Eduardo Ruiz-Hitzky is a Research Professor working at the National Research Council of Spain (CSIC), being Leader of the Porous, Hybrid, and Biohybrid Materials Group belonging to the Materials Science Institute of Madrid. Since 1974, he developed pioneering works on organic-inorganic hybrid materials and polymer-clay nanocomposites. His current interest is focussed to functional nanostructured materials mainly related with porous and layered solids, with emphasis on sol–gel, intercalation chemistry, metal-oxides and carbon nanoparticles, nanocomposites, and the interaction of biological entities with inorganic surfaces. Author of about 200 scientific publications and 15 patents, he is Editor-in-Chief, Associated Editor or Member of the Editorial Board of several journals.