University of Crete
Professor, Department of Chemistry
Wednesday, February 27, 2019
The design of multifunctional surfaces based on biomimetic structures has gained the interest of the scientific community. Such biomimetic structures can be achieved by using “smart” coatings, which can respond to external stimuli, such as light, temperature, electric field, pH or solvent selectivity, onto appropriately structured substrates. Novel multifunctional surfaces have been developed, able to alter their wetting properties in response to temperature and/or pH as well as light illumination, by combining proper chemistry and surface micro/nano-structuring. For this purpose, dual scale micro/nano-roughened surfaces are prepared by irradiating Si wafers using ultrafast (femtosecond) laser under a reactive atmosphere; polymeric or inorganic coatings are subsequently introduced to provide the desired functionality. The combination of such hierarchical surfaces with a ZnO coating results in efficient photo-catalytic properties as well as reversible superhydrophobicity / superhydrophilicity in response to the light illumination. Utilization of end-functionalized polymer chains anchored onto the hierarchical surfaces can lead to surfaces that exhibit reversible and controllable wettability to temperature and/or pH from the “parahydrophobic” behavior of natural plant leaves all the way to superhydrophilic properties in response to the external stimuli. Moreover, such surfaces can be seeded with human fibroblasts in order to examine the cellular response on both the surface roughness and the surface chemistry. Finally, altering the irradiation conditions results in surfaces with oriented motion of water droplets only on one direction.
Spiros H. Anastasiadis is Professor of Polymer Science and Engineering at the Department of Chemistry of the University of Crete and the Director of the Institute of Electronic Structure & Laser of the Foundation for Research and Technology - Hellas. He received his PhD in Chemical Engineering from Princeton University in 1988 whereas he has been a Visiting Scientist at the IBM Almaden Research Center in 1988-1989.
He was awarded the John H. Dillon Medal of the American Physical Society in 1998 and was elected Fellow of the American Physical Society in 2000. He has received the Materials Research Society Graduate Student Award in 1987 and the Society of Plastics Engineers - Plastics Analysis Division Best Paper Award during ANTEC 1985. He has been an Editor of the Journal of Polymer Science: Part B: Polymer Physics 5/2006-7/2010 (Senior Editor and Editor for Europe, Middle East and Africa). He served as a Consulting Editor for AIChE J. (8/2012-12/2016) and as a Member of the Editorial Advisory Board of Macromolecules (1/2015-12/2017). He is the elected President of the European Polymer Federation (EPF, www.epfwebsite.org) for the period 2018-2019 whereas he serves as President of the Hellenic Polymer Society (12/2012-now). He has been elected a Mary Shepard B. Upson Visiting Professor at Cornell University for 2018-2019.
He was the Founder, Organizer and Alternate Scientific Coordinator of the Department of Materials Science and Technology of the University of Crete whereas he has been a Professor of Materials at the Department of Physics of the University of Crete and a Professor of Materials Science and Engineering at the Department of Chemical Engineering of the Aristotle University of Thessaloniki, where he served as the Alternate Chairman (09/2007–10/2008). He has been a Member of the Quality Assurance Committee (01/2009–now), the Vice Chair of the Technical Council (02/2011–now) and the Vice Chair of the Committee on Research Integrity and Ethics (07/2018–now) of the University of Crete. He has been the National Representative and a Member of the Executive Group of the Materials, Physics & Nanosciences Domain Committee of the European Cooperation in Science & Technology (COST) and the National Delegate in the Horizon 2020 Programme Committee Configuration on Research Infrastructures.
His research interests are in the areas of polymer surfaces/interfaces and thin films, block copolymers, polymer blends and homopolymer/copolymer blends, dynamics and diffusion in multi-constituents, organic/inorganic nanohybrid materials and responsive polymer systems. S. H. Anastasiadis has published 132 papers in refereed journals, 4 in books, 6 in refereed conference proceedings, and 80 in non-refereed conference proceedings. His work has been presented 521 times (99 invited) in international meetings. He has given 55 invited lectures at academic and industrial institutions. As of September 21, 2018, he has received (ISI, ResearcherID: D-2778-2009) 5671 total citations (5190 non-self citations, 91,52%) with 45.0 average citations per paper. His h-index is 40. He has edited 1 book and has translated 2 textbooks in Greek.