中文摘要：

用化学共沉淀法制备了四氧化三铁（Fe3O4）纳米粒子,Stober法在其表面包裹SiO2并复合荧光标记物FITC,EDC偶联牛血清白蛋白（BSA）。采用扫描电子显微镜（SEM）,傅里叶变换红外光谱仪（FT-IR）,荧光分析仪,电子能谱（XPS）等对复合粒子进行了表征。结果表明,复合粒子保留了FITC的荧光特性、Fe3O4的磁响应性并成功接枝蛋白分子。生物功能化磁性荧光复合纳米粒子有望广泛应用于细胞标记、荧光追踪、磁性分离等领域。

英文摘要：

A kind of polymer coating with micron-scale structures was prepared using air spray painting tech-nique. A surface mapping microscope was utilized to study the surface of the polymer coating. The formation mechanism of the structured surface was given according to the X-ray spectroscopy analysis. Test results in a water tunnel show remarkable drag reduction rate on the polymer coating. The drag reduction mechanism was discussed.