51
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Abd El-Rahim WM, Abdel Azeiz AZ, Moawad H, Sadowsky MJ. Identification and characterization of two peroxidases from Lichtheimia corymbifera. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2019. [DOI: 10.1016/j.bcab.2019.01.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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52
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Preface. Methods Enzymol 2019; 627:xv-xix. [DOI: 10.1016/s0076-6879(19)30400-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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53
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Gajewska B, Raccio S, Rodriguez KJ, Bruns N. Chlorophyll derivatives as catalysts and comonomers for atom transfer radical polymerizations. Polym Chem 2019. [DOI: 10.1039/c8py01492b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Derivatives of chlorophyll were investigated as both catalysts and comonomers to generate well-defined polymers with narrow dispersities under AGET ATRP conditions.
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Affiliation(s)
| | | | | | - Nico Bruns
- Adolphe Merkle Institute
- 1700 Fribourg
- Switzerland
- Department of Pure and Applied Chemistry
- University of Strathclyde
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54
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Vignali V, S. Miranda B, Lodoso-Torrecilla I, van Nisselroy CAJ, Hoogenberg BJ, Dantuma S, Hollmann F, de Vries JW, Warszawik EM, Fischer R, Commandeur U, van Rijn P. Biocatalytically induced surface modification of the tobacco mosaic virus and the bacteriophage M13. Chem Commun (Camb) 2019; 55:51-54. [DOI: 10.1039/c8cc08042a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A one-step laccase induced free radical oxidation of the tobacco mosaic virus and bacteriophage M13 led to acrylate-functionalized viruses with customizable properties.
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55
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Khlupova ME, Vasil’eva IS, Shumakovich GP, Morozova OV, Zaitseva EA, Chertkov VA, Shestakova AK, Kisin AV, Yaropolov AI. Multicopper Oxidase-Catalyzed Biotransformation of Dihydroquercetin. ACTA ACUST UNITED AC 2018. [DOI: 10.3103/s002713141805005x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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56
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Meng Z, Chao Y, Zhou X, Liang C, Liu J, Zhang R, Cheng L, Yang K, Pan W, Zhu M, Liu Z. Near-Infrared-Triggered in Situ Gelation System for Repeatedly Enhanced Photothermal Brachytherapy with a Single Dose. ACS NANO 2018; 12:9412-9422. [PMID: 30148960 DOI: 10.1021/acsnano.8b04544] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Brachytherapy by the placing of therapeutic radioactive materials into or near tumors has been widely used in a clinical setting for cancer treatment. The efficacy of brachytherapy, however, may often be limited by the radiation resistance for tumor cells located in the hypoxic region of a solid tumor as well as the non-optimal distribution of radioactivity inside the tumor. Herein, a hybrid hydrogel system is developed by using 131I-labeled copper sulfide (CuS/131I) nanoparticles as the photothermal- and radiotherapeutic agent, poly(ethylene glycol) double acrylates (PEGDA) as the polymeric matrix, and 2,2'-azobis[2-(2-imidazolin-2-yl) propane] dihydrochloride (AIPH) as the thermal initiator to realize light-induced in situ gelation in the tumor for the combined photothermal brachytherapy. After local injection, CuS/131I nanoparticles under irradiation by the 915 nm near-infrared (NIR) laser would produce heat to mildly raise the tumor temperature and initiate the polymerization of PEGDA by activating the AIPH thermal initiator, effectively fixing CuS/131I by in situ gelation within the tumor for the long term. By the repeated NIR irradiation of tumors, the tumor hypoxia could be relieved for a much-longer term, resulting in a significant synergistic photothermal brachytherapeutic effect to eliminate tumors. This work presents an efficient type of NIR-responsive nanoparticle-encapsulated hydrogel system, inspiring the design of a form of brachytherapy.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Wei Pan
- College of Chemistry, Chemical Engineering and Materials Science , Shandong Normal University , Jinan 250014 , China
| | - Meifang Zhu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering , Donghua University , Shanghai 201620 , China
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57
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Rodriguez KJ, Gajewska B, Pollard J, Pellizzoni MM, Fodor C, Bruns N. Repurposing Biocatalysts to Control Radical Polymerizations. ACS Macro Lett 2018; 7:1111-1119. [PMID: 35632946 DOI: 10.1021/acsmacrolett.8b00561] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Reversible-deactivation radical polymerizations (controlled radical polymerizations) have revolutionized and revitalized the field of polymer synthesis. While enzymes and other biologically derived catalysts have long been known to initiate free radical polymerizations, the ability of peroxidases, hemoglobin, laccases, enzyme-mimetics, chlorophylls, heme, red blood cells, bacteria, and other biocatalysts to control or initiate reversible-deactivation radical polymerizations has only been described recently. Here, the scope of biocatalytic atom transfer radical polymerizations (bioATRP), enzyme-initiated reversible addition-fragmentation chain transfer radical polymerizations (bioRAFT), biocatalytic organometallic-mediated radical polymerizations (bioOMRP), and biocatalytic reversible complexation mediated polymerizations (bioRCMP) is critically reviewed, and the potential of these reactions for the environmentally friendly synthesis of precision polymers, for the preparation of functional nanostructures, for the modification of surfaces, and for biosensing is discussed.
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Affiliation(s)
- Kyle J. Rodriguez
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Bernadetta Gajewska
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Jonas Pollard
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Michela M. Pellizzoni
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Csaba Fodor
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, 1700 Fribourg, Switzerland
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58
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Khlupova ME, Morozova OV, Vasil'eva IS, Shumakovich GP, Pashintseva NV, Kovalev LI, Shishkin SS, Chertkov VA, Shestakova AK, Kisin AV, Yaropolov AI. Laccase-Catalyzed Heterocoupling of Dihydroquercetin and p-Aminobenzoic Acid: Effect of the Reaction Product on Cultured Cells. BIOCHEMISTRY (MOSCOW) 2018; 83:992-1001. [PMID: 30208835 DOI: 10.1134/s0006297918080102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Derivatization of the natural flavonoid dihydroquercetin with p-aminobenzoic acid was carried out in an ethyl acetate/citric buffer biphasic system using laccase from the fungus Trametes hirsuta. The main reaction product yield was ~68 mol %. The product was characterized by 1H NMR, 13C NMR, and liquid chromatography-mass spectroscopy, and its structure was elucidated. The reaction product affected viability of cultured human rhabdomyosarcoma cells (RD cell line) in a dose-dependent manner and, therefore, can be of interest to pharmaceutical industry.
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Affiliation(s)
- M E Khlupova
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - O V Morozova
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - I S Vasil'eva
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - G P Shumakovich
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - N V Pashintseva
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - L I Kovalev
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - S S Shishkin
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia
| | - V A Chertkov
- Lomonosov Moscow State University, Faculty of Chemistry, Moscow, 119899, Russia.
| | - A K Shestakova
- State Research Institute of Chemistry and Technology of Organoelement Compounds, Moscow, 105118, Russia.
| | - A V Kisin
- State Research Institute of Chemistry and Technology of Organoelement Compounds, Moscow, 105118, Russia
| | - A I Yaropolov
- Research Center of Biotechnology, Bach Institute of Biochemistry, Russian Academy of Sciences, Moscow, 119071, Russia.
