Zakari, D. et al. 2026. Hydrogen and methane production using engineered microbes integrated with functional nanomaterials catalyst: A comprehensive review Running Title: Nanomaterial-Enhanced Microbial Bio-fuel Production. Eurasian Journal of Physics and Functional Materials. 10, 1 (Feb. 2026), 25–33. DOI:https://doi.org/10.32523/ejpfm.2026100102.