Methods for the preparation of pharmaceutically active agents for in vivo delivery
First Claim
1. A method for the preparation of pharmaceutically active agents for in vivo delivery, said method comprising subjecting aqueous medium containing biocompatible material capable of being crosslinked by disulfide bonds and a pharmaceutically active agent to high intensity ultrasound conditions for a time sufficient to promote crosslinking of said biocompatible material by disulfide bonds;
- wherein said pharmaceutically active agent issubstantially completely contained within a polymeric shell, andwherein the largest cross-sectional dimension of said shell is no greater than about 10 microns.
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Accused Products
Abstract
In accordance with the present invention, there are provided compositions useful for the in vivo delivery of a biologic, wherein the biologic is associated with a polymeric shell formulated from a biocompatible material. The biologic can be associated with the polymeric shell itself, and/or the biologic, optionally suspended/dispersed in a biocompatible dispersing agent, can be encased by the polymeric shell. In another aspect, the biologic associated with polymeric shell is administered to a subject, optionally dispersed in a suitable biocompatible liquid.
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Citations
11 Claims
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1. A method for the preparation of pharmaceutically active agents for in vivo delivery, said method comprising subjecting aqueous medium containing biocompatible material capable of being crosslinked by disulfide bonds and a pharmaceutically active agent to high intensity ultrasound conditions for a time sufficient to promote crosslinking of said biocompatible material by disulfide bonds;
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wherein said pharmaceutically active agent issubstantially completely contained within a polymeric shell, and wherein the largest cross-sectional dimension of said shell is no greater than about 10 microns. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification