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Bonding and bio-properties of hybrid laser/magnetron Cr-enriched DLC layers
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SYSNO ASEP 0458356 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Bonding and bio-properties of hybrid laser/magnetron Cr-enriched DLC layers Author(s) Jelínek, Miroslav (FZU-D) RID, ORCID
Zemek, Josef (FZU-D) RID, ORCID
Vandrovcová, Marta (FGU-C) RID, ORCID
Bačáková, Lucie (FGU-C) RID, ORCID
Kocourek, Tomáš (FZU-D) RID, ORCID, SAI
Remsa, Jan (FZU-D) RID, ORCID
Písařík, Petr (FZU-D) RID, ORCIDSource Title Materials Science & Engineering C-Materials for Biological Applications. - : Elsevier - ISSN 0928-4931
Roč. 58, Jan (2016), s. 1217-1224Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords DLC ; chromium ; hybrid PLD ; hexavalent chromium ; trivalent chromium ; cell adhesion ; cell proliferation Subject RIV BM - Solid Matter Physics ; Magnetism Subject RIV - cooperation Institute of Physiology - Biophysics R&D Projects GA15-05864S GA ČR - Czech Science Foundation (CSF) LM2011026 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 ; FGU-C - RVO:67985823 UT WOS 000364247500145 EID SCOPUS 84943563493 DOI 10.1016/j.msec.2015.09.006 Annotation Chromium-enriched diamond-like carbon (DLC) layers were prepared by a hybrid technology using a combination of pulsed laser deposition (PLD) and magnetron sputtering. XRD revealed no chromium peaks, indicating that the layers are mostly amorphous. Carbon (sp2 and sp3 bonds) and chromium bonds were determined by XPS from C 1s, O 1s, and Cr 2p photoelectron peaks. Depending on the deposition conditions, the concentration of Cr in DLC layers moved from zero to 10 at.% for as-received sample surfaces, and to about 31 at.% after mild sputter-cleaning by argon ion cluster beam. It should be noted that the most stable Cr3+ bonding state is in Cr2O3 and Cr(OH)3, and that there is the toxic Cr6+ state in CrO3. The surface content of hexavalent chromium in the Cr 2p3/2 spectra is rather low, but discernible.
Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2017
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