...的109位工人,虽然其可能接触的的苯浓度远低于1ppm,但是这些工人的血液生化检验值,包括:白血球、淋巴球、颗粒球(Granulocytes)、T细胞、B细胞、单核球(Monocytes)、天然杀手细胞(NK cell)、与血小板的数量,都明显低于正常值(未暴露于含苯环境的140位工人)。
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物质在非溶剂中的溶解度对纳米颗粒的制备存在影响,较低的溶解度有利于制备小粒度、弱团聚、颗粒球化度好的粉体材料;
The solubility of substance in non-solvent effect on the preparation, the lower solubility is helpful to obtain lower size, weak aggregation, spherical particles.
贺博士的团队针对不同的形状的纳米颗粒做了实验,发现一个简单的一步到位的方法:采用聚苯乙烯微球,先经氧气处理,然后再涂上硅石,便会形成树莓形状的颗粒。
Dr He's team experimented with different shapes and found a simple one-step method using polystyrene spheres treated with oxygen and then coated with silica to build raspberry-like shapes.
制得的颗粒多孔、速溶、真球度高、表面光泽度好、致密性强、不易破碎。
The prepared granule is porous and can solve quickly, with high sphericity coeficient, good surface luster, certain intensity and is not easy to break.
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