The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 20, 2026
Filed:
May. 23, 2023
Qingdao Agricultural University, Qingdao, CN;
Jian Ju, Qingdao, CN;
Jinglin Huang, Qingdao, CN;
Qianyu Li, Qingdao, CN;
Qingli Yang, Qingdao, CN;
Guangjie Che, Qingdao, CN;
Fangyuan Zhao, Qingdao, CN;
Qingdao Agricultural University, Qingdao, CN;
Abstract
A degradable nano-preservative film with photodynamic bactericidal activity and a preparation method therefor, and belongs to the technical field of antibacterial preservative films is provided. The present invention synthesizes nanoparticles with aggregation-induced emission characteristic by self-assembly of berberine that is a natural plant antibacterial component and citric acid. Under white light, the nanoparticles can generate a large amount of reactive oxygen species (ROS), thereby exhibiting efficient and durable antibacterial activity. Nanoparticles are prepared by adding the nanoparticles as a filler to a film-mixed solution composed of sodium alginate, pullulan and egg white. With photodynamic bactericidal activity, the present invention improves over current antibacterial preservative films having short lasting effect and which require direct contact to realize bactericidal effect.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile