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de Jesus CG, da Rocha Rodrigues R, Caseli L, Péres LO. Conducting polymers modulating the catalytic activity of urease in thin composite films. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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2
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Basri RS, Rahman RNZRA, Kamarudin NHA, Latip W, Ali MSM. Characterization of Carboxylic Acid Reductase from Mycobacterium phlei Immobilized onto Seplite LX120. Polymers (Basel) 2022; 14:polym14204375. [PMID: 36297953 PMCID: PMC9609965 DOI: 10.3390/polym14204375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 10/02/2022] [Accepted: 10/03/2022] [Indexed: 11/16/2022] Open
Abstract
A multi-domain oxidoreductase, carboxylic acid reductase (CAR), can catalyze the one-step reduction of carboxylic acid to aldehyde. This study aimed to immobilize bacterial CAR from a moderate thermophile Mycobacterium phlei (MpCAR). It was the first work reported on immobilizing bacterial CAR onto a polymeric support, Seplite LX120, via simple adsorption. Immobilization time and protein load were optimized for MpCAR immobilization. The immobilized MpCAR showed optimal activity at 60 °C and pH 9. It was stable over a wide range of temperatures (10 to 100 °C) and pHs (4–11), retaining more than 50% of its activity. The immobilized MpCAR also showed stability in polar solvents. The adsorption of MpCAR onto the support was confirmed by Scanning Electron Microscopy (SEM), Fourier-Transform Infrared (FTIR) spectroscopy, and Brunauer–Emmett–Teller (BET) analysis. The immobilized MpCAR could be stored for up to 6 weeks at 4 °C and 3 weeks at 25 °C. Immobilized MpCAR showed great operational stability, as 59.68% of its activity was preserved after 10 assay cycles. The immobilized MpCAR could also convert approximately 2.6 mM of benzoic acid to benzaldehyde at 60 °C. The successfully immobilized MpCAR on Seplite LX120 exhibited improved properties that benefit green industrial processes.
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Affiliation(s)
- Rose Syuhada Basri
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Raja Noor Zaliha Raja Abd. Rahman
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Microbiology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Nor Hafizah Ahmad Kamarudin
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Centre of Foundation Studies for Agricultural Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Wahhida Latip
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Mohd Shukuri Mohamad Ali
- Enzyme and Microbial Technology Research Center, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Biochemistry, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence:
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Kutlu N, İspirli Doğaç Y, Deveci İ, Teke M. Urease immobilized electrospun PVA/chitosan nanofibers with improved stability and reusability characteristics: an application for removal of urea from artificial blood serum. Prep Biochem Biotechnol 2020; 50:425-437. [DOI: 10.1080/10826068.2019.1679175] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Nur Kutlu
- Faculty of Science, Chemistry Department, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - Yasemin İspirli Doğaç
- Chemistry and Chemical Processing Technology Department, Muğla Vocational School, Muğla Sıtkı Koçman University, Muğla, Turkey
| | - İlyas Deveci
- Chemistry and Chemical Processing Technology Department, Technical Sciences Vocational School, Konya Technical University, Konya, Turkey
| | - Mustafa Teke
- Faculty of Science, Chemistry Department, Muğla Sıtkı Koçman University, Muğla, Turkey
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4
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Graphene nanoplatelet/graphitized nanodiamond-based nanocomposite for mediator-free electrochemical sensing of urea. Food Chem 2020; 303:125375. [DOI: 10.1016/j.foodchem.2019.125375] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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5
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Kumar V, Kaur I, Arora S, Mehla R, Vellingiri K, Kim KH. WITHDRAWN: Graphene nanoplatelet/graphitized nanodiamond-based nanocomposite for mediator-free electrochemical sensing of urea. Food Chem X 2019. [DOI: 10.1016/j.fochx.2019.100048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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6
