%0 Journal Article %T Waste-to-fuel: Biodiesel Production from Watermelon Seed Oil Using Sustainable CaO Nano Catalyst %A Beula Chandrika %A Srilekshmi Muraleedharan %A Naveen S Francis %D 2026 %R 10.13074/jent.2026.06.2612020 %J Journal of Environmental Nanotechnology %P 649-655 %V 15 %N 2 %I Institute for Environmental Nanotechnology %U https://doi.org/10.13074/jent.2026.06.2612020