The present invention provides, in general, compositions comprising a hydrogel and an agent, for example a therapeutic agent or an imaging agent, for locoregional delivery. In certain preferred embodiments of the invention, the hydrogel compositions are detectable by Magnetic Responance and CT Scan and are used for locoregional delivery of therapeutic agents, for example chemotherapeutic agents. The invention also features polymer matrix compositions comprising nanoparticles that can be loaded after polymerization with bioactive agents, for example a diagnostic agent or therapeutic agent.
Perfluorocarbon liquids useful in eye treatment and diagnostic procedures
申请人:CHILDREN'S HOSPITAL MEDICAL CENTER
公开号:EP0089232A2
公开(公告)日:1983-09-21
Perfluorocarbon liquids are disclosed as being useful as substitutes for the vitreous or aqueous of the eye, and as transparentizing agents in the cornea or lens of the eye. Radiopaque liquid perfluorocarbons are useful as radiopaque agents in diagnostic procedures on the eye.
Gas transport agents containing a perfluorocyclocarbon and an amine oxide are disclosed. These compositions provide emulsions or solutions for use in oxygen transport, particularly in animals. They are therefore useful as artificial blood compositions. Large concentrations of perfluorocarbons may be employed even up to 50% or more by volume in preparing emulsions, microemulsions or solutions. The emulsions or solutions are stable under room temperature storage conditions
Perfluorocarbon emulsions and their preparation and use in therapy
申请人:ADAMANTECH, INC.
公开号:EP0105584A1
公开(公告)日:1984-04-18
Perfluorocarbon emulsions may be used to enhance the activity of lipophilic drugs, chemotherapy and chemical and radiation therapy of cancer. Preferred methods for preparing the emulsion and compositions comprising the emulsion are described.
Extraocular ophthalmic preparations or devices useful as therapeutic, diagnostic lubricating or protective agents are disclosed. Perfluorocarbon films or gels are employed extraocularly as contact lenses. Liquid perfluorocarbons and substituted derivatives are the active components of the ophthalmic preparations. The neat perfluorocarbon liquids are not aqueous, wherefore, isotonicity and pH need not be considered in their preparation. Liquid sterility may be maintained without the addition of preservatives. Cornea and conjunctiva surfaces are provided with greater amounts of oxygen when the perfluorcarbon liquids are employed as eye drops. Transparent contact lenses having oxygen permeable properties are provided by the extraocular perfluorocarbon films or discs. Emulsions of perfluorocarbons in water are also suitable for all of the above uses and as carriers for drugs, antibiotics, hormones and therapeutic agents.