Preparation method and application of hollow ceria nanoparticles
Hollow cerium dioxide nanoparticles were prepared by template method and solvothermal reaction, which solved the problems of non-uniform size and small specific surface area in the existing technology, and realized the biomedical application of efficient removal of reactive oxygen species.
CN118637657BActive Publication Date: 2026-05-29SHANGHAI UNIV
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANGHAI UNIV
- Filing Date
- 2024-04-29
- Publication Date
- 2026-05-29
Smart Images
Figure CN118637657B_ABST
Abstract
The application provides a preparation method and application of hollow cerium dioxide nanoparticles, and the preparation method comprises the following steps: (1) preparing nanosilica particles by a solvothermal method to obtain a powder; (2) generating a cerium dioxide shell layer on the surface of the nanosilica particle template by the solvothermal method to obtain a powder; (3) calcining the obtained powder; and (4) etching the core-shell structure nanoparticles by alkali to obtain the hollow cerium dioxide nanoparticles. The nanoscale hollow cerium dioxide nanoparticles are synthesized through a simple reaction, the size and morphology are uniform, the synthesis steps are simple, and the hollow cerium dioxide nanoparticles are suitable for batch production. Through experiments, the hollow cerium dioxide nanoparticles have peroxidase and superoxide dismutase enzyme-like activities, so that the hollow cerium dioxide nanoparticles have good scavenging capacity for active oxygen and are suitable for application in biomedical research.
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
A hollow spherical cerium dioxide nanomaterial, its preparation method and application
CN112909236B
A two-step method for preparing cerium dioxide nanoparticles
CN114368773B