高等学校化学研究 ›› 2023, Vol. 39 ›› Issue (6): 992-997.doi: 10.1007/s40242-023-3026-0
QIAO Juan1,2, ZHANG Xinya1,3, CHENG Cheng1,4, and QI Li1,2
QIAO Juan1,2, ZHANG Xinya1,3, CHENG Cheng1,4, and QI Li1,2
摘要: Immobilization of enzymes onto porous membranes has attracted considerable attention in recent years. However, enhancing the enzymolysis efficiency of the resulting enzyme reactors by varying the environmental conditions poses a great challenge. In this work, poly(styrene-maleic anhydride-N,N-dimethylacrylamide) was prepared and utilized to construct a thermo-sensitive porous polymer membrane-based enzyme reactor (TS-PPMER) after cellulase was immobilized onto the support by covalent bonding. The catalytic activity of the nano-reactor was evaluated by measuring the yield of the product, glucose, at different temperatures with carboxymethylcellulose as the substrate. Interestingly, the polymer chains coiled and formed numerous nano-pores at a high temperature, which induced the confine effect and greatly boosted the enzymolysis efficiency of TS-PPMER. Furthermore, the proposed TS-PPMER was applied in the hydrolysis of green plant leaves in Epipremnum aureum. This work shows great potential in obtaining biological resources by an environmentally friendly approach using smart polymer-based nano-reactors.