Το πρόγραμμα αυτό αποσκοπεί στη ανάπτυξη βιομιμητικών δομών σε ανόργανες επιφάνειες με τη χρήση υπερβραχέων παλμών λέιζερ. Προτείνουμε μία αναλυτική μελέτη διαφόρων παραγόντων που επηρεάζουν: (α) τα χαρακτηριστικά των αναπτυχθέντων δομών στην ακτινοβοληθείσα επιφάνεια (β) τις μηχανικές και οπτικές ιδιότητες της τροποποιηθείσας επιφάνειας. Μία σημαντική παράμετρος στην οποία θα δοθεί ιδιαίτερη έμφαση είναι ο ρόλος της πόλωσης της δέσμης ακτινοβόλησης στην ανάπτυξη πολύπλοκων δομών με εντυπωσιακή λειτουργικότητα. Η μελέτη θα πραγματοποιηθεί για το SiO 2 και το Νικέλιο, δύο χαρακτηριστικά είδη υλικών, με μεγάλη σημασία σε τεχνολογικές εφαρμογές. O απώτερος σκοπός του προγράμματος είναι η κατανόηση των φυσικών διαδικασιών που χαρακτηρίζουν την αλληλεπίδραση λέιζερ με την ύλη που επιτρέψει τόσο την ελέγξιμη ανάπτυξη των βιομιμητικών δομών όσο και την επαναληψιμότητα των αποτελεσμάτων των εφαρμοσμένων τεχνικών.

LaBioniCs: Laser Bionic Surfaces

Th is project receives funding in the European Commission’s Horizon 2020 Research Programme under Grant Agreement Number 801250

Objective

LaBionicS aims at both commercializing and industrializing a surface laser processing approach for biomimetic surface texturing developed during LiNaBioFlud project. This approach provides controlled formation functional (micro-/nano- structured) surface textures that mimic skin structures found in different animals and insects (biomimetic surfaces). More specifically the project will use the advanced laser-processing strategies, developed during the LiNaBioFLuid project, based on self-organization of material surface, to mimic the specific topography of the integument of bark bugs, sharks, butterfly wings and moisture harvesting lizards. Our investigations gave strong indications that these nano-features play an important role for the functionalizing surface in engineering applications relevant to Directional Fluid transport, Antibacterial / Antifouling, Antireflectance, Drag reduction, Friction Reduction, Self Cleaning and Water repellency. Beside these main advantageous functionalities, the approach has enormous versatility for modulating the final biomimetic properties and applicability in a real industrial line.

The project will follow an open innovation approach with three main enablers for commercializing and industrializing the technology. There are three main enablers/themes that will facilitate the work of the LaBionicS project that will enable the funneling of different ideas into viable highly potential commercial applications.

Deliverables

The LaBionicS approach

In comparison with traditional approaches for improving glass surface properties, the proposed technology is following a totally new approach. Traditional approaches for anti-reflective coatings use techniques that deposit multiple thin layers of materials onto glass surfaces under vacuum. Our approach enables precise development of durable functional (micro or nanostructured) surface textures that mimic skin structures found in different insects (biomimetic surfaces). More specifically, we use an advanced laser-processing strategy, developed after many years of research, based on self-organization of material surface, to mimic the specific topography of the integument of bark bugs, wings and cicada wings. The anti-reflective property exist on insect wings due to the presence of arrays (with periodicity in the range of 150–250 nm) of nonreflective nanosized (sub-100 nm size) pillars on both the top and the bottom surface of the wing.

LaBionicS have shown that currently there are two main applications (e.g. Friction reduction and Anti-reflective coatings) that are ready for demonstration. There are clear benefits for using our technology in comparison with traditional approaches. In the other two deliverables, D3.1 and D4.1, we are analyzing further the opportunities from a more commercial perspective.