Here introduce some research conditions of biotoxicity of nanoparticals through different contact ways, probe into the principle of biotoxicity.

• 纳米材料通过上述途径进入人体,可能与体内细胞起反应,引起发炎、病变等,因此目前多针对以上接触方式进行纳米颗粒材料的毒性研究。