1. Study of optical properties and biocompatibility of DLC films characterized by sp bonds.
- Author
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Písařík, Petr, Jelínek, Miroslav, Smetana, Karel, Dvořánková, Barbora, Kocourek, Tomáš, Zemek, Josef, and Chvostová, Dagmar
- Subjects
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BIOCOMPATIBILITY , *CARBON compounds , *PULSED laser deposition , *OPTICAL properties of metals , *ELLIPSOMETRY , *KERATINOCYTES , *FIBROBLASTS , *X-ray photoelectron spectroscopy - Abstract
Optical and biomedical properties of diamond-like carbon (DLC) films of various sp, sp bonds were studied. The layers were prepared by pulsed laser deposition (PLD) for laser energy densities from 4 J cm to 14 J cm. The percentage of sp and sp bonds was calculated using X-ray photoelectron spectroscopy (XPS). In dependence on density the films contained up to 70 % of sp bonds. Optical properties were measured using spectroscopic ellipsometry in region from 250 nm to 1000 nm ( n=2.6-2.7; k=0.07-0.25) and by transmission measurement (from 200 nm to 1100 nm). The adhesion and growth of human fibroblasts and keratinocytes of DLC films were tested in vitro. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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