金MPC掺杂琼脂-明胶复合泡沫的均匀性研究

Uniformity of Au MPC doped agar-gelatin complex foam

采用表面包覆水溶性硫醇单分子层的金团簇(MPC)对琼脂-明胶复合泡沫进行掺杂。研究表明,掺杂泡沫轴向密度均匀,金MPC粒径小,不聚焦,在泡沫中分散良好,掺杂对泡沫微观形貌没有明显影响。当掺杂泡沫密度低至5.8 mg/cm3、掺杂质量分数高达30%时,金MPC在复合泡沫中不发生沉降或聚集。以水作溶剂,成功制得密度小于10 mg/cm3,孔径小于100μm的金MPC掺杂琼脂-明胶泡沫靶材料。

The monolayer water soluble thiol pretected cluster is doped in the agar-gelatin complex foam target materials. The TEM photographes indicate that, after doping, the density along axial direction of the complex foam is uniform and the microstructure of the complex foam is not affected evidently by Au MPC. When the density of the doped foam is as low as 5.8 mg/ cm^3 and the mass percent of the dopant is as high as 30%, Au MPC does not assemble or sedimentate in the agar-gelatin foam. The preparation procedure of Au MPC doped agar-gelatin complex foam is studied, and the doped foams with the density less than 10 mg/cm^3 , cell sizes less than 100μm are prepared with water as the solvent.