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Xu L, Liu H, Wang X, Li Q, Xu S, Sun C, Suo H. Encapsulation of Immobilized β-Glucosidase with Calcium Metal-Organic Frameworks for Enhanced Stability in Hydrolysis of Cellobiose. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39159299 DOI: 10.1021/acs.langmuir.4c02436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/21/2024]
Abstract
β-Glucosidase (β-G) holds promising applications in various fields, such as biomass energy, food, pharmaceuticals, and environmental protection, yet its industrial application is still limited by issues of stability and recycling. Herein, we first immobilized β-G onto the surface of magnetic chitosan nanoparticles (MCS/β-G) through adsorption methods. Subsequently, utilizing the metal-organic framework (MOF), CaBDC, which possesses good stability under acidic conditions, we encapsulated MCS/β-G. The resulting biocatalyst (MCS/β-G@CaBDC) exhibited excellent activity and recyclability. MCS/β-G@CaBDC can convert 91.5% of cellobiose to glucose in 60 min and maintained 81.9% activity after 10 cycles. The apparent Km value of MCS/β-G@CaBDC was 0.148 mM, lower than free β-G (0.166 mM) and MCS/β-G (0.173 mM). The CaBDC layer increased the mass transfer resistance of the reaction but also triggered structural rearrangement of β-G during the encapsulation process. This resulted in the β-sheet content rising to 68.4%, which, in turn, contributed to enhancing the rigidity of β-G. Moreover, the saturated magnetic strength of this biocatalyst could reach 37.3 emu/g, facilitating its magnetic recovery. The biocatalyst prepared in this study exhibits promising application prospects, and the immobilization method can provide valuable insights into the field of enzyme immobilization.
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Affiliation(s)
- Lili Xu
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Huanruo Liu
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Xiaohan Wang
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Qi Li
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Suli Xu
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Caizheng Sun
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
| | - Hongbo Suo
- State Key Laboratory for Macromolecule Drugs and Large-Scale Manufacturing, School of Pharmaceutical Sciences, Liaocheng University, Liaocheng, Shandong 252059, People's Republic of China
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Hu S, Kong H, Sun Y, Wu R, Xu J, Guo M. Construction of Metal-Organic Framework-Based Heterogeneous Pepsin and Its Degradation Performance and Mechanism for Phthalic Acid Esters. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39241-39250. [PMID: 39024494 DOI: 10.1021/acsami.4c04799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2024]
Abstract
Biological enzyme-driven degradation of environmental pollutants has attracted widespread attention because it is ecofriendly and highly efficient. Immobilized enzyme technology has emerged as a promising technique in enzymology that addresses the limitations associated with free enzymes. Traditional solid-loaded enzyme substrates are often affected by blockages and restricted substrate accessibility. In this study, we synthesized an efficient heterogeneous pepsin catalyst, named PEP@M-MIL100(Fe), by covalently combining carboxylated ferrite structural expanded metal-organic frameworks with pepsin. This catalyst demonstrated excellent environmental adaptability and remarkable catalytic degradation capabilities. Notably, it rapidly degraded the persistent microplastic pollutant diisononyl phthalate (DINP) within just 150 min, with a removal efficiency of up to 95.88%. Impressively, even after 10 consecutive uses, the catalyst maintained its high performance. We proposed an innovative steady-state heterogeneous enzyme-catalyzed degradation mechanism, i.e., diffusion (D)-absorption (A)-binding (B)-reaction (R)-degradation (D)-link mechanism, which emphasizes the influence of substrate diffusion rates in this process. This work presents the first successful application of pepsin to DINP degradation and offers a sustainable and effective approach for addressing contemporary pollution challenges.
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Affiliation(s)
- Shengnan Hu
- College of Chemistry and Materials Engineering, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
| | - Hanzhu Kong
- College of Chemistry and Materials Engineering, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
| | - Yuting Sun
- College of Environmental and Resource Sciences, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
| | - Ronghui Wu
- College of Chemistry and Materials Engineering, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
| | - Jing Xu
- College of Optical, Mechanical and Electrical Engineering, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
| | - Ming Guo
- College of Chemistry and Materials Engineering, Zhejiang Agriculture & Forestry University, Hangzhou, Zhejiang 311300, China
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Wang H, Kou X, Gao R, Huang S, Chen G, Ouyang G. Enzyme-Immobilized Porous Crystals for Environmental Applications. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:11869-11886. [PMID: 38940189 DOI: 10.1021/acs.est.4c01273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
Developing efficient technologies to eliminate or degrade contaminants is paramount for environmental protection. Biocatalytic decontamination offers distinct advantages in terms of selectivity and efficiency; however, it still remains challenging when applied in complex environmental matrices. The main challenge originates from the instability and difficult-to-separate attributes of fragile enzymes, which also results in issues of compromised activity, poor reusability, low cost-effectiveness, etc. One viable solution to harness biocatalysis in complex environments is known as enzyme immobilization, where a flexible enzyme is tightly fixed in a solid carrier. In the case where a reticular crystal is utilized as the support, it is feasible to engineer next-generation biohybrid catalysts functional in complicated environmental media. This can be interpreted by three aspects: (1) the highly crystalline skeleton can shield the immobilized enzyme against external stressors. (2) The porous network ensures the high accessibility of the interior enzyme for catalytic decontamination. And (3) the adjustable and unambiguous structure of the reticular framework favors in-depth understanding of the interfacial interaction between the framework and enzyme, which can in turn guide us in designing highly active biocomposites. This Review aims to introduce this emerging biocatalysis technology for environmental decontamination involving pollutant degradation and greenhouse gas (carbon dioxide) conversion, with emphasis on the enzyme immobilization protocols and diverse catalysis principles including single enzyme catalysis, catalysis involving enzyme cascades, and photoenzyme-coupled catalysis. Additionally, the remaining challenges and forward-looking directions in this field are discussed. We believe that this Review may offer a useful biocatalytic technology to contribute to environmental decontamination in a green and sustainable manner and will inspire more researchers at the intersection of the environment science, biochemistry, and materials science communities to co-solve environmental problems.
