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Int. J. Mol. Sci. 2018, 19(3), 657; doi:10.3390/ijms19030657

Electrophoretic Deposition of Hydroxyapatite Film Containing Re-Doped MoS2 Nanoparticles

Department of Materials and Interfaces, Weizmann Institute, Rehovot 76100, Israel
Department of Chemical Research Support, Weizmann Institute, Rehovot 76100, Israel
Department of Science, Holon Institute of Technology, P.O. Box 305, 52 Golomb St., Holon 58102, Israel
Author to whom correspondence should be addressed.
Received: 6 November 2017 / Revised: 11 January 2018 / Accepted: 12 January 2018 / Published: 26 February 2018
(This article belongs to the Special Issue Novel Biomaterials for Tissue Engineering 2018)
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Films combining hydroxyapatite (HA) with minute amounts (ca. 1 weight %) of (rhenium doped) fullerene-like MoS2 (IF) nanoparticles were deposited onto porous titanium substrate through electrophoretic process (EPD). The films were analyzed by scanning electron microscopy (SEM), X-ray diffraction and Raman spectroscopy. The SEM analysis showed relatively uniform coatings of the HA + IF on the titanium substrate. Chemical composition analysis using energy dispersive X-ray spectroscopy (EDS) of the coatings revealed the presence of calcium phosphate minerals like hydroxyapatite, as a majority phase. Tribological tests were undertaken showing that the IF nanoparticles endow the HA film very low friction and wear characteristics. Such films could be of interest for various medical technologies. Means for improving the adhesion of the film to the underlying substrate and its fracture toughness, without compromising its biocompatibility are discussed at the end. View Full-Text
Keywords: hydroxyapatite; electrophoretic deposition; nanoparticles; inorganic fullerene-like; tribology hydroxyapatite; electrophoretic deposition; nanoparticles; inorganic fullerene-like; tribology

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Shalom, H.; Feldman, Y.; Rosentsveig, R.; Pinkas, I.; Kaplan-Ashiri, I.; Moshkovich, A.; Perfilyev, V.; Rapoport, L.; Tenne, R. Electrophoretic Deposition of Hydroxyapatite Film Containing Re-Doped MoS2 Nanoparticles. Int. J. Mol. Sci. 2018, 19, 657.

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