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Costa IO, Rios NS, Lima PJM, Gonçalves LRB. Synthesis of organic-inorganic hybrid nanoflowers of lipases from Candida antarctica type B (CALB) and Thermomyces lanuginosus (TLL): Improvement of thermal stability and reusability. Enzyme Microb Technol 2023; 163:110167. [DOI: 10.1016/j.enzmictec.2022.110167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/20/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
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2
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Bellou MG, Gkantzou E, Skonta A, Moschovas D, Spyrou K, Avgeropoulos A, Gournis D, Stamatis H. Development of 3D Printed Enzymatic Microreactors for Lipase-Catalyzed Reactions in Deep Eutectic Solvent-Based Media. MICROMACHINES 2022; 13:mi13111954. [PMID: 36422383 PMCID: PMC9693471 DOI: 10.3390/mi13111954] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 05/28/2023]
Abstract
In this study, 3D printing technology was exploited for the development of immobilized enzyme microreactors that could be used for biocatalytic processes in Deep Eutectic Solvent (DES)-based media. 3D-printed polylactic acid (PLA) microwell plates or tubular microfluidic reactors were modified with polyethylenimine (PEI) and lipase from Candida antarctica (CALB) was covalently immobilized in the interior of each structure. DESs were found to have a negligible effect on the activity and stability of CALB, and the system proved highly stable and reusable in the presence of DESs for the hydrolysis of p-nitrophenyl butyrate (p-NPB). A kinetic study under flow conditions revealed an enhancement of substrate accessibility in the presence of Betaine: Glycerol (Bet:Gly) DES, while the system was not severely affected by diffusion limitations. Incubation of microreactors in 100% Bet:Gly preserved the enzyme activity by 53% for 30 days of storage at 60 °C, while the buffer-stored sample had already been deactivated. The microfluidic enzyme reactor was efficiently used for the trans-esterification of ethyl ferulate (EF) with glycerol towards the production of glyceryl ferulate (GF), known for its antioxidant potential. The biocatalytic process under continuous flow conditions exhibited 23 times higher productivity than the batch reaction system. This study featured an effective and robust biocatalytic system with immobilized lipase that can be used both in hydrolytic and synthetic applications, while further optimization is expected to upgrade the microreactor system performance.
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Affiliation(s)
- Myrto G. Bellou
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
| | - Elena Gkantzou
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
| | - Anastasia Skonta
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
| | - Dimitrios Moschovas
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Konstantinos Spyrou
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Apostolos Avgeropoulos
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Dimitrios Gournis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece
| | - Haralambos Stamatis
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece
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Skarpalezos D, Tzani A, Avraam E, Politidis C, Kyritsis A, Detsi A. Synthesis, structure-properties relationship and biodegradability assessment of novel protic ionic liquids. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117754] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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4
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Liang X, Liu Y, Wen K, Jiang W, Li Q. Immobilized enzymes in inorganic hybrid nanoflowers for biocatalytic and biosensing applications. J Mater Chem B 2021; 9:7597-7607. [PMID: 34596205 DOI: 10.1039/d1tb01476e] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Enzyme immobilization has been accepted as a powerful technique to solve the drawbacks of free enzymes such as limited activity, stability and recyclability under harsh conditions. Different from the conventional immobilization methods, enzyme immobilization in inorganic hybrid nanoflowers was executed in a biomimetic mineralization manner with the advantages of mild reaction conditions, and thus it was beneficial to obtain ideal biocatalysts with superior characteristics. The key factors influencing the formation of enzyme-based inorganic hybrid nanoflowers were elucidated to obtain a deeper insight into the mechanism for achieving unique morphology and improved properties of immobilized enzymes. To date, immobilized enzymes in inorganic hybrid nanoflowers have been successfully applied in biocatalysis for preparing medical intermediates, biodiesel and biomedical polymers, and solving the environmental or food industrial issues such as the degradation of toxic dyes, pollutants and allergenic proteins. Moreover, they could be used in the development of various biosensors, which provide a promising platform to detect toxic substances in the environment or biomarkers associated with various diseases. We hope that this review will promote the fundamental research and wide applications of immobilized enzymes in inorganic hybrid nanoflowers for expanding biocatalysis and biosensing.