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Affiliation(s)
- Hao Wang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Xiaoxue Kou
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Rui Gao
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
| | - Siming Huang
- Guangzhou Municipal and Guangzhou Province Key Laboratory of Molecular Target & Clinical Phamacology, the NMPA and State Key Laboratory of Respiratory Disease, School of Phamaceutical Sciences and the Fifth Affiliated Hospital, Guangzhou Medical University, Guangzhou 511436, People's Republic of China
| | - Guosheng Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
- Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
| | - Gangfeng Ouyang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, People's Republic of China
- Guangdong Basic Research Center of Excellence for Functional Molecular Engineering, Sun Yat-sen University, Guangzhou 510006, People's Republic of China
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Cai X, Huang Y, Zhu C. Immobilized Multi-Enzyme/Nanozyme Biomimetic Cascade Catalysis for Biosensing Applications. Adv Healthc Mater 2024:e2401834. [PMID: 38889805 DOI: 10.1002/adhm.202401834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/17/2024] [Indexed: 06/20/2024]
Abstract
Multiple enzyme-induced cascade catalysis has an indispensable role in the process of complex life activities, and is widely used to construct robust biosensors for analyzing various targets. The immobilized multi-enzyme cascade catalysis system is a novel biomimetic catalysis strategy that immobilizes various enzymes with different functions in stable carriers to simulate the synergistic catalysis of multiple enzymes in biological systems, which enables high stability of enzymes and efficiency enzymatic cascade catalysis. Nanozymes, a type of nanomaterial with intrinsic enzyme-like characteristics and excellent stabilities, are also widely applied instead of enzymes to construct immobilized cascade systems, achieving better catalytic performance and reaction stability. Due to good stability, reusability, and remarkably high efficiency, the immobilized multi-enzyme/nanozyme biomimetic cascade catalysis systems show distinct advantages in promoting signal transduction and amplification, thereby attracting vast research interest in biosensing applications. This review focuses on the research progress of the immobilized multi-enzyme/nanozyme biomimetic cascade catalysis systems in recent years. The construction approaches, factors affecting the efficiency, and applications for sensitive biosensing are discussed in detail. Further, their challenges and outlooks for future study are also provided.
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Affiliation(s)
- Xiaoli Cai
- Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, P.R. China
| | - Yuteng Huang
- Academy of Nutrition and Health, Hubei Province Key Laboratory of Occupational Hazard Identification and Control, School of Public Health, Wuhan University of Science and Technology, Wuhan, 430065, P.R. China
| | - Chengzhou Zhu
- State Key Laboratory of Green Pesticide, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan, 430079, P.R. China
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Alvarado-Ramírez L, Machorro-García G, López-Legarrea A, Trejo-Ayala D, Rostro-Alanis MDJ, Sánchez-Sánchez M, Blanco RM, Rodríguez-Rodríguez J, Parra-Saldívar R. Metal-organic frameworks for enzyme immobilization and nanozymes: A laccase-focused review. Biotechnol Adv 2024; 70:108299. [PMID: 38072099 DOI: 10.1016/j.biotechadv.2023.108299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 11/29/2023] [Accepted: 12/05/2023] [Indexed: 12/18/2023]
Abstract
Laccases are natural catalysts with remarkable catalytic activity. However, their application is limited by their lack of stability. Metal-organic frameworks (MOFs) have emerged as a promising alternative for enzyme immobilization. Enzymes can be immobilized in MOFs via two approaches: postsynthetic immobilization and in situ immobilization. In postsynthetic immobilization, an enzyme is embedded after MOF formation by covalent interactions or adsorption. In contrast, in in situ immobilization, a MOF is formed in the presence of an enzyme. Additionally, MOFs have exhibited intrinsic enzyme-like activity. These materials, known as nanozymes when they have the ability to replace enzymes in certain catalytic processes, have multiple key advantages, such as low cost, easy preparation, and large surface areas. This review presents a general overview of the most recent advances in both enzyme@MOF biocatalysts and MOF-based nanozymes in different applications, with a focus on laccase, which is one of the most widely investigated enzymes with excellent industrial potential.
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Affiliation(s)
| | | | - Andrea López-Legarrea
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, Mexico
| | - Dulce Trejo-Ayala
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, Mexico
| | | | - Manuel Sánchez-Sánchez
- Instituto de Catálisis y Petroleoquímica (ICP), Consejo Superior de Investigaciones Científicas (CSIC). C/ Marie Curie, 2, Madrid 28049, Spain.
| | - Rosa M Blanco
- Instituto de Catálisis y Petroleoquímica (ICP), Consejo Superior de Investigaciones Científicas (CSIC). C/ Marie Curie, 2, Madrid 28049, Spain.
| | | | - Roberto Parra-Saldívar
- School of Engineering and Sciences, Tecnologico de Monterrey, Monterrey 64849, Mexico; Institute of Advanced Materials for Sustainable Manufacturing, Tecnologico de Monterrey, Monterrey 64849, Mexico.
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Xu R, Zhang X, Zelekew OA, Schott E, Wu YN. Improved stability and activity of laccase through de novo and post-synthesis immobilization on a hierarchically porous metal-organic framework (ZIF-8). RSC Adv 2023; 13:17194-17201. [PMID: 37304779 PMCID: PMC10248541 DOI: 10.1039/d3ra01571h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 05/26/2023] [Indexed: 06/13/2023] Open
Abstract
Porous materials such as metal-organic frameworks (MOFs) are considered to be suitable materials for immobilizing enzymes to improve their stability. However, conventional MOFs reduce the enzymes' catalytic activity due to difficulties with mass transfer and diffusing reactants after their micropores are occupied by enzyme molecules. To address these issues, a novel hierarchically structured zeolitic imidazolate framework-8 (HZIF-8) was prepared to study the effects of different laccase immobilization approaches such as the post-synthesis (LAC@HZIF-8-P) and de novo (LAC@HZIF-8-D) immobilization of catalytic activities for removing 2,4-dichlorophenol (2,4-DCP). The results showed higher catalytic activity for the laccase-immobilized LAC@HZIF-8 prepared using different methods than for the LAC@MZIF-8 sample, with 80% of 2,4-DCP removed under optimal conditions. These results could be attributable to the multistage structure of HZIF-8. The LAC@HZIF-8-D sample was stable and superior to LAC@HZIF-8-P, maintaining a 2,4-DCP removal efficiency of 80% after three recycles and demonstrating superior laccase thermostability and storage stability. Moreover, after loading with copper nanoparticles, the LAC@HZIF-8-D approach exhibited a 2,4-DCP removal efficiency of 95%, a promising finding for its potential use in environmental purification.
