Agathopoulos S, Nikolopoulos P
Chemical Engineering Dept., University of Patras, Greece.
J Biomed Mater Res. 1995 Apr;29(4):421-9. doi: 10.1002/jbm.820290402.
Wetting experiments, by the sessile drop technique, were carried out at 37 degrees C in air to determine the surface and interfacial interactions that take place in various solid bioceramics based on Al2O3, ZrO2(YPZ), SiO2, and TiO2 in contact with water, Ringer solution, artificial synovial fluid, calf serum, human plasma, and whole blood (+ EDTA). The surface energy of the liquids was measured by the ring method. The calculated values of the energy of interaction (work of adhesion) reveal that intermolecular forces act across the solid-liquid interfaces. The contribution of the dispersion and polar interactions to the surface energy of the polar liquids and the pure or mixed oxides was determined assuming that in the system of Mn-steel-liquids only dispersion forces act at the interface. It was found that the contribution of the polar interactions to the energy of interaction at the solid-liquid interface increases with the glassy phase content of the oxide that causes reduction of the measured contact angle.
采用静滴法在37℃的空气中进行润湿实验，以确定基于Al2O3、ZrO2（钇部分稳定氧化锆）、SiO2和TiO2的各种固体生物陶瓷与水、林格溶液、人工滑液、小牛血清、人血浆和全血（+乙二胺四乙酸）接触时发生的表面和界面相互作用。通过圆环法测量液体的表面能。计算得到的相互作用能（粘附功）值表明，分子间力作用于固液界面。假设在锰钢-液体体系中，界面仅存在色散力，据此确定了色散和极性相互作用对极性液体以及纯氧化物或混合氧化物表面能的贡献。研究发现，极性相互作用对固液界面相互作用能的贡献随着导致测量接触角减小的氧化物玻璃相含量的增加而增大。
