1
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Alatzoglou C, Patila M, Giannakopoulou A, Spyrou K, Yan F, Li W, Chalmpes N, Polydera AC, Rudolf P, Gournis D, Stamatis H. Development of a Multi-Enzymatic Biocatalytic System through Immobilization on High Quality Few-Layer bio-Graphene. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 13:nano13010127. [PMID: 36616038 PMCID: PMC9824680 DOI: 10.3390/nano13010127] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/23/2022] [Accepted: 12/25/2022] [Indexed: 06/02/2023]
Abstract
In this work, we report the green production of few-layer bio-Graphene (bG) through liquid exfoliation of graphite in the presence of bovine serum albumin. Microscopic characterization evaluated the quality of the produced nanomaterial, showing the presence of 3-4-layer graphene. Moreover, spectroscopic techniques also confirmed the quality of the resulted bG, as well as the presence of bovine serum albumin on the graphene sheets. Next, for the first time, bG was used as support for the simultaneous covalent co-immobilization of three enzymes, namely β-glucosidase, glucose oxidase, and horseradish peroxidase. The three enzymes were efficiently co-immobilized on bG, demonstrating high immobilization yields and activity recoveries (up to 98.5 and 90%, respectively). Co-immobilization on bG led to an increase of apparent KM values and a decrease of apparent Vmax values, while the stability of the nanobiocatalysts prevailed compared to the free forms of the enzymes. Co-immobilized enzymes exhibited high reusability, preserving a significant part of their activity (up to 72%) after four successive catalytic cycles at 30 °C. Finally, the tri-enzymatic nanobiocatalytic system was applied in three-step cascade reactions, involving, as the first step, the hydrolysis of p-Nitrophenyl-β-D-Glucopyranoside and cellobiose.
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Affiliation(s)
- Christina Alatzoglou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Michaela Patila
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Archontoula Giannakopoulou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantinos Spyrou
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Feng Yan
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Wenjian Li
- Engineering and Technology Institute Groningen, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Nikolaos Chalmpes
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Angeliki C. Polydera
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
| | - Petra Rudolf
- Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands
| | - Dimitrios Gournis
- Department of Materials Science & Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Haralambos Stamatis
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, 45110 Ioannina, Greece
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2
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Behera S, Balasubramanian S. Molecular simulations explain the exceptional thermal stability, solvent tolerance and solubility of protein-polymer surfactant bioconjugates in ionic liquids. Phys Chem Chem Phys 2022; 24:21904-21915. [PMID: 36065955 DOI: 10.1039/d2cp02636h] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Proteins complexed electrostatically with polymer surfactants constitute a viscous liquid by themselves, called the solvent-free protein liquid (SFPL). A solution of SFPL in a room temperature ionic liquid (PS-IL) offers the protein hyperthermal stability, higher solubility and greater IL tolerance. A generic understanding of these protein-polymer systems is obtained herein through extensive atomistic molecular dynamics simulations of three different enzymes (lipase A, lysozyme and myoglobin) under various conditions. Along with increased intra-protein hydrogen bonding, the surfactant coating around the proteins imparts greater thermal stability, and also aids in screening protein-IL interactions, endowing them IL tolerance. The reduced surface polarity of the protein-polymer bioconjugate and hydrogen bonding between the ethylene glycol groups of the surfactant and the IL cation contribute to the facile solvation of the protein in its PS-IL form. The results presented here rationalize several experimental observations and will aid in the improved design of such hybrid materials for sustainable catalysis.
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Affiliation(s)
- Sudarshan Behera
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India.
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560 064, India.
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3
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Chatterjee A, Ghosh S, Ghosh C, Das D. Fluorescent Microswimmers Based on Cross-β Amyloid Nanotubes and Divergent Cascade Networks. Angew Chem Int Ed Engl 2022; 61:e202201547. [PMID: 35578748 DOI: 10.1002/anie.202201547] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 12/21/2022]
Abstract
Shaped through millions of years of evolution, the spatial localization of multiple enzymes in living cells employs extensive cascade reactions to enable highly coordinated multimodal functions. Herein, by utilizing a complex divergent cascade, we exploit the catalytic potential as well as templating abilities of streamlined cross-β amyloid nanotubes to yield two orthogonal roles simultaneously. The short peptide based paracrystalline nanotube surfaces demonstrated the generation of fluorescence signals within entangled networks loaded with alcohol dehydrogenase (ADH). The nanotubular morphologies were further used to generate cascade-driven microscopic motility through surface entrapment of sarcosine oxidase (SOX) and catalase (Cat). Moreover, a divergent cascade network was initiated by upstream catalysis of the substrate molecules through the surface mutation of catalytic moieties. Notably, the resultant downstream products led to the generation of motile fluorescent microswimmers by utilizing the two sets of orthogonal properties and, thus, mimicked the complex cascade-mediated functionalities of extant biology.
