▎ 摘　　要

Diamond and graphene are carbide nanoparticles that have valuable biomedical applications in cancer therapy and drug delivery. The aim of this study is to analyze the couple stress nanofluid (blood-graphene/diamond) flow in an asymmetric channel with the effect of viscous dissipation, electromagnetohydrodynamics (EMHD), Joule heating, velocity slip and convective boundary conditions. The mathematical model is solved analytically under the assumptions of long wavelength and low Reynolds number. The impact of various parameters on velocity, temperature, heat transfer coefficient, pressure gradient, trapping, shear stress, and entropy generation are depicted pictorially. The results obtained indicate that diamond-based nanofluid has higher velocity than grapheme-based nanofluid, Bejan number enhances with increasing Brinkman number through entropy generation, and an increase in the couple stress parameter reduces the bolus size.