Poly(hydroxyethyl methacrylate) inverse colloidal crystal membrane for efficient adsorption of lysozyme

In this paper, we provide the adsorption behavior of lysozyme on the inverse colloidal crystal (ICC) membrane under different parameters (such as temperature, pH value, adsorption time). Besides, this also studied lysozyme adsorption behavior by changing the Hydroxyethyl methacrylate (HEMA) ratio of the ICC membrane. Furthermore, we found that ICC membranes containing Hydroxyethyl methacrylate have significantly improved lysozyme adsorption than ICC membranes without Hydroxyethyl methacrylate. With the increasing lysozyme concentration, the ICC membrane containing 50% HEMA showed an excellent selective adsorption effect. At the same time, we describe the adsorption mechanism of lysozyme on the ICC membrane containing HEMA. Finally, after ten adsorption-desorption cycles on the ICC membrane, the membranes adsorption effect on lysozyme has not significantly decreased.