Provided is a nanohybrid, including an aggregate assembled from a plurality of polymeric molecules, and a plurality of boron-doped graphene quantum dots inside the aggregate. The polymeric molecule is preferably a pH-responsive dendrimer； the polymeric molecule and the boron-doped graphene quantum dot may be separately associated with different drugs； and nanohybrid may further include a targeting molecule, such as a rabies virus glycoprotein. Also provided is a method of controlling disassembly of a nanohybrid, including applying a high frequency magnetic field to said nanohybrid to induce disassembly thereof. Also provided is application of said nanohybrid for manufacture of drug carrier for penetrating a tumor.本發明提供一種奈米複合物，其包含組裝成一聚集體之複數個聚合物分子及位在該聚集體內部的複數個硼參雜石墨烯量子點。該聚合物分子較佳為一酸鹼反應性樹枝狀高分子；該聚合物分子與硼參雜石墨烯量子點可各自與不同藥物結合；且該奈米複合物可進一步包含一標靶分子，如狂犬病毒糖蛋白。本發明提供亦一種控制奈米複合物崩解的方法，包含施加一高頻磁場於前述奈米複合物以誘導其崩解。本發明尚提供一種前述奈米複合物用於製備穿透腫瘤的藥物載體之用途。