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Affiliation(s)
- Ran Xu
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University 1239 Siping Rd. Shanghai 200092 China
- Shanghai Institute of Pollution Control and Ecological Security 1239 Siping Rd. Shanghai 200092 China
| | - Xujie Zhang
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University 1239 Siping Rd. Shanghai 200092 China
- Shanghai Institute of Pollution Control and Ecological Security 1239 Siping Rd. Shanghai 200092 China
| | - Osman Ahmend Zelekew
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University 1239 Siping Rd. Shanghai 200092 China
- Shanghai Institute of Pollution Control and Ecological Security 1239 Siping Rd. Shanghai 200092 China
- Department of Materials Science and Engineering, Adama Science and Technology University Adama Ethiopia
| | - Eduardo Schott
- Department of Inorganic Chemistry of the Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile Vicuña Mackenna 4860, Macul Santiago Chile
| | - Yi-Nan Wu
- College of Environmental Science and Engineering, State Key Laboratory of Pollution Control and Resource Reuse, Tongji University 1239 Siping Rd. Shanghai 200092 China
- Shanghai Institute of Pollution Control and Ecological Security 1239 Siping Rd. Shanghai 200092 China
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Tocco D, Chelazzi D, Mastrangelo R, Casini A, Salis A, Fratini E, Baglioni P. Conformational changes and location of BSA upon immobilization on zeolitic imidazolate frameworks. J Colloid Interface Sci 2023; 641:685-694. [PMID: 36965340 DOI: 10.1016/j.jcis.2023.03.107] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/15/2023] [Accepted: 03/17/2023] [Indexed: 03/27/2023]
Abstract
The location and the conformational changes of proteins/enzymes immobilized within Metal Organic Frameworks (MOFs) are still poorly investigated and understood. Bovine serum albumin (BSA), used as a model protein, was immobilized within two different zeolitic imidazolate frameworks (ZIF-zni and ZIF-8). Pristine ZIFs and BSA@ZIFs were characterized by X-ray diffraction, small-angle X-ray scattering, scanning electron microscopy, confocal laser scanning microscopy, thermogravimetric analysis, micro-FTIR and confocal Raman spectroscopy to characterize MOFs structure and the protein location in the materials. Moreover, the secondary structure and conformation changes of BSA after immobilization on both ZIFs were studied with FTIR. BSA is located both in the inner and on the outer surface of MOFs, forming domains that span from the micro- to the nanoscale. BSA crystallinity (β-sheets + α-helices) increases up to 25 % and 40 % due to immobilization within ZIF-zni and ZIF-8, respectively, with a consequent reduction of β-turns.
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Affiliation(s)
- Davide Tocco
- Department of Chemical and Geological Sciences, University of Cagliari & CSGI, Cittadella Universitaria, S.S. 554 bivio Sestu, 09042 Monserrato, CA, Italy; Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy
| | - David Chelazzi
- Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy
| | - Rosangela Mastrangelo
- Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy
| | - Andrea Casini
- Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy
| | - Andrea Salis
- Department of Chemical and Geological Sciences, University of Cagliari & CSGI, Cittadella Universitaria, S.S. 554 bivio Sestu, 09042 Monserrato, CA, Italy.
| | - Emiliano Fratini
- Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy.
| | - Piero Baglioni
- Department of Chemistry "Ugo Schiff", University of Florence & CSGI, via della Lastruccia 3, Sesto Fiorentino (FI) I-50019, Italy
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Saddique Z, Imran M, Javaid A, Rizvi NB, Akhtar MN, Iqbal HMN, Bilal M. Enzyme-Linked Metal Organic Frameworks for Biocatalytic Degradation of Antibiotics. Catal Letters 2023. [DOI: 10.1007/s10562-022-04261-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
AbstractMetal organic frameworks (MOFs) are multi-dimensional network of crystalline material held together by bonding of metal atoms and organic ligands. Owing to unique structural, chemical, and physical properties, MOFs has been used for enzyme immobilization to be employed in different catalytic process, including catalytic degradation of antibiotics. Immobilization process other than providing large surface provides enzyme with enhanced stability, catalytic activity, reusability, and selectivity. There are various approaches of enzyme immobilization over MOFs including physical adsorption, chemical bonding, diffusion and in situ encapsulation. In situ encapsulation is one the best approach that provides extra stability from unfolding and denaturation in harsh industrial conditions. Presence of antibiotic in environment is highly damaging for human in particular and ecosystem in general. Different methods such as ozonation, oxidation, chlorination and catalysis are available for degradation or removal of antibiotics from environment, however these are associated with several issues. Contrary to these, enzyme immobilized MOFs are novel system to be used in catalytic degradation of antibiotics. Enzyme@MOFs are more stable, reusable and more efficient owing to additional support of MOFs to natural enzymes in well-established process of photocatalysis for degradation of antibiotics aimed at environmental remediation. Prime focus of this review is to present catalytic degradation of antibiotics by enzyme@MOFs while outlining their synthetics approaches, characterization, and mechanism of degradation. Furthermore, this review highlights the significance of enzyme@MOFs system for antibiotics degradation in particular and environmental remediation in general. Current challenges and future perspective of research in this field are also outlined along with concluding comments.
Graphical Abstract
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Yang XG, Zhang JR, Tian XK, Qin JH, Zhang XY, Ma LF. Enhanced Activity of Enzyme Immobilized on Hydrophobic ZIF-8 Modified by Ni 2+ Ions. Angew Chem Int Ed Engl 2023; 62:e202216699. [PMID: 36536412 DOI: 10.1002/anie.202216699] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 12/15/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022]
Abstract
The development of efficient enzyme immobilization to promote their recyclability and activity is highly desirable. Zeolitic imidazolate framework-8 (ZIF-8) has been proved to be an effective platform for enzyme immobilization due to its easy preparation and biocompatibility. However, the intrinsic hydrophobic characteristic hinders its further development in this filed. Herein, a facile synthesis approach was developed to immobilize pepsin (PEP) on the ZIF-8 carrier by using Ni2+ ions as anchor (ZIF-8@PEP-Ni). By contrast, the direct coating of PEP on the surface of ZIF-8 (ZIF-8@PEP) generated significant conformational changes. Electrochemical oxygen evolution reaction (OER) was employed to study the catalytic activity of immobilized PEP. The ZIF-8@PEP-Ni composite attains remarkable OER performance with an ultralow overpotential of only 127 mV at 10 mA cm-2 , which is much lower than the 690 and 919 mV overpotential values of ZIF-8@PEP and PEP, respectively.
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Affiliation(s)
- Xiao-Gang Yang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
| | - Ji-Rui Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
| | - Xu-Ke Tian
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
| | - Jian-Hua Qin
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
| | - Xin-Ya Zhang
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
| | - Lu-Fang Ma
- College of Chemistry and Chemical Engineering, Luoyang Normal University, Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang, 471934, P. R. China
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Isaeva VI, Timofeeva MN, Lukoyanov IA, Gerasimov EY, Panchenko VN, Chernyshev VV, Glukhov LM, Kustov LM. Novel MOF catalysts based on calix[4]arene for the synthesis of propylene carbonate from propylene oxide and CO2. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2022.102262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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11
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FitzGerald LI, Olorunyomi JF, Singh R, Doherty CM. Towards Solving the PFAS Problem: The Potential Role of Metal-Organic Frameworks. CHEMSUSCHEM 2022; 15:e202201136. [PMID: 35843909 PMCID: PMC9804497 DOI: 10.1002/cssc.202201136] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 07/15/2022] [Indexed: 06/15/2023]
Abstract
Per- and polyfluoroalkyl substances (PFAS) are a group of recalcitrant molecules that have been used since the 1940s in a variety of applications. They are now linked to a host of negative health outcomes and are extremely resistant to degradation under environmental conditions. Currently, membrane technologies or adsorbents are used to remediate contaminated water. These techniques are either inefficient at capturing smaller PFAS molecules, have high energy demands, or result in concentrated waste that must be incinerated at high temperatures. This Review focuses on what role metal-organic frameworks (MOFs) may play in addressing the PFAS problem. Specifically, how the unique properties of MOFs such as their well-defined pore sizes, ultra-high internal surface area, and tunable surface chemistry may be a sustainable solution for PFAS contamination.
