揭示高度共轭的 3,4,9,10-苝四甲酸二酐的葡萄糖氧化酶样和过氧化氢酶样活性，以促进生物燃料电池,Advanced Functional Materials

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揭示高度共轭的 3,4,9,10-苝四甲酸二酐的葡萄糖氧化酶样和过氧化氢酶样活性，以促进生物燃料电池
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-03-30 , DOI: 10.1002/adfm.202400617
Chengcheng Gu ₁ , Lei Zhang ₁ , Ting Hou ₁ , Dangqiang Zhu ₁ , Feng Li ₁ , Panpan Gai ₁

Affiliation

碳基纳米酶由于其优越的生物安全性、对极端条件的耐受性增强以及易于化学修饰而受到广泛关注。然而，由于材料多样性有限和分子结构未经证实，碳基纳米酶面临酶活性相对较低和催化机制不清楚等挑战。开发具有明确结构和可控性能的材料对于促进纳米酶的快速进展至关重要。其中，3,4,9,10-苝四甲酸二酐（PD）同时表现出葡萄糖氧化酶（GOx）样和过氧化氢酶（CAT）样活性，这可能是由于PD具有高度共轭结构的特征和高电子迁移率。此外，通过对其形态和大小的表征，证明酶活性与PD聚集程度相关。基于PD优异的类GOx和类CAT活性，构建了用于生物燃料电池（BFC）的自级联催化系统。值得一提的是，这样的BFC在工作30天后仍然保持较高的稳定性。因此，本研究扩展了类酶系统，发现具有高度共轭结构和高电子迁移率的纳米材料可以模拟酶。此外，利用多酶活性构建自级联系统，可以有效提高BFC的性能。

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Unveiling the Glucose Oxidase‐Like and Catalase‐Like Activities of Highly Conjugated 3,4,9,10‐Perylenetetracarboxylic Dianhydride for Boosting Biofuel Cells

Carbon‐based nanozymes have received considerable attention due to their superior biosafety, enhanced tolerance to extreme conditions, and ease of chemical modification. However, due to limited material diversity and unconfirmed molecular structure, carbon‐based nanozymes face challenges such as relatively low enzyme activity and unclear catalytic mechanisms. The development of materials with well‐defined structures and controllable properties is crucial for promoting the rapid progress of nanozymes. Herein, 3,4,9,10‐perylenetetracarboxylic dianhydride (PD) exhibits both glucose oxidase (GOx)‐like and catalase (CAT)‐like activities, which may be due to the fact that PD possesses the features of highly conjugated structure and high electron mobility. In addition, it is demonstrated that the enzymatic activity is related to the degree of PD aggregation via the characterization of its morphology and size. Based on the excellent GOx‐like and CAT‐like activities of PD, a self‐cascade catalytic system is constructed for application in biofuel cells (BFCs). It is worth mentioning that such BFC still maintains high stability after working for 30 days. Therefore, this study expands the enzyme‐like systems and discovers that nanomaterials with highly conjugated structures and high electron mobility can mimic enzymes. Additionally, the multi‐enzyme activities are utilized to construct self‐cascade systems, which can effectively improve the performance of BFCs.

更新日期：2024-03-30

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