Antioxidant Potential of the Biosynthesized Silver, Gold and Silver-Gold Alloy Nanoparticles using Opuntia ficus-indica extract. Fountain Journal of Natural and Applied Sciences, [S. l.], v. 10, n. 2, 2021. DOI: 10.53704/fujnas.v10i2.354. Disponível em: http://www.fountainjournals.com/index.php/FUJNAS/article/view/354. Acesso em: 2 apr. 2026.