Njike, Rene, et al. “Structural and Surface Properties of Polyvinylpyrrolidone and Aloe Vera - Capped Iron Oxide Nanoparticles: Application in the Photocatalytic Degradation of Methylene Blue”. European Journal of Chemistry, vol. 16, no. 3, Sept. 2025, pp. 233-41, doi:10.5155/eurjchem.16.3.233-241.2691.