High Resolution STEM Images of the Human Tooth Enamel Crystals

Autor: José Reyes-Gasga, Etienne F. Brès

Publikováno v: Applied Sciences, Vol 11, Iss 16, p 7477 (2021)

High-resolution scanning transmission electron microscopy (STEM) images of human tooth enamel crystals, mainly in the high-angle annular dark-field (STEM-HAADF) mode, are presented in this work along the [1000], [10-11]. and [1-210] directions. These

Externí odkaz: https://doaj.org/article/7cd36c64941441f5b870082c17227d55

Modification of hydroxyapatite surface properties by electron irradiation

Autor: Jean-Christophe Hornez, Phillipe Supiot, Guillaume Bai, Etienne F. Brès, Ulrich Maschke

Publikováno v: Radiat. Phys. Chem.
Radiat. Phys. Chem., 2020, 177, ⟨10.1016/j.radphyschem.2020.109192⟩
Radiation Physics and Chemistry
Radiation Physics and Chemistry, Elsevier, 2020, Radiation Physics and Chemistry, 177, pp.109192. ⟨10.1016/j.radphyschem.2020.109192⟩
Radiat. Phys. Chem., 2020, 177
Radiation Physics and Chemistry, 2020, Radiation Physics and Chemistry, 177, pp.109192. ⟨10.1016/j.radphyschem.2020.109192⟩

International audience; In the present work, the modification of wetting properties of EB irradiated HA ceramics are studied under air and N2 gas atmospheres. We show a noticeable increase of the hydrophily of electron irradiated HA ceramics in an ai

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e865a24f9ea86f22fd8d1aeac60d1eb3
https://hal.archives-ouvertes.fr/hal-03090539

Detection of the piezoelectricity effect in nanocrystals from human teeth

Autor: A. Rodríguez-Gómez, Eligio Orozco, José Reyes-Gasga, M. Galindo-Mentle, R. García-García, Nancy Vargas-Becerril, Etienne F. Brès

Publikováno v: Journal of Physics and Chemistry of Solids. 136:109140

Direct and converse piezoelectric effects have been observed in human tooth enamel and dentin. In this study, organic material was removed from dentin and enamel using a chlorinated solution to measure the sole contribution of the inorganic phase. In

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b0e4fbf958b7b844785223661ad752b3
https://doi.org/10.1016/j.jpcs.2019.109140

Holes drilling in gold and silver decahedral nanoparticles by the convergent beam electron diffraction electron beam

Autor: R. Palomino-Merino, Etienne F. Brès, R. García-García, Samuel Tehuacanero-Cuapa, José Reyes-Gasga

Publikováno v: Radiation Effects and Defects in Solids. 169:838-844

The 200 kV focused electron beam in the convergent beam electron diffraction patterns mode in a transmission electron microscope (TEM) with field emission gun is able to drill holes in gold and sil...

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fcb8b8175c7729e47e0c45102b121802
https://doi.org/10.1080/10420150.2014.958747

A molecular tectonics-crystal engineering approach for building organic-inorganic composites. Potential application to the growth control of hydroxyapatite crystals

Autor: Wojciech Jaunky, Jean-Marc Planeix, Mir Wais Hosseini, Jan T. Czernuszka, Etienne F. Brès, Thierry Duhoo

The effect of bisamidinium type dications as tectons on the crystal formation of hydroxyapatite was investigated. Evidence of the structural interactions between three tectons with different numbers and locations of H-bond donor sites and hydroxyapat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::df6eedd36caf029ebdc297e0aadeb776
https://ora.ox.ac.uk/objects/uuid:1b8e49cd-9de3-4606-8d7b-b8dcd57d041c