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Nanoparticle-Induced Changes in Resistance and Resilience of Sensitive Microbial Indicators towards Heat Stress in Soil. SUSTAINABILITY 2019. [DOI: 10.3390/su11030862] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Modern agricultural innovations with nanomaterials are now being applied in every sphere of agriculture. However, their interaction with soil microbial processes is not being explored in detail. This initiative was undertaken to understand the effect of metal-oxide nanoparticles with heat stress in soil. Metal-oxide nanoparticles, zinc oxide (ZnO), and iron oxide (Fe2O3) (each at 10 and 40 mg kg−1 w/w) were mixed into uncontaminated soil and subjected to heat stress of 48 °C for 24 hours to assess their effect on soil biological indicators. The resistance indices for the acid (ACP), alkaline phosphatase (AKP) activity, and fluorescein diacetate hydrolyzing (FDA) activity (0.58 to 0.73, 0.58 to 0.66, and 0.42 to 0.48, respectively) were higher in the presence of ZnO nanoparticles as compared to Fe2O3 nanomaterials, following an unpredictable pattern at either 10 or 40 mg kg−1 in soils, except dehydrogenase activity (DHA), for which the activity did not change with ZnO nanomaterial. An explicit role of ZnO nanomaterial in the revival pattern of the enzymes was observed (0.20 for DHA, 0.39 for ACP, and 0.43 for AKP), except FDA, which showed comparable values with Fe2O3 nanomaterials for the following 90 day (d) after stress. Microbial count exhibiting higher resistance values were associated with Fe2O3 nanoparticles as compared to ZnO nanomaterials, except Pseudomonas. The recovery indices for the microbial counts were higher with the application of Fe2O3 nanomaterials (0.34 for Actinobacteria, 0.38 for fungi, 0.33 for Pseudomonas and 0.28 for Azotobacter). Our study emphasizes the fact that sensitive microbial indicators in soil might be hampered by external stress initially but do have the competency to recover with time, thereby reinstating the resistance and resilience of soil systems.
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Upadhyay J, Kumar A, Gupta K, Mandal M. Investigation of physical and biological properties of polypyrrole nanotubes–chitosan nanocomposites. Carbohydr Polym 2015; 132:481-9. [DOI: 10.1016/j.carbpol.2015.06.028] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2015] [Revised: 05/12/2015] [Accepted: 06/08/2015] [Indexed: 12/28/2022]
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8
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Abdelkafi-Koubaa Z, Aissa I, Morjen M, Kharrat N, El Ayeb M, Gargouri Y, Srairi-Abid N, Marrakchi N. Interaction of a snake venom L-amino acid oxidase with different cell types membrane. Int J Biol Macromol 2015; 82:757-64. [PMID: 26433175 DOI: 10.1016/j.ijbiomac.2015.09.065] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 10/23/2022]
Abstract
Snake venom l-amino acid oxidases are multifunctional enzymes that exhibited a wide range of pharmacological activities. Although it has been established that these activities are primarily caused by the H2O2 generated in the enzymatic reaction, the molecular mechanism, however, has not been fully investigated. In this work, LAAO interaction with cytoplasmic membranes using different cell types and Langmuir interfacial monolayers was evaluated. The Cerastes cerastes venom LAAO (CC-LAAO) did not exhibit cytotoxic activities against erythrocytes and peripheral blood mononuclear cells (PBMC). However, CC-LAAO caused cytotoxicity on several cancer cell lines and induced platelet aggregation in dose-dependent manner. Furthermore, the enzyme showed remarkable effect against Gram-positive and Gram-negative bacteria. These activities were inhibited on the addition of catalase or substrate analogs, suggesting that H2O2 liberation× is required for these effects. Binding studies revealed that CC-LAAO binds to the cell surface and enables the production of highly localized concentration of H2O2 in or near the binding interfaces. On another hand, the interaction of CC-LAAO with a mimetic phospholipid film was evaluated, for the first time, using a monomolecular film technique. Results indicated that phospholipid/CC-LAAO interactions are not involved in their binding to membrane and in their pharmacological activities.