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Affiliation(s)
| | | | - Ruhani Singh
- CSIRO ManufacturingPrivate Bag 10Clayton South3169VictoriaAustralia
| | - Cara M. Doherty
- CSIRO ManufacturingPrivate Bag 10Clayton South3169VictoriaAustralia
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Zou S, Wang B, Wang Q, Liu G, Song J, Zhang F, Li J, Wang F, He Q, Zhu Y, Zhang L. Dual-Modal Nanoscavenger for Detoxification of Organophosphorus Compounds. ACS APPLIED MATERIALS & INTERFACES 2022; 14:42454-42467. [PMID: 36089739 DOI: 10.1021/acsami.2c11737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Organophosphorus compounds (OPs) pose great military and civilian hazards. However, therapeutic and prophylactic antidotes against OP poisoning remain challenging. In this study, we first developed a novel nanoscavenger (rOPH/ZIF-8@E-Lipo) against methyl paraoxon (MP) poisoning using enzyme immobilization and erythrocyte-liposome hybrid membrane camouflage techniques. Then, we evaluated the physicochemical characterization, stability, and biocompatibility of the nanoscavengers. Afterward, we examined acetylcholinesterase (AChE) activity, cell viability, and intracellular reactive oxygen species (ROS) to indicate the protective effects of the nanoscavengers in vitro. Following the pharmacokinetic and biodistribution studies, we further evaluated the therapeutic and prophylactic detoxification efficacy of the nanoscavengers against MP in various poisoning settings. Finally, we explored the penetration capacity of the nanoscavengers across the blood-brain barrier (BBB). The present study validated the successful construction of a novel nanoscavenger with excellent stability and biocompatibility. In vitro, the resulting nanoscavenger exhibited a significant protection against MP-induced AChE inactivation, oxidative stress, and cytotoxicity. In vivo, apart from the positive therapeutic effects, the nanoscavengers also exerted significant prophylactic detoxification efficacy against single lethal MP exposure, repeated lethal MP challenges, and sublethal MP poisoning. These excellent detoxification effects of the nanoscavengers against OPs may originate from a dual-mode mechanism of inner recombinant organophosphorus hydrolase (rOPH) and outer erythrocyte membrane-anchored AChE. Finally, in vitro and in vivo studies jointly demonstrated that monosialoganglioside (GM1)-modified rOPH/ZIF-8@E-Lipo could penetrate the BBB with high efficiency. In conclusion, a stable and safe dual-modal nanoscavenger was developed with BBB penetration capability, providing a promising strategy for the treatment and prevention of OP poisoning.
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Affiliation(s)
- Shuaijun Zou
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Beilei Wang
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Qianqian Wang
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Guoyan Liu
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Juxingsi Song
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Fuhai Zhang
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Jie Li
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Fan Wang
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
| | - Qian He
- The Third Affiliated Hospital of Naval Medical University, Shanghai 200433, China
| | - Yuanjie Zhu
- Department of Marine Biological Injury and Dermatology, Naval Special Medical Center, Naval Medical University, Shanghai 200052, China
| | - Liming Zhang
- Department of Marine Biomedicine and Polar Medicine, Naval Special Medical Center, Naval Medical University, Shanghai 200433, China
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13
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Birhanlı E, Noma SAA, Boran F, Ulu A, Yeşilada Ö, Ateş B. Design of laccase-metal-organic framework hybrid constructs for biocatalytic removal of textile dyes. CHEMOSPHERE 2022; 292:133382. [PMID: 34954196 DOI: 10.1016/j.chemosphere.2021.133382] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/30/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
This study aims to present a simple and effective carrier matrix to immobilize laccase as opposed to complex and tedious immobilization processes and also to use it in the removal of textile dyes. For this purpose, Cobalt (Co) and Copper (Cu) based metal-organic frameworks (MOFs) were prepared and laccase was immobilized on two different MOFs via encapsulation. The characterization outcomes showed that laccase was well immobilized into MOF supports. Optimum pH and temperature were found for Lac/Co-MOF (pH 4.5 at 50 °C) and Lac/Cu-MOF (pH 5.0 at 50 °C). The Km (0.03 mM) and Vmax (97.4 μmol/min) values of Lac/Cu-MOF were lower than those of Lac/Co-MOF (Km = 0.13 mM, Vmax = 230.7 μmol/min). The immobilized laccases showed good reusability as well as improved resistance to temperature denaturation and high storage stability. For instance, the Lac/Co-MOF and Lac/Cu-MOF retained more than 58% activity after 4 weeks of storage at room temperature. Meanwhile, Lac/Co-MOF and Lac/Cu-MOF maintained 56.5% and 55.8% of their initial activity, respectively, after 12 reuse cycles. Moreover, thermal deactivation kinetic studies of immobilized laccases displayed lower k value, higher t1/2, and enhancement of thermodynamic parameters, which means better thermostability. Finally, the decolorization activities for the Lac/Co-MOF were 78% and 61% at the 5th cycle for Reactive Blue 171 and Reactive Blue 198, respectively. In conclusion, it can be inferred that the MOFs are more sustainable and beneficial support for laccase immobilization and they can be efficient for removing textile dyes from industrial wastes.
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Affiliation(s)
- Emre Birhanlı
- Biotechnology Research Laboratory, Department of Biology, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey
| | - Samir Abbas Ali Noma
- Biochemistry and Biomaterials Research Laboratory, Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey; Department of Chemistry, Faculty of Arts and Science, Bursa Uludag University, Bursa, Turkey
| | - Filiz Boran
- Biotechnology Research Laboratory, Department of Biology, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey
| | - Ahmet Ulu
- Biochemistry and Biomaterials Research Laboratory, Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey.
| | - Özfer Yeşilada
- Biotechnology Research Laboratory, Department of Biology, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey
| | - Burhan Ateş
- Biochemistry and Biomaterials Research Laboratory, Department of Chemistry, Faculty of Arts and Science, Inönü University, 44280, Malatya, Turkey.
