双相磷酸钙陶瓷表面吸附血清蛋白的洗脱特性研究  

Study on the Elution of the Adsorbed Serum Proteins on Biphasic Calcium Phosphate Ceramics

作　　者：王婧[1] 陈颖[1] 朱向东[1] 樊渝江[1] 张兴栋[1] 

机构地区：[1]四川大学国家生物医学材料工程技术研究中心,成都610064

出　　处：《无机材料学报》2013年第10期1143-1147,共5页Journal of Inorganic Materials

基　　金：国家自然科学基金(81190131);973计划(2011CB606201)~~

摘　　要：通过两种不同多孔结构的双相磷酸钙(biphasic calcium phosphate,BCP)陶瓷的制备,以人血清为蛋白溶液模型,选择三种不同的洗脱液对材料表面吸附的血清蛋白进行洗脱,考察不同洗脱液及材料多孔结构对于BCP陶瓷表面吸附血清蛋白洗脱效果的影响。结果显示,相对于2 mol/L氯化钠(NaCl)和2%十二烷基磺酸钠溶液,400 mmol/L磷酸钠(Na3PO4)溶液对于BCP陶瓷表面吸附的血清蛋白洗脱效果更佳。此外,材料多孔结构在血清蛋白的吸附和洗脱中起重要作用,微孔结构能促进BCP陶瓷表面的血清蛋白吸附并减缓吸附蛋白的释放速率,而三维贯通的大孔结构则有利于材料表面吸附血清蛋白的洗脱和释放。Two types of porous BCP ceramics were fabricated, using human serum as the model of protein solution The effect of the different eluants and porous structure on the elution of the adsorbed serum proteins on BCP ceramics were investigated. The results showed that 400 mmol/L Na3PO4 solution had higher elution efficiency for the adsorbed serum proteins on BCP ceramics than 2 mol/L NaCl or 2% sodium dodecycl sufonate （SDS） solution. Moreover, the porous structure of BCP ceramics had a strong impact on the elution of the adsorbed serum proteins. The microporous structure could promote the adsorption of serum proteins on BCP ceramics and slowed down their release rate, but the 3D interconnected macropores were favorable for the elution and release of serum proteins from the BCP surface

关 键 词：BCP陶瓷 多孔结构 洗脱液 蛋白吸附 洗脱 

分 类 号：R318[医药卫生—生物医学工程]