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Affiliation(s)
- Ayan Chatterjee
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Souvik Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Chandranath Ghosh
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
| | - Dibyendu Das
- Department of Chemical Sciences & Centre for Advanced Functional Materials, Indian Institute of Science Education and Research (IISER), Kolkata, Mohanpur, West Bengal, 741246, India
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4
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Fluorescent Microswimmers Based on Cross‐β Amyloid Nanotubes and Divergent Cascade Networks. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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5
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Behera S, Balasubramanian S. Insights into substrate behavior in a solvent-free protein liquid to rationalize its reduced catalytic rate. RSC Adv 2022; 12:11896-11905. [PMID: 35481067 PMCID: PMC9016799 DOI: 10.1039/d2ra00666a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 04/12/2022] [Indexed: 11/21/2022] Open
Abstract
When proteins are engineered with a polymer surfactant coating on their surface, they can form a liquid phase by themselves, without the need for a solvent, such as, say, water. However, such solvent-free protein liquids (SFPL), despite their capability to function at temperatures above those in aqueous solutions, exhibit much reduced catalytic rates. A comprehensive understanding of the nature of substrates in such liquids is crucial to reason out the reduced catalytic activity of enzymes as SFPL media, and thus identify the means to improve the same. Employing atomistic molecular dynamics simulations of lipase A from Bacillus subtilis in its SFPL form, we demonstrate that at low concentrations, the substrate molecules are located mostly in the hydrophilic layer of the surfactant shell that ensheaths the enzyme; substrates in this SFPL are present in various conformations with similar propensities as in the aqueous solution. Slower translational diffusion and reorientational dynamics, as well as the reduced tendency of a substrate molecule to closely interact with the enzymes in the SFPL medium have been identified herein as the contributing factors for the reduced activity of enzymes in this hybrid liquid. At high concentrations of substrates corresponding to those used in in vitro experiments, the formation of an enzyme-substrate complex is observed. Microscopic insights reported here can aid in the choice of surfactants to improve the catalytic rate of enzymes in SFPL.
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Affiliation(s)
- Sudarshan Behera
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560 064 India
| | - Sundaram Balasubramanian
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research Bangalore 560 064 India
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6
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Day GJ, Zhang WH, Carter BM, Xiao W, Sambrook MR, Perriman AW. A Rationally Designed Supercharged Protein-Enzyme Chimera Self-Assembles In Situ to Yield Bifunctional Composite Textiles. ACS APPLIED MATERIALS & INTERFACES 2021; 13:60433-60445. [PMID: 34894651 DOI: 10.1021/acsami.1c18857] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Catalytically active materials for the enhancement of personalized protective equipment (PPE) could be advantageous to help alleviate threats posed by neurotoxic organophosphorus compounds (OPs). Accordingly, a chimeric protein comprised of a supercharged green fluorescent protein (scGFP) and phosphotriesterase from Agrobacterium radiobacter (arPTE) was designed to drive the polymer surfactant (S-)-mediated self-assembly of microclusters to produce robust, enzymatically active materials. The chimera scGFP-arPTE was structurally characterized via circular dichroism spectroscopy and synchrotron radiation small-angle X-ray scattering, and its biophysical properties were determined. Significantly, the chimera exhibited greater thermal stability than the native constituent proteins, as well as a higher catalytic turnover number (kcat). Furthermore, scGFP-arPTE was electrostatically complexed with monomeric S-, driving self-assembly into [scGFP-arPTE][S-] nanoclusters, which could be dehydrated and cross-linked to yield enzymatically active [scGFP-arPTE][S-] porous films with a high-order structure. Moreover, these clusters could self-assemble within cotton fibers to generate active composite textiles without the need for the pretreatment of the fabrics. Significantly, the resulting materials maintained the biophysical activities of both constituent proteins and displayed recyclable and persistent activity against the nerve agent simulant paraoxon.
