Experimental and Theoretical Analysis of Metal Complex Diffusion through Cell Monolayer

Gałczyńska, Katarzyna; Rachuna, Jarosław; Ciepluch, Karol; Kowalska, Magdalena; Wa̡sik, Sławomir; Kosztołowicz, Tadeusz; Lewandowska, Katarzyna D.; Semaniak, J.; Kurdziel, Krystyna; Arabski, Michał

doi:10.3390/e23030360

Cited by 2 publications

(2 citation statements)

References 55 publications

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“…The study of transport processes through polymeric membranes is an interesting but also a difficult and complex issue, especially if nonlinear and structure-morphology problems have to be addressed [1][2][3][4][5][6][7][8]. Research on the improvement of the efficiency of the separation processes can lead in two directions.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Drift Influence on Diffusion Transport through the Hybrid Membrane

et al. 2022

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Sodium alginate membranes filled with iron oxide nanoparticles consist of a mixture of organic and inorganic phases. This design offers the possibility to combine the polymer’s easy processability and superior separation performance. For a better understanding of the mechanisms of mixture separation, we analyze the diffusion motion of a particle in the hybrid membrane environment. We model structures of two-dimensional heterogenic membranes, which resemble real membrane structures, and then we simulate a random walk on them. We investigate how the additional action of drift changes the motion properties of the diffusing particles through the polymeric membrane filled with inorganic powder. We test the effect of two parameters: the distribution of obstacles (filling) in the membrane and the value of drift on the nature of diffusion. It appears that the synergy between drift, the diffusion, and the membrane structure affect the occurrence of the superdiffusive and subdiffusive character of particle motion as measured by the time-averaged mean square displacement. An important point is the observation that the strong drift supports subdiffusive motion as it increases the chances of particle trapping. Moreover, there exists the optimal value of drift, for which the transport through a membrane speeds up and does not cause trapping.

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Section: Introductionmentioning

confidence: 99%

Numerical Study of Drift Influence on Diffusion Transport through the Hybrid Membrane

et al. 2022

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“…The 𝑑𝑑𝐶𝐶 𝑠𝑠 𝑟𝑟 was measured by a Rayleigh interferometer based on previously calculated feature curves, i.e., the experimental dependence of the shift of the interference bars (Δn) as a function of the ethanol concentration (C) [38]. The study was carried out at 𝜎𝜎 = 295 K. A laser interferometry method can also be used to determine 𝑑𝑑𝐶𝐶 𝑠𝑠 𝑟𝑟 [39][40][41]. We measured Δ𝑉𝑉 𝑟𝑟 and 𝑑𝑑𝐶𝐶 𝑠𝑠 𝑟𝑟 under intense mechanical stirring of the solutions at 500 rpm, and when steady-state flows were obtained, the stirring of the solutions was turned off.…”

Section: Membrane Systemmentioning

confidence: 99%

Evaluation of Transport Properties and Energy Conversion of Bacterial Cellulose Membrane Using Peusner Network Thermodynamics

Ślęzak-Prochazka

Batko

Ślęzak

2022

Entropy

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We evaluated the transport properties of a bacterial cellulose (BC) membrane for aqueous ethanol solutions. Using the Rr version of the Kedem–Katchalsky–Peusner formalism (KKP) for the concentration polarization (CP) conditions of solutions, the osmotic and diffusion fluxes as well as the membrane transport parameters were determined, such as the hydraulic permeability (Lp), reflection (σ), and solute permeability (ω). We used these parameters and the Peusner () coefficients resulting from the KKP equations to assess the transport properties of the membrane based on the calculated dependence of the concentration coefficients: the resistance, coupling, and energy conversion efficiency for aqueous ethanol solutions. The transport properties of the membrane depended on the hydrodynamic conditions of the osmotic diffusion transport. The resistance coefficients , , and were positive and higher, and the coefficient was negative and lower under CP conditions (higher in convective than nonconvective states). The energy conversion was evaluated and fluxes were calculated for the U-, F-, and S-energy. It was found that the energy conversion was greater and the S-energy and F-energy were lower under CP conditions. The convection effect was negative, which means that convection movements were directed vertically upwards. Understanding the membrane transport properties and mechanisms could help to develop and improve the membrane technologies and techniques used in medicine and in water and wastewater treatment processes.

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Experimental and Theoretical Analysis of Metal Complex Diffusion through Cell Monolayer

Cited by 2 publications

References 55 publications

Numerical Study of Drift Influence on Diffusion Transport through the Hybrid Membrane

Numerical Study of Drift Influence on Diffusion Transport through the Hybrid Membrane

Evaluation of Transport Properties and Energy Conversion of Bacterial Cellulose Membrane Using Peusner Network Thermodynamics

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