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59
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Zhang Y, Serrano-Luginbühl S, Kissner R, Milojević-Rakić M, Bajuk-Bogdanović D, Ćirić-Marjanović G, Wang Q, Walde P. Enzymatic Synthesis of Highly Electroactive Oligoanilines from a p-Aminodiphenylamine/Aniline Mixture with Anionic Vesicles as Templates. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:9153-9166. [PMID: 29989829 DOI: 10.1021/acs.langmuir.8b00953] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oligoanilines with characteristic properties of the electrically conductive emeraldine salt form of polyaniline (PANI-ES) are promising molecules for various applications. A mixture of such oligoanilines can be obtained, for example, enzymatically under mild conditions from the linear aniline dimer p-aminodiphenylamine (PADPA) with hydrogen peroxide (H2O2) and low amounts of horseradish peroxidase (HRP) in an aqueous pH = 4.3 suspension of anionic vesicles formed from AOT, the sodium salt of bis(2-ethylhexyl)sulfosuccinate. However, the simultaneous formation of undesired side products containing phenazine-type units or oxygen atoms is unsatisfactory. We have found that this situation can be improved considerably by using a mixture of PADPA and aniline instead of PADPA only but otherwise nearly identical conditions. The PANI-ES-like oligoaniline products that are obtained from the PADPA and aniline mixture were not only found to have much lower contents of phenazine-type units and not contain oxygen atoms but also were shown to be more electroactive in cyclic voltammetry measurements than the PANI-ES-like products obtained from PADPA only. The AOT vesicle suspension remained stable without product precipitation during and after the entire reaction so that it could be analyzed by in situ UV/visible/near-infrared, in situ electron paramagnetic resonance, and in situ Raman spectroscopy measurements. These measurements were complemented with ex situ high-performance liquid chromatography analyses of the deprotonated and reduced products formed from mixtures of PADPA and either fully or partially deuterated aniline. On the basis of the results obtained, a reaction mechanism is proposed for explaining this improved HRP-triggered, vesicle-assisted synthesis of electroactive PANI-ES-like products. The oligomeric products obtained can be further used, without additional special workup, for example, to coat electrodes for their possible application in biosensor devices.
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Affiliation(s)
- Ya Zhang
- Laboratory of Polymer Chemistry, Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , CH-8093 Zurich , Switzerland
- Key Laboratory of Science and Technology of Eco-Textile , Jiangnan University , Lihu Avenue 1800 , 214122 Wuxi , China
| | - Sandra Serrano-Luginbühl
- Laboratory of Polymer Chemistry, Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , CH-8093 Zurich , Switzerland
| | - Reinhard Kissner
- Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences , ETH Zürich , Vladimir-Prelog-Weg 2 , CH-8093 Zurich , Switzerland
| | - Maja Milojević-Rakić
- Faculty of Physical Chemistry , University of Belgrade , Studentski trg 12-16 , 11158 Belgrade , Serbia
| | - Danica Bajuk-Bogdanović
- Faculty of Physical Chemistry , University of Belgrade , Studentski trg 12-16 , 11158 Belgrade , Serbia
| | - Gordana Ćirić-Marjanović
- Faculty of Physical Chemistry , University of Belgrade , Studentski trg 12-16 , 11158 Belgrade , Serbia
| | - Qiang Wang
- Key Laboratory of Science and Technology of Eco-Textile , Jiangnan University , Lihu Avenue 1800 , 214122 Wuxi , China
| | - Peter Walde
- Laboratory of Polymer Chemistry, Department of Materials , ETH Zürich , Vladimir-Prelog-Weg 5 , CH-8093 Zurich , Switzerland
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60
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Abstract
The enzyme-mediated polymerization of bioactive phenolic compounds, such as the flavonoid rutin, has gained interest due to the enhanced physico-chemical and biological properties of the products, which increases their potential application as a nutraceutical. In this work, the influence of enzyme activity on rutin oligomerization was evaluated in reactions with low (1000 U/L) and high (10,000 U/L) initial laccase activities. For both reactions, high molecular weight oligomer fractions showed better properties compared to lower weight oligomers. Products of the reaction with low laccase activity exhibited thermal stability and antioxidant potential similar to control reaction, but led to higher inhibitory activity of xanthine oxidase and apparent aqueous solubility. Oligomers obtained in the reaction with high laccase activity showed better apparent aqueous solubility but decreased biological activities and stability. Their low antioxidant activity was correlated with a decreased phenolic content, which could be attributed to the formation of several bonds between rutin molecules.
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61
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Dong J, Fernández‐Fueyo E, Hollmann F, Paul CE, Pesic M, Schmidt S, Wang Y, Younes S, Zhang W. Biocatalytic Oxidation Reactions: A Chemist's Perspective. Angew Chem Int Ed Engl 2018; 57:9238-9261. [PMID: 29573076 PMCID: PMC6099261 DOI: 10.1002/anie.201800343] [Citation(s) in RCA: 271] [Impact Index Per Article: 45.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Indexed: 01/25/2023]
Abstract
Oxidation chemistry using enzymes is approaching maturity and practical applicability in organic synthesis. Oxidoreductases (enzymes catalysing redox reactions) enable chemists to perform highly selective and efficient transformations ranging from simple alcohol oxidations to stereoselective halogenations of non-activated C-H bonds. For many of these reactions, no "classical" chemical counterpart is known. Hence oxidoreductases open up shorter synthesis routes based on a more direct access to the target products. The generally very mild reaction conditions may also reduce the environmental impact of biocatalytic reactions compared to classical counterparts. In this Review, we critically summarise the most important recent developments in the field of biocatalytic oxidation chemistry and identify the most pressing bottlenecks as well as promising solutions.
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Affiliation(s)
- JiaJia Dong
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Elena Fernández‐Fueyo
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Frank Hollmann
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Caroline E. Paul
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Milja Pesic
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Sandy Schmidt
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Yonghua Wang
- School of Food Science and EngineeringSouth China University of TechnologyGuangzhou510640P. R. China
| | - Sabry Younes
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
| | - Wuyuan Zhang
- Department of BiotechnologyDelft University of Technologyvan der Maasweg 92629HZDelftThe Netherlands
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62
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Liarou E, Whitfield R, Anastasaki A, Engelis NG, Jones GR, Velonia K, Haddleton DM. Copper-Mediated Polymerization without External Deoxygenation or Oxygen Scavengers. Angew Chem Int Ed Engl 2018; 57:8998-9002. [PMID: 29757482 PMCID: PMC6055709 DOI: 10.1002/anie.201804205] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/11/2018] [Indexed: 12/15/2022]
Abstract
As a method for overcoming the challenge of rigorous deoxygenation in copper-mediated controlled radical polymerization processes [e.g., atom-transfer radical polymerization (ATRP)], reported here is a simple Cu0 -RDRP (RDRP=reversible deactivation radical polymerization) system in the absence of external additives (e.g., reducing agents, enzymes etc.). By simply adjusting the headspace of the reaction vessel, a wide range of monomers, namely acrylates, methacrylates, acrylamides, and styrene, can be polymerized in a controlled manner to yield polymers with low dispersities, near-quantitative conversions, and high end-group fidelity. Significantly, this approach is scalable (ca. 125 g), tolerant to elevated temperatures, compatible with both organic and aqueous media, and does not rely on external stimuli which may limit the monomer pool. The robustness and versatility of this methodology is further demonstrated by the applicability to other copper-mediated techniques, including conventional ATRP and light-mediated approaches.
