Dimitrios Papoulis (orcid.org/0000-0003-1734-4726) is a Professor of Geology Department of University of Patras, Greece. He specializes on mineralogy, clay mineralogy, and nanogeosciences. He has published more than 100 papers, 65 of then are publications in SCI journals, h=29 (Google Scholar), 25 (Scopus), and has about 2500 Total Citations (Google Scholar). Dimitrios Papoulis is, according to the classification provided by Stanford University, among the world’s Top 2% of scientists in the field of “Mining and Metallurgy”, both for career and for every year from 2020 to present. Dimitrios Papoulis is a Member of the Editorial Board of the Journal of SCI “Materials”. Dimitrios Papoulis is the representative for Greece in IMA (International Mineralogical Association), and the representative for Greece in EMU (European Mineralogical Union).