US 12,220,463 B2
Quaternary ammonium cyclodextrin and preparation method and uses thereof, and silver nanoparticle-cyclodextrin complex and preparation method and uses thereof
Junfeng Liu, Wuhan (CN); Junfeng Zan, Wuhan (CN); Ping Wang, Wuhan (CN); Guohua Zheng, Wuhan (CN); Laichun Luo, Wuhan (CN); Cong Chang, Wuhan (CN); and Ke Yang, Wuhan (CN)
Assigned to Hubei University of Chinese Medicine, Wuhan (CN)
Filed by Hubei University of Chinese Medicine, Wuhan (CN)
Filed on Oct. 24, 2023, as Appl. No. 18/493,090.
Claims priority of application No. 202211318142.3 (CN), filed on Oct. 26, 2022.
Prior Publication US 2024/0156983 A1, May 16, 2024
Int. Cl. A61K 47/69 (2017.01); A61P 31/04 (2006.01)
CPC A61K 47/6951 (2017.08) [A61K 47/6929 (2017.08); A61P 31/04 (2018.01)] 5 Claims
OG exemplary drawing
 
1. A method of preparing a cationic β-cyclodextrin functionalized silver nanoparticles, comprising following steps:
adding a cationic β-cyclodextrin to water and adjusting a pH to 10-12, then adding a silver nitrate solution and reacting at 50-70° C. to afford the cationic β-cyclodextrin functionalized silver nanoparticles;
wherein the cationic β-cyclodextrin has a structural formula as represented below:

OG Complex Work Unit Chemistry