Biocatalytic micromixer coated with enzyme-MOF thin film for CO2 conversion to formic acid

Chai, Milton; Bazaz, Sajad Razavi; Daiyan, Rahman; Razmjou, Amir; Warkiani, Majid Ebrahimi; Amal, Rose; Chen, Vicki

doi:10.1016/j.cej.2021.130856

Cited by 42 publications

(25 citation statements)

References 94 publications

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“…Once amino groups are present on the surface, choices are available to proceed with either glutaraldehyde activation or carbodiimide activated ester reaction routes. Instead of using surface covalent immobilization, Razmjou and co-workers [ 48 ] grew ZIF encapsulated with carbonic anhydrase and formate dehydrogenase in tandem on the surface of SLA printed micromixers for the production of formic acid from CO 2 . These advances are expected to inspire more hybrid system innovations, taking advantage of each technology’s strength.…”

Section: Post-printing Immobilizationmentioning

confidence: 99%

“…Other strategies originating from innovations in conventional enzyme immobilization techniques will also be utilized. For example, MOFs were self-assembled in-situ on the surface of a 3D printed micromixer while simultaneously encapsulating enzymes [ 48 ]. Alternatively, we imagine that in the near future enzyme-encapsulated MOFs could be conveniently dispersed in any 3D printing matrix forming hybrid enzyme immobilization techniques.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

“…Because VP does not require a high temperature to melt materials or high material viscosity to hold a shape for curing, enzymes can be directly mixed with photo-curable resin and immobilized by an entrapment [ 46 ]. Nevertheless, post-printing enzyme immobilization is also a common practice with VP methods, leveraging its high spatial resolution to create fine structures [ 47 , 48 ]. The 3D print scaffold can be generated first and then the enzyme is immobilized by a covalent reaction or physical coating.…”

Section: Introductionmentioning

confidence: 99%

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Advances in 3D Gel Printing for Enzyme Immobilization

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Fang

et al. 2022

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Incorporating enzymes with three-dimensional (3D) printing is an exciting new field of convergence research that holds infinite potential for creating highly customizable components with diverse and efficient biocatalytic properties. Enzymes, nature’s nanoscale protein-based catalysts, perform crucial functions in biological systems and play increasingly important roles in modern chemical processing methods, cascade reactions, and sensor technologies. Immobilizing enzymes on solid carriers facilitates their recovery and reuse, improves stability and longevity, broadens applicability, and reduces overall processing and chemical conversion costs. Three-dimensional printing offers extraordinary flexibility for creating high-resolution complex structures that enable completely new reactor designs with versatile sub-micron functional features in macroscale objects. Immobilizing enzymes on or in 3D printed structures makes it possible to precisely control their spatial location for the optimal catalytic reaction. Combining the rapid advances in these two technologies is leading to completely new levels of control and precision in fabricating immobilized enzyme catalysts. The goal of this review is to promote further research by providing a critical discussion of 3D printed enzyme immobilization methods encompassing both post-printing immobilization and immobilization by physical entrapment during 3D printing. Especially, 3D printed gel matrix techniques offer mild single-step entrapment mechanisms that produce ideal environments for enzymes with high retention of catalytic function and unparalleled fabrication control. Examples from the literature, comparisons of the benefits and challenges of different combinations of the two technologies, novel approaches employed to enhance printed hydrogel physical properties, and an outlook on future directions are included to provide inspiration and insights for pursuing work in this promising field.

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Section: Post-printing Immobilizationmentioning

confidence: 99%

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Advances in 3D Gel Printing for Enzyme Immobilization

Shen

Zhang

Fang

et al. 2022

Gels

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“…The intergrain boundary or intergrain voids would be benecial for applications which require high lm permeance rather than selectivity, or processes that involve the transport of bulk materials that are larger than the MOF inherent pores, such as for membranes and lms with immobilised catalysts or biocatalysts. 98,99 In this case, the strategy for creating a highly packed yet highly permeable lm via intergrain boundary diffusion is highly desired. Thin lms with high intergrain boundary pathways can be easily formed via a simple dip-coating method involving immersion into a thick MOF solution to form a thick MOF coated lm.…”

Section: Tuning Strategies For Polycrystalline Lmsmentioning

confidence: 99%

Transport tuning strategies in MOF film synthesis – a perspective

et al. 2022

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“…Moreover, recently, Chai et al [40] introduced the idea of applying a micromixer with a threaded channel for CO 2 conversion to HCOOH. The EMR setup utilized is as shown in Figure 3.…”

Section: Types Of Enzymatic Reactor Systems Available For Biocatalytic Conversion Of Co 2 31 Enzyme Membrane Reactor (Emr) Systemmentioning

confidence: 99%

A Review on the Design and Performance of Enzyme-Aided Catalysis of Carbon Dioxide in Membrane, Electrochemical Cell and Photocatalytic Reactors

et al. 2021

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Multi-enzyme cascade catalysis involved three types of dehydrogenase enzymes, namely, formate dehydrogenase (FDH), formaldehyde dehydrogenase (FaldDH), alcohol dehydrogenase (ADH), and an equimolar electron donor, nicotinamide adenine dinucleotide (NADH), assisting the reaction is an interesting pathway to reduce thermodynamically stable molecules of CO2 from the atmosphere. The biocatalytic sequence is interesting because it operates under mild reaction conditions (low temperature and pressure) and all the enzymes are highly selective, which allows the reaction to produce three basic chemicals (formic acid, formaldehyde, and methanol) in just one pot. There are various challenges, however, in applying the enzymatic conversion of CO2, namely, to obtain high productivity, increase reusability of the enzymes and cofactors, and to design a simple, facile, and efficient reactor setup that will sustain the multi-enzymatic cascade catalysis. This review reports on enzyme-aided reactor systems that support the reduction of CO2 to methanol. Such systems include enzyme membrane reactors, electrochemical cells, and photocatalytic reactor systems. Existing reactor setups are described, product yields and biocatalytic productivities are evaluated, and effective enzyme immobilization methods are discussed.

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Biocatalytic micromixer coated with enzyme-MOF thin film for CO2 conversion to formic acid

Cited by 42 publications

References 94 publications

Advances in 3D Gel Printing for Enzyme Immobilization

Advances in 3D Gel Printing for Enzyme Immobilization

Transport tuning strategies in MOF film synthesis – a perspective

A Review on the Design and Performance of Enzyme-Aided Catalysis of Carbon Dioxide in Membrane, Electrochemical Cell and Photocatalytic Reactors

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