Amaimen GuillénYeferzon ArdilaPaula Andrea PeñarandaMiranda BejaranoRicardo E. RivasJohann F. OsmaVerónica Akle2026-03-222026-03-22202310.2139/ssrn.4600916https://doi.org/10.2139/ssrn.4600916https://andeanlibrary.org/handle/123456789/84221enToxicityMagnetiteWastewaterZebrafishEnvironmental scienceSewage treatmentWaste managementEnvironmental chemistryPulp and paper industryFisheryLow Toxicity of Magnetite-Based Modified Bionanocomposites Used for Wastewater Treatment: Evaluation in a Zebrafish Animal Modelpreprint