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Affiliation(s)
- Graham J Day
- School of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, University Walk, Bristol BS8 1TD, United Kingdom
| | - William H Zhang
- School of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, University Walk, Bristol BS8 1TD, United Kingdom
| | - Ben M Carter
- School of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, University Walk, Bristol BS8 1TD, United Kingdom
| | - Wenjin Xiao
- School of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, University Walk, Bristol BS8 1TD, United Kingdom
| | - Mark R Sambrook
- CBR Division, Defence Science and Technology Laboratory (Dstl), Porton Down, Salisbury SP4 0JQ, United Kingdom
| | - Adam W Perriman
- School of Cellular and Molecular Medicine, Biomedical Sciences Building, University of Bristol, University Walk, Bristol BS8 1TD, United Kingdom
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7
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Zhang W, Day GJ, Zampetakis I, Carrabba M, Zhang Z, Carter BM, Govan N, Jackson C, Chen M, Perriman AW. Three-Dimensional Printable Enzymatically Active Plastics. ACS APPLIED POLYMER MATERIALS 2021; 3:6070-6077. [PMID: 35983011 PMCID: PMC9376927 DOI: 10.1021/acsapm.1c00845] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Here, we describe a facile route to the synthesis of enzymatically active highly fabricable plastics, where the enzyme is an intrinsic component of the material. This is facilitated by the formation of an electrostatically stabilized enzyme-polymer surfactant nanoconstruct, which, after lyophilization and melting, affords stable macromolecular dispersions in a wide range of organic solvents. A selection of plastics can then be co-dissolved in the dispersions, which provides a route to bespoke 3D enzyme plastic nanocomposite structures using a wide range of fabrication techniques, including melt electrowriting, casting, and piston-driven 3D printing. The resulting constructs comprising active phosphotriesterase (arPTE) readily detoxify organophosphates with persistent activity over repeated cycles and for long time periods. Moreover, we show that the protein guest molecules, such as arPTE or sfGFP, increase the compressive Young's modulus of the plastics and that the identity of the biomolecule influences the nanomorphology and mechanical properties of the resulting materials. Overall, we demonstrate that these biologically active nanocomposite plastics are compatible with state-of-the-art 3D fabrication techniques and that the methodology could be readily applied to produce robust and on-demand smart nanomaterial structures.
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Affiliation(s)
- William
H. Zhang
- School
of Cellular and Molecular Medicine, University
of Bristol, Bristol BS8 1TD, United Kingdom
| | - Graham J. Day
- School
of Cellular and Molecular Medicine, University
of Bristol, Bristol BS8 1TD, United Kingdom
| | - Ioannis Zampetakis
- Bristol
Composites Institute (ACCIS), University
of Bristol, Bristol BS8 1TR, United Kingdom
| | - Michele Carrabba
- Bristol
Medical School, Translational Health Sciences, University of Bristol, Bristol BS2 8DZ, United Kingdom
| | - Zhongyang Zhang
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Aarhus DK-8000, Denmark
| | - Ben M. Carter
- School
of Cellular and Molecular Medicine, University
of Bristol, Bristol BS8 1TD, United Kingdom
| | - Norman Govan
- Defence
Science and Technology Laboratory, Porton Down, Salisbury SP4 0JQ, United Kingdom
| | - Colin Jackson
- Australian
National University, Research School of
Chemistry, Canberra ACT 2601, Australia
- Australian
Research Council Centre of Excellence for Innovations in Peptide and
Protein Science, Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
- Australian
Research Council Centre of Excellence in Synthetic Biology, Research
School of Chemistry, Australian National
University, Canberra, ACT 2601, Australia
| | - Menglin Chen
- Interdisciplinary
Nanoscience Center (iNANO), Aarhus University, Aarhus DK-8000, Denmark
| | - Adam W. Perriman
- School
of Cellular and Molecular Medicine, University
of Bristol, Bristol BS8 1TD, United Kingdom
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8
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An artificial membrane binding protein-polymer surfactant nanocomplex facilitates stem cell adhesion to the cartilage extracellular matrix. Biomaterials 2021; 276:120996. [PMID: 34280823 DOI: 10.1016/j.biomaterials.2021.120996] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 05/12/2021] [Accepted: 06/24/2021] [Indexed: 12/27/2022]
Abstract
One of the major challenges within the emerging field of injectable stem cell therapies for articular cartilage (AC) repair is the retention of sufficient viable cell numbers at the site of injury. Even when delivered via intra-articular injection, the number of stem cells retained at the target is often low and declines rapidly over time. To address this challenge, an artificial plasma membrane binding nanocomplex was rationally designed to provide human mesenchymal stem cells (hMSCs) with increased adhesion to articular cartilage tissue. The nanocomplex comprises the extracellular matrix (ECM) binding peptide of a placenta growth factor-2 (PlGF-2) fused to a supercharged green fluorescent protein (scGFP), which was electrostatically conjugated to anionic polymer surfactant chains to yield [S-]scGFP_PlGF2. The [S-]scGFP_PlGF2 nanocomplex spontaneously inserts into the plasma membrane of hMSCs, is not cytotoxic, and does not inhibit differentiation. The nanocomplex-modified hMSCs showed a significant increase in affinity for immobilised collagen II, a key ECM protein of cartilage, in both static and dynamic cell adhesion assays. Moreover, the cells adhered strongly to bovine ex vivo articular cartilage explants resulting in high cell numbers. These findings suggest that the re-engineering of hMSC membranes with [S-]scGFP_PlGF2 could improve the efficacy of injectable stem cell-based therapies for the treatment of damaged articular cartilage.
