  In this paper, we examine the light scattering by the flow of levitated
flakes in a micro-channel to characterize the tunable functionality of the
graphene oxide liquid crystal in the nematic phase. Light interaction with the
mentioned material is decomposed to the scattered and transmitted parts and
they can determine the orientation of the flakes. Our results demonstrate that,
pumping the graphene oxide sample through the micro-channel leads to increase
the amplitude of scattered light. The time averaged of scattered light
intensity grows by increasing volume fraction. We also find that, the higher
volume fraction, the sooner reaching to saturated normalized scattered
intensity is. To get deep insight about our experimental results, we rely on
the general theoretical properties of the light scattering cross-section
incorporating the fluctuation of director vector and dielectric tensor. Our
proposal is a promising approach to carry out the mechanical-hydrodynamical
approach for controlling the orientation of a typical liquid crystal.