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Affiliation(s)
- Evelina Liarou
- Department of ChemistryUniversity of WarwickLibrary RoadCoventryCV4 7ALUK
| | - Richard Whitfield
- Department of ChemistryUniversity of WarwickLibrary RoadCoventryCV4 7ALUK
| | - Athina Anastasaki
- Department of ChemistryUniversity of WarwickLibrary RoadCoventryCV4 7ALUK
| | | | - Glen R. Jones
- Department of ChemistryUniversity of WarwickLibrary RoadCoventryCV4 7ALUK
| | - Kelly Velonia
- Department of Materials Science and TechnologyUniversity of CreteUniversity Campus Voutes71003HeraklionCreteGreece
| | - David M. Haddleton
- Department of ChemistryUniversity of WarwickLibrary RoadCoventryCV4 7ALUK
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63
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Danielson AP, Van-Kuren DB, Bornstein JP, Kozuszek CT, Berberich JA, Page RC, Konkolewicz D. Investigating the Mechanism of Horseradish Peroxidase as a RAFT-Initiase. Polymers (Basel) 2018; 10:E741. [PMID: 30960666 PMCID: PMC6403633 DOI: 10.3390/polym10070741] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Revised: 06/28/2018] [Accepted: 07/03/2018] [Indexed: 12/25/2022] Open
Abstract
A detailed mechanistic and kinetic study of enzymatically initiated RAFT polymerization is performed by combining enzymatic assays and polymerization kinetics analysis. Horseradish peroxidase (HRP) initiated RAFT polymerization of dimethylacrylamide (DMAm) was studied. This polymerization was controlled by 2-(propionic acid)ylethyl trithiocarbonate (PAETC) in the presence of H₂O₂ as a substrate and acetylacetone (ACAC) as a mediator. In general, well controlled polymers with narrow molecular weight distributions and good agreement between theoretical and measured molecular weights are consistently obtained by this method. Kinetic and enzymatic assay analyses show that HRP loading accelerates the reaction, with a critical concentration of ACAC needed to effectively generate polymerization initiating radicals. The PAETC RAFT agent is required to control the reaction, although the RAFT agent also has an inhibitory effect on enzymatic performance and polymerization. Interestingly, although H₂O₂ is the substrate for HRP there is an optimal concentration near 1 mM, under the conditions studies, with higher or lower concentrations leading to lower polymerization rates and poorer enzymatic activity. This is explained through a competition between the H₂O₂ acting as a substrate, but also an inhibitor of HRP at high concentrations.
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Affiliation(s)
- Alex P Danielson
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
| | - Dylan Bailey Van-Kuren
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
| | - Joshua P Bornstein
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
| | - Caleb T Kozuszek
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
| | - Jason A Berberich
- Department of Chemical, Paper and Biomedical Engineering Miami University 650 E High St, Oxford, OH 45056, USA.
| | - Richard C Page
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
| | - Dominik Konkolewicz
- Department of Chemistry and Biochemistry Miami University 651 E High St, Oxford, OH 45056, USA.
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64
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Dong J, Fernández-Fueyo E, Hollmann F, Paul CE, Pesic M, Schmidt S, Wang Y, Younes S, Zhang W. Biokatalytische Oxidationsreaktionen - aus der Sicht eines Chemikers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201800343] [Citation(s) in RCA: 84] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- JiaJia Dong
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Elena Fernández-Fueyo
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Frank Hollmann
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Caroline E. Paul
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Milja Pesic
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Sandy Schmidt
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Yonghua Wang
- School of Food Science and Engineering; South China University of Technology; Guangzhou 510640 P. R. China
| | - Sabry Younes
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
| | - Wuyuan Zhang
- Department of Biotechnology; Delft University of Technology; van der Maasweg 9 2629HZ Delft Niederlande
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65
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Liu Y, Wu HC, Bhokisham N, Li J, Hong KL, Quan DN, Tsao CY, Bentley WE, Payne GF. Biofabricating Functional Soft Matter Using Protein Engineering to Enable Enzymatic Assembly. Bioconjug Chem 2018; 29:1809-1822. [PMID: 29745651 PMCID: PMC7045599 DOI: 10.1021/acs.bioconjchem.8b00197] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Biology often provides the inspiration for functional soft matter, but biology can do more: it can provide the raw materials and mechanisms for hierarchical assembly. Biology uses polymers to perform various functions, and biologically derived polymers can serve as sustainable, self-assembling, and high-performance materials platforms for life-science applications. Biology employs enzymes for site-specific reactions that are used to both disassemble and assemble biopolymers both to and from component parts. By exploiting protein engineering methodologies, proteins can be modified to make them more susceptible to biology's native enzymatic activities. They can be engineered with fusion tags that provide (short sequences of amino acids at the C- and/or N- termini) that provide the accessible residues for the assembling enzymes to recognize and react with. This "biobased" fabrication not only allows biology's nanoscale components (i.e., proteins) to be engineered, but also provides the means to organize these components into the hierarchical structures that are prevalent in life.
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Affiliation(s)
| | - Hsuan-Chen Wu
- Department of Biochemical Science and Technology , National Taiwan University , Taipei City , Taiwan
| | | | | | - Kai-Lin Hong
- Department of Biochemical Science and Technology , National Taiwan University , Taipei City , Taiwan
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66
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Liarou E, Whitfield R, Anastasaki A, Engelis NG, Jones GR, Velonia K, Haddleton DM. Copper-Mediated Polymerization without External Deoxygenation or Oxygen Scavengers. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804205] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Evelina Liarou
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
| | - Richard Whitfield
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
| | - Athina Anastasaki
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
| | - Nikolaos G. Engelis
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
| | - Glen R. Jones
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
| | - Kelly Velonia
- Department of Materials Science and Technology; University of Crete; University Campus Voutes 71003 Heraklion Crete Greece
| | - David M. Haddleton
- Department of Chemistry; University of Warwick; Library Road Coventry CV4 7AL UK
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67
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Jankowska D, Heck T, Schubert M, Yerlikaya A, Weymuth C, Rentsch D, Schober I, Richter M. Enzymatic Synthesis of Lignin-Based Concrete Dispersing Agents. Chembiochem 2018. [DOI: 10.1002/cbic.201800064] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dagmara Jankowska
- Laboratory for Biointerfaces; Empa-Swiss Federal Laboratories for Materials Science and Technology; Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - Tobias Heck
- Laboratory for Biointerfaces; Empa-Swiss Federal Laboratories for Materials Science and Technology; Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | - Mark Schubert
- Laboratory for Applied Wood Materials; Empa-Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Alpaslan Yerlikaya
- Laboratory for Biointerfaces; Empa-Swiss Federal Laboratories for Materials Science and Technology; Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
| | | | - Daniel Rentsch
- Laboratory for Functional Polymers; Empa-Swiss Federal Laboratories for Materials Science and Technology; Überlandstrasse 129 8600 Dübendorf Switzerland
| | - Irene Schober
- Sika Technology AG; Tüffenwies 16 8048 Zürich Switzerland
| | - Michael Richter
- Laboratory for Biointerfaces; Empa-Swiss Federal Laboratories for Materials Science and Technology; Lerchenfeldstrasse 5 9014 St. Gallen Switzerland
- Present address: Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB; Bio-, Electro- and Chemocatalysis BioCat, Straubing Branch; Schulgasse 11a 94351 Straubing Germany
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68
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Singhal A, Chauhan SMS. Free Radical Copolymerization of Acrylamide andN-Vinylpyrrolidone Catalyzed by Iron(III)porphyrins in the Presence of Ionic Liquids. ORG PREP PROCED INT 2018. [DOI: 10.1080/00304948.2018.1462076] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Anchal Singhal
- Department of Chemistry, University of Delhi, Delhi 110 007, India
| | - S. M. S. Chauhan
- Department of Chemistry, University of Delhi, Delhi 110 007, India
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69
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Kiratitanavit W, Bruno FF, Kumar J, Nagarajan R. Facile enzymatic preparation of fluorescent conjugated polymers of phenols and their application in sensing. J Appl Polym Sci 2018. [DOI: 10.1002/app.46496] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
| | - Ferdinando F. Bruno
- US Army Natick Soldier Research Development and Engineering Center, RDECOM; Natick Massachusetts 01760
| | - Jayant Kumar
- Center for Advanced Materials and HEROES Initiative, University of Massachusetts; Lowell Massachusetts 01854
- Department of Physics; University of Massachusetts; Lowell Massachusetts 01854
| | - Ramaswamy Nagarajan
- Department of Plastics Engineering; University of Massachusetts; Lowell Massachusetts 01854
- Center for Advanced Materials and HEROES Initiative, University of Massachusetts; Lowell Massachusetts 01854
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70
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Wang X, Chen S, Wu D, Wu Q, Wei Q, He B, Lu Q, Wang Q. Oxidoreductase-Initiated Radical Polymerizations to Design Hydrogels and Micro/Nanogels: Mechanism, Molding, and Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2018; 30:e1705668. [PMID: 29504155 DOI: 10.1002/adma.201705668] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 11/16/2017] [Indexed: 06/08/2023]
Abstract
Due to their 3D cross-linked networks and tunable physicochemical properties, polymer hydrogels with different sizes are applied widely in tissue engineering, drug-delivery systems, pollution regulation, ionic conducting electrolytes, agricultural drought-resistance, cosmetics, and the food industry. Novel, environmentally friendly, and efficient oxidoreductase-initiated radical polymerizations to design hydrogels and micro/nanogels have gained increasing attention. Herein, the recent advances on the use of novel enzyme-initiated systems for hydrogel polymerization, including the mechanisms, and molding of polymeric and hybrid-polymeric networks are reviewed. Preliminary progress related to interfacial enzymatic polymerization for the generation of hybrid micro/nanogels is introduced as an emerging initiating approach. In addition, certain biological applications in tissue engineering, bioimaging, and therapy are demonstrated step by step. Finally, some perspectives on the safety profile of enzymatic formed hydrogels, new enzymatic systems, and potential theranostic applications are discussed.
