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Recognition properties of PLL-g-[(PEGm)1−x(PEG-biotin)x] copolymers with x = 0 to 0.2. Surface concentrations of the mouse mAb incubated in PBS and streptavidin incubated in either PBS alone, previously mixed with free biotin, or incubated in PBS containing a high protein concentration from the E. coli cytoplasmic fraction (CPF).
