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Oerlemans RAJF, Shao J, Huisman SGAM, Li Y, Abdelmohsen LKEA, van Hest JCM. Compartmentalized Intracellular Click Chemistry with Biodegradable Polymersomes. Macromol Rapid Commun 2023; 44:e2200904. [PMID: 36607841 DOI: 10.1002/marc.202200904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/17/2022] [Indexed: 01/07/2023]
Abstract
Polymersome nanoreactors that can be employed as artificial organelles have gained much interest over the past decades. Such systems often include biological catalysts (i.e., enzymes) so that they can undertake chemical reactions in cellulo. Examples of nanoreactor artificial organelles that acquire metal catalysts in their structure are limited, and their application in living cells remains fairly restricted. In part, this shortfall is due to difficulties associated with constructing systems that maintain their stability in vitro, let alone the toxicity they impose on cells. This study demonstrates a biodegradable and biocompatible polymersome nanoreactor platform, which can be applied as an artificial organelle in living cells. The ability of the artificial organelles to covalently and non-covalently incorporate tris(triazolylmethyl)amine-Cu(I) complexes in their membrane is shown. Such artificial organelles are capable of effectively catalyzing a copper-catalyzed azide-alkyne cycloaddition intracellularly, without compromising the cells' integrity. The platform represents a step forward in the application of polymersome-based nanoreactors as artificial organelles.
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Affiliation(s)
- Roy A J F Oerlemans
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jingxin Shao
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Sander G A M Huisman
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Yudong Li
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Loai K E A Abdelmohsen
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Jan C M van Hest
- Department of Bio-medical engineering and Chemical engineering & Chemistry, Eindhoven University of Technology: Technische Universiteit Eindhoven, P.O. Box 513, 5600 MB Eindhoven, The Netherlands
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2
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Jailani N, Jaafar NR, Rahman RA, Illias RM. Robust cross-linked cyclodextrin glucanotransferase from Bacillus lehensis G1 aggregates using an improved cross-linker and a new co-aggregant for the production of cyclodextrins. Enzyme Microb Technol 2023; 169:110283. [PMID: 37433237 DOI: 10.1016/j.enzmictec.2023.110283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2023] [Revised: 06/06/2023] [Accepted: 06/25/2023] [Indexed: 07/13/2023]
Abstract
One of the potentials of carrier-free cross-linked enzyme aggregates (CLEA) immobilization is the ability to be separated and reuse. Yet, it might be impeded by the poor mechanical stability resulting low recyclability. CLEA of CGTase from Bacillus lehensis G1 (CGTase G1-CLEA) using chitosan (CS) as a cross-linker demonstrated high activity recovery however, displayed poor reusability. Therefore, the relationship between mechanical strength and reusability is studied by enhancing the CS mechanical properties and applying a new co-aggregation approach. Herein, CS was chemically cross-linked with glutaraldehyde (GA) and GA was introduced as a co-aggregant (coGA). CGTase G1-CLEA developed using an improved synthesized chitosan-glutaraldehyde (CSGA) cross-linker and a new coGA technique showed to increase its mechanical stability which retained 63.4% and 52.2%, respectively compared to using CS that remained 33.1% of their initial activity after stirred at 500 rpm. The addition of GA impacted the morphology and interaction consequently stabilizing the CLEAs durability in production of cyclodextrins. As a result, the reusability of CGTase G1-CLEA with CSGA and coGA increased by 56.6% and 42.8%, respectively compared to previous CLEA after 5 cycles for 2 h of reaction. This verifies that the mechanical strength of immobilized enzyme influences the improvement of its operational stability.
