Microfluidics and Nanofluidics

, Volume 15, Issue 3, pp 285–296

Mathematical analysis of oxygen transfer through polydimethylsiloxane membrane between double layers of cell culture channel and gas chamber in microfluidic oxygenator

Research Paper

DOI: 10.1007/s10404-013-1142-8

Cite this article as:
Kim, MC., Lam, R.H.W., Thorsen, T. et al. Microfluid Nanofluid (2013) 15: 285. doi:10.1007/s10404-013-1142-8

Abstract

For successful cell culture in microfluidic devices, precise control of the microenvironment, including gas transfer between the cells and the surrounding medium, is exceptionally important. The work is motivated by a polydimethylsiloxane (PDMS) microfluidic oxygenator chip for mammalian cell culture suggesting that the speed of the oxygen transfer may vary depending on the thickness of a PDMS membrane or the height of a fluid channel. In this paper, a model is presented to describe the oxygen transfer dynamics in the PDMS microfluidic oxygenator chip for mammalian cell culture. Theoretical studies were carried out to evaluate the oxygen profile within the multilayer device, consisting of a gas reservoir, a PDMS membrane, a fluid channel containing growth media, and a cell culture layer. The corresponding semi-analytical solution was derived to evaluate dissolved oxygen concentration within the heterogeneous materials, and was found to be in good agreement with the numerical solution. In addition, a separate analytical solution was obtained to investigate the oxygen pressure drop (OPD) along the cell layer due to oxygen uptake of cells, with experimental validation of the OPD model carried out using human umbilical vein endothelial cells cultured in a PDMS microfluidic oxygenator. Within the theoretical framework, the effects of several microfluidic oxygenator design parameters were studied, including cell type and critical device dimensions.

Supplementary material

10404_2013_1142_MOESM1_ESM.doc (2.2 mb)
Supplementary material 1 (DOC 2208 kb)

Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.BioSystem and Micromechanics (BioSyM) IRGSingapore-MIT Alliance for Research and TechnologySingaporeSingapore
  3. 3.Department of Mechanical and Biomedical EngineeringCity University of Hong KongHong KongChina

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