Onn, Syahidah, et al. “Physical Coating of Mesoporous Silica Nanoparticles With Poly (2-Vinyl Pyridine) and Polyvinylpyrrolidone for the Adsorption and Release of 5- Fluorouracil”. Malaysian Journal of Catalysis, vol. 4, no. 1, June 2020, doi:10.11113/mjcat.v4n1.141.