Journal
JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION
Volume 14, Issue 7, Pages 653-663Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1163/156856203322274914
Keywords
PVA; repetitive adsorption and drying; ultrathin film; alternate soaking; calcium carbonate; hydroxyapatite; cell compatibility
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Poly(vinyl alcohol) (PVA) was coated onto polyethylene (PE) films by a repetitive adsorption and drying process, and then the PVA-coated PE films were alternately immersed into aqueous solutions of Ca2+ and CO32- ions (alternate soaking cycles), to deposit calcium carbonate 3 (CaCO3) onto the films. The PVA coating was essential for the CaCO3 deposition. The amount of CaCO3 deposited increased with an increasing number of cycles. Scanning electron microscopic observations and attenuated total reflection spectra revealed the presence of both calcite and aragonite as the crystal structures of CaCO3 on the film. L929 fibroblast cells adhered and proliferated on these CaCO3-deposited PE films, as well as the hydroxyapatite-coated PE films previously prepared. It was found that the PVA coating and the subsequent deposition of calcium salts on certain films facilitated cell compatibility.
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