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Ghéczy N, Xu W, Szymańska K, Jarzębski AB, Walde P. Controllable Enzyme Immobilization via Simple and Quantitative Adsorption of Dendronized Polymer-Enzyme Conjugates Inside a Silica Monolith for Enzymatic Flow-Through Reactor Applications. ACS OMEGA 2022; 7:26610-26631. [PMID: 35936452 PMCID: PMC9352229 DOI: 10.1021/acsomega.2c02815] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/07/2022] [Indexed: 06/15/2023]
Abstract
Although many different methods are known for the immobilization of enzymes on solid supports for use in flow-through applications as enzyme reactors, the reproducible immobilization of predetermined amounts of catalytically active enzyme molecules remains challenging. This challenge was tackled using a macro- and mesoporous silica monolith as a support and dendronized polymer-enzyme conjugates. The conjugates were first prepared in an aqueous solution by covalently linking enzyme molecules and either horseradish peroxidase (HRP) or bovine carbonic anhydrase (BCA) along the chains of a water-soluble second-generation dendronized polymer using an established procedure. The obtained conjugates are stable biohybrid structures in which the linking unit between the dendronized polymer and each enzyme molecule is a bisaryl hydrazone (BAH) bond. Quantitative and reproducible enzyme immobilization inside the monolith is possible by simply adding a defined volume of a conjugate solution of a defined enzyme concentration to a dry monolith piece of the desired size. In that way, (i) the entire volume of the conjugate solution is taken up by the monolith piece due to capillary forces and (ii) all conjugates of the added conjugate solution remain stably adsorbed (immobilized) noncovalently without detectable leakage from the monolith piece. The observed flow-through activity of the resulting enzyme reactors was directly proportional to the amount of conjugate used for the reactor preparation. With conjugate solutions consisting of defined amounts of both types of conjugates, the controlled coimmobilization of the two enzymes, namely, BCA and HRP, was shown to be possible in a simple way. Different stability tests of the enzyme reactors were carried out. Finally, the enzyme reactors were applied to the catalysis of a two-enzyme cascade reaction in two types of enzymatic flow-through reactor systems with either coimmobilized or sequentially immobilized BCA and HRP. Depending on the composition of the substrate solution that was pumped through the two types of enzyme reactor systems, the coimmobilized enzymes performed significantly better than the sequentially immobilized ones. This difference, however, is not due to a molecular proximity effect with regard to the enzymes but rather originates from the kinetic features of the cascade reaction used. Overall, the method developed for the controllable and reproducible immobilization of enzymes in the macro- and mesoporous silica monolith offers many possibilities for systematic investigations of immobilized enzymes in enzymatic flow-through reactors, potentially for any type of enzyme.
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Affiliation(s)
- Nicolas Ghéczy
- Laboratory
for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich 8093, Switzerland
| | - Weina Xu
- Laboratory
for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich 8093, Switzerland
| | - Katarzyna Szymańska
- Department
of Chemical Engineering and Process Design, Silesian University of Technology, Księdza Marcina Strzody 7, Gliwice 44-100, Poland
| | - Andrzej B. Jarzębski
- Institute
of Chemical Engineering, Polish Academy
of Sciences, Baltycka 5, Gliwice 44-100, Poland
| | - Peter Walde
- Laboratory
for Multifunctional Materials, Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich 8093, Switzerland
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Szymańska K, Ciemięga A, Maresz K, Pudło W, Malinowski J, Mrowiec-Białoń J, Jarzębski AB. Catalytic Functionalized Structured Monolithic Micro-/Mesoreactors: Engineering, Properties, and Performance in Flow Synthesis: An Overview and Guidelines. FRONTIERS IN CHEMICAL ENGINEERING 2021. [DOI: 10.3389/fceng.2021.789102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
In this review article, we first discussed the development of silica monoliths with hierarchical macro-/mesopore structure and their potential figures of merit as continuous-flow micro-/mesoreactors of up to 30 ml working volume. Making use of the flow hindrance of different pore structures seen from the Darcy law perspective, we discriminated four structures of the monoliths (M1–M4). We then summarized the most important results, mainly from our studies of continuous-flow structured monolithic reactors and rotating bed reactors (RBRs) filled with structured pellets, activated with various catalytic entities and enzymes. The results show that an increase in the flow rate and thus velocity in reactors activated with more conventional catalytic sites has no or a minor positive effect on the apparent reaction rate. On the contrary, in those with the most open structure (M1) and functionalized with enzymes, it could increase by more than two orders of magnitude even at low overpressures. The production systems worked stably for at least 200 h. To conclude, the synthetic system made of the hierarchically structured monoliths, or RBRs filled with structured catalytic pellets, lay the foundation for a new platform for the high-yield production of a wide variety of specialty chemicals, even on a multikilogram scale, in a safe and sustained manner.
