Renewable energy sources are gaining increasing significance in the global pursuit of sustainable development. Among these, biodiesel stands out as a promising alternative to conventional fossil fuels. Biodiesel is typically produced from vegetable oils through a process known as transesterification, which yields fatty acid methyl esters (FAME). Th

Nanoparticles demonstrate unique optical properties that have sparked significant interest in their application for diverse technological domains. Upconversion nanoparticles (UCNPs), a particular class of nanomaterials, exhibit the remarkable ability to convert near-infrared light into visible light. This phenomenon has opened vast possibilities in