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14
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Application of the in-situ biological detoxification polymer for the improvement of AFB1 detoxification. Lebensm Wiss Technol 2022. [DOI: 10.1016/j.lwt.2022.113239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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15
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Jiang S, Ren D, Wang Z, Zhang S, Zhang X, Chen W. Improved stability and promoted activity of laccase by One-Pot encapsulation with Cu (PABA) nanoarchitectonics and its application for removal of Azo dyes. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 234:113366. [PMID: 35272195 DOI: 10.1016/j.ecoenv.2022.113366] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 02/17/2022] [Accepted: 02/27/2022] [Indexed: 06/14/2023]
Abstract
Immobilization of laccase helps protect the laccase and realizes repeated use. However, excessive encapsulation protection will also limit the release of laccase activity. This work introduces an effective one-pot method encapsulating laccase in the porous material of metal organic framework (MOF) containing specific metal ions, which provided a new way to solve the problem of limited laccase activity. The immobilization process was mathematically modeled. The morphological and encapsulated properties of the prepared materials were confirmed by the characterization results of SEM, FTIR, XRD, TGA, XPS and CLSM. The results showed that laccase was successfully encapsulated, and the Cu (PABA) with Cu2+ as the central structure promoted the laccase activity, the activity of immobilized laccase increased by 1.7 times. The prepared laccase@Cu (PABA) (Lac@Cu (PABA)) showed enhanced stability to extreme pH, high temperature and storage time. More importantly, the Lac@Cu (PABA) exhibited superior reusability, maintaining 70% removal rate of Direct Red 31 (DR31) even after 10 cycles. The dye removal rate of immobilized laccase reached 92% in 6 h under optimal conditions. This research improved the stability of laccase while releasing the activity of laccase, which not only broadened the applicable environment of laccase, but also increased the rate of degradation, and provided a new idea for the clean and efficient treatment of water pollution in textile industry.
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Affiliation(s)
- Shan Jiang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Dajun Ren
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China.
| | - Zhaobo Wang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Shuqin Zhang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Xiaoqing Zhang
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
| | - Wangsheng Chen
- School of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan 430081, China; Hubei Key Laboratory for Efficient Utilization and Agglomeration of metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei 430081, China
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16
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Peng L, Tan W, Lu Y, Yao A, Zheng D, Li L, Xiao J, Li L, Li Q, Zhou S, Zhan G. Convenient Immobilization of α‐L‐Rhamnosidase on Cerium‐based Metal‐Organic Frameworks Nanoparticles for Enhanced Enzymatic Activity and Recyclability. ChemCatChem 2021. [DOI: 10.1002/cctc.202101489] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Lingling Peng
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Wansen Tan
- College of Food and Biological Engineering Jimei University Xiamen Fujian 361021 P. R. China
| | - Yuting Lu
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Ayan Yao
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Dayuan Zheng
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Le Li
- College of Food and Biological Engineering Jimei University Xiamen Fujian 361021 P. R. China
| | - Jingran Xiao
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Lijun Li
- College of Food and Biological Engineering Jimei University Xiamen Fujian 361021 P. R. China
- Key Laboratory of Food Microbiology and Enzyme Engineering Technology of Fujian Province Xiamen Fujian 361021 P. R. China
| | - Qingbiao Li
- College of Food and Biological Engineering Jimei University Xiamen Fujian 361021 P. R. China
| | - Shu‐feng Zhou
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
| | - Guowu Zhan
- College of Chemical Engineering Integrated Nanocatalysts Institute (INCI) Huaqiao University Xiamen Fujian 361021 P. R. China
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17
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Tocco D, Carucci C, Todde D, Shortall K, Otero F, Sanjust E, Magner E, Salis A. Enzyme immobilization on metal organic frameworks: Laccase from Aspergillus sp. is better adapted to ZIF-zni rather than Fe-BTC. Colloids Surf B Biointerfaces 2021; 208:112147. [PMID: 34634655 DOI: 10.1016/j.colsurfb.2021.112147] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/24/2021] [Accepted: 09/28/2021] [Indexed: 11/27/2022]
Abstract
Laccase from Aspergillus sp. (LC) was immobilized within Fe-BTC and ZIF-zni metal organic frameworks through a one-pot synthesis carried out under mild conditions (room temperature and aqueous solution). The Fe-BTC, ZIF-zni MOFs, and the LC@Fe-BTC, LC@ZIF-zni immobilized LC samples were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. The kinetic parameters (KM and Vmax) and the specific activity of the free and immobilized laccase were determined. Immobilized LCs resulted in a lower specific activity compared with that of the free LC (7.7 µmol min-1 mg-1). However, LC@ZIF-zni was almost 10 times more active than LC@Fe-BTC (1.32 µmol min-1 mg-1 vs 0.17 µmol min-1 mg-1) and only 5.8 times less active than free LC. The effect of enzyme loading showed that LC@Fe-BTC had an optimal loading of 45.2 mg g-1, at higher enzyme loadings the specific activity decreased. In contrast, the specific activity of LC@ZIF-zni increased linearly over the loading range investigated. The storage stability of LC@Fe-BTC was low with a significant decrease in activity after 5 days, while LC@ZIF retained up to 50% of its original activity after 30 days storage. The difference in activity and stability between LC@Fe-BTC and LC@ZIF-zni is likely due to release of Fe3+ and the low stability of Fe-BTC MOF. Together, these results indicate that ZIF-zni is a superior support for the immobilization of laccase.
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Affiliation(s)
- Davide Tocco
- Department of Chemical and Geological Sciences, University of Cagliari, and Centro NanoBiotecnologie Sardegna (CNBS), Cittadella Universitaria, SS 554 bivio Sestu, 09042, Monserrato (CA), Italy; Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; Unità Operativa University of Cagliari, Italy; Cittadella Universitaria, SS 554 bivio Sestu, 09042 Monserrato (CA), Italy
| | - Cristina Carucci
- Department of Chemical and Geological Sciences, University of Cagliari, and Centro NanoBiotecnologie Sardegna (CNBS), Cittadella Universitaria, SS 554 bivio Sestu, 09042, Monserrato (CA), Italy; Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; Unità Operativa University of Cagliari, Italy; Cittadella Universitaria, SS 554 bivio Sestu, 09042 Monserrato (CA), Italy.
| | - Debora Todde
- Department of Chemical and Geological Sciences, University of Cagliari, and Centro NanoBiotecnologie Sardegna (CNBS), Cittadella Universitaria, SS 554 bivio Sestu, 09042, Monserrato (CA), Italy
| | - Kim Shortall
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Fernando Otero
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Enrico Sanjust
- Department of Biomedical Sciences, University of Cagliari, Cittadella Universitaria, SS 554 bivio Sestu, 09042 Monserrato (CA), Italy; Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; Unità Operativa University of Cagliari, Italy; Cittadella Universitaria, SS 554 bivio Sestu, 09042 Monserrato (CA), Italy
| | - Edmond Magner
- Department of Chemical Sciences and Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland.
| | - Andrea Salis
- Department of Chemical and Geological Sciences, University of Cagliari, and Centro NanoBiotecnologie Sardegna (CNBS), Cittadella Universitaria, SS 554 bivio Sestu, 09042, Monserrato (CA), Italy; Consorzio Interuniversitario per lo Sviluppo dei Sistemi a Grande Interfase (CSGI), via della Lastruccia 3, 50019, Sesto Fiorentino (FI), Italy; Unità Operativa University of Cagliari, Italy; Cittadella Universitaria, SS 554 bivio Sestu, 09042 Monserrato (CA), Italy.
