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Protein adsorption from 3.3, 10, or 33% cow serum on poly(SBMAA-3)- and poly(SBMAA-2)-coated gold surfaces as measured by SPR. Averages of three independent measurements are shown; error bars represent standard deviations of those measurements. The SPR data were obtained using dialyzed serum solutions as otherwise artifacts were seen in the sensorgrams caused by differences in salt concentration (see Supporting Information for further explanation).
