Journal
SURFACE & COATINGS TECHNOLOGY
Volume 205, Issue -, Pages S534-S536Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.surfcoat.2011.03.143
Keywords
PE-CVD; Co-polymerization; Carboxylic functionality; Water stability; Toluidine Blue-O; Cell adhesion
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Thin films were deposited from a mixture of ethylene and acrylic acid in RF (13.56 MHz, parallel plate) glow discharges in different experimental conditions to obtain substrate-adherent coatings stable in water, surface-functionalized with tunable density of carboxyl groups. The surface composition of the coatings as well as their stability in water was investigated by X-ray Photoelectron Spectroscopy measurements and Toluidine Blue-O derivatization of the carboxylic acid functionalities. Coatings stable in water media were obtained, with tunable surface density of -COOH groups, of possible interest in biomedical applications. Such coatings were used in cell culture experiments with Saos-2 osteoblast cell lines. (C) 2011 Elsevier B.V. All rights reserved.
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