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18
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Preparation of ZIF@ADH/NAD-MSN/LDH Core Shell Nanocomposites for the Enhancement of Coenzyme Catalyzed Double Enzyme Cascade. NANOMATERIALS 2021; 11:nano11092171. [PMID: 34578486 PMCID: PMC8464746 DOI: 10.3390/nano11092171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/08/2021] [Accepted: 08/17/2021] [Indexed: 11/17/2022]
Abstract
The field of enzyme cascades in limited microscale or nanoscale environments has undergone a quick growth and attracted increasing interests in the field of rapid development of systems chemistry. In this study, alcohol dehydrogenase (ADH), lactate dehydrogenase (LDH), and mesoporous silica nanoparticles (MSN) immobilized nicotinamide adenine dinucleotide (NAD+) were successfully immobilized on the zeolitic imidazolate frameworks (ZIFs). This immobilized product was named ZIF@ADH/NAD-MSN/LDH, and the effect of the multi-enzyme cascade was studied by measuring the catalytic synthesis of lactic acid. The loading efficiency of the enzyme in the in-situ co-immobilization method reached 92.65%. The synthesis rate of lactic acid was increased to 70.10%, which was about 2.82 times that of the free enzyme under the optimal conditions (40 °C, pH = 8). Additionally, ZIF@ADH/NAD-MSN/LDH had experimental stability (71.67% relative activity after four experiments) and storage stability (93.45% relative activity after three weeks of storage at 4 °C; 76.89% relative activity after incubation in acetonitrile-aqueous solution for 1 h; 27.42% relative activity after incubation in 15% N, N-Dimethylformamide (DMF) solution for 1 h). In summary, in this paper, the cyclic regeneration of coenzymes was achieved, and the reaction efficiency of the multi-enzyme biocatalytic cascade was improved due to the reduction of substrate diffusion.
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19
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Abstract
The industrial use of enzymes generally necessitates their immobilization onto solid supports. The well-known high affinity of enzymes for metal-organic framework (MOF) materials, together with the great versatility of MOFs in terms of structure, composition, functionalization and synthetic approaches, has led the scientific community to develop very different strategies for the immobilization of enzymes in/on MOFs. This review focuses on one of these strategies, namely, the one-pot enzyme immobilization within sustainable MOFs, which is particularly enticing as the resultant biocomposite Enzyme@MOFs have the potential to be: (i) prepared in situ, that is, in just one step; (ii) may be synthesized under sustainable conditions: with water as the sole solvent at room temperature with moderate pHs, etc.; (iii) are able to retain high enzyme loading; (iv) have negligible protein leaching; and (v) give enzymatic activities approaching that given by the corresponding free enzymes. Moreover, this methodology seems to be near-universal, as success has been achieved with different MOFs, with different enzymes and for different applications. So far, the metal ions forming the MOF materials have been chosen according to their low price, low toxicity and, of course, their possibility for generating MOFs at room temperature in water, in order to close the cycle of economic, environmental and energy sustainability in the synthesis, application and disposal life cycle.
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20
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Wei B, Xu H, Cheng L, Yuan Q, Liu C, Gao H, Liang H. Highly Selective Entrapment of His-Tagged Enzymes on Superparamagnetic Zirconium-Based MOFs with Robust Renewability to Enhance pH and Thermal Stability. ACS Biomater Sci Eng 2021; 7:3727-3736. [PMID: 34291917 DOI: 10.1021/acsbiomaterials.1c00780] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Metal-organic frameworks (MOFs), as a kind of poriferous nanoparticle, are promising candidates for enzyme immobilization to enhance their stability and reusability. However, most MOFs could not specifically immobilize enzymes and regenerate easily, which inevitably leads to serious high consumption and environmental pollution. In this study, renewable and magnetic MOFs were first constructed to specially immobilize His-tagged enzymes from the cell lysates without purification. The immobilized β-glucuronidase exhibited wider pH adaptability and temperature stability. The relative activity of immobilized β-glucuronidase was still maintained at ∼80% after eight cycles. Importantly, after simple treatment, the immobilization capacity of regenerated MOFs after simple treatment was restored to more than 90% in the first three times. The specific magnetic MOFs were proven to be an efficient and renewable platform for one-step immobilization and purification of His-tagged enzymes, showing great potential in industrial applications of nanotechnology and biocatalysis.
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Affiliation(s)
- Bin Wei
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Haichang Xu
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Leiyu Cheng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Qipeng Yuan
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Changxia Liu
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Huiling Gao
- College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
| | - Hao Liang
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China.,College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, P. R. China
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21
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Abstract
Bioelectrocatalysis using redox enzymes appears as a sustainable way for biosensing, electricity production, or biosynthesis of fine products. Despite advances in the knowledge of parameters that drive the efficiency of enzymatic electrocatalysis, the weak stability of bioelectrodes prevents large scale development of bioelectrocatalysis. In this review, starting from the understanding of the parameters that drive protein instability, we will discuss the main strategies available to improve all enzyme stability, including use of chemicals, protein engineering and immobilization. Considering in a second step the additional requirements for use of redox enzymes, we will evaluate how far these general strategies can be applied to bioelectrocatalysis.
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22
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Sokolov AV, Limareva LV, Iliasov PV, Gribkova OV, Sustretov AS. Methods of Encapsulation of Biomacromolecules and Living Cells. Prospects of Using Metal–Organic Frameworks. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [PMCID: PMC8141827 DOI: 10.1134/s1070428021040011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The review discusses different methods of encapsulation and biomineralization of macromolecules and living cells. Main advantages and disadvantages of most commonly used carriers, matrices, and materials for immobilization of proteins, enzymes, nucleic acids, and living cells are briefly surveyed. Examples of delivery vehicles for multifunctional encapsulation of protein-like substances are presented. Particular attention is paid to prospects of using metal–organic frameworks in medicine and biotechnology.
