General method to quickly remove cryoprotectants from animal cells while maintaining viability
AssigneeMethodist Hospital of Indiana, Inc.
InventorsJohn K. Critser, D. Y. Gao
Life of this patent
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AssigneeMethodist Hospital of Indiana, Inc.
InventorsJohn K. Critser, D. Y. Gao
Estimating the term…
A mathematical model, and membranes and devices based upon that model, to optimize protocols for the addition or removal of cryoprotectant to or from biological cells. This disclosure describes the use of four equations to predict optimal protocols to add or remove cryoprotectant to or from biological cells. The equations particularly require experimentally found data, specific to cell-type and species, regarding the osmotic tolerance of the cells, where osmotic tolerance refers to the cells ability to shrink or swell to various changes in osmolality without injury. The equations further require the cryoprotectant permeability coefficient and the water permeability coefficient of the particular cells' plasma, membrane. These coefficients are found with experimental data of the knetic volume change of the cell-type to a known concentration and temperature of cryoprotectant. Also disclosed are particularly preferred methods and devices to add or remove cryoprotectant to or from these cells based upon these equations.
A method to remove cryoprotectant from the cells of an animal species containing cryoprotectant comprising:
A method to remove cryoprotectant from the cells of an animal species containing cryoprotectant comprising:
A method to remove cryoprotectant from the cells of an animal species containing cryoprotectant, comprising:
A method to remove cryoprotectant from the cells of an animal species, comprising:
Dependencies are inferred from the claim text.