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Affiliation(s)
- Xia Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Shuangshuang Chen
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Dongbei Wu
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qing Wu
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qingcong Wei
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Bin He
- Department of Control Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qinghua Lu
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
| | - Qigang Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai, 200092, P. R. China
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71
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Wang Z, Xu W, Fu Z, Jiang G, Wu J, Liu Z. Pluronic-Conjugated Enzyme Cascade for In Situ Oxidation in Biphasic Media. ChemCatChem 2018. [DOI: 10.1002/cctc.201701869] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Zheyu Wang
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 P.R. China
| | - Weina Xu
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 P.R. China
| | - Zhongwang Fu
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 P.R. China
| | - Guoqiang Jiang
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 P.R. China
| | - Jianzhong Wu
- Department of Chemical and Environmental Engineering; University of California; Riverside CA 92521 USA
| | - Zheng Liu
- Department of Chemical Engineering; Tsinghua University; Beijing 100084 P.R. China
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72
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Zhang Q, Lv Y, Liu M, Wang X, Mi Y, Wang Q. Nanoinitiator for enzymatic anaerobic polymerization and graft enhancement of gelatin-PAAM hydrogel. J Mater Chem B 2018; 6:1402-1409. [PMID: 32254425 DOI: 10.1039/c7tb03244g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
As an emerging method for mildly molding polymer hydrogel bioscaffolds, the enzymatically polymerized system is mainly based on the screening of various oxidoreductases to produce radicals, but the design of multifunctional nanoinitiators to facilitate hydrogel performance remains challenging. Here, we utilize N-hydroxyimide-modified silica nanoparticles as nanoinitiators to simultaneously trigger glucose oxidase anaerobic polymerization and nanoparticle-grafting enhancement of the gelatin-polyacrylamide (PAAM) hydrogel. The enzyme-nanoinitiator system produced nitrogen radicals, which were further converted into carbon radicals via GOx-catalyzed glucose reduction, as confirmed by electron paramagnetic resonance (EPR) analysis. Our stretchable hydrogel has a 12-fold increased fracture energy relative to traditional hydrogel due to grafting enhancement by the nanoinitiator. The temperature-dependent physical crosslinking of gelatin endowed our hydrogel facile printing ability. Cytotoxicity assay and 3D cell culture demonstrated the low toxicity of our hydrogel. As the first example of the use of nanoinitiators for enzymatic polymerization, this work provides a biocompatible platform to prepare or print hydrogel bioscaffolds with the required mechanical strength.
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Affiliation(s)
- Qi Zhang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
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73
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Yarman A. Electrosynthesized Molecularly Imprinted Polymer for Laccase Using the Inactivated Enzyme as the Target. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11413] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Aysu Yarman
- Molecular Biotechnology, Faculty of Science; Turkish-German University; Istanbul Turkey
- Institute of Biochemistry and Biology; University of Potsdam; Potsdam Germany
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74
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Efficiency of a fungal laccase in 3,4-ethylenedioxythiophene polymerization. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0396-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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75
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Zhang X, Wu H, Zhang L, Sun Q. Horseradish peroxidase-mediated synthesis of an antioxidant gallic acid-g-chitosan derivative and its preservation application in cherry tomatoes. RSC Adv 2018; 8:20363-20371. [PMID: 35541661 PMCID: PMC9080819 DOI: 10.1039/c8ra02632g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 05/23/2018] [Indexed: 11/21/2022] Open
Abstract
Horseradish peroxidase-mediated grafting of gallic acid to chitosan with good antioxidant capacity for preservation of cherry tomatoes.
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Affiliation(s)
- Xiao Zhang
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao 266109
- People's Republic of China
| | - Hao Wu
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao 266109
- People's Republic of China
| | - Linan Zhang
- Marine Science and Engineering College
- Qingdao Agricultural University
- Qingdao 266109
- People's Republic of China
| | - Qingjie Sun
- College of Food Science and Engineering
- Qingdao Agricultural University
- Qingdao 266109
- People's Republic of China
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76
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Divandari M, Pollard J, Dehghani E, Bruns N, Benetti EM. Controlling Enzymatic Polymerization from Surfaces with Switchable Bioaffinity. Biomacromolecules 2017; 18:4261-4270. [PMID: 29086550 DOI: 10.1021/acs.biomac.7b01313] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The affinity of surfaces toward proteins is found to be a key parameter to govern the synthesis of polymer brushes by surface-initiated biocatalytic atom transfer radical polymerization (SI-bioATRP). While the "ATRPase" hemoglobin (Hb) stimulates only a relatively slow growth of protein repellent brushes, the synthesis of thermoresponsive grafts can be regulated by switching the polymer's attraction toward proteins across its lower critical solution temperature (LCST). Poly(N-isopropylacrylamide) (PNIPAM) brushes are synthesized in discrete steps of thickness at temperatures above LCST, while the biocatalyst layer is refreshed at T < LCST. Multistep surface-initiated biocatalytic ATRP demonstrates a high degree of control, results in high chain end group fidelity and enables the synthesis of multiblock copolymer brushes under fully aqueous conditions. The activity of Hb can be further modulated by tuning the accessibility of the heme pocket within the protein. Hence, the multistep polymerization is accelerated at acid pH, where the enzyme undergoes a transition from its native to a molten globule conformation. The controlled synthesis of polymer brushes by multistep SI-bioATRP highlights how a biocatalytic synthesis of grafted polymer films can be precisely controlled through the modulation of the polymer's interfacial physicochemical properties, in particular of the affinity of the surface toward proteins. This is not only of importance to gain a predictive understanding of surface-confined enzymatic polymerizations, but also represents a new way to translate bioadhesion into a controlled functionalization of materials.