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Affiliation(s)
- Zaineb Abdelkafi-Koubaa
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia.
| | - Imen Aissa
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Maram Morjen
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Nadia Kharrat
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Mohamed El Ayeb
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Youssef Gargouri
- Laboratoire de Biochimie et de Génie Enzymatique des Lipases, Ecole Nationale d'Ingénieurs de Sfax (ENIS), Route de Soukra, BP 1173, 3038 Sfax, Tunisia; Université de Sfax, Tunisia
| | - Najet Srairi-Abid
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia
| | - Naziha Marrakchi
- Laboratoire des Venins et Biomolécules Thérapeutiques LR11IPT08, Institut Pasteur de Tunis, 13, Place Pasteur, 1002 Tunis, Tunisia; Université de Tunis el Manar, 1068 Tunis, Tunisia; Faculté de Médecine de Tunis, 1007 Tunis, Tunisia
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Yang L, Li X, Li X, Su Z, Zhang C, Xu M, Zhang H. Improved stability and enhanced efficiency to degrade chlorimuron-ethyl by the entrapment of esterase SulE in cross-linked poly (γ-glutamic acid)/gelatin hydrogel. JOURNAL OF HAZARDOUS MATERIALS 2015; 287:287-295. [PMID: 25661176 DOI: 10.1016/j.jhazmat.2015.01.056] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 01/23/2015] [Accepted: 01/27/2015] [Indexed: 06/04/2023]
Abstract
Free enzymes often undergo some problems such as easy deactivation, low stability, and less recycling in biodegradation processes, especially in soil condition. A novel esterase SulE, which is responsible for primary degradation of a wide range of sulfonylurea herbicides by methyl or ethyl ester de-esterification, was expressed by strain Hansschlegelia sp. CHL1 and entrapped for the first time in an environment-friendly, biocompatible and biodegradable cross-linked poly (γ-glutamic acid)/gelatin hydrogel (CPE). The activity and stability of CPE-SulE were compared with free SulE under varying pH and temperature condition by measuring chlorimuron-ethyl residue. Meanwhile, the three-dimensional network of CPE-SulE was verified by scanning electron microscopy (SEM). The results showed that CPE-SulE obviously improved thermostability, pH stability and reusability compared with free SulE. Furthermore, CPE-SulE enhanced degrading efficiency of chlorimuron-ethyl in both soil and water system, especially in acid environment. The characteristics of CPE-SulE suggested the great potential to remediate chlorimuron-ethyl contaminated soils in situ.
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Affiliation(s)
- Liqiang Yang
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China; University of Chinese Academy of Sciences, Beijing, China
| | - Xinyu Li
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Xu Li
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Zhencheng Su
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Chenggang Zhang
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - MingKai Xu
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China
| | - Huiwen Zhang
- State Key Laboratory of Forest and Soil Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, China.
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10
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Soldatkin OO, Shelyakina MK, Arkhypova VN, Soy E, Kirdeciler SK, Ozansoy Kasap B, Lagarde F, Jaffrezic-Renault N, Akata Kurç B, Soldatkin AP, Dzyadevych SV. Nano- and microsized zeolites as a perspective material for potentiometric biosensors creation. NANOSCALE RESEARCH LETTERS 2015; 10:59. [PMID: 25852356 PMCID: PMC4385093 DOI: 10.1186/s11671-015-0768-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 01/19/2015] [Indexed: 05/26/2023]
Abstract
A number of potentiometric biosensors based on coimmobilization of enzymes with different types of zeolite on pH-ion-sensitive field-effect transistor (ISFET) have been developed. Their working characteristics have been determined and compared. It was shown that clinoptilolite and zeolite Beta polymorph A (BEA) are more promising for creating biosensors than zeolite A. Changing the concentration of zeolite BEA in membranes, it is possible to extend the biosensor linear measurement range. The two-layer method of deposition of the enzyme with clinoptilolite was found to provide a significant increase in the biosensor sensitivity to substrates, whereas thermal modification of the zeolite BEA crystals can improve analytical characteristics of potentiometric biosensors for detection of toxic substances. These results show that it is possible to regulate the ISFET characteristics for different enzyme-based biosensors by tailoring the electrode surfaces via different zeolites. This makes zeolites strong candidates for integration into biosensors as ISFET modifiers.
