Pramatarova L, Pecheva E, Krastev V, Riesz F
Institute of Solid State Physics, Bulgarian Academy of Sciences, Sofia, Bulgaria.
J Mater Sci Mater Med. 2007 Mar;18(3):435-40. doi: 10.1007/s10856-007-2002-4.
Material surfaces play critical role in biology and medicine since most biological reactions occur on surfaces and interfaces. There are many examples showing that the surface properties of the materials control and are directly involved in biological reactions and processes in-vitro like blood compatibility, protein absorption, cell development, etc. The rules that govern the diversity of biological surface phenomenon are fundamental physical laws. Stainless steel doped with Cr, Ni and Mo is widely used material in medicine and dentistry due to its excellent corrosion resistance and mechanical properties. The interest in this material has stimulated extensive studies on improving its bone-bonding properties. This paper describes the surface modification of Cr-Ni stainless steel (AISI 316) by a whole surface sequential implantation of Ca and P ions (the basic ions of hydroxyapatite). Three groups of stainless steel samples are prepared: (i) ion-implanted, (ii) ion-implanted and thermally treated at 600( composite function)C in air for 1 h and (iii) initials. The surface chemistry and topography before and after the surface modification are characterized by X-ray photoelectron spectroscopy, Auger electron spectroscopy, magic mirror method, atomic force microscopy and contact angle measurements.
材料表面在生物学和医学中起着关键作用，因为大多数生物反应发生在表面和界面上。有许多例子表明，材料的表面性质控制并直接参与体外的生物反应和过程，如血液相容性、蛋白质吸附、细胞发育等。支配生物表面现象多样性的规则是基本物理定律。由于具有优异的耐腐蚀性和机械性能，掺杂Cr、Ni和Mo的不锈钢是医学和牙科领域广泛使用的材料。对这种材料的兴趣激发了人们对改善其骨结合性能的广泛研究。本文描述了通过Ca和P离子（羟基磷灰石的基本离子）的全表面顺序注入对Cr-Ni不锈钢（AISI 316）进行表面改性。制备了三组不锈钢样品：（i）离子注入组，（ii）离子注入后在空气中600℃热处理1小时的组，以及（iii）初始组。通过X射线光电子能谱、俄歇电子能谱、魔镜法、原子力显微镜和接触角测量对表面改性前后的表面化学和形貌进行了表征。
