Cellulose substrates, compositions and methods for storage and analysis of biological materials
US8409526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2010 |
| Grant date | Apr 2, 2013 |
| Priority date | — |
| Expiry date | Mar 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/25
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides a method and article for storing genetic material or analytes from a biological sample by contacting said biological sample with a cellulose substrate comprising structural units of Formula Iwherein X and Y are independently N—O-L-A or O, with the proviso that when Y is O, then X is N—O-L-A, and when X is O, then Y is N—O-L-A; L is a direct bond, an aliphatic radical, an aromatic radical, a cycloaliphatic radical, or a combination thereof; and A=COOH, SO3H, or a combination thereof. The invention also relates to a cellulose substrate comprising the structural units of Formula I, and a method of manufacturing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.