polycation

例句：

1. 1.Polycations are used in the treatment of various diseases.
   多价阳离子用于治疗各种疾病。
2. 2.The polycation solution has been shown to have antibacterial properties.
   这种多价阳离子溶液已被证明具有抗菌性质。
3. 3. The polycation can effectively bind to proteins and remove them from the body.
   这种多价阳离子可以有效地与蛋白质结合并从体内移除它们。