Method for preserving viral particles
US8313897B2 · kind B2 · utility
6Cited by
1References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 19, 2008 |
| Grant date | Nov 20, 2012 |
| Priority date | — |
| Expiry date | Dec 16, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC12N2770/32151
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method for preserving viral particles comprises: (i) providing an aqueous solution of one or more sugars, a polyethyleneimine and said viral particles wherein the concentration of polyethyleneimine is 15 μM or less based on the number-average molar mass (Mn) of the polyethyleneimine and the sugar concentration or, if more than one sugar is present, total sugar concentration is greater than 0.1 M; and (ii) drying the solution to form an amorphous solid matrix comprising said viral particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.