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Affiliation(s)
- A. V. Sokolov
- Institute of Experimental Medicine and Biotechnologies, Samara State Medical University, Ministry of Health of the Russian Federation, 443099 Samara, Russia
| | - L. V. Limareva
- Institute of Experimental Medicine and Biotechnologies, Samara State Medical University, Ministry of Health of the Russian Federation, 443099 Samara, Russia
| | - P. V. Iliasov
- Institute of Experimental Medicine and Biotechnologies, Samara State Medical University, Ministry of Health of the Russian Federation, 443099 Samara, Russia
| | - O. V. Gribkova
- Institute of Experimental Medicine and Biotechnologies, Samara State Medical University, Ministry of Health of the Russian Federation, 443099 Samara, Russia
| | - A. S. Sustretov
- Institute of Experimental Medicine and Biotechnologies, Samara State Medical University, Ministry of Health of the Russian Federation, 443099 Samara, Russia
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23
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Tülek A, Yıldırım D, Aydın D, Binay B. Highly-stable Madurella mycetomatis laccase immobilized in silica-coated ZIF-8 nanocomposites for environmentally friendly cotton bleaching process. Colloids Surf B Biointerfaces 2021; 202:111672. [PMID: 33690061 DOI: 10.1016/j.colsurfb.2021.111672] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 01/31/2023]
Abstract
In this study, a laccase from Madurella mycetomatis (MmLac) was produced heterologously in Pichia pastoris; the initial immobilization in a metal-organic framework (MOF) (MmLac/ZIF-8) was achieved using zinc nitrate and 2-methylimidazole. Due to the instability of MmLac/ZIF-8 in an acidic medium, a silica layer was created on the surface of MmLac/MOF-8. The immobilized laccase composite (silica@MmLac/ZIF-8) obtained was further treated with glutaraldehyde (silica@Glu-MmLac/ZIF-8) to increase stability of composite. Fourier-transform infrared spectroscopy, X-ray diffraction and scanning electron microscopy techniques were used to confirm the immobilization of MmLac and to investigate the morphology of the immobilized laccase samples. The MmLac samples were also characterised in terms of optimum pH, temperature and thermal stability. The optimum pH of all the MmLac samples was determined to be 4.0. The free MmLac showed maximum activity at 55 °C, whereas both silica@MmLac/ZIF-8 and silica@Glu-MmLac/ZIF-8 were maximumly active at 65 °C. The silica@MmLac/ZIF-8 and silica@Glu-MmLac/ZIF-8 were 9.3- and 11.8-fold higher in stability, respectively, than the free MmLac at 65 °C. Furthermore, both silica@MmLac/ZIF-8 and silica@Glu-MmLac/ZIF-8 showed a higher bleaching performance than free MmLac on cotton woven fabric. According to these results, silica@MmLac/ZIF-8 and silica@Glu-MmLac/ZIF-8 may be promising candidates for biocatalysts in laccase-based biotechnological applications.
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Affiliation(s)
- Ahmet Tülek
- Gebze Technical University, Faculty of Science, Department of Molecular Biology and Genetics, Gebze, 41400, Kocaeli, Turkey.
| | - Deniz Yıldırım
- Cukurova University, Faculty of Ceyhan Engineering, Department of Chemical Engineering, Ceyhan, 01950, Adana, Turkey.
| | - Derya Aydın
- Ak-Kim Kimya San. ve Tic. A.S., Çiftlikköy, 77600, Yalova, Turkey.
| | - Barış Binay
- Gebze Technical University, Faculty of Engineering, Department of Bioengineering, Gebze, 41400, Kocaeli, Turkey.
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24
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Ren D, Wang Z, Jiang S, Yu H, Zhang S, Zhang X. Recent environmental applications of and development prospects for immobilized laccase: a review. Biotechnol Genet Eng Rev 2021; 36:81-131. [PMID: 33435852 DOI: 10.1080/02648725.2020.1864187] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Laccases have enormous potential as promising 'green' biocatalysts in environmental applications including wastewater treatment and polluted soil bioremediation. The catalytic oxidation reaction they perform uses only molecular oxygen without other cofactors, and the only product after the reaction is water. The immobilization of laccase offers several improvements such as protected activity and enhanced stability over free laccase. In addition, the reusability of immobilized laccase is adistinct advantage for future applications. This review covers the sources of and progress in laccase research, and discusses the different methodologies of laccase immobilization that have emerged in the recent 5-10 years, as well as its applications to environmental fields, and evaluates these emerging technologies. Abbreviations: (2,4,6-TCP): 2,4,6-trichlorophenol; (2,4-DCP): 2,4-dichlorophenol; (ABTS), 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid); (ACE), acetaminophen; (BC-AS), almond shell; (BC-PM), pig manure; (BC-PW), pine wood; (BPA), bisphenol A; (BPA), bisphenol A; (BPF), bisphenol F; (BPS), bisphenol S; (C60), fullerene; (Ca-AIL), calcium-alginate immobilized laccase; (CBZ), carbamazepine; (CETY), cetirizine; (CHT-PGMA-PEI-Cu (II) NPs), Cu (II)-chelated chitosan nanoparticles; (CLEAs), cross-linked enzyme aggregates; (CMMC), carbon-based mesoporous magnetic composites; (COD), chemical oxygen demand; (CPH), ciprofloxacin hydrochloride; (CS), chitosan; (CTC), chlortetracycline; (Cu-AIL), copper-alginate immobilized laccase; (DBR K-4BL), Drimarene brilliant red K-4BL; (DCF), diclofenac; (E1),estrone; (E2), 17 β-estradiol; (EDC), 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride; (EDCs), endocrine disrupting chemicals; (EE2), 17α-ethinylestradiol; (EFMs), electrospun fibrous membranes; (FL), free laccase; (fsMP), fumed silica microparticles; (GA-CBs), GLU-crosslinked chitosan beads; (GA-CBs), glutaraldehyde-crosslinked chitosan beads; (GA-Zr-MOF), graphene aerogel-zirconium-metal organic framework; (GLU), glutaraldehyde; (GO), graphene oxide; (HMCs), hollow mesoporous carbon spheres; (HPEI/PES), hyperbranched polyethyleneimine/polyether sulfone; (IC), indigo carmine; (IL), immobilized laccase; (kcat), catalytic constant; (Km), Michealis constant; (M-CLEAs), Magnetic cross-linked enzyme aggregates; (MMSNPs-CPTS-IDA-Cu2+), Cu2+-chelated magnetic mesoporous silica nanoparticles; (MSS), magnetic mesoporous silica spheres; (MWNTs), multi-walled carbon nanotubes; (MWNTs), multi-walled carbon nanotubes; (NHS), N-hydroxy succinimide; (O-MWNTs), oxidized-MWNTs; (P(AAm-NIPA)), poly(acrylamide-N-isopropylacrylamide); (p(GMA)), poly(glycidyl methacrylate); (p(HEMA)), poly(hydroxyethyl methacrylate); (p(HEMA-g-GMA)-NH2, poly(glycidyl methacrylate) brush grafted poly(hydroxyethyl methacrylate); (PA6/CHIT), polyamide 6/chitosan; (PAC), powdered active carbon; (PAHs), polycyclic aromatic hydrocarbons; (PAM-CTS), chitosan grafted polyacrylamide hydrogel; (PAN/MMT/GO), polyacrylonitrile/montmorillonite/graphene oxide; (PAN/PVdF), polyacrylonitrile/polyvinylidene fluoride; (PEG), poly ethylene glycol; (PEI), Poly(ethyleneimine); (poly(4-VP)), poly(4-vinyl pyridine); (poly(GMA-MAA)), poly(glycidyl methacrylate-methacrylic acid); (PVA), polyvinyl alcohol; (RBBR), Remazol Brilliant Blue R; (SDE), simulated dye effluent; (semi-IPNs), semi-interpenetrating polymer networks; (TC), tetracycline; (TCH), tetracycline hydrochloride; (TCS), triclosan; (Vmax), maximum activity; (Zr-MOF, MMU), micro-mesoporous Zr-metal organic framework.
