The adhesion rate of the HL-7702 cells on both Pzein and Fzein was higher than that on collagen film. Cell viabilities were higher on both Pzein and Fzein than on films of PLA, PHB, PHBV, and collagen from fish skin. Zein can be degraded by both trypsin and collagenase, and the degradation product can enhance cell viability within a certain range of concentrations.
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