ACRYLIC ACID GRAFTED PDMS PRELIMINARY ACTIVATED BY AR+ BEAM PLASMA AND CELL OBSERVATION
A. Kostadinova, I. Keranov, N. Zaekov
Pagini: 19-23
Publicat: 1 Jan 2007
Vizualizări: 88
Rezumat: Plasma based Ar+ beam performed in RF (13.56 MHz) low-pressure (200 mTorr) glow discharge (at 100 W, 1200 W and 2500 W) with a serial capacitance was employed for surface modification of poly(dimethylsiloxane) (PDMS) aimedat improvement of its interactions with living cells. The presence of a serial capacitance ensures arise of an ion-flowinside the plasma volume directed toward the treated sample and the vary of the discharge power ensures varied density of the ion-flowThe initial adhesion of human fibroblast cells was studied on the described above plasma based Ar+beam modified and acrylic acid (AA) grafted or not fibronectin (FN) pre-coated or bare surfaces. The cell response seems to be related with the peculiar structure and wettability of the modified PDMS surface layerafter plasma based Ar+ beam treatment followed or not by AA grafting.
Cuvinte cheie: biomaterials, surface treatment of pdms, plasma based ar+ beam, acrylic acid grafting, fibroblast cells
Citează acest articol: A. Kostadinova, I. Keranov, N. Zaekov. ACRYLIC ACID GRAFTED PDMS PRELIMINARY ACTIVATED BY AR+ BEAM PLASMA AND CELL OBSERVATION. Journal of International Scientific Publications: Materials, Methods & Technologies 1, 19-23 (2007). https://www.scientific-publications.net/en/article/1003536/
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