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Affiliation(s)
- Dajun Ren
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
| | - Zhaobo Wang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
| | - Shan Jiang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
| | - Hongyan Yu
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
| | - Shuqin Zhang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
| | - Xiaoqing Zhang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology , Wuhan, China.,Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology , Wuhan, Hubei, China
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Liang W, Wied P, Carraro F, Sumby CJ, Nidetzky B, Tsung CK, Falcaro P, Doonan CJ. Metal–Organic Framework-Based Enzyme Biocomposites. Chem Rev 2021; 121:1077-1129. [DOI: 10.1021/acs.chemrev.0c01029] [Citation(s) in RCA: 166] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Weibin Liang
- Department of Chemistry and Centre for Advanced Nanomaterials, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Peter Wied
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Francesco Carraro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Christopher J. Sumby
- Department of Chemistry and Centre for Advanced Nanomaterials, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Bernd Nidetzky
- Institute of Biotechnology and Biochemical Engineering, Graz University of Technology, Petersgasse 12/1, 8010 Graz, Austria
| | - Chia-Kuang Tsung
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Paolo Falcaro
- Institute of Physical and Theoretical Chemistry, Graz University of Technology, Stremayrgasse 9, 8010 Graz, Austria
| | - Christian J. Doonan
- Department of Chemistry and Centre for Advanced Nanomaterials, The University of Adelaide, Adelaide, South Australia 5005, Australia
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Wang Z, Ren D, Yu H, Jiang S, Zhang S, Zhang X. Study on improving the stability of adsorption-encapsulation immobilized Laccase@ZIF-67. BIOTECHNOLOGY REPORTS (AMSTERDAM, NETHERLANDS) 2020; 28:e00553. [PMID: 33240797 PMCID: PMC7674278 DOI: 10.1016/j.btre.2020.e00553] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 10/14/2020] [Accepted: 11/01/2020] [Indexed: 01/10/2023]
Abstract
Laccase (Trametes versicolor) was immobilized onto/into zeolite imidazolate framework-67 (ZIF-67) for the first time, materials were performed by assisting one-pot synthesis strategy in aqueous solution at room temperature. The resulting laccase@ZIF-67 composite was characterized by powder X-ray diffraction (PXRD), fourier transform infrared (FT-IR) spectroscopies, field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray (EDX), thermal gravimetric analyses (TGA). The results showed that laccase could be well immobilized on ZIF-67 materials. Laccase@ZIF-67 was stable on storage stability and reuseablility, retaining 88 % (15 days at 4 °C) and 59 % (five reaction cycles) of residual enzyme activity. Laccase@ZIF-67 exhibited relatively stable activity at pH 3-5. In addition, the thermal deactivation kinetic studies of laccase@ZIF-67 showed a lower k value, higher t1/2 and ΔG values along with the enhancement of thermodynamic parameters than that of free laccase, and laccase@ZIF-67 had excellent level of thermostability.
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Affiliation(s)
- Zhaobo Wang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
| | - Dajun Ren
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
| | - Hongyan Yu
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
| | - Shan Jiang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
| | - Shuqin Zhang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
| | - Xiaoqing Zhang
- College of Resource and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430081, China
- Hubei Key Laboratory for Efficient Utilization and Agglomeration of Metallurgic Mineral Resources, Wuhan University of Science and Technology, Wuhan, Hubei, 430081, China
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Knedel TO, Buss S, Maisuls I, Daniliuc CG, Schlüsener C, Brandt P, Weingart O, Vollrath A, Janiak C, Strassert CA. Encapsulation of Phosphorescent Pt(II) Complexes in Zn-Based Metal–Organic Frameworks toward Oxygen-Sensing Porous Materials. Inorg Chem 2020; 59:7252-7264. [DOI: 10.1021/acs.inorgchem.0c00678] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Tim-Oliver Knedel
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Stefan Buss
- CiMIC, SoN, Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Iván Maisuls
- CiMIC, SoN, Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Correnstraße 40, 48149 Münster, Germany
| | - Carsten Schlüsener
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Philipp Brandt
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Oliver Weingart
- Institut für Theoretische Chemie und Computerchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Annette Vollrath
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie, Heinrich-Heine-Universität Düsseldorf, Universitätsstraße 1, 40225 Düsseldorf, Germany
| | - Cristian A. Strassert
- CiMIC, SoN, Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, Westfälische Wilhelms-Universität Münster, Heisenbergstraße 11, 48149 Münster, Germany
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Knedel TO, Ricklefs E, Schlüsener C, Urlacher VB, Janiak C. Laccase Encapsulation in ZIF-8 Metal-Organic Framework Shows Stability Enhancement and Substrate Selectivity. ChemistryOpen 2019; 8:1337-1344. [PMID: 31692915 PMCID: PMC6826233 DOI: 10.1002/open.201900146] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/29/2019] [Indexed: 11/07/2022] Open
Abstract
CgL1 laccase from Corynebacterium glutamicum was encapsulated into the metal-organic framework (MOF) ZIF-8 which was synthesized in a rapid enzyme friendly aqueous synthesis, the fastest in situ encapsulation of laccases reported to date. The obtained enzyme/MOF, i. e. laccase@ZIF-8 composite showed enhanced thermal (up to 70 °C) and chemical (N,N-dimethylformamide) stability, resulting in a stable heterogenous catalyst, suitable for high temperature reactions in organic solvents. Furthermore, the defined structure of ZIF-8 produced a size selective substrate specificity, so that substrates larger than the pore size were not accepted. Thereby, 2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) was used to verify that the enzyme is immobilized inside the MOF versus the outside surface. The enzyme@MOF composite was analyzed by atomic absorption spectroscopy (ASS) to precisely determine the enzyme loading to 2.1 wt%.
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Affiliation(s)
- Tim-Oliver Knedel
- Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf
| | - Esther Ricklefs
- Institut für Biochemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf
| | - Carsten Schlüsener
- Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf
| | - Vlada B Urlacher
- Institut für Biochemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf
| | - Christoph Janiak
- Institut für Anorganische Chemie und Strukturchemie Heinrich-Heine-Universität Düsseldorf 40204 Düsseldorf
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