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Affiliation(s)
- Xiao Liang
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Yong Liu
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Kai Wen
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
| | - Wei Jiang
- Academy of Medical Science, Zhengzhou University, Zhengzhou 450052, China.
| | - Quanshun Li
- Key Laboratory for Molecular Enzymology and Engineering of Ministry of Education, School of Life Sciences, Jilin University, Changchun 130012, China.
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5
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Dube S, Rawtani D. Understanding intricacies of bioinspired organic-inorganic hybrid nanoflowers: A quest to achieve enhanced biomolecules immobilization for biocatalytic, biosensing and bioremediation applications. Adv Colloid Interface Sci 2021; 295:102484. [PMID: 34358991 DOI: 10.1016/j.cis.2021.102484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2021] [Revised: 06/29/2021] [Accepted: 07/02/2021] [Indexed: 01/10/2023]
Abstract
The immobilization of biomolecules has been a subject of interest for scientists for a long time. The organic-inorganic hybrid nanoflowers are a new class of nanostructures that act as a host platform for the immobilization of such biomolecules. It provides better practical applicability to these functional biomolecules while also providing superior activity and reusability when catalysis is involved. These nanostructures have a versatile and straightforward synthesis process and also exhibit enzyme mimicking activity in many cases. However, this facile synthesis involves many intricacies that require in-depth analysis to fully attain its potential as an immobilization technique. A complete account of all the factors involving the synthesis process optimisation is essential to be studied to make it commercially viable. This paper explores all the different aspects of hybrid nanoflowers which sets them apart from the conventional immobilization techniques while also giving an overview of its wide range of applications in industries.
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Al-Maqdi KA, Bilal M, Alzamly A, Iqbal HMN, Shah I, Ashraf SS. Enzyme-Loaded Flower-Shaped Nanomaterials: A Versatile Platform with Biosensing, Biocatalytic, and Environmental Promise. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1460. [PMID: 34072882 PMCID: PMC8227841 DOI: 10.3390/nano11061460] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 02/05/2023]
Abstract
As a result of their unique structural and multifunctional characteristics, organic-inorganic hybrid nanoflowers (hNFs), a newly developed class of flower-like, well-structured and well-oriented materials has gained significant attention. The structural attributes along with the surface-engineered functional entities of hNFs, e.g., their size, shape, surface orientation, structural integrity, stability under reactive environments, enzyme stabilizing capability, and organic-inorganic ratio, all significantly contribute to and determine their applications. Although hNFs are still in their infancy and in the early stage of robust development, the recent hike in biotechnology at large and nanotechnology in particular is making hNFs a versatile platform for constructing enzyme-loaded/immobilized structures for different applications. For instance, detection- and sensing-based applications, environmental- and sustainability-based applications, and biocatalytic and biotransformation applications are of supreme interest. Considering the above points, herein we reviewed current advances in multifunctional hNFs, with particular emphasis on (1) critical factors, (2) different metal/non-metal-based synthesizing processes (i.e., (i) copper-based hNFs, (ii) calcium-based hNFs, (iii) manganese-based hNFs, (iv) zinc-based hNFs, (v) cobalt-based hNFs, (vi) iron-based hNFs, (vii) multi-metal-based hNFs, and (viii) non-metal-based hNFs), and (3) their applications. Moreover, the interfacial mechanism involved in hNF development is also discussed considering the following three critical points: (1) the combination of metal ions and organic matter, (2) petal formation, and (3) the generation of hNFs. In summary, the literature given herein could be used to engineer hNFs for multipurpose applications in the biosensing, biocatalysis, and other environmental sectors.
