Cryoprotectant solution containing dimethyl sulfoxide, an amide and ethylene glycol
US6395467B1 · kind B1 · utility
24Cited by
3References
15Claims
0Family size
Inventors
Key dates
| Filing date | Sep 21, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | Sep 21, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K5/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A cryoprotectant solution used for preserving biological material comprising cells is disclosed. The solution comprises dimethyl sulfoxide, an amide such as formamide, urea, acetamide, hydroxyurea, N-methyl formamide, and ethylene glycol or ethylene glycol in combination with propylene glycol wherein the propylene glycol replaces less than 8% w/v of the ethylene glycol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.