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Affiliation(s)
- Oleksandr O Soldatkin
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03143 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01601 Kyiv, Ukraine
| | - Margaryta K Shelyakina
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03143 Kyiv, Ukraine
| | - Valentyna N Arkhypova
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03143 Kyiv, Ukraine
| | - Esin Soy
- />Central Laboratory, Middle East Technical University, 06531 Ankara, Turkey
| | | | - Berna Ozansoy Kasap
- />Central Laboratory, Middle East Technical University, 06531 Ankara, Turkey
| | - Florence Lagarde
- />Institute of Analytical Sciences, 5 rue de la Doua, 69100 Villeurbanne, France
| | | | - Burcu Akata Kurç
- />Central Laboratory, Middle East Technical University, 06531 Ankara, Turkey
- />Micro and Nanotechnology Department, Middle East Technical University, 06531 Ankara, Turkey
| | - Alexei P Soldatkin
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03143 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01601 Kyiv, Ukraine
| | - Sergei V Dzyadevych
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03143 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street 64, 01601 Kyiv, Ukraine
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11
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Kucherenko I, Soldatkin O, Kasap BO, Kirdeciler SK, Kurc BA, Jaffrezic-Renault N, Soldatkin A, Lagarde F, Dzyadevych S. Nanosized zeolites as a perspective material for conductometric biosensors creation. NANOSCALE RESEARCH LETTERS 2015; 10:209. [PMID: 25991913 PMCID: PMC4429111 DOI: 10.1186/s11671-015-0911-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Accepted: 04/25/2015] [Indexed: 05/23/2023]
Abstract
In this work, the method of enzyme adsorption on different zeolites and mesoporous silica spheres (MSS) was investigated for the creation of conductometric biosensors. The conductometric transducers consisted of gold interdigitated electrodes were placed on the ceramic support. The transducers were modified with zeolites and MSS, and then the enzymes were adsorbed on the transducer surface. Different methods of zeolite attachment to the transducer surface were used; drop coating with heating to 200°C turned out to be the best one. Nanozeolites beta and L, zeolite L, MSS, and silicalite-1 (80 to 450 nm) were tested as the adsorbents for enzyme urease. The biosensors with all tested particles except zeolite L had good analytical characteristics. Silicalite-1 (450 nm) was also used for adsorption of glucose oxidase, acetylcholinesterase, and butyrylcholinesterase. The glucose and acetylcholine biosensors were successfully created, whereas butyrylcholinesterase was not adsorbed on silicalite-1. The enzyme adsorption on zeolites and MSS is simple, quick, well reproducible, does not require use of toxic compounds, and therefore can be recommended for the development of biosensors when these advantages are especially important.
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Affiliation(s)
- Ivan Kucherenko
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03680 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64, 01601 Kyiv, Ukraine
- />Institute of Analytical Sciences, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Oleksandr Soldatkin
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03680 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64, 01601 Kyiv, Ukraine
| | - Berna Ozansoy Kasap
- />Central Laboratory, Middle East Technical University, Dumlupinar Bulvari, 1, 06800 Ankara, Turkey
| | - Salih Kaan Kirdeciler
- />Central Laboratory, Middle East Technical University, Dumlupinar Bulvari, 1, 06800 Ankara, Turkey
| | - Burcu Akata Kurc
- />Central Laboratory, Middle East Technical University, Dumlupinar Bulvari, 1, 06800 Ankara, Turkey
- />Micro and Nanotechnology Department, Middle East Technical University, Dumlupinar Bulvari, 1, 06800 Ankara, Turkey
| | | | - Alexei Soldatkin
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03680 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64, 01601 Kyiv, Ukraine
| | - Florence Lagarde
- />Institute of Analytical Sciences, 5 rue de la Doua, 69100 Villeurbanne, France
| | - Sergei Dzyadevych
- />Laboratory of Biomolecular Electronics, Institute of Molecular Biology and Genetics, National Academy of Sciences of Ukraine, Zabolotnogo Street 150, 03680 Kyiv, Ukraine