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Affiliation(s)
- Mohammad Divandari
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
| | - Jonas Pollard
- Adolphe Merkle Institute , Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Ella Dehghani
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
| | - Nico Bruns
- Adolphe Merkle Institute , Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland
| | - Edmondo M Benetti
- Laboratory for Surface Science and Technology, Department of Materials, ETH Zürich , Vladimir-Prelog-Weg 5, CH-8093 Zürich, Switzerland
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77
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Liu J, Pu H, Liu S, Kan J, Jin C. Synthesis, characterization, bioactivity and potential application of phenolic acid grafted chitosan: A review. Carbohydr Polym 2017; 174:999-1017. [DOI: 10.1016/j.carbpol.2017.07.014] [Citation(s) in RCA: 159] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Revised: 07/03/2017] [Accepted: 07/06/2017] [Indexed: 12/17/2022]
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78
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Karaki N, Aljawish A, Muniglia L, Bouguet-Bonnet S, Leclerc S, Paris C, Jasniewski J, Humeau-Virot C. Functionalization of pectin with laccase-mediated oxidation products of ferulic acid. Enzyme Microb Technol 2017. [DOI: 10.1016/j.enzmictec.2017.05.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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79
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McCombs NL, Smirnova T, Ghiladi RA. Oxidation of Pyrrole by Dehaloperoxidase-Hemoglobin: Chemoenzymatic Synthesis of Pyrrolin-2-Ones. Catal Sci Technol 2017; 7:3104-3118. [PMID: 29158890 PMCID: PMC5693384 DOI: 10.1039/c7cy00781g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of oxidoreductases as biocatalysts in the syntheses of functionalized, monomeric pyrroles has been a challenge owing to, among a number of factors, undesired polypyrrole formation. Here, we have investigated the ability of dehaloperoxidase (DHP), the coelomic hemoglobin from the terebellid polychaete Amphitrite ornata, to catalyze the H2O2-dependent oxidation of pyrroles as a new class of substrate for this enzyme. Substrate oxidation was observed for all compounds employed (pyrrole, N-methylpyrrole, 2-methylpyrrole, 3-methylpyrrole and 2,5-dimethylpyrrole) under both aerobic and anaerobic conditions. Using pyrrole as a representative substrate, only a single oxidation product, 4-pyrrolin-2-one, was observed, and notably without formation of polypyrrole. Reactivity could be initiated from all three biologically relevant oxidation states for this catalytic globin: ferric, ferrous and oxyferrous. Isotope labeling studies determined that the O-atom incorporated into the 4-pyrrolin-2-one product was derived exclusively from H2O2, indicative of a peroxygenase mechanism. Consistent with this observation, single- and double-mixing stopped-flow UV-visible spectroscopic studies supported Compound I, but not Compounds ES or II, as the catalytically-relevant ferryl intermediate involved in pyrrole oxidation. Electrophilic addition of the ferryl oxygen to pyrrole is proposed as the mechanism of O-atom transfer. The results demonstrate the breadth of chemical reactivity afforded by dehaloperoxidase, and provide further evidence for establishing DHP as a multifunctional globin with practical applications as a biocatalyst.
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Affiliation(s)
- Nikolette L McCombs
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695-8204 USA. Tel: +1 919 513 0680
| | - Tatyana Smirnova
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695-8204 USA. Tel: +1 919 513 0680
| | - Reza A Ghiladi
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina, 27695-8204 USA. Tel: +1 919 513 0680
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80
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Wang Y, Lan D, Durrani R, Hollmann F. Peroxygenases en route to becoming dream catalysts. What are the opportunities and challenges? Curr Opin Chem Biol 2017; 37:1-9. [DOI: 10.1016/j.cbpa.2016.10.007] [Citation(s) in RCA: 145] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 10/12/2016] [Accepted: 10/13/2016] [Indexed: 01/09/2023]
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81
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82
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Electrochemical Study of Trametes Versicolor Laccase Compatibility to Different Polyphenolic Substrates. CHEMOSENSORS 2017. [DOI: 10.3390/chemosensors5010009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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83
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Daoud Attieh M, Zhao Y, Elkak A, Falcimaigne-Cordin A, Haupt K. Enzyme-Initiated Free-Radical Polymerization of Molecularly Imprinted Polymer Nanogels on a Solid Phase with an Immobilized Radical Source. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201612667] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Mira Daoud Attieh
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
- Université Libanaise; Laboratoire de Valorisation des Ressources Naturelles et Produits de Santé, Cité Universitaire Rafic Hariri; Hadath Lebanon
| | - Yi Zhao
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
| | - Assem Elkak
- Université Libanaise; Laboratoire de Valorisation des Ressources Naturelles et Produits de Santé, Cité Universitaire Rafic Hariri; Hadath Lebanon
| | - Aude Falcimaigne-Cordin
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
| | - Karsten Haupt
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
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84
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Daoud Attieh M, Zhao Y, Elkak A, Falcimaigne-Cordin A, Haupt K. Enzyme-Initiated Free-Radical Polymerization of Molecularly Imprinted Polymer Nanogels on a Solid Phase with an Immobilized Radical Source. Angew Chem Int Ed Engl 2017; 56:3339-3343. [DOI: 10.1002/anie.201612667] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Indexed: 01/10/2023]
Affiliation(s)
- Mira Daoud Attieh
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
- Université Libanaise; Laboratoire de Valorisation des Ressources Naturelles et Produits de Santé, Cité Universitaire Rafic Hariri; Hadath Lebanon
| | - Yi Zhao
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
| | - Assem Elkak
- Université Libanaise; Laboratoire de Valorisation des Ressources Naturelles et Produits de Santé, Cité Universitaire Rafic Hariri; Hadath Lebanon
| | - Aude Falcimaigne-Cordin
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
| | - Karsten Haupt
- Sorbonne Universités-Université de Technologie de Compiègne; CNRS Enzyme and Cell Engineering Laboratory; CS 60319 60203 Compiègne cedex France
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85
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Ye Y, Xiao L, Bin He, Zhang Q, Nie T, Yang X, Wu D, Cheng H, Li P, Wang Q. Oxygen-tuned nanozyme polymerization for the preparation of hydrogels with printable and antibacterial properties. J Mater Chem B 2017; 5:1518-1524. [PMID: 32264642 DOI: 10.1039/c6tb03317b] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanozymes merge nanotechnology with biology and provide a lower cost and higher stability options, compared to that of natural enzymes. However, nanozyme catalyzed polymerization under physiological conditions is still a big challenge due to heavy oxygen inhibition. In this study, the simple glucose oxidase system can effectively adjust oxygen concentration and generate hydrogen peroxide, which assists in the realization of nanozyme-catalyzed polymerization. The nanozyme based hydrogel is printable due to its mild preparation with gradually increased viscosity. The antibacterial performance is ascribed to the in situ generated hydroxyl radical via the reaction of the bound nanozyme and glucose.
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Affiliation(s)
- Yuemei Ye
- School of Chemistry Science and Engineering, Tongji University, Shanghai 200092, China.
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86
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Munk L, Punt AM, Kabel MA, Meyer AS. Laccase catalyzed grafting of –N–OH type mediators to lignin via radical–radical coupling. RSC Adv 2017. [DOI: 10.1039/c6ra26106j] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Lignin can be functionalized with –N–OH type mediators via laccase catalysis. Three radical coupling mechanisms are suggested for this enzymatic “hetero-functionalization” which may be a new route for biomass lignin upgrading.
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Affiliation(s)
- L. Munk
- Center for BioProcess Engineering
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
| | - A. M. Punt
- Laboratory of Food Chemistry
- Wageningen University
- Wageningen
- The Netherlands
| | - M. A. Kabel
- Laboratory of Food Chemistry
- Wageningen University
- Wageningen
- The Netherlands
| | - A. S. Meyer
- Center for BioProcess Engineering
- Department of Chemical and Biochemical Engineering
- Technical University of Denmark
- DK-2800 Kgs. Lyngby
- Denmark
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87
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Muñiz-Mouro A, Oliveira IM, Gullón B, Lú-Chau TA, Moreira MT, Lema JM, Eibes G. Comprehensive investigation of the enzymatic oligomerization of esculin by laccase in ethanol : water mixtures. RSC Adv 2017. [DOI: 10.1039/c7ra06972c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The oligomerization of esculin by laccase in aqueous medium resulted in a precipitate fraction with excellent antioxidant properties.