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Affiliation(s)
- Khadega A. Al-Maqdi
- Department of Chemistry, College of Science, UAE University, Al Ain P. O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China;
| | - Ahmed Alzamly
- Department of Chemistry, College of Science, UAE University, Al Ain P. O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
| | - Hafiz M. N. Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Monterrey 64849, Mexico;
| | - Iltaf Shah
- Department of Chemistry, College of Science, UAE University, Al Ain P. O. Box 15551, United Arab Emirates; (K.A.A.-M.); (A.A.)
| | - Syed Salman Ashraf
- Department of Chemistry, College of Arts and Sciences, Khalifa University, Abu Dhabi P. O. Box 127788, United Arab Emirates
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Gkantzou E, Chatzikonstantinou AV, Fotiadou R, Giannakopoulou A, Patila M, Stamatis H. Trends in the development of innovative nanobiocatalysts and their application in biocatalytic transformations. Biotechnol Adv 2021; 51:107738. [PMID: 33775799 DOI: 10.1016/j.biotechadv.2021.107738] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 03/20/2021] [Accepted: 03/20/2021] [Indexed: 12/22/2022]
Abstract
The ever-growing demand for cost-effective and innocuous biocatalytic transformations has prompted the rational design and development of robust biocatalytic tools. Enzyme immobilization technology lies in the formation of cooperative interactions between the tailored surface of the support and the enzyme of choice, which result in the fabrication of tremendous biocatalytic tools with desirable properties, complying with the current demands even on an industrial level. Different nanoscale materials (organic, inorganic, and green) have attracted great attention as immobilization matrices for single or multi-enzymatic systems. Aiming to unveil the potentialities of nanobiocatalytic systems, we present distinct immobilization strategies and give a thorough insight into the effect of nanosupports specific properties on the biocatalysts' structure and catalytic performance. We also highlight the development of nanobiocatalysts for their incorporation in cascade enzymatic processes and various types of batch and continuous-flow reactor systems. Remarkable emphasis is given on the application of such nanobiocatalytic tools in several biocatalytic transformations including bioremediation processes, biofuel production, and synthesis of bioactive compounds and fine chemicals for the food and pharmaceutical industry.
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Affiliation(s)
- Elena Gkantzou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Alexandra V Chatzikonstantinou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Renia Fotiadou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Archontoula Giannakopoulou
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece
| | - Michaela Patila
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece.
| | - Haralambos Stamatis
- Laboratory of Biotechnology, Department of Biological Applications and Technology, University of Ioannina, Ioannina, Greece.
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8
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Kist JA, Zhao H, Mitchell-Koch KR, Baker GA. The study and application of biomolecules in deep eutectic solvents. J Mater Chem B 2021; 9:536-566. [DOI: 10.1039/d0tb01656j] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Deep eutectic solvents offer stimulating possibilities for biomolecular stabilization and manipulation, biocatalysis, bioextraction, biomass processing, and drug delivery and therapy.
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Affiliation(s)
- Jennifer A. Kist
- Department of Chemistry
- University of Missouri-Columbia
- Columbia
- USA
| | - Hua Zhao
- Department of Chemistry and Biochemistry
- University of Northern Colorado
- Greeley
- USA
| | | | - Gary A. Baker
- Department of Chemistry
- University of Missouri-Columbia
- Columbia
- USA
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Bjelić A, Hočevar B, Grilc M, Novak U, Likozar B. A review of sustainable lignocellulose biorefining applying (natural) deep eutectic solvents (DESs) for separations, catalysis and enzymatic biotransformation processes. REV CHEM ENG 2020. [DOI: 10.1515/revce-2019-0077] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Conventional biorefinery processes are complex, engineered and energy-intensive, where biomass fractionation, a key functional step for the production of biomass-derived chemical substances, demands industrial organic solvents and harsh, environmentally harmful reaction conditions. There is a timely, clear and unmet economic need for a systematic, robust and affordable conversion method technology to become greener, sustainable and cost-effective. In this perspective, deep eutectic solvents (DESs) have been envisaged as the most advanced novel polar liquids that are entirely made of natural, molecular compounds that are capable of an association via hydrogen bonding interactions. DES has quickly emerged in various application functions thanks to a formulations’ simple preparation. These molecules themselves are biobased, renewable, biodegradable and eco-friendly. The present experimental review is providing the state of the art topical overview of trends regarding the employment of DESs in investigated biorefinery-related techniques. This review covers DESs for lignocellulosic component isolation, applications as (co)catalysts and their functionality range in biocatalysis. Furthermore, a special section of the DESs recyclability is included. For DESs to unlock numerous new (reactive) possibilities in future biorefineries, the critical estimation of its complexity in the reaction, separation, or fractionation medium should be addressed more in future studies.
