Improving laccase activity and stability by HKUST-1 with cofactor via one-pot encapsulation and its application for degradation of bisphenol A

Zhang, Rongzheng; Wang, Lei; Han, Juan; Wu, Jiacong; Li, Chunmei; Ni, Liang; Wang, Yun

doi:10.1016/j.jhazmat.2019.121130

Cited by 125 publications

(63 citation statements)

References 35 publications

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“…The harvesting of fungal biomass for edible and medicinal purposes represents a new area of high-profit secondary benefits [63,64] that should be explored as an avenue to amend the functionality of microbial fuel cells. Temperature and pH impact laccase activity [65][66][67][68] and fungal biomass production [35][36][37]. Once a fungal byproduct is decided upon, variable pH and temperature studies should be carried out to optimize the production of electricity and biomass for the intended application.…”

Section: Discussionmentioning

confidence: 99%

A Hybrid Microbial–Enzymatic Fuel Cell Cathode Overcomes Enzyme Inactivation Limits in Biological Fuel Cells

2021

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The construction of optimized biological fuel cells requires a cathode which combines the longevity of a microbial catalyst with the current density of an enzymatic catalyst. Laccase-secreting fungi were grown directly on the cathode of a biological fuel cell to facilitate the exchange of inactive enzymes with active enzymes, with the goal of extending the lifetime of laccase cathodes. Directly incorporating the laccase-producing fungus at the cathode extends the operational lifetime of laccase cathodes while eliminating the need for frequent replenishment of the electrolyte. The hybrid microbial–enzymatic cathode addresses the issue of enzyme inactivation by using the natural ability of fungi to exchange inactive laccases at the cathode with active laccases. Finally, enzyme adsorption was increased through the use of a functionally graded coating containing an optimized ratio of titanium dioxide nanoparticles and single-walled carbon nanotubes. The hybrid microbial–enzymatic fuel cell combines the higher current density of enzymatic fuel cells with the longevity of microbial fuel cells, and demonstrates the feasibility of a self-regenerating fuel cell in which inactive laccases are continuously exchanged with active laccases.

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Section: Discussionmentioning

confidence: 99%

A Hybrid Microbial–Enzymatic Fuel Cell Cathode Overcomes Enzyme Inactivation Limits in Biological Fuel Cells

2021

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“…[79] Similarly, acid-resistant MOFs HKUST-1 was also demonstrated by Zhang et al to protect laccase from acidic conditions (pH 3). [80] However, for most acid-resistant MOFs, such as Zn-MOF-74 [81] and UiO-66-NH 2 , [82] their synthetic conditions are too harsh to retain the enzyme activity, usually far-from-biological levels, which involves extreme pH, high temperature and organic solvents. To solve this problem, a repaid ball milling process that minimizes the use of strong acids and organic solvents was recently developed by Chou and co-workers ((Figure 4b, i).…”

Section: Methods To Improve Framework Stabilitymentioning

confidence: 99%

Biocatalytic Metal–Organic Frameworks: Prospects Beyond Bioprotective Porous Matrices

Liang

2020

Adv Funct Materials

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Biocatalytic metal-organic framework (MOF) composites, synthesized by interfacing MOFs with biocatalytic components, possess the unprecedented synergetic properties that is hard to achieve by the conventional strategies, represents one of the next-generation composite materials for diverse biotechnological applications. Until now , research on the applications of biocatalytic MOFs is still in its preliminary stage, with a wide variety of studies being focusing on the bioprotection role of MOFs. However, their diversity of building units, molecular-scale tunability, modular synthetic routes, and more detailed understanding of the heterogeneous MOF-biointerface could even lead to completely new applications and potentials beyond our current imagination. The most recent rapid advanced progress in biocatalytic MOFs present ground-breaking applications in smart and tunable biocatalysis, precision nanomedicine, vaccine and gene delivery, biosensing and nano-biohybrids. Herein, the general and advanced synthesis strategies for improving the materials properties of biocatalytic MOFs, from tuning biocatalytic activity to framework stability to synergistic properties with other materials, are summarized. Then, the latest state-of-the-art applications of the biocatalytic MOF systems and recent advanced developments that are shaping this emerging field are surveyed. Finally, to define promising research directions, a critical evaluation and future prospects for the potential applications of biocatalytic MOFs are provided.

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“…2c). The rst weight loss was due to evaporation of adsorptive and bound water and enzyme decomposition (Zhang et al 2020c). The second weight loss was the collapse of the MOF skeleton, which was consistent with the trend of MIL-88B (Fe).…”

Section: Recycling Experimentsmentioning

confidence: 99%

Degradation of Bisphenol a Using Horseradish Peroxidase Immobilized on Fe-based MOFs

Cai

Cheng

et al. 2021

Preprint

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In this study, we synthesized a water-stable Fe-based metal-organic framework, MIL-88B (Fe) by a solvothermal method, and for the first time, MIL-88B (Fe)/HRP composite was prepared for the degradation of bisphenol A (BPA) by immobilizing horseradish peroxidase on MIL-88B (Fe) using covalent fixation method. The material was characterized via XRD, FTIR, TG, and SEM methods. The results showed that the composite could remove bisphenol A quickly and efficiently by adding the hydrophilic agent polyethylene glycol, with the removal rate of BPA up to 99.2% within 1 hour. In addition, the initial concentration of bisphenol A, the dosage of the immobilized enzyme and the amount of H2O2 added had a great influence on the degradation efficiency. It was found that immobilized HRP could be reused, and its storage stability and thermal stability were better than free HRP. These show that immobilized enzymes have a broad application prospect in waste-water treatment.

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Improving laccase activity and stability by HKUST-1 with cofactor via one-pot encapsulation and its application for degradation of bisphenol A

Cited by 125 publications

References 35 publications

A Hybrid Microbial–Enzymatic Fuel Cell Cathode Overcomes Enzyme Inactivation Limits in Biological Fuel Cells

A Hybrid Microbial–Enzymatic Fuel Cell Cathode Overcomes Enzyme Inactivation Limits in Biological Fuel Cells

Biocatalytic Metal–Organic Frameworks: Prospects Beyond Bioprotective Porous Matrices

Degradation of Bisphenol a Using Horseradish Peroxidase Immobilized on Fe-based MOFs

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