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Affiliation(s)
- Nashriq Jailani
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nardiah Rizwana Jaafar
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Roshanida A Rahman
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Rosli Md Illias
- Department of Bioprocess and Polymer Engineering, Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
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3
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Yip YS, Manas NHA, Jaafar NR, Rahman RA, Puspaningsih NNT, Illias RM. Combined cross-linked enzyme aggregates of cyclodextrin glucanotransferase and maltogenic amylase from Bacillus lehensis G1 for maltooligosaccharides synthesis. Int J Biol Macromol 2023; 242:124675. [PMID: 37127056 DOI: 10.1016/j.ijbiomac.2023.124675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 04/18/2023] [Accepted: 04/27/2023] [Indexed: 05/03/2023]
Abstract
Maltooligosaccharides (MOS) are functional oligosaccharides that can be synthesized through enzymatic cascade reaction between cyclodextrin glucanotransferase (CGTase) and maltogenic amylase (Mag1) from Bacillus lehensis G1. To address the problems of low operational stability and non-reusability of free enzymes, both enzymes were co-immobilized as combined cross-linked enzyme aggregates (Combi-CLEAs-CM) with incorporation of bovine serum albumin (BSA) and Tween 80 (Combi-CLEAs-CM-add). Combi-CLEAs-CM and Combi-CLEAs-CM-add showed activity recoveries of 54.12 % and 69.44 %, respectively after optimization. Combi-CLEAs-CM-add showed higher thermal stability at higher temperatures (40 °C) with longer half-life (46.20 min) as compared to those of free enzymes (36.67 min) and Combi-CLEAs-CM (41.51 min). Both combi-CLEAs also exhibited higher pH stability over pH 5 to pH 9, and displayed excellent reusability with >50 % of initial activity retained after four cycles. The reduction in Km value of about 22.80 % and 1.76-fold increase in starch hydrolysis in comparison to Combi-CLEAs-CM attested the improvement of enzyme-substrate interaction by Tween 80 and pores formation by BSA in Combi-CLEAs-CM-add. The improved product specificity of Combi-CLEAs-CM-add also produced the highest yield of MOS (492 mg/g) after 3 h. Therefore, Combi-CLEAs-CM-add with ease of preparation, excellent reusability and high operational stability is believed to be highly efficacious biocatalyst for MOS production.
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Affiliation(s)
- Yee Seng Yip
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nor Hasmaliana Abdul Manas
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nardiah Rizwana Jaafar
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Roshanida A Rahman
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Ni Nyoman Tri Puspaningsih
- Laboratory of Proteomics, University-CoE Research Center for Bio-Molecule Engineering, Universitas Airlangga, Kampus C-UNAIR, Surabaya, East Java, Indonesia
| | - Rosli Md Illias
- Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia; Institute of Bioproduct Development, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
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4
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Ölçücü G, Krauss U, Jaeger KE, Pietruszka J. Carrier‐Free Enzyme Immobilizates for Flow Chemistry. CHEM-ING-TECH 2023. [DOI: 10.1002/cite.202200167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Affiliation(s)
- Gizem Ölçücü
- Heinrich Heine University Düsseldorf, Forschungszentrum Jülich GmbH Institute of Molecular Enzyme Technology Wilhelm Johnen Straße 52425 Jülich Germany
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences IBG-1: Biotechnology Wilhelm Johnen Straße 52425 Jülich Germany
| | - Ulrich Krauss
- Heinrich Heine University Düsseldorf, Forschungszentrum Jülich GmbH Institute of Molecular Enzyme Technology Wilhelm Johnen Straße 52425 Jülich Germany
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences IBG-1: Biotechnology Wilhelm Johnen Straße 52425 Jülich Germany
| | - Karl-Erich Jaeger
- Heinrich Heine University Düsseldorf, Forschungszentrum Jülich GmbH Institute of Molecular Enzyme Technology Wilhelm Johnen Straße 52425 Jülich Germany
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences IBG-1: Biotechnology Wilhelm Johnen Straße 52425 Jülich Germany
| | - Jörg Pietruszka
- Forschungszentrum Jülich GmbH Institute of Bio- and Geosciences IBG-1: Biotechnology Wilhelm Johnen Straße 52425 Jülich Germany
- Heinrich Heine University Düsseldorf, Forschungszentrum Jülich GmbH Institute of Biorganic Chemistry Wilhelm Johnen Straße 52425 Jülich Germany
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5
