Navas-Pinto W, Cree DE, Wilson LD, Barrionuevo GO, Sánchez-Sánchez X, Calvopiña H. Characterization of graphene oxide synthesized through a modified Hummers method. ings [Internet]. 2025 Oct. 13 [cited 2026 Oct. 29];(34):31-42. Available from: https://ingenius.ups.edu.ec/ingenius/article/view/9511