| 摘要 |
A composition for delivering a biologically active agent to a specific site in the living body comprises microbubble-encapsulated albumin microspheres containing perfluorocarbon. The biologically active agent is preferably at least one agent selected from the group consisting of oligonucleotides, antisense oligonucleotides, triple helix-forming oligonucleotides, oligonucleotide probes, nucleotide vectors, viral vectors, and plasmids. When the composition is used, the specific site is exposed to ultrasound so that the biologically active agent can be incorporated in the specific site.
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