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Zeng J, Tang Y, Yang J, Yang Y, Li G, Wang X, Feng J, Chen K, Li H, Ouyang P. Inert enzyme nanoaggregates for simultaneous biodecarboxylation and CO2 conversion. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122447] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Khatik AG, Jain AK, Muley AB. Preparation, characterization and stability of cross linked nitrilase aggregates (nitrilase-CLEAs) for hydroxylation of 2-chloroisonicotinonitrile to 2-chloroisonicotinic acid. Bioprocess Biosyst Eng 2022; 45:1559-1579. [PMID: 35962826 DOI: 10.1007/s00449-022-02766-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 07/28/2022] [Indexed: 11/28/2022]
Abstract
Nitrilases capable of performing hydroxylation of 2-chloroisonicotinonitrile to 2-chloroisonicotinic acid were screened, and ES-NIT-102 was the best nitrilase for said biotransformation. Nitrilase was immobilized as cross linked enzyme aggregates (nitrilase-CLEAs) by fractional precipitation with iso-propanol, and cross linked with glutaraldehyde. The nitrilase-CLEAs prepared with optimized 35 mM glutaraldehyde for 120 min cross linking time had 82.36 ± 4.45% residual activity, and displayed type-II structural CLEAs formation as confirmed by particle size, SEM, FTIR, and SDS-PAGE analysis. Nitrilase-CLEAs had superior pH and temperature stability, showed a shift in optimal temperature by 5 °C, and retained nearly 1.5 to 1.7 folds activity over free nitrilase at 50 °C and 55 °C after more than 9 h incubation. Nitrilase-CLEAs showed reduced affinity and decreased conversion of substrate as indicated by slightly higher Km values by 5.19% and reduced Vmax by 17%. Furthermore, these nitrilase-CLEAs showed 98% conversion, 94.72 g/L product formation, and 83.30% recovery after 24 h when used for hydroxylation of 2-chloroisonicotinonitrile to 2-chloroisonicotinic acid. Nitrilase-CLEAs were catalytically active for 3 cycles showcasing 81% conversion, 75.53 g/L product formation and 66.42% yield. The recovered product was confirmed by HPLC, FTIR, LC-MS, and 1H NMR, and displayed > 99% purity.
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Affiliation(s)
- Amol Gulab Khatik
- School of Basic & Applied Sciences, Galgotias University, Gautam Buddh Nagar, Greater Noida, Uttar Pradesh, 201310, India.
| | - Arvind Kumar Jain
- School of Basic & Applied Sciences, Galgotias University, Gautam Buddh Nagar, Greater Noida, Uttar Pradesh, 201310, India
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7
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Jailani N, Jaafar NR, Suhaimi S, Mackeen MM, Bakar FDA, Illias RM. Cross-linked cyclodextrin glucanotransferase aggregates from Bacillus lehensis G1 for cyclodextrin production: Molecular modeling, developmental, physicochemical, kinetic and thermodynamic properties. Int J Biol Macromol 2022; 213:516-533. [PMID: 35636531 DOI: 10.1016/j.ijbiomac.2022.05.170] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 05/14/2022] [Accepted: 05/24/2022] [Indexed: 12/23/2022]
Abstract
Type of cross-linking agents influence the stability and active cross-linked enzyme aggregates (CLEA) immobilization. The information of molecular interaction between enzyme-cross linker is not well explored thus screening wide numbers of cross-linker is crucial in CLEA development. This study combined the molecular modeling and experimental optimization to investigate the influences of different cross-linking agents in developing CLEA of cyclodextrin glucanotranferase G1 (CGTase G1) for cyclodextrins (CDs) synthesis. Seven types of cross-linkers were tested and CGTase G1 cross-linked with chitosan (CS-CGTG1-CLEA) displayed the highest activity recovery (84.6 ± 0.26%), aligning with its highest binding affinity, radius of gyration and flexibility through in-silico analysis towards CGTase G1. CS-CGTG1-CLEA was characterized and showed a longer half-life (30.06 ± 1.51 min) and retained a greater thermal stability (52.73 ± 0.93%) after 30 min incubation at optimal conditions compared to free enzyme (10.30 ± 1.34 min and 5.51 ± 2.10% respectively). CS-CGTG1-CLEA improved CDs production by 33% and yielded cumulative of 52.62 g/L CDs after five cycles for 2 h of reaction. This study reveals that abundant of hydroxyl group on chitosan interacted with CGTase G1 surface amino acid residues to form strong and stable CLEA thus can be a promising biocatalyst in CDs production.
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Affiliation(s)
- Nashriq Jailani
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Nardiah Rizwana Jaafar
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Suhaily Suhaimi
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
| | - Mukram Mohamed Mackeen
- Department of Chemical Sciences, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia; Institute of Systems Biology (INBIOSIS), Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - Farah Diba Abu Bakar
- Department of Biological Sciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 Bangi, Selangor Darul Ehsan, Malaysia
| | - Rosli Md Illias
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia.
