Echogenic polymer microcapsules and nanocapsules and methods...

Drug – bio-affecting and body treating compositions – In vivo diagnosis or in vivo testing – Ultrasound contrast agent

Reexamination Certificate

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C424S009520

Reexamination Certificate

active

07897141

ABSTRACT:
Methods for producing echogenic polymer microcapsules and nanocapsules for use in diagnostic imaging and delivery of bioactive compounds as well as targeted imaging and delivery to selected tissues and cells are provided. Compositions containing these echogenic polymer microcapsules and nanocapsules for use in diagnostic imaging and delivery of bioactive agents are also provided.

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Tachibana et al., “Application of Ultrasound Energy as a New Drug Delivery System”, Jpn. J. Appl. Phys. 1999 38:3014-3019.

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