Polydopamine film and preparation method and application thereof
US12031011B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2020 |
| Grant date | Jul 9, 2024 |
| Priority date | — |
| Expiry date | Aug 19, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2379/02
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed are a poly dopamine film and a preparation method and application thereof. The polydopamine film is loaded with silver sulfadiazine, and the preparation method achieves in-situ synthesis of si sulfadiazine on a conventional polydopamine film by microwave irradiation. In the method, the sulfadiazine is not dissolved in conventional aqueous ammonia, which has the following advantages: firstly, preventing the polydopamine film from being corroded by the aqueous ammonia; secondly, protecting mucosa such as eyes and nasal cavities of workers from stimulation and corrosion of the aqueous ammonia; and thirdly, avoiding the environmental problem caused by pungent odor and fumes emitted from high-concentration aqueous ammonia. In the method, without using the catalyst trifluoromethanesulfonic acid or trifluoromethanesulfonic salt, not only is the loading of silver sulfadiazine increased, but also the safely performance can be further improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.