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Affiliation(s)
- Abel Muñiz-Mouro
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Isabel M. Oliveira
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Beatriz Gullón
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Thelmo A. Lú-Chau
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - María Teresa Moreira
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Juan M. Lema
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
| | - Gemma Eibes
- Dept. of Chemical Engineering
- Institute of Technology
- Universidade de Santiago de Compostela
- 15782 Santiago de Compostela
- Spain
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88
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Ćirić-Marjanović G, Milojević-Rakić M, Janošević-Ležaić A, Luginbühl S, Walde P. Enzymatic oligomerization and polymerization of arylamines: state of the art and perspectives. CHEMICKE ZVESTI 2016; 71:199-242. [PMID: 28775395 PMCID: PMC5495875 DOI: 10.1007/s11696-016-0094-3] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 09/16/2016] [Indexed: 11/28/2022]
Abstract
The literature concerning the oxidative oligomerization and polymerization of various arylamines, e.g., aniline, substituted anilines, aminonaphthalene and its derivatives, catalyzed by oxidoreductases, such as laccases and peroxidases, in aqueous, organic, and mixed aqueous organic monophasic or biphasic media, is reviewed. An overview of template-free as well as template-assisted enzymatic syntheses of oligomers and polymers of arylamines is given. Special attention is paid to mechanistic aspects of these biocatalytic processes. Because of the nontoxicity of oxidoreductases and their high catalytic efficiency, as well as high selectivity of enzymatic oligomerizations/polymerizations under mild conditions-using mainly water as a solvent and often resulting in minimal byproduct formation-enzymatic oligomerizations and polymerizations of arylamines are environmentally friendly and significantly contribute to a "green" chemistry of conducting and redox-active oligomers and polymers. Current and potential future applications of enzymatic polymerization processes and enzymatically synthesized oligo/polyarylamines are discussed.
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Affiliation(s)
- Gordana Ćirić-Marjanović
- Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia
| | - Maja Milojević-Rakić
- Faculty of Physical Chemistry, University of Belgrade, Studentski Trg 12-16, 11158 Belgrade, Serbia
| | - Aleksandra Janošević-Ležaić
- Department of Physical Chemistry and Instrumental Methods, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Sandra Luginbühl
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
| | - Peter Walde
- Department of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, 8093 Zurich, Switzerland
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89
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Schürings MP, Nevskyi O, Eliasch K, Michel AK, Liu B, Pich A, Böker A, Von Plessen G, Wöll D. Diffusive Motion of Linear Microgel Assemblies in Solution. Polymers (Basel) 2016; 8:E413. [PMID: 30974691 PMCID: PMC6432013 DOI: 10.3390/polym8120413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Revised: 11/08/2016] [Accepted: 11/21/2016] [Indexed: 11/17/2022] Open
Abstract
Due to the ability of microgels to rapidly contract and expand in response to external stimuli, assemblies of interconnected microgels are promising for actuation applications, e.g., as contracting fibers for artificial muscles. Among the properties determining the suitability of microgel assemblies for actuation are mechanical parameters such as bending stiffness and mobility. Here, we study the properties of linear, one-dimensional chains of poly(N-vinylcaprolactam) microgels dispersed in water. They were fabricated by utilizing wrinkled surfaces as templates and UV-cross-linking the microgels. We image the shapes of the chains on surfaces and in solution using atomic force microscopy (AFM) and fluorescence microscopy, respectively. In solution, the chains are observed to execute translational and rotational diffusive motions. Evaluation of the motions yields translational and rotational diffusion coefficients and, from the translational diffusion coefficient, the chain mobility. The microgel chains show no perceptible bending, which yields a lower limit on their bending stiffness.
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Affiliation(s)
- Marco-Philipp Schürings
- DWI-Leibniz Institut für Interaktive Materialien e.V., Forckenbeckstr. 50, 52074 Aachen, Germany.
- Lehrstuhl für Makromolekulare Materialien und Oberflächen, Forckenbeckstr. 50, 52074 Aachen, Germany.
| | - Oleksii Nevskyi
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
| | - Kamill Eliasch
- Institute of Physics (1A), RWTH Aachen University, 52056 Aachen, Germany.
| | - Ann-Katrin Michel
- Institute of Physics (1A), RWTH Aachen University, 52056 Aachen, Germany.
| | - Bing Liu
- DWI-Leibniz Institut für Interaktive Materialien e.V., Forckenbeckstr. 50, 52074 Aachen, Germany.
| | - Andrij Pich
- DWI-Leibniz Institut für Interaktive Materialien e.V., Forckenbeckstr. 50, 52074 Aachen, Germany.
- Functional and Interactive Polymers, RWTH Aachen University, Forckenbeckstr. 50, 52074 Aachen, Germany.
| | - Alexander Böker
- DWI-Leibniz Institut für Interaktive Materialien e.V., Forckenbeckstr. 50, 52074 Aachen, Germany.
- Lehrstuhl für Makromolekulare Materialien und Oberflächen, Forckenbeckstr. 50, 52074 Aachen, Germany.
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
- Fraunhofer-Institut für Angewandte Polymerforschung (IAP), Lehrstuhl für Polymermaterialien und Polymertechnologie, Universität Potsdam, Geiselbergstraße 69, 14476 Potsdam-Golm, Germany.
| | - Gero Von Plessen
- Institute of Physics (1A), RWTH Aachen University, 52056 Aachen, Germany.
| | - Dominik Wöll
- Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany.
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90
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Qiao L, Wang X, Gao Y, Wei Q, Hu W, Wu L, Li P, Zhu R, Wang Q. Laccase-mediated formation of mesoporous silica nanoparticle based redox stimuli-responsive hybrid nanogels as a multifunctional nanotheranostic agent. NANOSCALE 2016; 8:17241-17249. [PMID: 27722385 DOI: 10.1039/c6nr05943k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
In this work, we designed a new hybrid nanogel with redox responsive polymer gel shells and mesoporous silica nanoparticles (MSNs) cores via laccase-mediated radical polymerization. The successful coating of the responsive gel shells on the MSNs was confirmed by the morphology and increased diameters of the particles as determined by transmission electron microscopy (TEM) and dynamic light scattering (DLS). As observed by scanning transmission electron microscopy (STEM) and energy dispersive X-ray spectroscopy (EDS), the presence of the element S around the MSNs further confirmed the formation of the gel shell. When loaded with doxorubicin (DOX), these hybrid nanogels had a significantly higher cumulative DOX release in a reductive environment than that found under physiological conditions. The MSNs with mesoporous channels were loaded with perfluorohexane (PFH) for ultrasound imaging, which was enhanced by the presence of the elastic gel shells.
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Affiliation(s)
- Li Qiao
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Xia Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Yawei Gao
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Qingcong Wei
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Wen Hu
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
| | - Lei Wu
- Department of Ultrasound in Medicine Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai 200233, China
| | - Pei Li
- Department of Medical Ultrasound Shanghai Tenth People's Hospital of Tongji University, Shanghai 200072, China
| | - Rongrong Zhu
- School of Life Sciences and Technology, Tongji University, Shanghai 200092, China
| | - Qigang Wang
- School of Chemical Science and Engineering, Tongji University, Shanghai 200092, China.
