In the present analysis, an effort has been made to highlight the behavior of thermophoresis and Brownian motion parameters on the movement of micropolar nanofluid between two plates separated by common height across the entire length. Different temperature and concentration values are used at the boundaries and are fixed by a specific value. It is to be noted that the fluids are periodically withdrawn and injected from the upper and lower plates. The partial differential equations underwent a transformation into a system of ordinary differential equations by implementing similarity transformations. To obtain the solution to the problem, a fourth-order Runge-Kutta system was employed. A graphical analysis of the non-dimensionless velocity, mass and heat profiles is conducted to investigate the influence of different fluid and geometrical parameters.