Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus
| dc.contributor.author | Wilmers, Jana | |
| dc.contributor.author | Waldron, Miranda | |
| dc.contributor.author | Bargmann, Swantje | |
| dc.date.accessioned | 2021-10-15T07:01:42Z | |
| dc.date.available | 2021-10-15T07:01:42Z | |
| dc.date.issued | 2021-04-09 | |
| dc.date.updated | 2021-04-23T13:41:33Z | |
| dc.description.abstract | Shark tooth enameloid is a hard tissue made up of nanoscale fluorapatite crystallites arranged in a unique hierarchical pattern. This microstructural design results in a macroscopic material that is stiff, strong, and tough, despite consisting almost completely of brittle mineral. In this contribution, we characterize and compare the enameloid microstructure of two modern lamniform sharks, <i>Isurus oxyrinchus</i> (shortfin mako shark) and <i>Carcharias taurus</i> (spotted ragged-tooth shark), based on scanning electron microscopy images. The hierarchical microstructure of shark enameloid is discussed in comparison with amniote enamel. Striking similarities in the microstructures of the two hard tissues are found. Identical structural motifs have developed on different levels of the hierarchy in response to similar biomechanical requirements in enameloid and enamel. Analyzing these structural patterns allows the identification of general microstructural design principles and their biomechanical function, thus paving the way for the design of bioinspired composite materials with superior properties such as high strength combined with high fracture resistance. | en_US |
| dc.identifier | 10.3390/nano11040969 | |
| dc.identifier.apacitation | Wilmers, J., Waldron, M., & Bargmann, S. (2021). Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus. <i>Nanomaterials</i>, 11(4), 969. http://hdl.handle.net/11427/35253 | en_ZA |
| dc.identifier.chicagocitation | Wilmers, Jana, Miranda Waldron, and Swantje Bargmann "Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus." <i>Nanomaterials</i> 11, 4. (2021): 969. http://hdl.handle.net/11427/35253 | en_ZA |
| dc.identifier.citation | Wilmers, J., Waldron, M. & Bargmann, S. 2021. Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus. <i>Nanomaterials.</i> 11(4):969. http://hdl.handle.net/11427/35253 | en_ZA |
| dc.identifier.ris | TY - Journal Article AU - Wilmers, Jana AU - Waldron, Miranda AU - Bargmann, Swantje AB - Shark tooth enameloid is a hard tissue made up of nanoscale fluorapatite crystallites arranged in a unique hierarchical pattern. This microstructural design results in a macroscopic material that is stiff, strong, and tough, despite consisting almost completely of brittle mineral. In this contribution, we characterize and compare the enameloid microstructure of two modern lamniform sharks, <i>Isurus oxyrinchus</i> (shortfin mako shark) and <i>Carcharias taurus</i> (spotted ragged-tooth shark), based on scanning electron microscopy images. The hierarchical microstructure of shark enameloid is discussed in comparison with amniote enamel. Striking similarities in the microstructures of the two hard tissues are found. Identical structural motifs have developed on different levels of the hierarchy in response to similar biomechanical requirements in enameloid and enamel. Analyzing these structural patterns allows the identification of general microstructural design principles and their biomechanical function, thus paving the way for the design of bioinspired composite materials with superior properties such as high strength combined with high fracture resistance. DA - 2021-04-09 DB - OpenUCT DP - University of Cape Town IS - 4 J1 - Nanomaterials LK - https://open.uct.ac.za PY - 2021 T1 - Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus TI - Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus UR - http://hdl.handle.net/11427/35253 ER - | en_ZA |
| dc.identifier.uri | http://hdl.handle.net/11427/35253 | |
| dc.identifier.vancouvercitation | Wilmers J, Waldron M, Bargmann S. Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus. Nanomaterials. 2021;11(4):969. http://hdl.handle.net/11427/35253. | en_ZA |
| dc.language.iso | en | en_US |
| dc.publisher.faculty | Faculty of Engineering and the Built Environment | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | en_US |
| dc.source | Nanomaterials | en_US |
| dc.source.journalissue | 4 | en_US |
| dc.source.journalvolume | 11 | en_US |
| dc.source.pagination | 969 | en_US |
| dc.source.uri | https://www.mdpi.com/journal/nanomaterials | |
| dc.title | Hierarchical Microstructure of Tooth Enameloid in Two Lamniform Shark Species, Carcharias taurus and Isurus oxyrinchus | en_US |
| dc.type | Journal Article | en_US |