Composition, preparation, and use of chitosan shards for biomedical applications
US9259357B2 · kind B2 · utility
4Cited by
19References
7Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Apr 16, 2014 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Apr 16, 2034 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L5/08
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A thin chitosan-based material can be used for biomedical applications. The chitosan has been treated in a nitrogen field by applying energy to ionize nitrogen in and around the chitosan material. A single or multiple such treatments may be employed. For example, the chitosan material may be irradiated under nitrogen using γ-irradiation, treated under a nitrogen plasma, or both. A thin chitosan material can be readily treated by surface modifying treatments such as irradiating under nitrogen using γ-irradiation, treating under a nitrogen plasma, or both.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.