, Technology, and Sciences (Allahabad, India) in 2001 and a Ph.D. in Polymer Chemistry from the University of Allahabad (Allahabad, India) in 2009. After completing his Ph.D., he joined the prestigious Indian Institute of Science as a UGC-Kothari Fellow and later moved to the University of Johannesburg (Johannesburg, South Africa). He specializes in water pollution control and resource recovery, which includes bio-based technology for highly efficient wastewater treatment and water reclamation, augmented bioremediation of polluted aquatic environment, and waste organic recycling and resource recovery. He has authored more than 150 papers in peer-reviewed journals and at international conferences, as well as more than 10 book chapters. He collaborates actively with prestigious laboratories worldwide, maintains a large research network, and has been named among the top 1% of scientists by Stanford University in 2020, 2021, and 2022. P. A. Olubambi obtained his B.Eng. (Hons), M.Eng. and Ph.D. degrees in Metallurgical and Materials Engineering. He is a Professor of Materials Engineering and is presently the Director of the Centre for Nanomechanics and Tribocorrosion, as well as the Head of the School of Mining, Metallurgy, and Chemical Engineering at the University of Johannesburg (UJ – Johannesburg, South Africa). His research activities focus on three key and interrelated fields: advanced materials processing; powder metallurgy; nanomechanics and tribocorrosion. He is an engaged scholar and an NRF-rated researcher (C2). He has established a hi-tech powder metallurgy research laboratory at the Tshwane University of Technology (Pretoria, South Africa) and the laboratories for Nanomechanics and Tribocorrosion Research at UJ through funding and grants received over the course of his career. He is an editorial board member of two international journals, a reviewer of many high-impact journals, and has served as an organizing committee member at many local and international conferences.