1. Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografos, Athens GR-157 80, Greece (Corresponding author), e-mail: ddragato@chemeng.ntua.gr, http://orcid.org/0000-0003-4432-4368
2. Shipbuilding Technology Laboratory, School of Naval Architecture and Marine Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografos, Athens, GR-157 80, Greece
3. Department of Mechanical Engineering, Imperial College, 524 City and Guilds Building, South Kensington Campus, London, SW7 2AZ, UK
4. Research Unit of Advanced, Composite, Nano-Materials and Nanotechnology, School of Chemical Engineering, National Technical University of Athens, 9 Heroon Polytechniou St., Zografos, Athens GR-157 80, Greece (Corresponding author), e-mail: charitidis@chemeng.ntua.gr