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Materials, methods, and compositions for making crosslinked albumin hydrogels are included in the application. Embodiments include a biocompatible material of albumin crosslinked with an n-functional crosslinking agent wherein n is at least 3. Other embodiments include a cross-linking agent having a

Materials, methods, and compositions for making crosslinked albumin hydrogels are included in the application. Embodiments include a biocompatible material of albumin crosslinked with an n-functional crosslinking agent wherein n is at least 3. Other embodiments include a cross-linking agent having a polyalkylene oxide member. Other embodiments include a system for administering an albumin material, the system having albumin and a crosslinking agent that reacts with the albumin to form a crosslinked material made of crosslinked albumin. Another embodiment is a method of making a biocompatible material that includes a step of mixing albumin with an n-functional crosslinking agent wherein n is at least 3.

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What is claimed is: 1. A biocompatible albumin glue material, the material consisting essentially of albumin covalently crosslinked with only an n-functional crosslinking agent wherein n is at least 3. 2. The material of claim 1 wherein the crosslinking agent further comprises an activated functi

What is claimed is: 1. A biocompatible albumin glue material, the material consisting essentially of albumin covalently crosslinked with only an n-functional crosslinking agent wherein n is at least 3. 2. The material of claim 1 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 3. The material of claim 2 wherein the electrophile comprises a member chosen from the group consisting of carbodiimidazole, sulfonyl chloride, chlorocarbonates, n-hydroxysuccinimide ester, succinimidyl ester, epoxides, aryl halides, sulfasuccinimidyl esters, and maleimides. 4. The material of claim 1 wherein the crosslinking agent comprises a polyalkylene oxide. 5. The material of claim 4 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 6. The material of claim 5 wherein the electrophile comprises a member chosen from the group consisting of carbodiimidazole, sulfonyl chloride, chlorocarbonates, n-hydroxysuccinimide ester, succinimidyl ester, epoxides, aryl halides, sulfasuccinimidyl esters, and maleimides. 7. The material of claim 1 wherein the crosslinking agent further comprises a biodegradable region comprising a polyaminoacid. 8. The material of claim 7 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 9. The material of claim 8 wherein the electrophile comprises a member chosen from the group consisting of carbodiimidazole, sulfonyl chloride, chlorocarbonates, n-hydroxysuccinimide ester, succinimidyl ester, epoxides, aryl halides, sulfasuccinimidyl esters, and maleimides. 10. The material of claim 1 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of glycolide, dl-lactide, d-lactide, l-lactide, caprolactone, dioxanone, and trimethylene carbonate. 11. The material of claim 10 wherein the crosslinking agent further comprises a polyalkylene oxide. 12. The material of claim 11 wherein the polyalkylene oxide has a molecular weight of less than 35,000 Daltons. 13. The material of claim 10 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 14. The material of claim 13 wherein the electrophile comprises a member chosen from the group consisting of carbodiimidazole, sulfonyl chloride, chlorocarbonates, n-hydroxysuccinimide ester, succinimidyl ester, epoxides, aryl halides, sulfasuccinimidyl esters, and maleimides. 15. The material of claim 1 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of polyhydroxyacids, polyorthocarbonate, polyanhydride, and polyphosphate. 16. The material of claim 15 wherein the crosslinking agent further comprises a polyalkylene oxide. 17. The material of claim 16 wherein the polyalkylene oxide has a molecular weight of less than 35,000 Daltons. 18. The material of claim 15 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 19. The material of claim 18 wherein the electrophile comprises a member chosen from the group consisting of carbodiimidazole, sulfonyl chloride, chlorocarbonates, n-hydroxysuccinimide ester, succinimidyl ester, epoxides, aryl halides, sulfasuccinimidyl esters, and maleimides. 20. A system for administering an albumin material, the system comprising albumin and a crosslinking agent that is reactable with the albumin to form a covalently crosslinked material consisting essentially of albumin covalently crosslinked with only an n-functional crosslinking agent wherein n is at least 3. 21. The system of claim 20 wherein the crosslinking agent comprises a polyalkylene oxide. 22. The system of claim 26 wherein the crosslinking agent comprises a polyalkylene oxide. 23. The system of claim 20 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of glycolide, dl-lactide, d-lactide, l-lactide, caprolactone, dioxanone, and trimethylene carbonate. 24. The system of claim 20 wherein the polyalkylene oxide has a molecular weight of less than 35,000 Daltons. 25. The system of claim 20 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 26. The system of claim 20 further comprising a device for applying the albumin and crosslinking agent to a patient. 27. The system of claim 26 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of glycolide, dl-lactide, d-lactide, l-lactide, caprolactone, dioxanone, and trimethylene carbonate. 28. The system of claim 26 wherein the polyalkylene oxide has a molecular weight of less than 35,000 Daltons. 29. The system of claim 26 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 30. A method of making a biocompatible crosslinked albumin material, the method consisting essentially of: mixing albumin with only an n-functional crosslinking agent to covalently crosslink the albumin essentially with only the crosslinking agent to create the biocompatible crosslinked albumin material, wherein n is at least 3. 31. The method of claim 30 wherein the crosslinking agent comprises a polyalkylene oxide. 32. The method of claim 30 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of glycolide, dl-lactide, d-lactide, l-lactide, caprolactone, dioxanone, and trimethylene carbonate. 33. The method of claim 30 wherein the crosslinking agent further comprises a biodegradable region comprising a member of the group consisting of polyhydroxyacid, polyorthocarbonate, polyanhydride, and polyphosphate. 34. The method of claim 30 wherein the crosslinking agent further comprises a biodegradable region comprising a polyaminoacid. 35. The method of claim 30 wherein the crosslinking agent further comprises an activated functional group that is an electrophile. 36. The method of claim 30 wherein the crosslinked albumin material is a medical. 37. The method of claim 30 wherein the medical device is prepared for a procedure chosen from the group consisting of cardiovascular surgery, orthopaedic surgery, neurosurgery, ophthalmic surgery, traumatology, plastic reconstruction, maxillofacial surgery, and otorhinolaryngology.