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The investigation of the influence of drift on the behavior of diffusing particles through a polymeric membrane filled with inorganic powder is considered. In this case, we use sodium alginate as a polymer matrix filled with iron oxide nanoparticles. Such membranes can be considered as a mixture of organic and inorganic phases. The first set of analyses examined the impact of drift on particles diffusing through real hybrid membranes. The second part focus on random walk simulations on artificial membrane structures. We investigate how the action of drift changes the properties of the diffusing particles through the hybrid membranes. We test the effect of two parameters such as the distribution of filling in the membrane and the value of drift on the nature of diffusion. It seems that the interaction between drift, diffusion, and the membrane structure affects the occurrence of the superdiffusive and subdiffusive character of particle motion. An important point is that the steady drift supports subdiffusive motion as it increases the chances of particle trapping. Furthermore, there exists an optimal value of drift, for which the transport through a membrane speeds up and does not cause trapping.
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