Acetylated dendrimers were conjugated to folic acid as a targeting agent and then coupled to either methotrexate or tritium and either fluorescein or 6-carboxytetramethylrhodamine.

• 将叶酸作为靶向物与乙酰化树枝状结晶共轭，再将其与氨甲喋呤（或氚）和氢化荧光素（或6-carboxytetramethylrhodamine）配对。