Chitosan-coated superparamagnetic iron oxide nanoparticles synthesized using Carica papaya bark extract: Evaluation of antioxidant, antibacterial, and anticancer activity of HeLa cervical cancer cells - Altamimi Hanan Nasser; Bepari Asmatanzeem; Niazi Shaik Kalimulla; Al-Zharani Mohammed; Shaikh Mujeeb Ahmed; Assiri Ghadah Asaad; Paulpandi Manickam; Assiri Rasha Assad (Green Processing and Synthesis)