Upconversion nanoparticles demonstrate 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 connected with upconversion nanoparticles. It explores various asp

Zinc oxide is a mineral renowned for its remarkable ability to protect delicate skin. This soothing component has long been utilized in a range of skincare products, from sunscreens to diaper rash creams, due to its exceptional protective qualities. Forming a physical shield on the skin's top layer, zinc oxide effectively reflects harmful radiati