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Affiliation(s)
- Ana Bjelić
- Department of Catalysis and Chemical Reaction Engineering , National Institute of Chemistry , Hajdrihova 19 , 1001 Ljubljana , Slovenia
| | - Brigita Hočevar
- Department of Catalysis and Chemical Reaction Engineering , National Institute of Chemistry , Hajdrihova 19 , 1001 Ljubljana , Slovenia
| | - Miha Grilc
- Department of Catalysis and Chemical Reaction Engineering , National Institute of Chemistry , Hajdrihova 19 , 1001 Ljubljana , Slovenia
| | - Uroš Novak
- Department of Catalysis and Chemical Reaction Engineering , National Institute of Chemistry , Hajdrihova 19 , 1001 Ljubljana , Slovenia
| | - Blaž Likozar
- Department of Catalysis and Chemical Reaction Engineering , National Institute of Chemistry , Hajdrihova 19 , 1001 Ljubljana , Slovenia
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10
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Tzani A, Vaitsis C, Kritsi E, Smiljkovic M, Sokovic M, Zoumpoulakis P, Detsi A. Green synthesis of bis-(β-dicarbonyl)-methane derivatives and biological evaluation as putative anticandidial agents. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128276] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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11
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Li Y, Wu H, Su Z. Enzyme-based hybrid nanoflowers with high performances for biocatalytic, biomedical, and environmental applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213342] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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12
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Papadopoulou A, Zarafeta D, Galanopoulou AP, Stamatis H. Enhanced Catalytic Performance of Trichoderma reesei Cellulase Immobilized on Magnetic Hierarchical Porous Carbon Nanoparticles. Protein J 2020; 38:640-648. [PMID: 31549278 DOI: 10.1007/s10930-019-09869-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cellulase from Trichoderma reesei was immobilized by covalent or non-covalent binding onto magnetic hierarchical porous carbon (MHPC) nanomaterials. The immobilization yield and the enzyme activity were higher when covalent immobilization approach was followed. The covalent immobilization approach leads to higher immobilization yield (up to 96%) and enzyme activity (up to 1.35 U mg-1) compared to the non-covalent cellulase binding. The overall results showed that the thermal, storage and operational stability of the immobilized cellulase was considerably improved compared to the free enzyme. The immobilized cellulose catalyzed the hydrolysis of microcrystalline cellulose up to 6 consecutive successive reaction cycles, with a total operation time of 144 h at 50 °C. The half-life time of the immobilized enzyme in deep eutectic solvents-based media was up to threefold higher compared to the soluble enzyme. The increased pH and temperature tolerance of the immobilized cellulase, as well as the increased operational stability in aqueous and deep eutectic solvents-based media indicate that the use of MHPCs as immobilization nanosupport could expand the catalytic performance of cellulolytic enzymes in various reaction conditions.
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Affiliation(s)
- Athena Papadopoulou
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110, Ioannina, Greece
| | - Dimitra Zarafeta
- Institute of Chemical Biology, Medicinal Chemistry and Biotechnology, National Hellenic Research Foundation, 11635, Athens, Greece
| | | | - Haralambos Stamatis
- Laboratory of Biotechnology, Department of Biological Applications and Technologies, University of Ioannina, 45110, Ioannina, Greece.
