Ion adsorption on titanium surfaces exposed to a physiological solution

被引：64

作者：

Frauchiger, L ^{[1
]}

Taborelli, M ^{[1
]}

Aronsson, BO ^{[1
]}

Descouts, P ^{[1
]}

机构：

[1] Univ Geneva, Appl Phys Grp, CH-1211 Geneva 4, Switzerland

来源：

APPLIED SURFACE SCIENCE | 1999年 / 143卷 / 1-4期

关键词：

titanium surface; Hanks' solution; adsorption;

D O I：

10.1016/S0169-4332(98)00932-5

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Changes in surface properties of titanium platelets exposed to a physiological solution (Hanks' solution) were studied by Auger electron spectroscopy and Attenuated Total Reflection Fourier Transform Infra Red spectroscopy for surface chemical composition analysis and by Scanning Force Microscopy for surface topography measurements. An adsorbed layer of calcium-phosphate was spontaneously formed on the titanium oxide surface and its thickness as well as the Ca/P ratio was found to increase with immersion time. After 71 days of immersion, the Ca/P ratio corresponded to that of brushite or monetite and after 6 months it was close to the value of hydroxyapatite. A higher Ca/P ratio was found for adsorption from solutions where the pH had been increased. After adsorption, the grains of the evaporated titanium substrate appeared slightly smoother because they were covered by a thin layer of calcium phosphate. A comparison between immersion in a Hanks' solution and solutions containing only phosphates or only calcium ions, showed that the presence of phosphates is necessary for the adsorption of Ca-ions. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：67 / 77

页数：11

共 20 条

[1]

Aronsson BO, 1997, J BIOMED MATER RES, V35, P49

[2] INTERPRETATION OF AUGER LVV TRANSITIONS FROM OXIDES OF 3RD-ROW ELEMENTS [J].

BERNETT, MK ;

MURDAY, JS ;

TURNER, NH .

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1977, 12 (04) :375-393

[3]

Campbell AA, 1996, J BIOMED MATER RES, V32, P111, DOI 10.1002/(SICI)1097-4636(199609)32:1<111::AID-JBM13>3.0.CO

[4]

2-P

[5]

DAVIS D, 1976, HDB AUGER ELECT SPEC

[6]

Gross KA, 1998, J BIOMED MATER RES, V39, P580, DOI 10.1002/(SICI)1097-4636(19980315)39:4<580::AID-JBM12>3.3.CO

[7]

2-Y

[8]

HA SW, 1997, BIOCERAMICS, V10, P3

[9]

HANAWA T, 1991, BONE-BIOMATERIAL INTERFACE, P49

[10]

KASEMO B, 1986, CRIT REV BIOCOMPAT, V2, P335

← 1 2 →