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91
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Roberts JJ, Naudiyal P, Lim KS, Poole-Warren LA, Martens PJ. A comparative study of enzyme initiators for crosslinking phenol-functionalized hydrogels for cell encapsulation. Biomater Res 2016; 20:30. [PMID: 27713832 PMCID: PMC5050849 DOI: 10.1186/s40824-016-0077-z] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 09/01/2016] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Dityrosine crosslinking in proteins is a bioinspired method of forming hydrogels. This study compares oxidative enzyme initiators for their relative crosslinking efficiency and cytocompatibility using the same phenol group and the same material platform. Four common enzyme and enzyme-like oxidative initiators were probed for resulting material properties and cell viability post-encapsulation. RESULTS All four initiators can be used to form phenol-crosslinked hydrogels, however gelation rates are dependent on enzyme type, concentration, and the oxidant. Horseradish peroxidase (HRP) or hematin with hydrogen peroxide led to a more rapid poly (vinyl alcohol)-tyramine (PVA-Tyr) polymerization (10-60 min) because a high oxidant concentration was dissolved within the macromer solution at the onset of crosslinking, whereas laccase and tyrosinase require oxygen diffusion to crosslink phenol residues and therefore took longer to gel (2.5+ hours). The use of hydrogen peroxide as an oxidant reduced cell viability immediately post-encapsulation. Laccase- and tyrosinase-mediated encapsulation of cells resulted in higher cell viability immediately post-encapsulation and significantly higher cell proliferation after one week of culture. CONCLUSIONS Overall this study demonstrates that HRP/H2O2, hematin/H2O2, laccase, and tyrosinase can create injectable, in situ phenol-crosslinked hydrogels, however oxidant type and concentration are critical parameters to assess when phenol crosslinking hydrogels for cell-based applications.
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Affiliation(s)
- Justine J. Roberts
- Graduate School of Biomedical Engineering, UNSW Australia, Sydney, 2052 NSW Australia
| | - Pratibha Naudiyal
- Graduate School of Biomedical Engineering, UNSW Australia, Sydney, 2052 NSW Australia
| | - Khoon S. Lim
- Christchurch Regenerative Medicine and Tissue Engineering (CReaTE) Group, Department of Orthopaedic Surgery and Musculoskeletal Medicine, University of Otago Christchurch, Christchurch, 8011 New Zealand
| | - Laura A. Poole-Warren
- Graduate School of Biomedical Engineering, UNSW Australia, Sydney, 2052 NSW Australia
| | - Penny J. Martens
- Graduate School of Biomedical Engineering, UNSW Australia, Sydney, 2052 NSW Australia
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92
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Varga M, Berkesi O, Darula Z, May NV, Palágyi A. Structural characterization of allomelanin from black oat. PHYTOCHEMISTRY 2016; 130:313-20. [PMID: 27427433 DOI: 10.1016/j.phytochem.2016.07.002] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2016] [Revised: 06/05/2016] [Accepted: 07/02/2016] [Indexed: 05/13/2023]
Abstract
The brown to black coloration found in plants is due to the melanins, which have been relatively poorly investigated among the plant pigments. The aim of this work was to study the dark pigment extracted from the black oat hull with respect to composition and structure. Ultraviolet-visible (UV-Vis) spectroscopy, electron paramagnetic resonance (EPR) spectroscopy, matrix-assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) and Fourier transform infrared (FT-IR) spectroscopy were applied for the characterization of the pigment. UV-Vis spectroscopy revealed that the extracted material displays a broadband, structureless absorption profile a common feature of melanins. MALDI-TOF MS measurements demonstrated that oat melanin is a homopolymer built up from p-coumaric acid and consists mainly of low molecular weight (527-1499 Da) oligomers of 3-9 monomer units. The tetramer oligomer proved to be dominant. The results of the FT-IR analysis indicated that oat melanin is a fully conjugated aromatic system containing tetrasubstituted aromatic rings linked by CC coupling. The in vitro preparation of melanin from p-coumaric acid by horseradish peroxidase was performed for comparison. The resulting polymer consisted of oligomers of 4-9 monomer units similarly to those in oat melanin. However, the building blocks proved to be connected to each other via COC linkages in contrast with the CC linkages in oat melanin.
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Affiliation(s)
- Mónika Varga
- National Agricultural Research and Innovation Centre, Research Department of Field Crops, H-6726, Szeged, Alsókikötő sor 9, Hungary; Cereal Research Non-Profit Ltd., H-6726, Szeged, Alsókikötő sor 9, Hungary.
| | - Ottó Berkesi
- Department of Physical Chemistry and Materials Science, University of Szeged, Aradi Vt. 1., H-6720, Szeged, Hungary
| | - Zsuzsanna Darula
- Laboratory of Proteomics Research, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, H-6726, Szeged, Temesvári krt 62, Hungary
| | - Nóra Veronika May
- Institute of Organic Chemistry, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Magyar tudósok körútja 2, H-1117, Budapest, Hungary
| | - András Palágyi
- Cereal Research Non-Profit Ltd., H-6726, Szeged, Alsókikötő sor 9, Hungary
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93
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Zhou H, Wang X, Tang J, Yang YW. Surface Immobilization of pH-Responsive Polymer Brushes on Mesoporous Silica Nanoparticles by Enzyme Mimetic Catalytic ATRP for Controlled Cargo Release. Polymers (Basel) 2016; 8:E277. [PMID: 30974554 PMCID: PMC6432388 DOI: 10.3390/polym8080277] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Revised: 07/12/2016] [Accepted: 07/26/2016] [Indexed: 11/16/2022] Open
Abstract
Peroxidase mimetic catalytic atom transfer radical polymerization (ATRP) was first used to install tertiary amine-functionalized polymer brushes on the surface of mesoporous silica nanoparticles (MSNs) in a facile and highly efficient manner. Poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) brushes-grafted MSNs were fabricated by biocompatible deuterohemin-β-Ala-His-Thr-Val-Glu-Lys (DhHP-6)-catalyzed surface-initiated ATRP (SI-ATRP). The resulting organic⁻inorganic hybrid nanocarriers were fully characterized by Fourier transform-infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS), powder X-ray diffraction (XRD), SEM, TEM, Elemental analysis, Zeta-potential, and N₂ adsorption⁻desorption isotherms, which demonstrated the successful coating of pH-responsive polymers on the MSN surface. Rhodamine 6G (Rh6G) dyes were further loaded within the mesopores of this nanocarrier, and the release of Rh6G out of MSNs in a controlled fashion was achieved upon lowing the solution pH. The electrostatic repulsion of positively-charged tertiary ammonium of PDMAEMAs in acidic environments induced the stretching out of polymer brushes on MSN surfaces, thus opening the gates to allow cargo diffusion out of the mesopores of MSNs.
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Affiliation(s)
- Hang Zhou
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Xin Wang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Jun Tang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
| | - Ying-Wei Yang
- College of Chemistry, International Joint Research Laboratory of Nano-Micro Architecture Chemistry (NMAC), Jilin University, Changchun 130012, China.
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94
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Enzymatic modification of polysaccharides: Mechanisms, properties, and potential applications: A review. Enzyme Microb Technol 2016; 90:1-18. [DOI: 10.1016/j.enzmictec.2016.04.004] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 04/04/2016] [Accepted: 04/08/2016] [Indexed: 11/24/2022]
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95
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Britos CN, Trelles JA. Development of strong enzymatic biocatalysts for dye decolorization. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2016. [DOI: 10.1016/j.bcab.2016.06.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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96
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Malinowska KH, Nash MA. Enzyme- and affinity biomolecule-mediated polymerization systems for biological signal amplification and cell screening. Curr Opin Biotechnol 2016; 39:68-75. [DOI: 10.1016/j.copbio.2016.01.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Accepted: 01/23/2016] [Indexed: 11/28/2022]
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97
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Mokdad Bzeouich I, Mustapha N, Sassi A, Ghedira K, Ghoul M, Chebil L, Luis J, Chekir-Ghedira L. Oligoesculin fraction induces anti-tumor effects and promotes immune responses on B16-F10 mice melanoma. Tumour Biol 2016; 37:11349-58. [PMID: 26960691 DOI: 10.1007/s13277-016-5011-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Accepted: 03/01/2016] [Indexed: 12/31/2022] Open
Abstract
Laccase was used to enzymatically polymerize esculin. Oligoesculin fraction was obtained after ultrafiltration through a 5-kDa membrane. Several studies have been carried out to prove the effectiveness of natural substances such as immunomodulators to promote the anti-cancer activity in situ. The purpose of our report was to explore whether the anti-tumor potential of the oligoesculin fraction in vitro and in vivo is linked to its immunological mechanisms in melanoma-bearing mice. We revealed that oligoesculin fraction reduced B16-F10 proliferation and migration in vitro in a dose-related manner. Moreover, melanin synthesis and tyrosinase activity were inhibited in these melanoma cells in a concentration-dependent way. The anti-tumor potential of oligoesculin fraction was also assessed in vivo. Our results showed that intraperitoneal administration of oligoesculin fraction, at 50 mg/kg body weight (b.w.) for 21 days, reduced tumor size and weight with percentages of inhibition of 94 and 87 %, respectively. Oligoesculin fraction was effective in promoting lysosomal activity and nitric oxide (NO) production by peritoneal macrophages in tumor-implanted mice. In addition, the activities of natural killer (NK), cytotoxic T lymphocytes, and macrophages were significantly enhanced by oligoesculin fraction. These findings suggested that this polymer with its anti-tumor and immunomodulatory properties could be used for the treatment of melanoma.
