Adsorption on RF-sputtered CaP coatings in SBFs

E. Wal; A.W. Denier van der Gon; S.J. Oldenburg; J.G.C. Wolke; J.A. Jansen; A.M. Vredenberg

doi:10.4028/www.scientific.net/KEM.240-242.599

Adsorption on RF-sputtered CaP coatings in SBFs

E. Wal
, A.W. Denier van der Gon
, S.J. Oldenburg
, J.G.C. Wolke
, J.A. Jansen
, A.M. Vredenberg

Materials to Optoelectronic Devices

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

In this study ionic adsorption was investigated of Ca and PO4 from Simulated Body Fluids (SBFx) at the surface of a Radio Frequent sputtered calcium phosphate coating. The relation between adsorption and heterogeneous nucleation of calcium phosphate was studied in doubly concentrated SBF. Two types of coatings were used, one with a high Ca/P ratio (1.6 CaPhigh), and one with a low Ca/P ratio (1.0 CaPlow). Ion coverages in the adsorption layer of CaPhigh coatings were twice as high as for the CaPlow coatings. The Ca/P ratio in the adsorption layer for CaPhigh samples was 1.3, which is the same value as for the formed precipitate. CaPlow samples were found to be inert in SBF2, showing a much higher Ca/P ratio of more than 2. Also, possible desorption of coating constituents during the induction time preceding precipitation was studied. It was found that at most a few percent of the outermost ionic layer of the coating entered the solution.

Original language	English
Pages (from-to)	599-602
Number of pages	4
Journal	Key Engineering Materials
Volume	240-242
DOIs	https://doi.org/10.4028/www.scientific.net/KEM.240-242.599
Publication status	Published - 2003

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title = "Adsorption on RF-sputtered CaP coatings in SBFs",

abstract = "In this study ionic adsorption was investigated of Ca and PO4 from Simulated Body Fluids (SBFx) at the surface of a Radio Frequent sputtered calcium phosphate coating. The relation between adsorption and heterogeneous nucleation of calcium phosphate was studied in doubly concentrated SBF. Two types of coatings were used, one with a high Ca/P ratio (1.6 CaPhigh), and one with a low Ca/P ratio (1.0 CaPlow). Ion coverages in the adsorption layer of CaPhigh coatings were twice as high as for the CaPlow coatings. The Ca/P ratio in the adsorption layer for CaPhigh samples was 1.3, which is the same value as for the formed precipitate. CaPlow samples were found to be inert in SBF2, showing a much higher Ca/P ratio of more than 2. Also, possible desorption of coating constituents during the induction time preceding precipitation was studied. It was found that at most a few percent of the outermost ionic layer of the coating entered the solution.",

author = "E. Wal and \{Denier van der Gon\}, A.W. and S.J. Oldenburg and J.G.C. Wolke and J.A. Jansen and A.M. Vredenberg",

year = "2003",

doi = "10.4028/www.scientific.net/KEM.240-242.599",

language = "English",

volume = "240-242",

pages = "599--602",

journal = "Key Engineering Materials",

issn = "1013-9826",

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TY - JOUR

T1 - Adsorption on RF-sputtered CaP coatings in SBFs

AU - Wal, E.

AU - Denier van der Gon, A.W.

AU - Oldenburg, S.J.

AU - Wolke, J.G.C.

AU - Jansen, J.A.

AU - Vredenberg, A.M.

PY - 2003

Y1 - 2003

N2 - In this study ionic adsorption was investigated of Ca and PO4 from Simulated Body Fluids (SBFx) at the surface of a Radio Frequent sputtered calcium phosphate coating. The relation between adsorption and heterogeneous nucleation of calcium phosphate was studied in doubly concentrated SBF. Two types of coatings were used, one with a high Ca/P ratio (1.6 CaPhigh), and one with a low Ca/P ratio (1.0 CaPlow). Ion coverages in the adsorption layer of CaPhigh coatings were twice as high as for the CaPlow coatings. The Ca/P ratio in the adsorption layer for CaPhigh samples was 1.3, which is the same value as for the formed precipitate. CaPlow samples were found to be inert in SBF2, showing a much higher Ca/P ratio of more than 2. Also, possible desorption of coating constituents during the induction time preceding precipitation was studied. It was found that at most a few percent of the outermost ionic layer of the coating entered the solution.

AB - In this study ionic adsorption was investigated of Ca and PO4 from Simulated Body Fluids (SBFx) at the surface of a Radio Frequent sputtered calcium phosphate coating. The relation between adsorption and heterogeneous nucleation of calcium phosphate was studied in doubly concentrated SBF. Two types of coatings were used, one with a high Ca/P ratio (1.6 CaPhigh), and one with a low Ca/P ratio (1.0 CaPlow). Ion coverages in the adsorption layer of CaPhigh coatings were twice as high as for the CaPlow coatings. The Ca/P ratio in the adsorption layer for CaPhigh samples was 1.3, which is the same value as for the formed precipitate. CaPlow samples were found to be inert in SBF2, showing a much higher Ca/P ratio of more than 2. Also, possible desorption of coating constituents during the induction time preceding precipitation was studied. It was found that at most a few percent of the outermost ionic layer of the coating entered the solution.

U2 - 10.4028/www.scientific.net/KEM.240-242.599

DO - 10.4028/www.scientific.net/KEM.240-242.599

M3 - Article

SN - 1013-9826

VL - 240-242

SP - 599

EP - 602

JO - Key Engineering Materials

JF - Key Engineering Materials

ER -

Adsorption on RF-sputtered CaP coatings in SBFs

Abstract

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