INSPECH – Inspiration from echinoderm skeletal structures and use of marine resources for marine applications

Against a backdrop of erosion of marine biodiversity, over-exploitation of resources, fragmentation of habitats, various forms of pollution (chemical, plastic, etc.) and climate change, we need to change our behaviour in order to limit our ecological impact on the marine environment. These various challenges can be tackled, in particular through the eco-design of new products incorporating a bio-inspired approach while promoting a circular economy.  The aim of the thesis project is to propose new artificial reef/habitat concepts for coastal protection (wave impact) and the restoration of marine ecosystems. The first will be devoted to the biology and skeletogenesis of echinoderms in order to identify relevant architectures capable of removing the current barriers to artificial reefs in terms of energy dissipation potential and adaptability to their environment (morphing-change of form).  The second will focus on the multi-scale characterisation of materials and the architecture of marine resources, currently little used, using 4D printing. For example, the mussel byssus will be used in the form of filaments for additive manufacturing to make composite materials whose architecture and functions will be inspired by the skeletal elements of echinoderms.