Adsorption of Favipiravir on pristine graphene nanosheets as a drug delivery system: a DFT study. - Ibrahim MAA; Hamad MHA; Mahmoud AHM; Mekhemer GAH; Sidhom PA; Sayed SRM; Moussa NAM; Rabee AIM; Dabbish E; Shoeib T (RSC advances, 2023)