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 thorough analysis of the toxicity associated with upconversion nanoparticles. It investigates various as

Zinc oxide is a compound renowned for its remarkable strength to shield delicate skin. This gentle component has long been used in a number of skincare products, from sunscreens to diaper rash creams, due to its remarkable protective properties. Creating a physical barrier on the skin's top layer, zinc oxide effectively website absorbs harmful ra