- />Taras Shevchenko National University of Kyiv, Volodymyrska Street, 64, 01601 Kyiv, Ukraine
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Wang W, Xu Y, Qin X, Lan D, Yang B, Wang Y. Immobilization of lipase SMG1 and its application in synthesis of partial glycerides. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300442] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Weifei Wang
- School of Bioscience and Bioengineering; South China University of Technology; Guangzhou P. R. China
| | - Yang Xu
- College of Light Industry and Food Sciences; South China University of Technology; Guangzhou P. R. China
| | - Xiaoli Qin
- College of Food Science; Southwest University; Chongqing P. R. China
| | - Dongming Lan
- College of Light Industry and Food Sciences; South China University of Technology; Guangzhou P. R. China
| | - Bo Yang
- School of Bioscience and Bioengineering; South China University of Technology; Guangzhou P. R. China
| | - Yonghua Wang
- College of Light Industry and Food Sciences; South China University of Technology; Guangzhou P. R. China
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13
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Reversible Immobilization of Urease by Using Bacterial Cellulose Nanofibers. Appl Biochem Biotechnol 2013; 171:2285-94. [DOI: 10.1007/s12010-013-0541-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 09/15/2013] [Indexed: 10/26/2022]
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14
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Activity and stability of urease entrapped in thermosensitive poly(N-isopropylacrylamide-co-poly(ethyleneglycol)-methacrylate) hydrogel. Bioprocess Biosyst Eng 2013; 37:235-43. [PMID: 23771178 DOI: 10.1007/s00449-013-0990-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Accepted: 05/29/2013] [Indexed: 12/27/2022]
Abstract
Urease was entrapped in thermally responsive poly(N-isopropylacrylamide-co-poly(ethyleneglycol)-methacrylate), p[NIPAM-p(PEG)-MA], copolymer hydrogels. The copolymer membrane shows temperature-responsive properties similar to conventional p(NIPAM) hydrogels, which reversibly swell below and de-swell above the lower critical solution temperature of p(NIPAM) hydrogel at around 32 °C. The retained activities of the entrapped urease (in p[NIPAM-p(PEG)-MA]-4 hydrogels) were between 83 and 53% compared to that of the same quantity of free enzyme. Due to the thermo-responsive character of the hydrogel matrix, the maximum activity was achieved at around 25 °C with the immobilized urease. Optimum pH was the same for both free and entrapped enzyme. Operational, thermal and storage stabilities of the enzyme were found to increase with entrapment of urease in the thermoresponsive hydrogel matrixes. As for reusability, the immobilized urease retained 89% of its activity after ten repeated uses.
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15
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Liu W, Duan H, Meng X, Qin D, Wang X, Zhang J. Immobilization ofCandida lipolyticalipase on macroporous beaded terpolymers with epoxy groups. J Appl Polym Sci 2012. [DOI: 10.1002/app.38023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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16
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Kucherenko IS, Soldatkin OO, Kasap BO, Öztürk S, Akata B, Soldatkin AP, Dzyadevych SV. Elaboration of Urease Adsorption on Silicalite for Biosensor Creation. ELECTROANAL 2012. [DOI: 10.1002/elan.201200056] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Preparing a metal-ion chelated immobilized enzyme reactor based on the polyacrylamide monolith grafted with polyethylenimine for a facile regeneration and high throughput tryptic digestion in proteomics. Anal Bioanal Chem 2011; 402:703-10. [DOI: 10.1007/s00216-011-5501-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2011] [Revised: 10/11/2011] [Accepted: 10/11/2011] [Indexed: 11/26/2022]
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18
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Kirdeciler SK, Soy E, Öztürk S, Kucherenko I, Soldatkin O, Dzyadevych S, Akata B. A novel urea conductometric biosensor based on zeolite immobilized urease. Talanta 2011; 85:1435-41. [DOI: 10.1016/j.talanta.2011.06.034] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2011] [Revised: 06/03/2011] [Accepted: 06/11/2011] [Indexed: 10/18/2022]
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19
