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US 5,308,620 AGranted
Protein nanomatrixes and method of production
AssigneeHemoshpere, Inc.
InventorRichard C. K. Yen
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AssigneeHemoshpere, Inc.
InventorRichard C. K. Yen
Estimating the term…
The present invention is a novel method of producing a unique device of stable porous and membraneless nanomatrixes for carrying medication for in vivo administration. The present invention method produces the device of stable nanomatrixes by mixing a first type of protein which is hemoglobin, a second type of protein which is albumin, and a solution containing an organic solvent which is an alcohol, where the weight ratio of the first and second type of proteins is within the range of approximately 92.+-.5 to 8.+-.5. This results in a turbid suspension of monodispersed nanomatrixes which are typically larger than 1 micron but less than 4 microns in diameter and stable against aggregation and re-solubilization in hypotonic saline for at least 24 hours. An additional solution containing a biologically active substance may be added before or after the solution containing an organic solvent, such that the biologically active substance is entrapped within or bound on the surfaces of the nanomatrixes.
A composition comprising stable porous and membraneless nanomatrixes for carrying medication for in vivo administration, where the nanomatrixes are typically larger than 1 micron but less than 4 microns in diameter, and stable against aggregation and re-solubilization in hypotonic 0.009% saline for at least 24 hours, the nanomatrixes consisting of hemoglobin and albumin, where the weight ratio of said hemoglobin and albumin is between approximately 57:43 and 92:8.
Dependencies are inferred from the claim text.