Abstract
Electroosmotic flow and its effect are numerically studied in the polyelectrolyte layer-coated cylindrical nanopore. The flow characteristic of the electrokinetic consists of the Nernst–Planck equation for species distribution, the Brinkman modified Navier–Stoke equation for fluid flow and the Poisson equation for induced electric potential. These nonlinear coupled governing equations for potential distribution, ionic species distribution and fluid flow are solved through a finite volume method in staggered grid system for cylindrical coordinate. This study established the importance of the bulk ionic concentration, electrolyte pH, the softness of the polyelectrolyte layer, the nanopore geometries and potential of the polyelectrolyte layer and nanopore wall. Three functional group as Succinoglycan, Glycine, and Proline functional group are considered in this study. The average electroosmotic flow rate increases with polyelectrolyte segment for a fixed pH value in the succinoglycan functional group. The axial velocity increases with the pH values for fixed polyelectrolyte segment. The increase of softness parameter decreases the average flow. The increase in pH values increases the average flow for different bulk ionic concentration. The increase of ionic current with the pH values are more prominent for the negatively charged surface than zero-charged potential. The electric body force increase with the pH values for both zero-charged nanopore and negatively charged nanopore.
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References
Squires, A., Hersey, J.S., Grinstaff, M.W., Meller, A.: A nanopore-nanofiber mesh biosensor to control DNA translocation. J. Am. Chem. Soc. 135, 16304–16307 (2013)
Bergen, W.G., Wu, G.: Intestinal nitrogen recycling and utilization in health and disease. J. Nutr. 139, 821–825 (2009)
Wu, G., Bazer, F.W., Burghardt, R.C., Johnson, G.A., Kim, S.W., Knabe, D.A., Li, P., Li, X., McKnight, J.R., Satterfield, M.C., Spencer, T.E.: Proline and hydroxyprolinemetabolism: implications for animal and human nutrition. Amino Acids 40, 1053–1063 (2011)
Probstein, R.F.: Physicochemical Hydrodynamics: An Introduction, 2nd edn. Wiley Interscience, New York (1994)
Conlisk, A.T., McFerran, J.: Mass transfer and flow in electrically charged micro-and nanochannels. Anal. Chem. 74, 2139–2150 (2002)
Bera, S., Bhattacharyya, S.: On mixed electroosmotic-pressure driven flow and mass transport in microchannels. Int. J. Eng. Sci. 62, 165–176 (2013)
Wang, C.-Y., Liu, Y.-H., Chang, C.C.: Analytical solution of electro-osmotic flow in a semicircular microchannel, ?Phys. Fluids 20, 063105–063111 (2008)
Chang, L., Jian, Y., Buren, M., Liu, Q., Sunb, Y.: Electroosmotic flow through a microtube with sinusoidal roughness. J. Mol. Liq. 220, 258–264 (2016)
Rojasa, G., Arcosa, J., Peraltaa, M., Méndezb, F., Bautistaa, O.: Pulsatile electroosmotic flow in a microcapillary with the slip boundary condition, Colloids and Surfaces A: Physicochem. Eng. Aspects 513, 57–65 (2017)
Liu, B.-T., Tseng, S., Hsu, J.-P.: Analytical expressions for the electroosmotic flow in a charge-regulated circular channel. Electrochem. Commun. 54, 1–5 (2015)
Patwary, J., Chen, G., Das, S.: Efficient electrochemomechanical energy conversion in nanochannels grafted with polyelectrolyte layers with pH-dependent charge density. Microfluid Nanofluid 20, 37–51 (2016)
Ohshima, H.: Electrical phenomena of soft particles. A soft step function model. J. Phys. Chem. A. 116, 6473–6480 (2012)
Tessier, F., Slater, G.W.: Modulation of electroosmotic flow strength with end-grafted polymer chains. Macromolecules 39, 1250–1260 (2006)
Cao, Q., You, H.: Electroosmotic flow in mixed polymer brush-grafted nanochannels. Polymers 8, 438–449 (2016)
Bera, S., Bhattacharyya, S.: Effect of charge density on electrokinetic ions and fluid flow through polyelectrolyte coated nanopore. In: ASME-Fluids Engineering Division Summer Meeting, V01BT10A008-V01BT10A008 (2017). https://doi.org/10.1115/FEDSM2017-69194.
Ohshima, H.: A simple algorithm for the calculation of the electric double layer potential distribution in a charged cylindrical narrow pore. Colloid Polym. Sci. 294, 1871–1875 (2016)
Das, S.: Explicit interrelationship between Donnan and surface potentials and explicit quantification of capacitance of charged soft interfaces with pH-dependent charge. Colloids Surf. A: Physicochem. Eng. Aspects 462, 6974 (2014)
Chen, G., Das, S.: Electroosmotic transport in polyelectrolyte-grafted nanochannels with pH-dependent charge density. J. Appl. Phys. 117, 185304–185313 (2015)
Tseng, S., Lin, J.Y., Hsu, J.P.: Theoretical study of temperature influence on the electrophoresis of a pH-regulated polyelectrolyte. Anal. Chim. Acta. 847, 80–89 (2014)
Duval, J.F.L., Ohshima, H.: Electrophoresis of diffuse soft particle. Langmuir 22, 3533–3546 (2006)
van Dorp, S., Keyser, U.F., Dekker, N.H., Dekker, C., Lemay, S.G.: Origin of the electrophoretic force on DNA in solid-state nanopores. Nat. Phys. 5, 347–351 (2009)
Yeh, L.-H., Zhang, M., Qian, S., Hsu, J.-P.: Regulating DNA translocation through functionalized soft nanopores. Nanoscale 4, 2685–2693 (2012)
Leonard, B.P.: A stable and accurate convective modelling procedure based on quadratic upstream interpolation. Comput. Methods Appl. Mech. Eng. 19, 59–98 (1979)
Fletcher, C.A.J.: Computational Techniques for Fluid Dynamics, vol-I & II Springer Ser. Comput. Phy. Springer, Heidelberg, New York (1991)
Ai, Y., Zhang, M., Joo, S.W.: Cheney. M.A., Qian. S.: Effects of electro osmotic flow on ionic current rectification in conical nanopores. J. Phys. Chem. C. 114, 3883–3890 (2010)
Acknowledgements
Authors (S. Bera) wish to thank the Sci. & Eng. Research Board in Dept. of Sci. and Tech., Govt. of India for supporting financial assistant in the project of File No: ECR/2016/000771.
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Bera, S., Bhattacharyya, S., Ohshima, H. (2018). Numerical Study on the Influence of Diffused Soft Layer in pH Regulated Polyelectrolyte-Coated Nanopore. In: Ghosh, D., Giri, D., Mohapatra, R., Sakurai, K., Savas, E., Som, T. (eds) Mathematics and Computing. ICMC 2018. Springer Proceedings in Mathematics & Statistics, vol 253. Springer, Singapore. https://doi.org/10.1007/978-981-13-2095-8_13
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