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

Autor: Miroslav Jelinek, Tomáš Kocourek, Karel Jurek, Michal Jelinek, Barbora Smolková, Mariia Uzhytchak, Oleg Lunov
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Nanomaterials, Vol 9, Iss 3, p 451 (2019)
Druh dokumentu: article
ISSN: 2079-4991
DOI: 10.3390/nano9030451
Popis: 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.
Databáze: Directory of Open Access Journals