Mechanical adaptation of brachiopod shells via hydration-induced structural changes
| Autor: | Klaus Wakonig, Anna S. Schenk, Giuseppe Falini, Jim Buckman, Esther H. R. Tsai, Maggie Cusack, Melinda J. Duer, Luca Pasquini, David G. Reid, Mirko Holler, Johannes Ihli, Thomas Kress, Eugénia Delacou, Fabio Nudelman, Sabine Rosenfeldt, Tom S. Glen |
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| Přispěvatelé: | Wakonig, Klaus [0000-0002-9088-5644], Holler, Mirko [0000-0001-8141-0148], Falini, Giuseppe [0000-0002-2367-3721], Delacou, Eugénia [0000-0002-1395-3551], Kress, Thomas [0000-0001-9133-4310], Nudelman, Fabio [0000-0001-7464-4309], Apollo - University of Cambridge Repository, Ihli J., Schenk A.S., Rosenfeldt S., Wakonig K., Holler M., Falini G., Pasquini L., Delacou E., Buckman J., Glen T.S., Kress T., Tsai E.H.R., Reid D.G., Duer M.J., Cusack M., Nudelman F. |
| Rok vydání: | 2021 |
| Předmět: |
Biomineralization
147/135 Materials science 123 145 Science 147/137 Shell (structure) General Physics and Astronomy Organism Hydration Status 02 engineering and technology Imaging techniques 010402 general chemistry 01 natural sciences General Biochemistry Genetics and Molecular Biology 639/301/54 Biomaterials Animal Shell Molecular level 639/925/930/2735 Animal Shells medicine Animals Organic matrix 128 Invertebrate Discinisca tenuis Multidisciplinary Animal article General Chemistry 639/301/54/991 021001 nanoscience & nanotechnology Adaptation Physiological Invertebrates 0104 chemical sciences Microscopy Electron Nanocrystal Chemical engineering Organism Hydration Statu 140/131 Swelling medicine.symptom 0210 nano-technology |
| Zdroj: | Nature Communications, Vol 12, Iss 1, Pp 1-12 (2021) Ihli, J, Schenk, A S, Rosenfeldt, S, Wakonig, K, Holler, M, Falini, G, Pasquini, L, Delacou, E, Buckman, J, Glen, T S, Kress, T, Tsai, E H R, Reid, D G, Duer, M J, Cusack, M & Nudelman, F 2021, ' Mechanical adaptation of brachiopod shells via hydration-induced structural changes ', Nature Communications, vol. 12, no. 1 . https://doi.org/10.1038/s41467-021-25613-4 Nature Communications, 12 (1) |
| ISSN: | 2041-1723 |
| DOI: | 10.1038/s41467-021-25613-4 |
| Popis: | The function-optimized properties of biominerals arise from the hierarchical organization of primary building blocks. Alteration of properties in response to environmental stresses generally involves time-intensive processes of resorption and reprecipitation of mineral in the underlying organic scaffold. Here, we report that the load-bearing shells of the brachiopod Discinisca tenuis are an exception to this process. These shells can dynamically modulate their mechanical properties in response to a change in environment, switching from hard and stiff when dry to malleable when hydrated within minutes. Using ptychographic X-ray tomography, electron microscopy and spectroscopy, we describe their hierarchical structure and composition as a function of hydration to understand the structural motifs that generate this adaptability. Key is a complementary set of structural modifications, starting with the swelling of an organic matrix on the micron level via nanocrystal reorganization and ending in an intercalation process on the molecular level in response to hydration. Nature Communications, 12 (1) ISSN:2041-1723 |
| Databáze: | OpenAIRE |
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