Upconversion nanoparticles exhibit unique optical properties, making them attractive for applications in bioimaging, sensing, and disease management. However, their potential toxicity remains a considerable concern. This review aims to provide a comprehensive analysis of the toxicity associated with upconversion nanoparticles. It explores various a

Lithium cobalt oxide materials, denoted as LiCoO2, is a prominent chemical compound. It possesses a fascinating configuration that facilitates its exceptional properties. This layered oxide exhibits a high lithium ion conductivity, making it an ideal candidate for applications in rechargeable power sources. Its robustness under various operating co