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GRAFTED POLYMERS APPLICATION IN AFFINITY SEPARATION OF PROTEINS
Faculty
Science
Year:
2008
Type of Publication:
Theses
Pages:
Authors:
El-Fawal Gomaa Farouk Kamel
BibID
10262345
Keywords :
Title
Abstract:
The work in this thesis was focused on the preparation of immobilized metal ion affinity membranes (IMAMs) to be used in the separation and purification of histidine tag (His-Tag) protein from protein mixture.The work in this thesis is directed towards the development of polymeric affinity separation membranes, modified by grafting technique, which can be employed in arrange of potential applications of separating of protein aqueous mixtures. Commercially avaiThe functionalization of cellophane membrane by introducing metal ion as selective ion for target proteins (His-Tag proteins) is suggested to be accomplished by the three following steps:1-grafting with methacrylic acid and methyl methacrylateIn the membrane preparation, the functionalization process through grafting of cellophane membranes with MMA&MAA using potassium persulphate and potassium persulphate with sodium bisulphite initiation system respectively have been studied by exploring the2- immobilization of cupper ionsThe factor affecting the immobilization of Cu+2 ions on cellophane functionalized membrane have been studied (like pH, Time,...etc.)3-his-tag protein purificationMembranes with the highest amount of immobilized Cu+2 ions were used in studying the process of proteins separation. Different factors affecting on both the proteins adsorption and elution steps have been studied by the membranes interaction with both pro
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