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8
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Sampaio CS, Angelotti JAF, Fernandez-Lafuente R, Hirata DB. Lipase immobilization via cross-linked enzyme aggregates: Problems and prospects - A review. Int J Biol Macromol 2022; 215:434-449. [PMID: 35752332 DOI: 10.1016/j.ijbiomac.2022.06.139] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 06/06/2022] [Accepted: 06/20/2022] [Indexed: 02/08/2023]
Abstract
In this review we have focused on the preparation of cross-linked enzyme aggregates (CLEAs) from lipases, as these are among the most used enzyme in bioprocesses. This immobilization method is considered very attractive due to preparation simplicity, non-use of supports and the possibility of using crude enzyme extracts. CLEAs provide lipase stabilization under extreme temperature or pH conditions or in the presence of organic solvents, in addition to preventing enzyme leaching in aqueous medium. However, it presents some problems in the preparation and limitations in their use. The problems in preparation refer mainly to the crosslinking step, and may be solved using an aminated feeder. The problems in handling have been tackled designing magnetic-CLEAs or trapping the CLEAs in particles with better mechanical properties, the substrate diffusion problems has been reduced by producing more porous-CLEAs, etc. The enzyme co-immobilization using combi-CLEAs is also a new tendency. Therefore, this review explores the CLEAs methodology aimed at lipase immobilization and its applications.
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Affiliation(s)
- Camila S Sampaio
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil
| | - Joelise A F Angelotti
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil
| | - Roberto Fernandez-Lafuente
- Department of Biocatalysis, ICP-CSIC, Campus UAM-CSIC, Cantoblanco, 28049 Madrid, Spain.; Center of Excellence in Bionanoscience Research, Member of The External Scientific Advisory Board, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Daniela B Hirata
- Postgraduate Program in Biotechnology, Federal University of Alfenas, 37130-001 Alfenas, MG, Brazil.
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Biocatalytic self-assembled synthetic vesicles and coacervates: From single compartment to artificial cells. Adv Colloid Interface Sci 2022; 299:102566. [PMID: 34864354 DOI: 10.1016/j.cis.2021.102566] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2021] [Revised: 11/15/2021] [Accepted: 11/19/2021] [Indexed: 12/18/2022]
Abstract
Compartmentalization is an intrinsic feature of living cells that allows spatiotemporal control over the biochemical pathways expressed in them. Over the years, a library of compartmentalized systems has been generated, which includes nano to micrometer sized biomimetic vesicles derived from lipids, amphiphilic block copolymers, peptides, and nanoparticles. Biocatalytic vesicles have been developed using a simple bag containing enzyme design of liposomes to multienzymes immobilized multi-vesicular compartments for artificial cell generation. Additionally, enzymes were also entrapped in membrane-less coacervate droplets to mimic the cytoplasmic macromolecular crowding mechanisms. Here, we have discussed different types of single and multicompartment systems, emphasizing their recent developments as biocatalytic self-assembled structures using recent examples. Importantly, we have summarized the strategies in the development of the self-assembled structure to improvise their adaptivity and flexibility for enzyme immobilization. Finally, we have presented the use of biocatalytic assemblies in mimicking different aspects of living cells, which further carves the path for the engineering of a minimal cell.
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Shao J, Cao S, Wu H, Abdelmohsen LKEA, van Hest JCM. Therapeutic Stomatocytes with Aggregation Induced Emission for Intracellular Delivery. Pharmaceutics 2021; 13:pharmaceutics13111833. [PMID: 34834248 PMCID: PMC8617661 DOI: 10.3390/pharmaceutics13111833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/21/2021] [Accepted: 10/30/2021] [Indexed: 12/03/2022] Open
Abstract
Bowl-shaped biodegradable polymersomes, or stomatocytes, have much potential as drug delivery systems, due to their intriguing properties, such as controllable size, programmable morphology, and versatile cargo encapsulation capability. In this contribution, we developed well-defined therapeutically active stomatocytes with aggregation-induced emission (AIE) features by self-assembly of biodegradable amphiphilic block copolymers, comprising poly(ethylene glycol) (PEG) and AIEgenic poly(trimethylene carbonate) (PTMC) moieties. The presence of the AIEgens endowed the as-prepared stomatocytes with intrinsic fluorescence, which was employed for imaging of cellular uptake of the particles. It simultaneously enabled the photo-mediated generation of reactive oxygen species (ROS) for photodynamic therapy. The potential of the therapeutic stomatocytes as cargo carriers was demonstrated by loading enzymes (catalase and glucose oxidase) in the nanocavity, followed by a cross-linking reaction to achieve stable encapsulation. This provided the particles with a robust motile function, which further strengthened their therapeutic effect. With these unique features, enzyme-loaded AIEgenic stomatocytes are an attractive platform to be exploited in the field of nanomedicine.
