Abstract
Purification and separation methods currently used for proteins are discussed, with a special emphasis on the application of these techniques to biologically inspired textile proteins. Many natural proteins found in a cell are enzymes that only function when soluble; in contrast, recombinant DNA proteins destined to be textiles will be required to function as insoluble or solid materials. The methods, which have to separate the target protein and purify it without severe losses of material, include filtration and centrifugation for insoluble removal, ultrasonic shock for mechanical cell disruption, chromatographic methods for soluble separations, and drying and crystallization for finishing.
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