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9
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Behera S, Das S, Balasubramanian S. An atomistic view of solvent-free protein liquids: the case of Lipase A. Phys Chem Chem Phys 2021; 23:7302-7312. [PMID: 33876090 DOI: 10.1039/d0cp05964a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solvent-free enzymes hold the promise of being able to deliver higher activity at elevated temperatures by virtue of them being not limited by the boiling point of the solvent. They have been realized in the liquid phase through a polymer surfactant coating on the protein surface. However, a clear understanding of intermolecular interactions, structure, dynamics, and the behaviour of the minuscule amount of water present in the solvent-free protein liquid is essential to enhance the activity of these biofluids. Using atomistic molecular dynamics simulations, we demonstrate that the scaled spatial correlations between proteins in the hybrid liquid phase of Lipase A enzymes are comparable to the inter-particle correlations in a noble gas fluid. The hydrophilic region of the surfactants forms a coronal layer around each enzyme which percolates throughout the liquid, while the hydrophobic parts are present as disjointed clusters. Inter-surfactant interactions, determined to be attractive and in the range of -200 to -300 kcal mol-1, stabilize the liquid state. While the protein retains its native state conformational dynamics in the solvent-free form, the fluxionality of its side chains is much reduced; at 333 K, the latter is found to be equivalent to that of the enzyme in an aqueous solution at 249 K. Despite the sluggishness of the solvent-free enzyme, some water molecules exhibit high mobility and transit between enzymes primarily via the interspersed hydrophilic regions. These microscopic insights offer ideas to improve substrate diffusion in the liquid to enable the enhancement of catalytic activity.
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Affiliation(s)
- Sudarshan Behera
- Chemistry and Physics of Materials Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bangalore 560064, India.
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10
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Ma X, Sui H, Yu Q, Cui J, Hao J. Silica Capsules Templated from Metal-Organic Frameworks for Enzyme Immobilization and Catalysis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:3166-3172. [PMID: 33651618 DOI: 10.1021/acs.langmuir.1c00065] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Inspired by the unique biological microenvironments of eukaryotic cells, hollow capsules are promising to immobilize enzymes due to their advantages for physical protection and improved activity of enzymes. Herein, we report a facile method to fabricate silica (SiO2) capsules using zeolitic imidazole framework-8 nanoparticles (ZIF-8 NPs) as templates for enzyme immobilization and catalysis. Enzyme-encapsulated SiO2 capsules are obtained by encapsulation of enzymes in ZIF-8 NPs and subsequent coating of silica layers, followed by the removal of templates in a mild condition (i.e., ethylenediaminetetraacetic acid (EDTA) solution). The enzyme (i.e., horseradish peroxidase, HRP) activity in SiO2 capsules is improved more than 15 times compared to that of enzyme-loaded ZIF-8 NPs. Enzymes in SiO2 capsules maintain a high relative activity after being subjected to high temperature, enzymolysis, and recycling compared to free enzymes. In addition, multienzymes (e.g., glucose oxidase and HRP) can also be coencapsulated within SiO2 capsules to show a reaction with a high cascade catalytic efficacy. This work provides a versatile strategy for enzyme immobilization and protection with potential applications in biocatalysis.