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Affiliation(s)
- Imen Mokdad Bzeouich
- Laboratory of Cellular and Molecular Biology. Faculty of Dental Medicine, University of Monastir, Avicenne Street 5000, Monastir, Tunisia.,Unit of Bioactive and Natural Substances and Biotechnology UR12ES12. Faculty of Pharmacy, University of Monastir, Avicenne Street 5000, Monastir, Tunisia
| | - Nadia Mustapha
- Laboratory of Cellular and Molecular Biology. Faculty of Dental Medicine, University of Monastir, Avicenne Street 5000, Monastir, Tunisia.,Unit of Bioactive and Natural Substances and Biotechnology UR12ES12. Faculty of Pharmacy, University of Monastir, Avicenne Street 5000, Monastir, Tunisia
| | - Aicha Sassi
- Laboratory of Cellular and Molecular Biology. Faculty of Dental Medicine, University of Monastir, Avicenne Street 5000, Monastir, Tunisia.,Unit of Bioactive and Natural Substances and Biotechnology UR12ES12. Faculty of Pharmacy, University of Monastir, Avicenne Street 5000, Monastir, Tunisia
| | - Kamel Ghedira
- Unit of Bioactive and Natural Substances and Biotechnology UR12ES12. Faculty of Pharmacy, University of Monastir, Avicenne Street 5000, Monastir, Tunisia
| | - Mohamed Ghoul
- Laboratory of Biomolecular Engineering, National School of Agronomy and Food Industries, National Polytechnics Institute of Lorraine ENSAIA-INPL, 54505, Vandoeuvre les Nancy, France
| | - Latifa Chebil
- Laboratory of Biomolecular Engineering, National School of Agronomy and Food Industries, National Polytechnics Institute of Lorraine ENSAIA-INPL, 54505, Vandoeuvre les Nancy, France
| | - José Luis
- INSERM UMR 911-CRO2, Faculty of Pharmacy, Aix-Marseille University, Marseille, France
| | - Leila Chekir-Ghedira
- Laboratory of Cellular and Molecular Biology. Faculty of Dental Medicine, University of Monastir, Avicenne Street 5000, Monastir, Tunisia. .,Unit of Bioactive and Natural Substances and Biotechnology UR12ES12. Faculty of Pharmacy, University of Monastir, Avicenne Street 5000, Monastir, Tunisia.
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98
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Sun H, Huang W, Yang H, Zhang S. Co-immobilization of laccase and mediator through a self-initiated one-pot process for enhanced conversion of malachite green. J Colloid Interface Sci 2016; 471:20-28. [PMID: 26971065 DOI: 10.1016/j.jcis.2016.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 03/04/2016] [Accepted: 03/04/2016] [Indexed: 12/18/2022]
Abstract
Laccase is a green biocatalyst. It works with molecular oxygen and produces water as the only by-product. However, its practical application is far less than satisfactory due to the low stability/poor reusability of free laccase and the potential secondary pollution caused by dissolved mediators. To address those bottlenecks in laccase-based catalysis, a novel biocatalyst (Immo-LMS) was fabricated by simultaneously immobilizing both laccase and a mediator (acetylacetone, abbreviated as AA) into a hydrogel through the laccase-AA initiated polymerization. This self-initiated immobilization process avoided the forced conformational change of laccase in the passive embedding to pre-existing carriers. Resulting from the effective cooperation of laccase and AA, the Immo-LMS had the highest substrate conversion quantity to malachite green, followed by the sole immobilized laccase and the immobilized laccase with an external mediator. Besides the improved activity, the Immo-LMS showed enhanced stability. The good performance of the Immo-LMS suggests that the co-immobilization of laccase and mediator through the self-initiated one-pot process was a promising strategy for the immobilization of laccase, which is expected to be helpful to cut down the running cost as well as the potential toxicity that come from mediators in the practical application of laccase.
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Affiliation(s)
- Hongfei Sun
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Wenguang Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Hua Yang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Shujuan Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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99
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Chabungbam S, Loh G, Sahariah MB, Pal AR, Pandey R. Atomic level understanding of site-specific interactions in Polyaniline/TiO2 composite. Chem Phys Lett 2016. [DOI: 10.1016/j.cplett.2015.12.044] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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100
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Shoda SI, Uyama H, Kadokawa JI, Kimura S, Kobayashi S. Enzymes as Green Catalysts for Precision Macromolecular Synthesis. Chem Rev 2016; 116:2307-413. [PMID: 26791937 DOI: 10.1021/acs.chemrev.5b00472] [Citation(s) in RCA: 303] [Impact Index Per Article: 37.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present article comprehensively reviews the macromolecular synthesis using enzymes as catalysts. Among the six main classes of enzymes, the three classes, oxidoreductases, transferases, and hydrolases, have been employed as catalysts for the in vitro macromolecular synthesis and modification reactions. Appropriate design of reaction including monomer and enzyme catalyst produces macromolecules with precisely controlled structure, similarly as in vivo enzymatic reactions. The reaction controls the product structure with respect to substrate selectivity, chemo-selectivity, regio-selectivity, stereoselectivity, and choro-selectivity. Oxidoreductases catalyze various oxidation polymerizations of aromatic compounds as well as vinyl polymerizations. Transferases are effective catalysts for producing polysaccharide having a variety of structure and polyesters. Hydrolases catalyzing the bond-cleaving of macromolecules in vivo, catalyze the reverse reaction for bond forming in vitro to give various polysaccharides and functionalized polyesters. The enzymatic polymerizations allowed the first in vitro synthesis of natural polysaccharides having complicated structures like cellulose, amylose, xylan, chitin, hyaluronan, and chondroitin. These polymerizations are "green" with several respects; nontoxicity of enzyme, high catalyst efficiency, selective reactions under mild conditions using green solvents and renewable starting materials, and producing minimal byproducts. Thus, the enzymatic polymerization is desirable for the environment and contributes to "green polymer chemistry" for maintaining sustainable society.
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Affiliation(s)
- Shin-ichiro Shoda
- Department of Biomolecular Engineering, Graduate School of Engineering, Tohoku University , Aoba-ku, Sendai 980-8579, Japan
| | - Hiroshi Uyama
- Department of Applied Chemistry, Graduate School of Engineering, Osaka University , Yamadaoka, Suita 565-0871, Japan
| | - Jun-ichi Kadokawa
- Department of Chemistry, Biotechnology, and Chemical Engineering, Graduate School of Science and Engineering, Kagoshima University , Korimoto, Kagoshima 890-0065, Japan
| | - Shunsaku Kimura
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University , Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Shiro Kobayashi
- Center for Fiber & Textile Science, Kyoto Institute of Technology , Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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