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SPR sensogram on the adsorption of 0.1 mg/mL human IgG on cellulose. (a) CMC-modified cellulose (b), and chitosan modified cellulose (c), from aqueous solutions of pH 5.0, 6.2, 7.4, and 8.0 (the respective curves follow the same order from top down). Corresponding calculated adsorbed mass is indicated as a function of pH in the inserts (calculated from SPR data modeling). Reproduced with permission from Orelma et al. (2011).
