Modified microbially-produced cellulose gel with human epidermal cells adsorbed thereon for use as a skin graft or vulnerary cover
US5558861A · kind A · utility
29Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 5, 1995 |
| Grant date | Sep 24, 1996 |
| Priority date | — |
| Expiry date | Dec 5, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/948
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Disclosed is a gel of microbially-produced cellulose, characterized in that the microbially-produced cellulose is modified by (1) physically or chemically bonding an animal cell adhesive protein to the cellulose, and/or (2) substituting hydrogen atoms of at least parts of hydroxyl groups of the cellulose with a positively or negatively charged organic group. This gel is valuable as a carrier for mass culture of animal cells or as a medical vulnerary cover.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.