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Turke K, Meinusch R, Cop P, Prates da Costa E, Brand RD, Henss A, Schreiner PR, Smarsly BM. Amine-Functionalized Nanoporous Silica Monoliths for Heterogeneous Catalysis of the Knoevenagel Condensation in Flow. ACS OMEGA 2021; 6:425-437. [PMID: 33458494 PMCID: PMC7807742 DOI: 10.1021/acsomega.0c04857] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
Porous carrier materials functionalized with organocatalysts offer substantial advantages compared to homogeneous catalysts, e.g., easy separation of the catalyst, scalability, and an improved implementation in continuous operations. Here, we report the immobilization of (3-aminopropyl)trimethoxysilane (APTMS) onto self-prepared silica monoliths and its application as a heterogeneous catalyst in the Knoevenagel condensation between cyano ethylacetate and various aromatic aldehydes under continuous-flow conditions. The meso-macroporous silica monoliths (6-7 cm in length) were optimized to be used in flow taking advantage of their hierarchical meso- and macroporosity. The monoliths were cladded with a poly(ether ether ketone) (PEEK) tube by a refined procedure to guarantee tight connection between the carrier material and PEEK. Functionalization of the bare silica monoliths consisting of APTMS can be efficiently performed in flow in ethanol and toluene. While a large grafting gradient is obtained for toluene, the grafting in ethanol proceeds homogenously throughout the monolith, as evidenced by elemental analysis and time-of-flight secondary ion mass spectrometry (ToF-SIMS). The silica monoliths exhibit high conversion up to 95% with concurrent low back pressures, which is of importance in flow catalysis. By connecting two monoliths, high conversions can be maintained for several flow rates. Two types of monoliths were synthesized, possessing different mesopore sizes. The monolith bearing the larger mesopore size showed an enhanced turnover frequency (TOF), while the monolith with the smaller mesopores allowed for larger quantities of the product to be synthesized, due to the higher surface area. A long-term stability test showed that the functionalized monoliths were still active after 66 h of continuous usage, while the overall yield decreased over time.
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Affiliation(s)
- Kevin Turke
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Rafael Meinusch
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Pascal Cop
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Eric Prates da Costa
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Raoul D. Brand
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Anja Henss
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Peter R. Schreiner
- Institute
of Organic Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
| | - Bernd M. Smarsly
- Institute
of Physical Chemistry, Justus Liebig University
Giessen, Heinrich-Buff-Ring 17, D-35392 Giessen, Germany
- Center
for Materials Research, Heinrich-Buff-Ring 16, D-35392 Giessen, Germany
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Brás EJS, Chu V, Conde JP, Fernandes P. Recent developments in microreactor technology for biocatalysis applications. REACT CHEM ENG 2021. [DOI: 10.1039/d1re00024a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Through the use of microfluidics technology, one can severely accelerate the development and optimization of biocatalytic processes. In this work, the authors present a comprehensive review of the recent advances in the field.
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Affiliation(s)
- Eduardo J. S. Brás
- Instituto de Engenharia de Sistemas e Computadores – Microsistemas e Nanotecnologias (INESC MN)
- Lisbon
- Portugal
- IBB – Institute for Bioengineering and Biosciences
- Instituto Superior Técnico
| | - Virginia Chu
- Instituto de Engenharia de Sistemas e Computadores – Microsistemas e Nanotecnologias (INESC MN)
- Lisbon
- Portugal
| | - João Pedro Conde
- Instituto de Engenharia de Sistemas e Computadores – Microsistemas e Nanotecnologias (INESC MN)
- Lisbon
- Portugal
- Department of Bioengineering
- Instituto Superior Técnico
| | - Pedro Fernandes
- IBB – Institute for Bioengineering and Biosciences
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
- Portugal
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De Santis P, Meyer LE, Kara S. The rise of continuous flow biocatalysis – fundamentals, very recent developments and future perspectives. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00335b] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Very recent developments in the field of biocatalysis in continuously operated systems. Special attention on the future perspectives in this key emerging technological area ranging from process analytical technologies to digitalization.
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Affiliation(s)
- Piera De Santis
- Aarhus University
- Department of Engineering, Biological and Chemical Engineering Section
- Biocatalysis and Bioprocessing Group
- DK 8000 Aarhus
- Denmark
| | - Lars-Erik Meyer
- Aarhus University
- Department of Engineering, Biological and Chemical Engineering Section
- Biocatalysis and Bioprocessing Group
- DK 8000 Aarhus
- Denmark
| | - Selin Kara
- Aarhus University
- Department of Engineering, Biological and Chemical Engineering Section
- Biocatalysis and Bioprocessing Group
- DK 8000 Aarhus
- Denmark
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Zhu Y, Chen Q, Shao L, Jia Y, Zhang X. Microfluidic immobilized enzyme reactors for continuous biocatalysis. REACT CHEM ENG 2020. [DOI: 10.1039/c9re00217k] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This review investigates strategies for employing μ-IMERs for continuous biocatalysis via a top-down approach.
