Upconversion nanoparticles exhibit unique optical properties, making them attractive for applications in bioimaging, sensing, and medical treatments. However, their potential toxicity remains a substantial concern. This review aims to provide a in-depth analysis of the toxicity connected with upconversion nanoparticles. It investigates various aspe

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