We found a match
Your institution may have rights to this item. Sign in to continue.
- Title
The Multiphasic Teeth of Chiton Articulatus, an Abrasion‐Resistant and Self‐Sharpening Tool for Hard Algae Collection.
- Authors
Montroni, Devis; Sarmiento, Ezra; Zhao, Ruoheng; Dasika, Phani Saketh; Connolly, John Michael; Wuhrer, Richard; Zhang, Yugang; Zhernenkov, Mikhail; Wang, Taifeng; Ramirez‐Santana, Brenda Paola; Sheppard, Leigh; Avila‐Poveda, Omar Hernando; Arakaki, Atsushi; Nemoto, Michiko; Zavattieri, Pablo; Kisailus, David
- Abstract
Chiton articulatus is a species of mollusk living in the tropical Pacific intertidal rocky shores of Mexico. This species feeds on solid waste organic sources, including hard crustose algae that grow on rocky substrates, by grazing on them with its radula, a flexible chitinous membrane lined with mineralized major lateral teeth. In this study, the composition, morphology, and resulting mechanics of the mature teeth of this species, which have yet to be examined, are revealed. The results show the presence of multiphasic mature teeth, each consisting of aligned hard magnetite nanoparticles on the leading edge of the tooth underneath which are magnetite lamellae, followed by goethite, lepidocrocite, and eventually hydroxyapatite near the trailing edge. This multiregional structure demonstrates a gradation in hardness as well as different microstructural features integrated with tough interfaces. The combination of these microstructural and phase arrangements results in an abrasion‐resistant tough structure with a self‐sharpening ability. The results of this work will help contribute to developing new bioinspired designs while also helping to understand the evolution and feeding habits of these intriguing invertebrates.
- Subjects
ORGANIC wastes; SOLID waste; MAGNETITE; BIOMINERALIZATION; TEETH; GOETHITE
- Publication
Advanced Functional Materials, 2024, Vol 34, Issue 33, p1
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.202401658