Christine LORS, Professor of Institut Mines Télécom in charge of research dealing with the interactions between microorganisms and materials in Civil & Environmental Engineering Department of IMT Lille Douai (Douai, France). Françoise FEUGEAS, Professor at INSA Strasbourg teaches material silences. She co-heads the Civil and Energy Engineering team at the ICube laboratory in Strasbourg (France). Bernard TRIBOLLET, emeritus Director of research at the Interfaces and Electrochemical Systems Laboratory (CNRS-UPMC) (Paris France).