Drugs or nucleic acid segments carried by drug-lo aded nanoparticle,a novel drug delivery carrier, can be transported across the BBB and target the brain tissues.

• 载药纳米粒是一种新型药物输送载体。以纳米粒为载体,药物或核苷酸片断可跨越血脑屏障靶向脑组织。