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Affiliation(s)
- Xuebin Ma
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Haiyan Sui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Qun Yu
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
| | - Jiwei Cui
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, Shandong 266237, China
| | - Jingcheng Hao
- Key Laboratory of Colloid and Interface Chemistry of the Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan, Shandong 250100, China
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11
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Brogan APS. Preparation and application of solvent-free liquid proteins with enhanced thermal and anhydrous stabilities. NEW J CHEM 2021. [DOI: 10.1039/d1nj00467k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This perspective details a robust chemical modification strategy to protect proteins from temperature, aggregation, and non-aqueous environments.
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12
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de Luis B, Morellá-Aucejo Á, Llopis-Lorente A, Godoy-Reyes TM, Villalonga R, Aznar E, Sancenón F, Martínez-Máñez R. A chemical circular communication network at the nanoscale. Chem Sci 2020; 12:1551-1559. [PMID: 34163918 PMCID: PMC8179104 DOI: 10.1039/d0sc04743k] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/29/2020] [Indexed: 12/18/2022] Open
Abstract
In nature, coordinated communication between different entities enables a group to accomplish sophisticated functionalities that go beyond those carried out by individual agents. The possibility of programming and developing coordinated communication networks at the nanoscale-based on the exchange of chemical messengers-may open new approaches in biomedical and communication areas. Here, a stimulus-responsive circular model of communication between three nanodevices based on enzyme-functionalized Janus Au-mesoporous silica capped nanoparticles is presented. The output in the community of nanoparticles is only observed after a hierarchically programmed flow of chemical information between the members.
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Affiliation(s)
- Beatriz de Luis
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Ángela Morellá-Aucejo
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Antoni Llopis-Lorente
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Tania M Godoy-Reyes
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Reynaldo Villalonga
- Nanosensors & Nanomachines Group, Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid Madrid Spain
| | - Elena Aznar
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Félix Sancenón
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
| | - Ramón Martínez-Máñez
- Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València Camino de Vera s/n 46022 Valencia Spain
- CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) Spain
- Unidad Mixta UPV-CIPF de Investigación en Mecanismos de Enfermedades y Nanomedicina, Universitat Politècnica de València, Centro de Investigación Príncipe Felipe Valencia Spain
- Unidad Mixta de Investigación en Nanomedicina y Sensores, Universitat Politècnica de València, Instituto de Investigación Sanitaria La Fe Valencia Spain
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13
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Magana JR, Sproncken CCM, Voets IK. On Complex Coacervate Core Micelles: Structure-Function Perspectives. Polymers (Basel) 2020; 12:E1953. [PMID: 32872312 PMCID: PMC7565781 DOI: 10.3390/polym12091953] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 12/31/2022] Open
Abstract
The co-assembly of ionic-neutral block copolymers with oppositely charged species produces nanometric colloidal complexes, known, among other names, as complex coacervates core micelles (C3Ms). C3Ms are of widespread interest in nanomedicine for controlled delivery and release, whilst research activity into other application areas, such as gelation, catalysis, nanoparticle synthesis, and sensing, is increasing. In this review, we discuss recent studies on the functional roles that C3Ms can fulfil in these and other fields, focusing on emerging structure-function relations and remaining knowledge gaps.
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Affiliation(s)
| | | | - Ilja K. Voets
- Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands; (J.R.M.); (C.C.M.S.)
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14
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Rodriguez-Abetxuko A, Sánchez-deAlcázar D, Muñumer P, Beloqui A. Tunable Polymeric Scaffolds for Enzyme Immobilization. Front Bioeng Biotechnol 2020; 8:830. [PMID: 32850710 PMCID: PMC7406678 DOI: 10.3389/fbioe.2020.00830] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022] Open
Abstract
The number of methodologies for the immobilization of enzymes using polymeric supports is continuously growing due to the developments in the fields of biotechnology, polymer chemistry, and nanotechnology in the last years. Despite being excellent catalysts, enzymes are very sensitive molecules and can undergo denaturation beyond their natural environment. For overcoming this issue, polymer chemistry offers a wealth of opportunities for the successful combination of enzymes with versatile natural or synthetic polymers. The fabrication of functional, stable, and robust biocatalytic hybrid materials (nanoparticles, capsules, hydrogels, or films) has been proven advantageous for several applications such as biomedicine, organic synthesis, biosensing, and bioremediation. In this review, supported with recent examples of enzyme-protein hybrids, we provide an overview of the methods used to combine both macromolecules, as well as the future directions and the main challenges that are currently being tackled in this field.