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11
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Guan L, Wu F, Ren G, Wang J, Yang X, Huang X, Yu P, Lin Y, Mao L. Role of rare-earth elements in enhancing bioelectrocatalysis for biosensing with NAD +-dependent glutamate dehydrogenase. Chem Sci 2021; 12:13434-13441. [PMID: 34777762 PMCID: PMC8528072 DOI: 10.1039/d1sc00193k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 09/01/2021] [Indexed: 11/21/2022] Open
Abstract
Dehydrogenases (DHs) are widely explored bioelectrocatalysts in the development of enzymatic bioelectronics like biosensors and biofuel cells. However, the relatively low intrinsic reaction rates of DHs which mostly depend on diffusional coenzymes (e.g., NAD+) have limited their bioelectrocatalytic performance in applications such as biosensors with a high sensitivity. In this study, we find that rare-earth elements (REEs) can enhance the activity of NAD+-dependent glutamate dehydrogenase (GDH) toward highly sensitive electrochemical biosensing of glutamate in vivo. Electrochemical studies show that the sensitivity of the GDH-based glutamate biosensor is remarkably enhanced in the presence of REE cations (i.e., Yb3+, La3+ or Eu3+) in solution, of which Yb3+ yields the highest sensitivity increase (ca. 95%). With the potential effect of REE cations on NAD+ electrochemistry being ruled out, homogeneous kinetic assays by steady-state and stopped-flow spectroscopy reveal a two-fold enhancement in the intrinsic reaction rate of GDH by introducing Yb3+, mainly through accelerating the rate-determining NADH releasing step during the catalytic cycle. In-depth structural investigations using small angle X-ray scattering and infrared spectroscopy indicate that Yb3+ induces the backbone compaction of GDH and subtle β-sheet transitions in the active site, which may reduce the energetic barrier to NADH dissociation from the binding pocket as further suggested by molecular dynamics simulation. This study not only unmasks the mechanism of REE-promoted GDH kinetics but also paves a new way to highly sensitive biosensing of glutamate in vivo.
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Affiliation(s)
- Lihao Guan
- Department of Chemistry, Capital Normal University Beijing 100048 China
| | - Fei Wu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences Beijing 100049 China
| | - Guoyuan Ren
- Department of Chemistry, Capital Normal University Beijing 100048 China
| | - Jialu Wang
- Department of Chemistry, Capital Normal University Beijing 100048 China
| | - Xiaoti Yang
- Beijing National Laboratory for Molecular Science, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiaohua Huang
- National and Local Joint Engineering Research Center of Biomedical Functional Materials, Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, School of Chemistry and Materials Science, Nanjing Normal University Nanjing 210023 China
| | - Ping Yu
- Beijing National Laboratory for Molecular Science, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences Beijing 100049 China
| | - Yuqing Lin
- Department of Chemistry, Capital Normal University Beijing 100048 China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Science, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, University of Chinese Academy of Sciences Beijing 100049 China
- College of Chemistry, Beijing Normal University Beijing 100875 China
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12
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Fahim A, Annunziata O. Effect of a Good buffer on the fate of metastable protein-rich droplets near physiological composition. Int J Biol Macromol 2021; 186:519-527. [PMID: 34265335 DOI: 10.1016/j.ijbiomac.2021.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 10/20/2022]
Abstract
Metastable protein-rich microdroplets are produced from liquid-liquid phase separation (LLPS) of protein aqueous solutions. These globules can be intermediates for the formation of other protein-rich phases. Lysozyme aqueous solutions undergo LLPS around 0 °C in the presence of NaCl near physiological conditions. Here, it is shown that insertion of small amounts of 4-(2-hydroxyethyl)-1-piperazineethanesulfonate (HEPES, 0.1 M) as a second additive to lysozyme-NaCl-water solutions near physiological ionic strength (0.2 M) is an essential step for triggering conversion of protein-rich droplets into another phase. Specifically, LLPS induced by cooling reproducibly leads to a rapid and high-yield formation of compact tetragonal crystalline microparticles only in the presence of HEPES. These microcrystals exhibit small size (1-3 μm), narrow size distribution and guest-binding properties. The temperature-concentration phase diagram shows a characteristic topology with LLPS boundary metastable with respect to tetragonal microcrystals, which in turn become less stable than rod-shaped orthorhombic crystals above 40 °C. Interestingly, dynamic light scattering, hydrogen-ion titrations and isothermal titration calorimetry reveal that lysozyme-HEPES interactions were found to be weakly attractive and exothermic. Our findings indicate that additives of salting-in type can represent an important factor controlling the fate of metastable protein-rich microdroplets relevant to drug formulations, femtosecond crystallography, and potential implications in protein-driven cytoplasmic compartmentalization.
