The logic for using AQ derivatives as DNA photonucleases has three main reasons:1) The planar aromatic skeleton of AQ could promote binding to DNA by intercalation between adjacent base pairs.

• 蒽醌衍生物可以作为DNA的光裂解剂主要有三方面的原因： 1)蒽醌衍生物的平面的芳环性骨架能够嵌入到DNA相匹配的碱基中从而提高和DNA的键合力。