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Affiliation(s)
| | | | - Pablo Muñumer
- PolyZymes group, POLYMAT and Department of Applied Chemistry (UPV/EHU), San Sebastián, Spain
| | - Ana Beloqui
- PolyZymes group, POLYMAT and Department of Applied Chemistry (UPV/EHU), San Sebastián, Spain
- Department of Applied Chemistry, University of the Basque Country, San Sebastián, Spain
- IKERBASQUE, Bilbao, Spain
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Giannakopoulou A, Gkantzou E, Polydera A, Stamatis H. Multienzymatic Nanoassemblies: Recent Progress and Applications. Trends Biotechnol 2020; 38:202-216. [DOI: 10.1016/j.tibtech.2019.07.010] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/23/2019] [Accepted: 07/25/2019] [Indexed: 12/23/2022]
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Abstract
We report the preparation, characterization and application of a novel magnetic four-enzyme nanobiocatalyst prepared by the simultaneous covalent co-immobilization of cellulase (CelDZ1), β-glucosidase (bgl), glucose oxidase (GOx) and horseradish peroxidase (HRP) onto the surface of amino-functionalized magnetic nanoparticles (MNPs). This nanobiocatalyst was characterized by various spectroscopic techniques. The co-immobilization process yielded maximum recovered enzymatic activity (CelDZ1: 42%, bgl: 66%, GOx: 94% and HRP: 78%) at a 10% v/v cross-linker concentration, after 2 h incubation time and at 1:1 mass ratio of MNPs to total enzyme content. The immobilization process leads to an increase of Km and a decrease of Vmax values of co-immobilized enzymes. The thermal stability studies of the co-immobilized enzymes indicated up to 2-fold increase in half-life time constants and up to 1.5-fold increase in their deactivation energies compared to the native enzymes. The enhanced thermodynamic parameters of the four-enzyme co-immobilized MNPs also suggested increment in their thermal stability. Furthermore, the co-immobilized enzymes retained a significant part of their activity (up to 50%) after 5 reaction cycles at 50 °C and remained active even after 24 d of incubation at 5 °C. The nanobiocatalyst was successfully applied in a four-step cascade reaction involving the hydrolysis of cellulose.
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18
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Atkins DL, Berrocal JA, Mason AF, Voets IK. Tandem catalysis in multicomponent solvent-free biofluids. NANOSCALE 2019; 11:19797-19805. [PMID: 31621738 DOI: 10.1039/c9nr06045f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Enzymes are widely employed to reduce the environmental impact of chemical industries as biocatalysts improve productivity and offer high selectively under mild reaction conditions in a diverse range of chemical transformations. The poor stability of biomacromolecules under reaction conditions is often a critical bottleneck to their application. Protein engineering or immobilization onto solid substrates may remedy this limitation but, unfortunately, this is often at the expense of catalytic potency or substrate specificity. In this work, we show that the combinatorial approach of chemical modification and supramolecular nanoencapsulation can endow mechanistically diverse enzymes with apparent extremophilic behavior. A protein-polymer surfactant core-shell architecture facilitates construction of increasingly complex biofluids from individual biosynthetic components, each of which retain biological activity at hydration levels almost two orders of magnitude below solvation. The herein constructed multifunctional biofluids operate in tandem up to 150 °C and in the total absence of solvent under apparent diffusional mass-transport limitation. The biosynthetic promotion of extremophilic traits for enzymes with diverse catalytic motions and chemical functions highlights the extraordinary capacity for a viscous surfactant milieu to replace both hydration and bulk waters.
