Integrating Enzymes with Supramolecular Polymers for Recyclable Photobiocatalytic Catalysis

Abstract

Chemical modifications of enzymes excel in the realm of enzyme engineering due to its directness, robustness, and efficiency; however, challenges persist in devising versatile and effective strategies. In this study, we introduce a supramolecular modification methodology that amalgamates a supramolecular polymer with Candida antarctica lipase B (CalB) to create supramolecular enzymes (SupEnzyme). This approach features the straightforward preparation of a supramolecular amphiphilic polymer (β‐CD@SMA), which was subsequently conjugated to the enzyme, resulting in a SupEnzyme capable of self‐assembly into supramolecular nanoparticles. The resulting SupEnzyme nanoparticles can form micron‐scale supramolecular aggregates via supramolecular and electrostatic interactions with guest entities, thus enhancing catalyst recycling. Remarkably, these aggregates maintain 80% activity after seven cycles, outperforming Novozym 435. Additionally, they can effectively initiate photobiocatalytic cascade reactions using guest photocatalysts. As a consequence, our SupEnzyme methodology exhibits noteworthy adaptability in enzyme modification, presenting a versatile platform for various polymer, enzyme, and biocompatible catalyst pairings, with potential applications in the fields of chemistry and biology.

Optimization of Interfacial Properties Improved the Stability and Activity of the Catalase Enzyme Immobilized on Plastic Nanobeads

“…Nanoparticles are excellent candidates as support matrices, as they provide high a surface area, efficient enzyme loading, and improved catalytic activity. − Moreover, the unique physicochemical properties of nanoparticles, such as size, shape, and surface chemistry, can be tailored to optimize the immobilization process and enhance the stability of immobilized enzymes. For instance, several studies have investigated the immobilization of CAT on various types of nanoparticles and their composites.…”