News & Events
New article in Journal of Marine Science and Engineering!
MESA Principal Investigator, Dr Tim Sullivan has co-authored a recent publication entitled Antifouling and Fouling-Release Performance of Photo-Embossed Fluorogel Elastomers. The paper combines chemistry-based and topography-based techniques in a novel anti-biofouling approach.
The paper is published in the Journal of Marine Science and Engineering. The study was funded by the European Union 7th Framework Programme under the SEAFRONT project, with additional support from the Office of Naval Research, UK.
The full article can be accessed at: https://doi.org/10.3390/jmse7110419
Abstract
Oil-infused ‘slippery’ polymer surfaces and engineered surface textures have been separately shown to reduce settlement or adhesion strength of marine biofouling organisms. Here, we combine these two approaches in fluorogel surfaces infused with perfluorinated oils, via a facile photo-embossing method that allows the generation of a micro-scale surface relief structure while retaining the properties of lubricant-infused materials. Testing of these surfaces against a range of marine fouling challenges in laboratory assays demonstrated that when the volume percentage of perfluorinated oil was high, adhesion strengths of attached barnacles and biofilms were low. However, diatoms adhered strongly to test surfaces, highlighting the need to explore different combinations of polymer and oil for such surfaces. Furthermore, the tested surface structures increased settlement and adhesion in the assays, demonstrating the need to optimize any surface structure for specific applications. Nevertheless, the results show the feasibility of combining multiple approaches to create future antifouling technologies.