Human dental enamel: A natural nanotechnology masterpiece investigated by TEM and t-EBSD
| Autor: | Anjela Koblischka-Veneva, Jörg Schmauch, Matthias Hannig, Michael Rudolf Koblischka |
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| Rok vydání: | 2018 |
| Předmět: |
0301 basic medicine
Nanostructure Materials science Enamel paint Nanotechnology 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure Atomic and Molecular Physics and Optics Apatite stomatognathic diseases 03 medical and health sciences 030104 developmental biology stomatognathic system Transmission electron microscopy visual_art visual_art.visual_art_medium General Materials Science Nanometre Crystallite Electrical and Electronic Engineering 0210 nano-technology Electron backscatter diffraction |
| Zdroj: | Nano Research. 11:3911-3921 |
| ISSN: | 1998-0000 1998-0124 |
| DOI: | 10.1007/s12274-018-1968-1 |
| Popis: | The micro- and nanostructures of human dental enamel were investigated by transmission electron microscopy (TEM) and electron backscatter diffraction (EBSD). For this purpose, TEM slices were prepared from teeth by focused ion-beam milling. These slices enabled TEM and transmission-EBSD (t-EBSD) investigations to be performed, while standard EBSD on bulk tooth samples resulted only in Kikuchi patterns. On the TEM slices, t-EBSD enabled automated mapping. The TEM images and the EBSD data clearly elucidated the arrangement of the hydroxyapatite crystals on the nanometer scale. Information regarding the crystallographic orientation of the apatite grains enabled the deduction of novel nanotechnological building principles of the enamel structure based on a chain-like arrangement of the crystallites. |
| Databáze: | OpenAIRE |
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