Quaternary ammonium cyclodextrin and preparation method and uses thereof, and silver nanoparticle-cyclodextrin complex and preparation method and uses thereof
US12220463B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2023 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Oct 24, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a cationic β-cyclodextrin and a preparation method and uses thereof, as well as a cationic β-cyclodextrin functionalized silver nanoparticles and a preparation method and uses thereof. The cationic β-cyclodextrin of the present invention is introduced with an amine group and quaternary ammonium groups, while retaining the special structure and properties of cyclodextrin itself. The amine group contained in the structure plays a role in reducing and complexing Ag+ in the synthesis of AgNPs, and plays a certain role in stabilizing nanoparticles and forming a complex in combination with quaternary ammonium groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.