| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Mechanics and Physiological Adaptation of Hard and Soft Biomaterials and Biological Tissues
|
| Presentation Title |
Investigations on Mechanical Properties and Multi-functionalities of 3D-printed, Denticle-like Composites Inspired by the Skin of Slow-swimming Catshark |
| Author(s) |
Ngoc Phuong Uyen Mai, Ashish Ghimire, Po-Yu Chen |
| On-Site Speaker (Planned) |
Ngoc Phuong Uyen Mai |
| Abstract Scope |
The structure of sharkskin from fast-swimming sharks, such as mako shark, has been well-studied to exploit their hydrodynamic and anti-fouling properties for various applications. However, the properties and functionalities of denticles of slow-moving benthic sharks are not well understood. Here, we characterized the microstructure of dermal denticles on the pectoral fin of catshark by scanning laser confocal microscopy, SEM and micro-CT scan. Unlike the well-known mako shark denticles, those of catshark showed flattened tricuspid-shaped crowns, long thin necks and star-shaped roots. We further fabricated a series of catshark skin-inspired composites with rigid denticle-like arrays embedded in relatively soft substrate by a multi-material 3D printing system. In conjunction with morphology and pattern designs, the mechanical properties of composites were analyzed by pull-out, compression, bending and abrasion tests and deformation mechanisms were discussed. This work provides a better understanding of the structure-property-function relationship of catshark denticles and develops flexible and protective composites. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Biomaterials, Mechanical Properties, Additive Manufacturing |