The enzymatic degradation of amorphous poly (ethylene terephthalate)(PET) films by a PET-degrading enzyme was analyzed using SAXS, WAXD, SEM, X-CT, and weight-loss measurements. FAST-PETase induced the emergence of hierarchical boring structures ranging from 10⁻⁵ m to 10⁻⁸ m on PET, revealing that enzymatic degradation proceeds through interfacial interactions within the evolving porous surface layer. This study contributes essential knowledge toward the sustainable use of plastics, responding to growing global concerns over microplastic pollution and the scarcity of fossil resources.
- Daisuke Tadokoro
- Tomoya Imai