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Affiliation(s)
- Dylan Luke Atkins
- Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands. and Laboratory of Physical Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands and Institute for Complex Molecular Systems, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - José Augusto Berrocal
- Institute for Complex Molecular Systems, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands and Laboratory of Macromolecular and Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Alexander Francesco Mason
- Institute for Complex Molecular Systems, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands and Laboratory of Bio-Organic Chemistry, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
| | - Ilja Karina Voets
- Laboratory of Self-Organizing Soft Matter, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands. and Institute for Complex Molecular Systems, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology, 5600 MB Eindhoven, The Netherlands
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Zhang WH, Carter BM, Day GJ, Govan N, Jackson C, Perriman AW. Sequential Electrostatic Assembly of a Polymer Surfactant Corona Increases Activity of the Phosphotriesterase arPTE. Bioconjug Chem 2019; 30:2771-2776. [PMID: 31603664 DOI: 10.1021/acs.bioconjchem.9b00664] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
We present a new methodology for the generation of discrete molecularly dispersed enzyme-polymer-surfactant bioconjugates. Significantly, we demonstrate that >3-fold increase in the catalytic efficiency of the diffusion-limited phosphotriesterase arPTE can be achieved through sequential electrostatic addition of cationic and anionic polymer surfactants, respectively. Here, the polymer surfactants assemble on the surface of the enzyme via ion exchange to yield a compact corona. The observed rate enhancement is consistent with a mechanism whereby the polymer-surfactant corona gives rise to a decrease in the dielectric constant in the vicinity of the active site of the enzyme, accelerating the rate-determining product diffusion step. The facile methodology has significant potential for increasing the efficiency of enzymes and could therefore have a substantially positive impact for industrial enzymology.
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Affiliation(s)
- William H Zhang
- University of Bristol , School of Cellular and Molecular Medicine , Bristol BS8 1TD , United Kingdom
| | - Benjamin M Carter
- University of Bristol , School of Cellular and Molecular Medicine , Bristol BS8 1TD , United Kingdom
| | - Graham J Day
- University of Bristol , School of Cellular and Molecular Medicine , Bristol BS8 1TD , United Kingdom
| | - Norman Govan
- Defence Science and Technology Laboratory , Salisbury SP4 0JQ , United Kingdom
| | - Colin Jackson
- Australian National University , Research School of Chemistry , Canberra ACT 2601 , Australia
| | - Adam W Perriman
- University of Bristol , School of Cellular and Molecular Medicine , Bristol BS8 1TD , United Kingdom
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Zhang H, Zhang H, Luo J, Wan Y. Enzymatic Cascade Catalysis in a Nanofiltration Membrane: Engineering the Microenvironment by Synergism of Separation and Reaction. ACS APPLIED MATERIALS & INTERFACES 2019; 11:22419-22428. [PMID: 31190541 DOI: 10.1021/acsami.9b05371] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Microenvironment plays a significant role in enzymatic catalysis, which directly influences enzyme activity and stability. It is important to regulate the enzyme microenvironment, especially for the liquid with unfavored properties (e.g., pH and dissolved oxygen). In this work, we propose a methodology that can regulate pH and substrate concentration for enzymatic catalysis by a biocatalytic membrane, which is composed of glucose oxidase (GOx) and horseradish peroxidase (HRP) co-immobilized in a polyamide nanofiltration (NF) membrane (i.e., beneath the separation layer). By virtue of the selective separation function of NF membrane and in situ production of organic acid/electron donor with GOx, a synergism effect of separation and reaction in the liquid/solid interface was manipulated for engineering the microenvironment of HRP to enhance its activity and stability for micropollutant removal in water. The outcome of this work not only provides a new methodology to precisely control enzymatic reaction but also offers a smart membrane system to efficiently and steadily remove the micropollutants in portable water.
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Affiliation(s)
- Huiru Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Hao Zhang
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Jianquan Luo
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
| | - Yinhua Wan
- State Key Laboratory of Biochemical Engineering , Institute of Process Engineering, Chinese Academy of Sciences , Beijing 100190 , P.R. China
- School of Chemical Engineering , University of Chinese Academy of Sciences , Beijing 100049 , PR China
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Liu Y, Qin Y, Zheng Y, Qin Y, Cheng M, Guo R. A one-pot and modular self-assembly strategy for high-performance organized enzyme cascade bioplatforms based on dual-functionalized protein–PtNP@mesoporous iron oxide hybrid. J Mater Chem B 2019; 7:43-52. [DOI: 10.1039/c8tb02162g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-pot and modular self-assembly strategy for high-performance enzyme cascade bioplatform based on dual-functionalized protein/inorganic hybrid.
