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Description
| - Surface and antibacterial properties of diamond-like carbon (DLC) and ultrananocrystalline diamond (UNCD) films were studied and discussed. The DLC layers were prepared by pulsed laser deposition (PLD) with laser energy densities from 4 J*cm-2 to 14 J*cm-2 and PLD combined with ion bombardment. The percentage of sp2 and sp3 bonds was calculated using X-ray photoelectron spectroscopy (XPS). Depending on the laser energy density and the bombardment energy the amorphous films contained from 40 % to more than 80 % of sp3 bonds. Microwave plasma chemical vapor deposition (MWCVD) from 17% CH4 in N2 mixture was used for the preparation of UNCD films. They are composed of diamond nanocrystallites (3-5 nm in diameter) embedded in an amorphous carbon matrix, containing up to 30% sp2 bonds. The ratio of the crystalline and amorphous fractions is closed to 1. The morphology and topology of the films were studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM), which revealed closed, uniform, homogeneous and smooth coatings. The wettability and the surface free energy were determined from the contact angle measurements, and were related to the surface topology and content of sp3 bonds. The antibacterial properties investigated with Gram-positive and Gram-negative bacteria were discussed with respect to the surface properties of the DLC and UNCD films.
- Surface and antibacterial properties of diamond-like carbon (DLC) and ultrananocrystalline diamond (UNCD) films were studied and discussed. The DLC layers were prepared by pulsed laser deposition (PLD) with laser energy densities from 4 J*cm-2 to 14 J*cm-2 and PLD combined with ion bombardment. The percentage of sp2 and sp3 bonds was calculated using X-ray photoelectron spectroscopy (XPS). Depending on the laser energy density and the bombardment energy the amorphous films contained from 40 % to more than 80 % of sp3 bonds. Microwave plasma chemical vapor deposition (MWCVD) from 17% CH4 in N2 mixture was used for the preparation of UNCD films. They are composed of diamond nanocrystallites (3-5 nm in diameter) embedded in an amorphous carbon matrix, containing up to 30% sp2 bonds. The ratio of the crystalline and amorphous fractions is closed to 1. The morphology and topology of the films were studied by scanning electron microscopy (SEM) and atomic force microscopy (AFM), which revealed closed, uniform, homogeneous and smooth coatings. The wettability and the surface free energy were determined from the contact angle measurements, and were related to the surface topology and content of sp3 bonds. The antibacterial properties investigated with Gram-positive and Gram-negative bacteria were discussed with respect to the surface properties of the DLC and UNCD films. (en)
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Title
| - COMPARISON OF SURFACE PROPERTIES OF DLC AND ULTRANANOCRYSTALLINE DIAMOND FILMS WITH RESPECT TO THEIR BIOAPPLICATIONS
- COMPARISON OF SURFACE PROPERTIES OF DLC AND ULTRANANOCRYSTALLINE DIAMOND FILMS WITH RESPECT TO THEIR BIOAPPLICATIONS (en)
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skos:prefLabel
| - COMPARISON OF SURFACE PROPERTIES OF DLC AND ULTRANANOCRYSTALLINE DIAMOND FILMS WITH RESPECT TO THEIR BIOAPPLICATIONS
- COMPARISON OF SURFACE PROPERTIES OF DLC AND ULTRANANOCRYSTALLINE DIAMOND FILMS WITH RESPECT TO THEIR BIOAPPLICATIONS (en)
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skos:notation
| - RIV/68407700:21460/12:00198200!RIV13-MSM-21460___
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http://linked.open...avai/predkladatel
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/68407700:21460/12:00198200
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - diamond-like carbon; ultrananocrystalline diamond films; surface properties; antibacterial tests (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...ontrolniKodProRIV
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Jelínek, Miroslav
- Kocourek, Tomáš
- Mikšovský, Jan
- Písařík, Petr
- Vymětalová, Veronika
- Zezulová, Markéta
- Voss, A.
- Mozafari, M.
- Popov, C.
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http://localhost/t...ganizacniJednotka
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