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Kharrat N, Ali YB, Marzouk S, Gargouri YT, Karra-Châabouni M. Immobilization of Rhizopus oryzae lipase on silica aerogels by adsorption: Comparison with the free enzyme. Process Biochem 2011. [DOI: 10.1016/j.procbio.2011.01.029] [Citation(s) in RCA: 108] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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20
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Poly(styrene–divinylbenzene) beads surface functionalized with di-block polymer grafting and multi-modal ligand attachment: performance of reversibly immobilized lipase in ester synthesis. Bioprocess Biosyst Eng 2011; 34:735-46. [DOI: 10.1007/s00449-011-0523-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2010] [Accepted: 02/04/2011] [Indexed: 10/18/2022]
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A potentiometric formaldehyde biosensor based on immobilization of alcohol oxidase on acryloxysuccinimide-modified acrylic microspheres. SENSORS 2010; 10:9963-81. [PMID: 22163450 PMCID: PMC3231011 DOI: 10.3390/s101109963] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2010] [Revised: 09/19/2010] [Accepted: 09/25/2010] [Indexed: 11/23/2022]
Abstract
A new alcohol oxidase (AOX) enzyme-based formaldehyde biosensor based on acrylic microspheres has been developed. Hydrophobic poly(n-butyl acrylate-N-acryloxy-succinimide) [poly(nBA-NAS)] microspheres, an enzyme immobilization matrix, was synthesized using photopolymerization in an emulsion form. AOX-poly(nBA-NAS) microspheres were deposited on a pH transducer made from a layer of photocured and self-plasticized polyacrylate membrane with an entrapped pH ionophore coated on a Ag/AgCl screen printed electrode (SPE). Oxidation of formaldehyde by the immobilized AOX resulted in the production of protons, which can be determined via the pH transducer. Effects of buffer concentrations, pH and different amount of immobilization matrix towards the biosensor’s analytical performance were investigated. The formaldehyde biosensor exhibited a dynamic linear response range to formaldehyde from 0.3–316.2 mM and a sensitivity of 59.41 ± 0.66 mV/decade (R2 = 0.9776, n = 3). The lower detection limit of the biosensor was 0.3 mM, while reproducibility and repeatability were 3.16% RSD (relative standard deviation) and 1.11% RSD, respectively (n = 3). The use of acrylic microspheres in the potentiometric formaldehyde biosensor improved the biosensor’s performance in terms of response time, linear response range and long term stability when compared with thick film immobilization methods.
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Bayramoglu G, Arica MY. Reversible immobilization of catalase on fibrous polymer grafted and metal chelated chitosan membrane. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.11.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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Erzheng Su, Tao Xia, Liping Gao, Qianying Dai, Zhengzhu Zhang. Immobilization and Characterization of Tannase and its Haze-removing. FOOD SCI TECHNOL INT 2010. [DOI: 10.1177/1082013209352919] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tannase was effectively immobilized on alginate by the method of crosslinking-entrapment-crosslinking with a high activity recovery of 76.6%. The properties of immobilized tannase were investigated. Its optimum temperature was determined to be 35 ° C, decreasing 10 °C compared with that of free enzyme, whereas the optimum pH of 5.0 did not change. The thermal and pH stabilities of immobilized tannase increased to some degree. The kinetic parameter, Km, for immobilized tannase was estimated to be 11.6 × 10-4 mol/L. Fe2+ and Mn2+ could activate the activity of immobilized tannase. The immobilized tannase was also applied to treat the tea beverage to investigate its haze-removing effect. The content of non-estern catechins in green tea, black tea and oolong tea increased by 52.17%, 12.94% and 8.83%, respectively. The content of estern catechins in green tea, oolong tea and black tea decreased by 20.0%, 16.68% and 5.04%, respectively. The anti-sediment effect of green tea infusion treated with immobilized tannase was significantly increased. The storage stability and reusability of the immobilized tannase were improved greatly, with 72.5% activity retention after stored for 42 days and 86.9% residual activity after repeatedly used for 30 times.
