Abstract: Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals.

Abstract: Conjugates of SN-38 that provide optimal drug release rates and minimize the formation of the corresponding glucuronate are described. The conjugates release SN-38 from a polyethylene glycol through a ?-elimination mechanism.

Abstract: Conjugates of carriers and hydrogels for controlling the biological half-life of somatostatin and its analogs are disclosed.

Abstract: Conjugates of SN-38 that provide optimal drug release rates and minimize the formation of the corresponding glucuronate are described. The conjugates release SN-38 from a polyethylene glycol through a ?-elimination mechanism.

Abstract: Conjugates of carriers and hydrogels for controlling the biological half-life of somatostatin and its analogs are disclosed.

Abstract: Conjugates of SN-38 that provide optimal drug release rates and minimize the formation of the corresponding glucuronate are described. The conjugates release SN-38 from a polyethylene glycol through a ?-elimination mechanism.

Abstract: Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals.

Abstract: Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals. This invention provides hydrogels that degrade to smaller, soluble components in a non-enzymatic process upon exposure to physiological conditions and to methods to prepare them. The hydrogels are prepared from crosslinking agents that undergo elimination reactions under physiological conditions, thus cleaving the crosslinking agent from the backbone of the hydrogel. The invention also relates to the crosslinking agents themselves and intermediates in forming the hydro gels of the invention. The biodegradable hydro gels prepared according to the methods of the invention may be of use in diverse fields, including biomedical engineering, absorbent materials, and as carriers for drug delivery.

Abstract: Conjugates of carriers and hydrogels for controlling the biological half-life of somatostatin and its analogs are disclosed.

Abstract: Conjugates of SN-38 that provide optimal drug release rates and minimize the formation of the corresponding glucuronate are described. The conjugates release SN-38 from a polyethylene glycol through a ?-elimination mechanism.

Abstract: The present invention provides methods and compositions that permit controlled and prolonged drug release in vivo. The compounds are either prodrugs with tunable rates of release, or conjugates of the drug with macromolecules which exhibit tunable controlled rates of release.

Abstract: The invention provides sealants wherein biodegradable hydrogels that do not otherwise comprise protein-reactive groups for binding to membranes or tissue are provided said groups optionally through a linker. The linker may be biodegradable and may be biodegradable by an elimination reaction. The invention also provides multilayer gels for drug delivery wherein a porous gel in contact with a tissue or organ to which the drug is to be delivered is protected by a microporous layer from the surrounding bodily fluid.

Abstract: The invention relates to solid supports useful in medical applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the solid support through a linkage that releases the drug or a prodrug through controlled beta elimination.

Abstract: Hydrogels that degrade under appropriate conditions of pH and temperature by virtue of crosslinking compounds that cleave through an elimination reaction are described. The hydrogels may be used for delivery of various agents, such as pharmaceuticals. This invention provides hydrogels that degrade to smaller, soluble components in a non-enzymatic process upon exposure to physiological conditions and to methods to prepare them. The hydrogels are prepared from crosslinking agents that undergo elimination reactions under physiological conditions, thus cleaving the crosslinking agent from the backbone of the hydrogel. The invention also relates to the crosslinking agents themselves and intermediates in forming the hydro gels of the invention. The biodegradable hydro gels prepared according to the methods of the invention may be of use in diverse fields, including biomedical engineering, absorbent materials, and as carriers for drug delivery.

Abstract: The invention relates to conjugates of macromolecular carriers and drugs comprising linkers that release the drug or a prodrug through rate-controlled beta-elimination, and methods of making and using the conjugates.

Abstract: The invention relates to compositions that comprise dendrimers useful in medical and veterinary applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the dendrimer through a linkage that releases the drug or a prodrug through controlled beta elimination.

Abstract: The present invention provides methods and compositions that permit controlled and prolonged drug release in vivo. The compounds are either prodrugs with tunable rates of release, or conjugates of the drug with macromolecules which exhibit tunable controlled rates of release.

Abstract: The invention relates to solid supports useful in medical applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the solid support through a linkage that releases the drug or a prodrug through controlled beta elimination.

Abstract: The invention relates to compositions that comprise dendrimers useful in medical and veterinary applications that provide controlled release of drugs, such as peptides, nucleic acids and small molecules. The drugs are covalently coupled to the dendrimer through a linkage that releases the drug or a prodrug through controlled beta elimination.