CA2207988A1 - Cellulose membrane and method for manufacture thereof - Google Patents
Cellulose membrane and method for manufacture thereofInfo
- Publication number
- CA2207988A1 CA2207988A1 CA 2207988 CA2207988A CA2207988A1 CA 2207988 A1 CA2207988 A1 CA 2207988A1 CA 2207988 CA2207988 CA 2207988 CA 2207988 A CA2207988 A CA 2207988A CA 2207988 A1 CA2207988 A1 CA 2207988A1
- Authority
- CA
- Canada
- Prior art keywords
- cellulose
- film
- produced
- stirred tank
- useful
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920002678 cellulose Polymers 0.000 title abstract 7
- 239000001913 cellulose Substances 0.000 title abstract 7
- 239000012528 membrane Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 235000002837 Acetobacter xylinum Nutrition 0.000 abstract 2
- 241001136169 Komagataeibacter xylinus Species 0.000 abstract 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 abstract 2
- 239000002904 solvent Substances 0.000 abstract 2
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 abstract 1
- 238000005266 casting Methods 0.000 abstract 1
- 238000001879 gelation Methods 0.000 abstract 1
- 239000003906 humectant Substances 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
Landscapes
- Materials For Medical Uses (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
Cellulose films useful as wound and burn dressings are prepared from a solution of cellulose produced by Acetobacter xylinum in a stirred tank. The materials of this invention comprise a film of microbially produced cellulose, particularly cellulose produced from the culture of Acetobacter xylinum in a stirred tank. The film is made by dissolving the cellulose in a solvent system comprising dimethylacetamide and lithium chloride, casting the resulting solution onto a flat surface and regenerating the film in a gelation bath. Humectant is incorporated into the film by solvent exchange. The film is then sterilized and packaged for long term storage. These films are strong and elastic having mechanical properties superior to plant derived cellulose membranes and similar to that of the human skin and are useful as wound dressings.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9612546.3 | 1996-06-14 | ||
| GBGB9612546.3A GB9612546D0 (en) | 1996-06-14 | 1996-06-14 | Dressing for wound and method of manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2207988A1 true CA2207988A1 (en) | 1997-12-14 |
| CA2207988C CA2207988C (en) | 2001-09-11 |
Family
ID=10795350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2207988 Expired - Fee Related CA2207988C (en) | 1996-06-14 | 1997-06-16 | Cellulose membrane and method for manufacture thereof |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2207988C (en) |
| GB (1) | GB9612546D0 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050037082A1 (en) * | 2003-08-13 | 2005-02-17 | Wan-Kei Wan | Poly(vinyl alcohol)-bacterial cellulose nanocomposite |
| CN102888027B (en) * | 2012-09-26 | 2014-10-08 | 华南理工大学 | Bacterial cellulose/collagen-chitosan composite material and preparation method thereof |
-
1996
- 1996-06-14 GB GBGB9612546.3A patent/GB9612546D0/en active Pending
-
1997
- 1997-06-16 CA CA 2207988 patent/CA2207988C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2207988C (en) | 2001-09-11 |
| GB9612546D0 (en) | 1996-08-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4161948A (en) | Synthetic membrane for wound-dressings | |
| US5141747A (en) | Denatured collagen membrane | |
| US4592864A (en) | Aqueous atelocollagen solution and method of preparing same | |
| US5015677A (en) | Adhesives derived from bioadhesive polyphenolic proteins | |
| CA1202904A (en) | Chitosan based wound dressing materials | |
| US6175053B1 (en) | Wound dressing material containing silk fibroin and sericin as main component and method for preparing same | |
| CA1213521A (en) | Hydrophilic biopolymeric copolyelectrolytes, and biodegradable dressings comprising same | |
| EP0200574A2 (en) | A biomaterial comprising a composite material of chitosan derivative and collagen and a process for the production of the same | |
| US4642118A (en) | Man-made skin composed of two layers: collagen and a poly-alpha-amino acid | |
| KR100334486B1 (en) | Wound covering material | |
| WO2003020191A1 (en) | Cellulose membranes for biodegradable scaffolds | |
| JP2008291258A (en) | Water-soluble elastin crosslinking agent | |
| JPH0678460B2 (en) | Porous transparent polyvinyl alcohol gel | |
| JP2001120267A (en) | Cell culture carrier and method for culturing cells using the carrier | |
| WO2002002159A1 (en) | Base materials for tissue regeneration, transplant materials and process for producing the same | |
| FI71944C (en) | Hydrophilic biopolymer copolyelectrolytes, and these contain biodegradable wound dressings. | |
| JPH0669485B2 (en) | Molded product containing silk fibroin | |
| CN114470313B (en) | A biomimetic mechanically active hydrogel adhesive and preparation method thereof | |
| CA2207988A1 (en) | Cellulose membrane and method for manufacture thereof | |
| CN110218342A (en) | Agarose-gelatin graft temperature-sensitive hydrogel and the preparation method and application thereof | |
| CN109908394A (en) | Degradable medical antibacterial anti-leakage protective film and preparation method thereof | |
| CN116144082A (en) | Sodium hyaluronate and chitosan composite gel and preparation method and application thereof | |
| JPS63152601A (en) | Composite material of modified cellulose gel produced by microorganism and of animal cell membrane | |
| JPH02233128A (en) | Oxygen permeable membrane | |
| KR900006892B1 (en) | Functional gelatin-based artificial skin and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20170616 |