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 in-depth analysis of the toxicity associated with upconversion nanoparticles. It investigates various as

Zinc oxide is a compound renowned for its remarkable power to protect delicate skin. This soothing element has long been used in a number of skincare products, from sunscreens to diaper rash creams, due to its outstanding protective qualities. Creating a physical shield on the skin's exterior, zinc oxide effectively reflects harmful radiation, he