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Performance Comparison of a Laterally-Fed Membrane Chromatography (LFMC) Device with a Commercial Resin Packed Column

Department of Chemical Engineering, McMaster University, 1280 Main Street W., Hamilton, ON L8S 4L8, Canada
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Membranes 2019, 9(11), 138; https://doi.org/10.3390/membranes9110138
Received: 5 August 2019 / Revised: 17 October 2019 / Accepted: 24 October 2019 / Published: 29 October 2019
(This article belongs to the Special Issue Membrane Chromatography for Biomolecules Purification)
The use of conventional membrane adsorbers such as radial flow devices is largely restricted to flow-through applications, such as virus and endotoxin removal, as they fail to give acceptable resolution in bind-and-elute separations. Laterally-fed membrane chromatography or LFMC devices have been specifically developed to combine high-speed with high-resolution. In this study, an LFMC device containing a stack of strong cation exchange membranes was compared with an equivalent resin packed column. Preliminary characterization experiments showed that the LFMC device had a significantly greater number of theoretical plates per metre than the column. These devices were used to separate a ternary model protein mixture consisting of ovalbumin, conalbumin and lysozyme. The resolution obtained with the LFMC device was better than that obtained with the column. For instance, the LFMC device could resolve lysozyme dimer from lysozyme monomer, which was not possible using the column. In addition, the LFMC device could be operated at lower pressure and at significantly higher flow rates. The devices were then compared based on an application case study, i.e., preparative separation of monoclonal antibody charge variants. The LFMC device gave significantly better separation of these variants than the column. View Full-Text
Keywords: membrane chromatography; laterally-fed membrane chromatography; resin column; chromatography; monoclonal antibody; charge variants membrane chromatography; laterally-fed membrane chromatography; resin column; chromatography; monoclonal antibody; charge variants
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MDPI and ACS Style

Madadkar, P.; Sadavarte, R.; Ghosh, R. Performance Comparison of a Laterally-Fed Membrane Chromatography (LFMC) Device with a Commercial Resin Packed Column. Membranes 2019, 9, 138.

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