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Affiliation(s)
- Yan Liu
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yuling Qin
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yuanlin Zheng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Yong Qin
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Mengjun Cheng
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
| | - Rong Guo
- School of Chemistry and Chemical Engineering
- Yangzhou University
- Yangzhou
- P. R. China
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22
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Liu Z, Wang B, Jin S, Wang Z, Wang L, Liang S. Bioinspired Dual-Enzyme Colloidosome Reactors for High-Performance Biphasic Catalysis. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41504-41511. [PMID: 30403332 DOI: 10.1021/acsami.8b14321] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
In this paper, a novel method for the construction of colloidosomes as a microreactor for dual-enzyme cascade biphasic reaction has been reported. A lipase-glucose oxidase (GOx) enzyme pair is employed in this system. A water-soluble enzyme GOx is compartmentalized inside the colloidosomes. A hydrophobic environment-favored enzyme Candida Antarctica lipase B (CalB) is adsorbed on the outer surfaces of the colloidosomes. The catalysis system is set up by introducing these dual-enzyme-immobilized microcapsules into acetic ether. H2O2 is produced in the aqueous phase by the doped GOx, and then H2O2 diffused out of the microcapsules is utilized by CalB to catalyze the oxidation of ethyl acetate. Finally, the formed peracids oxidized N-heteroaromatic in situ. Furthermore, no obvious yield decline is observed in four reaction cycles. Thus, our work provides a new strategy for the design of high-performance biomimicking reactors for multiple enzyme cascade reactions and further expands the potential application area of colloidosomes.
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23
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Insight into the molecular mechanism behind PEG-mediated stabilization of biofluid lipases. Sci Rep 2018; 8:12293. [PMID: 30115948 PMCID: PMC6095910 DOI: 10.1038/s41598-018-29871-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 07/18/2018] [Indexed: 01/26/2023] Open
Abstract
Bioconjugates established between anionic polyethylene glycol (PEG) based polymers and cationic proteins have proven to be a promising strategy to engineer thermostable biocatalysts. However, the enzyme activity of these bioconjugates is very low and the mechanism of non-covalent PEG-stabilization is yet to be understood. This work presents experimental and molecular dynamics simulation studies, using lipase-polymer surfactant nanoconjugates from mesophile Rhizomucor miehei (RML), performed to evaluate the effect of PEG on enzyme stability and activity. Results demonstrated that the number of hydrogen bonds between the cationized RML and PEG chain correlates with enzyme thermostability. In addition, an increase of both the number of PEG-polymers units and cationization degree of the enzyme leads to a decrease of enzyme activity. Modelling with SAXS data of aqueous solutions of the biofluid lipases agrees with previous hypothesis that these enzymes contain a core constituted of folded protein confined by a shell of surfactants. Together results provide valuable insight into the mechanism of non-covalent PEG mediated protein stabilization relevant for engineering active and thermostable biofluids. Furthermore, the first biofluids RML with activity comparable to their cationized counterpart are presented.
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24
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Affiliation(s)
- Josef M. Sperl
- Chair of Chemistry of Biogenic
Resources, Technical University of Munich, Campus Straubing for Biotechnology
and Sustainability, Schulgasse 16, 94315 Straubing, Germany
| | - Volker Sieber
- Chair of Chemistry of Biogenic
Resources, Technical University of Munich, Campus Straubing for Biotechnology
and Sustainability, Schulgasse 16, 94315 Straubing, Germany
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25
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Ohtsu T, Shigenari S, Yoshimoto M, Umakoshi H. Reactive bienzyme systems fabricated through immobilization of biotinylated glucose oxidase and peroxidase molecules onto neutralized avidin-conjugated liposomes. Biochem Eng J 2017. [DOI: 10.1016/j.bej.2017.05.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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26
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Schrittwieser JH, Velikogne S, Hall M, Kroutil W. Artificial Biocatalytic Linear Cascades for Preparation of Organic Molecules. Chem Rev 2017; 118:270-348. [DOI: 10.1021/acs.chemrev.7b00033] [Citation(s) in RCA: 371] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Joerg H. Schrittwieser
- Institute
of Chemistry, Organic and Bioorganic Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Stefan Velikogne
- ACIB
GmbH, Department of Chemistry, University of Graz, Heinrichstrasse
28, 8010 Graz, Austria
| | - Mélanie Hall
- Institute
of Chemistry, Organic and Bioorganic Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, Heinrichstrasse 28, 8010 Graz, Austria
| | - Wolfgang Kroutil
- Institute
of Chemistry, Organic and Bioorganic Chemistry, University of Graz, NAWI Graz, BioTechMed Graz, Heinrichstrasse 28, 8010 Graz, Austria
- ACIB
GmbH, Department of Chemistry, University of Graz, Heinrichstrasse
28, 8010 Graz, Austria
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