Affinity membrane separation techniques combine the specificity of affinity adsorption with the unique hydrodynamic characteristics of porous membranes. They provide low pressure separation systems which are easy to scale up and ideal for the processing of large volumes of potentially viscous feed solutions (e.g. microbial broth, bacterial cell extract, conditioned media) often involved in the production of recombinant proteins. The additional microfiltration effect of membranes allows for the processing even of unclarified, particle-containing feed solutions. The high performance of this separation technique is due to the presence of through-pores and the absence of diffusional limitations; mass transfer is mainly governed by forced convection. Affinity membranes are used in applications such as purification of biomolecules, final product polishing, removal of unwanted substances from patients' blood in extracorporeal circuits, but also

G. Johansson, Center for Chemistry and Chemical Engineering, Lund University, Lund, Sweden

Copyright © 2000 Academic Press

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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