Alleviating Effect of a Magnetite (Fe 3 O 4) Nanogel against Waterborne-Lead-Induced Physiological Disturbances, Histopathological Changes, and Lead Bioaccumulation in African Catfish. - Rahman, Afaf N. Abdel; Elkhadrawy, Basma Ahmed; Mansour, Abdallah Tageldein; Abdel-Ghany, Heba M.; Yassin, Engy Mohamed Mohamed; Elsayyad, Asmaa; Alwutayd, Khairiah Mubarak; Ismail, Sameh H.; Mahboub, Heba H. (Gels (2310-2861), 2023)