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Affiliation(s)
- Aisha Fahim
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, TX 76129, USA
| | - Onofrio Annunziata
- Department of Chemistry and Biochemistry, Texas Christian University, 2950 W. Bowie St., Sid Richardson Bldg. #438, Fort Worth, TX 76129, USA..
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de Martino MT, Tonin F, Bloemendal VRLJ, Hanefeld U, Rutjes FPJT, van Hest JCM. Compartmentalized cross-linked enzyme nano aggregates ( c-CLE nAs) toward pharmaceutical transformations. RSC Adv 2021; 11:21857-21861. [PMID: 35478789 PMCID: PMC9034143 DOI: 10.1039/d1ra04332c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 06/14/2021] [Indexed: 12/13/2022] Open
Abstract
A new immobilization strategy using compartmentalized nanoreactors is herein reported for two biocatalytic processes: (1) N-acetylneuraminate lyase (NAL) is internalized in NAL-c-CLEnAs and used in a continuous flow aldol condensation of N-acetyl-d-mannosamine with sodium pyruvate to N-acetylneuraminic acid; (2) two hydroxysteroid dehydrogenases (HSDH) 7α- and 7β-HSDH are incorporated in c-CLEnAs and used in a two-step cascade batch synthesis of ursodeoxycholic acid (UDCA). The versatile use of c-CLEnA demonstrates that this immobilization methodology is a valuable addition to the toolbox of synthetic chemists.
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Affiliation(s)
- M Teresa de Martino
- Department of Chemical Engineering & Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology PO Box 513 5600 MB Eindhoven The Netherlands
| | - Fabio Tonin
- Department of Biotechnology, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Victor R L J Bloemendal
- Department of Chemical Engineering & Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology PO Box 513 5600 MB Eindhoven The Netherlands .,Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Ulf Hanefeld
- Department of Biotechnology, Delft University of Technology Van der Maasweg 9 2629 HZ Delft The Netherlands
| | - Floris P J T Rutjes
- Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen The Netherlands
| | - Jan C M van Hest
- Department of Chemical Engineering & Chemistry, Institute for Complex Molecular Systems, Eindhoven University of Technology PO Box 513 5600 MB Eindhoven The Netherlands
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14
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Abstract
Recent years have witnessed a growing interest in the use of biocatalysts in flow reactors. This merging combines the high selectivity and mild operation conditions typical of biocatalysis with enhanced mass transfer and resource efficiency associated to flow chemistry. Additionally, it provides a sound environment to emulate Nature by mimicking metabolic pathways in living cells and to produce goods through the systematic organization of enzymes towards efficient cascade reactions. Moreover, by enabling the combination of enzymes from different hosts, this approach paves the way for novel pathways. The present review aims to present recent developments within the scope of flow chemistry involving multi-enzymatic cascade reactions. The types of reactors used are briefly addressed. Immobilization methodologies and strategies for the application of the immobilized biocatalysts are presented and discussed. Key aspects related to the use of whole cells in flow chemistry are presented. The combination of chemocatalysis and biocatalysis is also addressed and relevant aspects are highlighted. Challenges faced in the transition from microscale to industrial scale are presented and discussed.
