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Nanomaterials 2019, 9(3), 451; https://doi.org/10.3390/nano9030451

Preliminary Study of Ge-DLC Nanocomposite Biomaterials Prepared by Laser Codeposition

1
Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic
2
Faculty of Biomedical Engineering, Czech Technical University in Prague, nam. Sitna 3105, 27 201 Kladno, Czech Republic
3
Faculty of Nuclear Science and Physical Engineering, Czech Technical University in Prague, Brehova 7, 115 19 Prague 1, Czech Republic
*
Author to whom correspondence should be addressed.
Received: 4 February 2019 / Revised: 9 March 2019 / Accepted: 13 March 2019 / Published: 18 March 2019
(This article belongs to the Special Issue Synthesis and Modification of Nanostructured Thin Films)
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Abstract

This paper deals with the synthesis and study of the properties of germanium-doped diamond-like carbon (DLC) films. For deposition of doped DLC films, hybrid laser technology was used. Using two deposition lasers, it was possible to arrange the dopant concentrations by varying the laser repetition rate. Doped films of Ge concentrations from 0 at.% to 12 at.% were prepared on Si (100) and fused silica (FS) substrates at room temperature. Film properties, such as growth rate, roughness, scanning electron microscopy (SEM) morphology, wavelength dependent X-ray spectroscopy (WDS) composition, VIS-near infrared (IR) transmittance, and biological properties (cytotoxicity, effects on cellular morphology, and ability to produce reactive oxygen species (ROS)) were studied in relation to codeposition conditions and dopant concentrations. The analysis showed that Ge-DLC films exhibit cytotoxicity for higher Ge doping. View Full-Text
Keywords: germanium; DLC; doped biomaterials; pulsed laser deposition; reactive oxygen species; apoptosis; cytotoxicity germanium; DLC; doped biomaterials; pulsed laser deposition; reactive oxygen species; apoptosis; cytotoxicity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Jelinek, M.; Kocourek, T.; Jurek, K.; Jelinek, M.; Smolková, B.; Uzhytchak, M.; Lunov, O. Preliminary Study of Ge-DLC Nanocomposite Biomaterials Prepared by Laser Codeposition. Nanomaterials 2019, 9, 451.

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