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13
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Synthesis of novel non-toxic naphthenic and benzoic acid ionic liquids. Structure-properties relationship and evaluation of their biodegradability potential. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111927] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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Fotiadou R, Patila M, Hammami MA, Enotiadis A, Moschovas D, Tsirka K, Spyrou K, Giannelis EP, Avgeropoulos A, Paipetis A, Gournis D, Stamatis H. Development of Effective Lipase-Hybrid Nanoflowers Enriched with Carbon and Magnetic Nanomaterials for Biocatalytic Transformations. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E808. [PMID: 31142000 PMCID: PMC6632025 DOI: 10.3390/nano9060808] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 05/19/2019] [Accepted: 05/23/2019] [Indexed: 01/10/2023]
Abstract
In the present study, hybrid nanoflowers (HNFs) based on copper (II) or manganese (II) ions were prepared by a simple method and used as nanosupports for the development of effective nanobiocatalysts through the immobilization of lipase B from Pseudozyma antarctica. The hybrid nanobiocatalysts were characterized by various techniques including scanning electron microscopy (SEM), energy dispersion spectroscopy (EDS), X-ray diffraction (XRD), Raman spectroscopy, and Fourier transform infrared spectroscopy (FTIR). The effect of the addition of carbon-based nanomaterials, namely graphene oxide and carbon nanotubes, as well as magnetic nanoparticles such as maghemite, on the structure, catalytic activity, and operational stability of the hybrid nanobiocatalysts was also investigated. In all cases, the addition of nanomaterials during the preparation of HNFs increased the catalytic activity and the operational stability of the immobilized biocatalyst. Lipase-based magnetic nanoflowers were effectively applied for the synthesis of tyrosol esters in non-aqueous media, such as organic solvents, ionic liquids, and environmental friendly deep eutectic solvents. In such media, the immobilized lipase preserved almost 100% of its initial activity after eight successive catalytic cycles, indicating that these hybrid magnetic nanoflowers can be applied for the development of efficient nanobiocatalytic systems.
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Affiliation(s)
- Renia Fotiadou
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece.
| | - Michaela Patila
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece.
| | - Mohamed Amen Hammami
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA.
| | - Apostolos Enotiadis
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA.
| | - Dimitrios Moschovas
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Kyriaki Tsirka
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Konstantinos Spyrou
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Emmanuel P Giannelis
- Department of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA.
| | - Apostolos Avgeropoulos
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Alkiviadis Paipetis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Dimitrios Gournis
- Department of Materials Science and Engineering, University of Ioannina, 45110 Ioannina, Greece.
| | - Haralambos Stamatis
- Biotechnology Laboratory, Department of Biological Applications and Technologies, University of Ioannina, 45110 Ioannina, Greece.
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15
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Yang B, Liu J, Liu Z, Wang Y, Cai J, Peng L. Preparation of chitosan/Co-Fe-layered double hydroxides and its performance for removing 2,4-dichlorophenol. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:3814-3822. [PMID: 30539399 DOI: 10.1007/s11356-018-3886-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 11/27/2018] [Indexed: 06/09/2023]
Abstract
Chitosan/Co-Fe-layered double hydroxides (CS/LDHs) were prepared by coprecipitation method, which is a kind of composite material with excellent properties. The structure of CS/LDHs was characterized by SEM, FTIR, and XRD, which proved that chitosan (CS) was successfully induced into hydrotalcite and CS/LDHs still possess the structural characteristics of hydrotalcite. The adsorption of 2,4-dichlorophenol (2,4-DCP) was studied with CS/LDHs and LDHs as adsorbent separately. The activity of immobilized laccase (L-CS/LDHs) with CS/LDHs as carrier is significantly better than that of the one (L-LDHs) using LDHs as carrier. Under the optimum conditions (pH = 6, 55 °C, 48 h), L-CS/LDHs exhibited better removal performance for 2,4-DCP (81.53%, 100 mg/L) than LDHs (63.55%); the removal of 2,4-DCP by L-CS/LDHs is excellent, exceeding 97% as its initial concentration below 60 mg/L. It includes the catalytic action of laccase and dechlorination of Fe3+ and Co2+, and the adsorption can be ignored under the optimal conditions. After 5 cycles, it maintained 67% (L-CS/LDHs) and 54% (L-LDHs) of the original removal.
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Affiliation(s)
- Bo Yang
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China.
| | - Jun Liu
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China
| | - Zhiguo Liu
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China
| | - Yacheng Wang
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China
| | - Jiaming Cai
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China
| | - Lingjie Peng
- College of Environment and Safety Engineering, Qingdao University of Science & Technology, Qingdao, 266042, Shandong, China
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16
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Li P, Zhao P, Liu W, Jiang Y, Wang W, Bao L, Jin Y, Li X. Determination of common ginsenosides in Kang'ai injection by aqueous two-phase extraction with deep eutectic solvents and HPLC-UV/DAD. Microchem J 2018. [DOI: 10.1016/j.microc.2017.11.007] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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17
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