About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bio-Nano Interfaces and Engineering Applications
|
| Presentation Title |
Phononic Landscape of Natural Biomaterials – Lessons for Bioinspiration |
| Author(s) |
Horacio Espinosa, Nicolas A. Alderete, Maroun Abi Ghanem |
| On-Site Speaker (Planned) |
Horacio Espinosa |
| Abstract Scope |
Natural design and synthesis strategies have long served as a source of inspiration for novel materials with enhanced properties. In the field of phononics, exploiting structural biocomposites is gaining popularity, but finding natural phononic structures that interact with ultra- and hypersonic acoustic waves remains an open quest. In this presentation, we will discuss a combination of non-contact pump-probe laser ultrasonics techniques and Brillouin spectroscopy to interrogate the hierarchical structure of biomaterials at the micro- and nano-scale and measure their phononic dispersion behavior in the MHz and GHz range. For the case of the mantis shrimp’s club, our results demonstrate that the helicoidal periodic structure functions as a dispersive, high-quality graded system, exhibiting Bloch harmonics, flat dispersion branches, ultra-slow wave modes, and wide Bragg bandgaps in the lower MHz range. These features effectively shield the shrimp from harmful high-frequency stress waves generated by cavitation bubble collapse events during impact. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Composites, Characterization |