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15
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Hong J, Jung D, Park S, Oh Y, Oh KK, Lee SH. Immobilization of laccase via cross-linked enzyme aggregates prepared using genipin as a natural cross-linker. Int J Biol Macromol 2021; 169:541-550. [PMID: 33358952 DOI: 10.1016/j.ijbiomac.2020.12.136] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 12/17/2020] [Accepted: 12/17/2020] [Indexed: 01/19/2023]
Abstract
Genipin is a nontoxic natural cross-linker that was successfully used to prepare cross-linked enzyme aggregates (CLEAs) of Trametes versicolor laccase. The recovered activity of CLEAs was influenced by the co-solvent type, genipin concentration, cross-linking time, preparation pH, and bovine serum albumin (BSA; amino group feeder) concentration. The characteristics of CLEAs prepared using genipin under optimal conditions (genipin-BSA-CLEAs) were compared with those of typical CLEAs prepared using glutaraldehyde or dextran polyaldehyde. Genipin-BSA-CLEAs were nano-sized (average diameter, approximately 700 nm), had a ball-like shape, showed a narrow size distribution, and exhibited the highest substrate affinity among the prepared CLEAs. The thermal stability of genipin-BSA-CLEAs was 6.8-fold higher than that of free laccase, and their pH stability was also much higher than that of free laccase in the tested range. Additionally, genipin-BSA-CLEAs retained 85% of their initial activity after 10 cycles of reuse. Particularly, genipin-BSA-CLEAs showed higher thermal and pH stability than CLEAs that were cross-linked using glutaraldehyde. Therefore, genipin represents an alternative to toxic compounds such as glutaraldehyde during cross-linking to prepare CLEAs.
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Affiliation(s)
- Jiyeon Hong
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea
| | - Dahun Jung
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea
| | - Saerom Park
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea
| | - Yujin Oh
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea
| | - Kyeong Keun Oh
- Department of Chemical Engineering, Dankook University, Yongin 16890, Gyeonggi, South Korea
| | - Sang Hyun Lee
- Department of Biological Engineering, Konkuk University, Seoul 05029, South Korea.
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16
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Sivo A, Galaverna RDS, Gomes GR, Pastre JC, Vilé G. From circular synthesis to material manufacturing: advances, challenges, and future steps for using flow chemistry in novel application area. REACT CHEM ENG 2021. [DOI: 10.1039/d0re00411a] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We review the emerging use of flow technologies for circular chemistry and material manufacturing, highlighting advances, challenges, and future directions.
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Affiliation(s)
- Alessandra Sivo
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- IT-20131 Milano
- Italy
| | | | | | | | - Gianvito Vilé
- Department of Chemistry
- Materials and Chemical Engineering “Giulio Natta”
- Politecnico di Milano
- IT-20131 Milano
- Italy
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17
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Su J, Chen H, Xu Z, Wang S, Liu X, Wang L, Huang X. Near-Infrared-Induced Contractile Proteinosome Microreactor with a Fast Control on Enzymatic Reactions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:41079-41087. [PMID: 32816446 DOI: 10.1021/acsami.0c11635] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Inspired by the compartmentalized structure of cells, self-regulating responsive hollow microcapsules are highly desirable for the modulation of enzymatic reactions. Here, we report a strategy to fabricate gold nanorod embedded proteinosomes by covalently grafting gold nanorods onto the surface of proteinosomes. The excellent photothermal conversion efficiency of the embedded gold nanorod and the thermal phase transition of the grafted PNIPAAm allow the constructed hybrid proteinosomes to show reversible contraction behaviors triggered by near-infrared light with the molecular weight cutoff of the membrane decreased to ca. 50 kDa, and importantly, the contraction frequency of the constructed proteinosomes could be as fast as 1 min and last for at least 15 cycles. Subsequently, the effective encapsulation of three cascade enzymes into the proteinosomes realizes the construction of a near-infrared responsive microreactor that allows control of the cascade reaction by near-infrared illumination, thereby enabling reversible on and off of the enzymatic reaction. Such microcapsule-based reactors demonstrate the potential to alter the membrane molecular weight cutoff, and it is believed that the development of such responsive microcapsules will have great potential for studying cellular responses and provide a platform for future applications in biosensing and drug delivery.
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Affiliation(s)
- Jiaojiao Su
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Haixu Chen
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Zhijun Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Shengliang Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Xiaoman Liu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Lei Wang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
| | - Xin Huang
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China
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18
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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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