The perfect nanoparticle vectors should be specific-targeting, controlled release, nontoxicity? biodegradation, and so on.
理想的纳米粒载体应有特异靶向性、药物释放可控性，无毒性以及可生物降解等。
2
The developable iodic polymer and the embolic material thereof have the advantages of nontoxicity, inadhesion, easy operation, high safety and effectiveness, and the function of development.