Biocompatible phase invertible proteinaceous compositions and methods for making and using the same
View Patent ↗Biocompatible phase invertible proteinaceous compositions and methods for making and using the same are provided. The subject phase invertible compositions are prepared by combining a crosslinker and a proteinaceous substrate. The proteinaceous substrate includes one or more proteins and a polyamine, where the polyamine and a proteinaceous substrate are present in synergistic viscosity enhancing amounts, and may also include one or more of: a carbohydrate, a tackifying agent, a plasticizer, or other modification agent. In certain embodiments, the crosslinker is a heat-treated dialdehyde, e.g., heat-treated glutaraldehyde. Also provided are kits for use in preparing the subject compositions. The subject compositions, kits and systems find use in a variety of different applications.
1. A phase invertible composition produced by combining:
a substrate comprising a polyamine and a proteinaceous material in a weight ratio having a synergistic viscosity enhancing effect, wherein the combination of the polyamine and the proteinaceous material has a viscosity which is greater than that of either the polyamine or the proteinaceous material alone; and
a crosslinking agent, wherein the crosslinking agent causes the polyamine and the proteinaceous material to crosslink and the polyamine and the proteinaceous material crosslink in the presence of the crosslinking agent,
wherein said substrate has a kinematic viscosity of about 70 to 200 centistokes,
wherein said proteinaceous material is selected from the group consisting of albumin, elastin, fibrin and soluble and insoluble forms of collagen and combinations thereof, and
wherein the crosslinking agent comprises a macromolecular crosslinking agent comprising a reaction product of an excess of a liquid aldehyde cross linking agent and a glycosaminoglycan.
2. The phase invertible composition according to claim 1 , wherein said polyamine is a polyalkyienimine.
3. The phase invertible composition according to claim 2 , wherein said polyalkyenimine is a polyethylenimine.
4. The phase invertible composition according to claim 3 , wherein said polyethylenimine is a branched polyethylenimine.
5. The phase invertible composition according to claim 4 , wherein the weight ratio of branched polyethylenimine to proteinaceous material is about 1:5 to 80.
6. The phase invertible composition according to claim 5 , wherein the weight ratio of branched polyethylenimine to proteinaceous material is about 1:10 to 40.
7. The phase invertible composition according to claim 1 , wherein said substrate further comprises a carbohydrate.
8. The phase invertible composition according to claim 7 , wherein said carbohydrate is chitosan.
9. The phase invertible composition according to claim 1 , wherein said crosslinking agent comprises an aldehyde.
10. The phase invertible composition according to claim 9 , wherein said aldehyde is glutaraldehyde.
11. The phase invertible composition according to claim 10 , wherein said glutaraldehyde is heat stabilized.
12. The phase invertible composition according to claim 1 , wherein said glycosaminoglycan is hyaluronan.
13. The phase invertible composition according to claim 1 , wherein the viscosity of said substrate approximates that of said crosslinking agent.
14. The phase invertible composition according to claim 13 , wherein said crosslinking agent further comprises a viscosity modifying agent.
15. The phase invertible composition according to claim 1 , wherein said substrate further comprises an agent selected from the group consisting of a tackifying agent, and a plasticizing agent.
16. The phase invertible composition according to claim 1 , wherein said crosslinking agent further comprises an agent selected from the group consisting of a tackifying agent, and a plasticizing agent.
17. A method for treating a host, said method comprising delivering the composition of claim 1 to a target location.
18. A method of producing a phase invertible composition, said method comprising:
combining:
(a) a liquid substrate comprising a polyamine and a proteinaceous material in a weight ratio having a synergistic viscosity enhancing effect, the weight ratio of polyamine to proteinaceous material being about 1:4 to 1:400, wherein the combination of the polyamine and the proteinaceous material has a viscosity which is greater than that of either the polyamine or the proteinaceous material alone; and
(b) a liquid crosslinking agent to cause the polyamine and the proteinaceous material to crosslink to produce said phase invertible composition, wherein the polyamine and the proteinaceous material crosslink in the presence of the crosslinking agent,
wherein said substrate has a kinematic viscosity of about 70 to 200 centistokes,
wherein said proteinaceous material is selected from the group consisting of albumin, elastin, fibrin and soluble and insoluble forms of collagen and combinations thereof and
wherein the crosslinking agent comprises a macromolecular crosslinking agent comprising a reaction product of an excess of a liquid aldehyde cross linking agent and a glycosaminoglycan.
19. A solid phase composition produced by the method of claim 18 .
20. A kit for producing a phase invertible composition, said kit comprising:
(c) a substrate comprising a polyamine and a proteinaceous material in a weight ratio which produces a synergistic viscosity enhancing effect when combined, the weight ratio of polyamine to proteinaceous material being in the range from 1:5 to 1:100, wherein the combination of the polyamine and the proteinaceous material has a viscosity which is greater than that of either the polyamine or the proteinaceous material alone; and
a crosslinking agent composition comprising a crosslinking agent, wherein the crosslinking agent causes the polyamine and the proteinaceous material to crosslink and the polyamine and the proteinaceous material crosslink in the presence of the crosslinking agent,
wherein said substrate has a kinematic viscosity of about 70 to 200 centistokes,
wherein said proteinaceous material is selected from the group consisting of albumin, elastin, fibrin and soluble and insoluble forms of collagen and combinations thereof and
wherein the crosslinking agent comprises a macromolecular crosslinking agent comprising a reaction product of an excess of a liquid aldehyde cross linking agent and a glycosaminoglycan.
21. The kit according to claim 20 , wherein said kit further comprises a phase invertible fluid delivery device.