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Affiliation(s)
- Yujiao Zhu
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
- The Hong Kong Polytechnic University Shenzhen Research Institute
| | - Qingming Chen
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
- The Hong Kong Polytechnic University Shenzhen Research Institute
| | - Liyang Shao
- Department of Electrical and Electronic Engineering
- Southern University of Science and Technology
- Shenzhen
- China
| | - Yanwei Jia
- State Key Laboratory of Analog and Mixed Signal VLSI
- Institute of Microelectronics
- University of Macau
- Macau
- China
| | - Xuming Zhang
- Department of Applied Physics
- The Hong Kong Polytechnic University
- Hong Kong
- China
- The Hong Kong Polytechnic University Shenzhen Research Institute
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Jin W, Xu Y, Yu XW. Formation lipase cross-linked enzyme aggregates on octyl-modified mesocellular foams with oxidized sodium alginate. Colloids Surf B Biointerfaces 2019; 184:110501. [DOI: 10.1016/j.colsurfb.2019.110501] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/25/2019] [Accepted: 09/11/2019] [Indexed: 12/27/2022]
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Wang JZ, Zhu LL, Zhang F, Herman RA, Li WJ, Zhou XJ, Wu FA, Wang J. Microfluidic tools for lipid production and modification: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:35482-35496. [PMID: 31327140 DOI: 10.1007/s11356-019-05833-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Microfluidics has great potential as an efficient tool for a large range of applications in industry. The ability of such devices to deal with an extremely small amount of fluid has additional benefits, including superlatively fast and efficient mass and heat transfer. These characteristics of microfluidics have attracted an enormous amount of interest in their use as a novel tool for lipid production and modification. In addition, lipid resources have a close relationship with energy resources, and lipids are an alternative renewable energy source. Here, recent advances in the application of microfluidics for lipid production and modification, especially in the discovery, culturing, harvesting, separating, and monitoring of lipid-producing microorganisms, will be reviewed. Other applications of microfluidics, such as the modification of lipids from microorganisms, will also be discussed. The novel microfluidic tools in this review will be useful in applications to improve lipid production and modification in the future.
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Affiliation(s)
- Jin-Zheng Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Lin-Lin Zhu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fan Zhang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Richard Ansah Herman
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Wen-Jing Li
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Xue-Jiao Zhou
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Fu-An Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China.
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China.
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China.
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China.
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Zhang J, Chen J, Peng S, Peng S, Zhang Z, Tong Y, Miller PW, Yan XP. Emerging porous materials in confined spaces: from chromatographic applications to flow chemistry. Chem Soc Rev 2019; 48:2566-2595. [DOI: 10.1039/c8cs00657a] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Porous materials confined within capillary columns/microfluidic devices are discussed, and progress in chromatographic and membrane separations and catalysis is reviewed.
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Affiliation(s)
- Jianyong Zhang
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Junxing Chen
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Sheng Peng
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Shuyin Peng
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Zizhe Zhang
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | - Yexiang Tong
- Sun Yat-Sen University
- MOE Laboratory of Polymeric Composite and Functional Materials
- Guangzhou 510275
- China
| | | | - Xiu-Ping Yan
- State Key Laboratory of Food Science and Technology
- International Joint Laboratory on Food Safety
- School of Food Science and Technology
- Jiangnan University
- Wuxi 214122
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Arana-Peña S, Lokha Y, Fernández-Lafuente R. Immobilization on octyl-agarose beads and some catalytic features of commercial preparations of lipase a from Candida antarctica (Novocor ADL): Comparison with immobilized lipase B from Candida antarctica. Biotechnol Prog 2018; 35:e2735. [PMID: 30341806 DOI: 10.1002/btpr.2735] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 10/16/2018] [Accepted: 10/16/2018] [Indexed: 12/11/2022]
Abstract
Lipase A from Candida antarctica (CALA, commercialized as Novocor ADL) was immobilized on octyl-agarose, which is a very useful support for lipase immobilization, and coated with polyethylenimine to improve the stability. The performance was compared to that of the form B of the enzyme (CALB) immobilized on the same support, as both enzymes are among the most popular ones used in biocatalysis. CALA immobilization produced a significant increase in enzyme activity vs. p-nitrophenyl butyrate (pNPB) (by a factor of seven), and the coating with PEI did not have a significant effect on enzyme activity. CALB reduced its activity slightly after enzyme immobilization. Octyl-CALA was less stable than octyl-CALB at pH 9 and more stable at pH 5 and, more clearly, at pH 7. PEI coating only increased octyl-CALA stability at pH 9. In organic solvents, CALB had much better stability in methanol and was similarly stable in acetonitrile or dioxane. In these systems, the PEI coating of octyl-CALA permitted some stabilization. While octyl-CALA was more active vs. pNPB, octyl-CALB was much more active vs. mandelic esters or triacetin. Thus, depending on the specific reaction and the conditions, CALA or CALB may offer different advantages and drawbacks. © 2018 American Institute of Chemical Engineers Biotechnol. Prog., 35: e2735, 2019.
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Affiliation(s)
- Sara Arana-Peña
- Dept. de Biocatálisis, ICP-CSIC, Campus UAM-CSIC, Madrid, Spain
| | - Yuliya Lokha
- Dept. de Biocatálisis, ICP-CSIC, Campus UAM-CSIC, Madrid, Spain
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