The Optimal adsorption condition was
0.02 M phosphate buffer (pH 5.5) with 1.0 mol/L NaCl, and the adsorption isotherm showed the maximum
adsorption capacity as 22.76 mg/g polymer, the dissociation constant as 0.085 mg/ml, and the
label-free detection data analyzed by ForteBio’s Octet also verified the results.