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Affiliation(s)
- Erzheng Su
- State Key Laboratory of Bioreactor Engineering, New World Institute of Biotechnology East China University of Science and Technology, Shanghai 200237, P.R. China,
| | - Tao Xia
- Key Laboratory of Tea Biochemistry and Biotechnology of Ministry of Agriculture & Ministry of Education, Anhui Agricultural University, Hefei, Anhui 230036, P.R. China,
| | - Liping Gao
- Key Laboratory of Tea Biochemistry and Biotechnology of Ministry of Agriculture & Ministry of Education, Anhui Agricultural University, Hefei, Anhui 230036, P.R. China
| | - Qianying Dai
- Key Laboratory of Tea Biochemistry and Biotechnology of Ministry of Agriculture & Ministry of Education, Anhui Agricultural University, Hefei, Anhui 230036, P.R. China
| | - Zhengzhu Zhang
- Key Laboratory of Tea Biochemistry and Biotechnology of Ministry of Agriculture & Ministry of Education, Anhui Agricultural University, Hefei, Anhui 230036, P.R. China
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Zhu J, Huang Q, Pigna M, Violante A. Immobilization of acid phosphatase on uncalcined and calcined Mg/Al-CO(3) layered double hydroxides. Colloids Surf B Biointerfaces 2010; 77:166-73. [PMID: 20189778 DOI: 10.1016/j.colsurfb.2010.01.020] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Revised: 12/18/2009] [Accepted: 01/25/2010] [Indexed: 11/15/2022]
Abstract
Acid phosphatase was immobilized on layered double hydroxides of uncalcined- and calcined-Mg/Al-CO(3) (Unc-LDH-CO(3), C-LDH-CO(3)) by the means of direct adsorption. Optimal pH and temperature for the activity of free and immobilized enzyme were exhibited at pH 5.5 and 37 degrees C. The Michaelis constant (K(m)) for free enzyme was 1.09 mmol mL(-1) while that for immobilized enzyme on Unc-LDH-CO(3) and C-LDH-CO(3) was increased to 1.22 and 1.19 mmol mL(-1), respectively, indicating the decreased affinity of substrate for immobilized enzymes. The residual activity of immobilized enzyme on Unc-LDH-CO(3) and C-LDH-CO(3) at optimal pH and temperature was 80% and 88%, respectively, suggesting that only little activity was lost during immobilization. The deactivation energy (E(d)) for free and immobilized enzyme on Unc-LDH-CO(3) and C-LDH-CO(3) was 65.44, 35.24 and 40.66 kJ mol(-1), respectively, indicating the improving of thermal stability of acid phosphatase after the immobilization on LDH-CO(3) especially the uncalcined form. Both chemical assays and isothermal titration calorimetry (ITC) observations implied that hydrolytic stability of acid phosphatase was promoted significantly after the immobilization on LDH-CO(3) especially the calcined form. Reusability investigation showed that more than 60% of the initial activity was remained after six reuses of immobilized enzyme on Unc-LDH-CO(3) and C-LDH-CO(3). A half-life (t(1/2)) of 10 days was calculated for free enzyme, 55 and 79 days for the immobilized enzyme on Unc-LDH-CO(3) and C-LDH-CO(3) when stored at 4 degrees C. Therefore, immobilization of acid phosphatase on Unc-LDH-CO(3) and C-LDH-CO(3) by direct adsorption is an effective means and would have promising potential for the practical application in agricultural production and environmental remediation.
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Affiliation(s)
- Jun Zhu
- Key Laboratory of Subtropical Agriculture and Environment, Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
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25
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Krajewska B. Ureases. II. Properties and their customizing by enzyme immobilizations: A review. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.molcatb.2009.01.004] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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26
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Tyagi C, Tomar LK, Singh H. Surface modification of cellulose filter paper by glycidyl methacrylate grafting for biomolecule immobilization: Influence of grafting parameters and urease immobilization. J Appl Polym Sci 2009. [DOI: 10.1002/app.28933] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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27
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Synthesis and characterization of poly (2-hydroxyethyl methacrylate)-polyaniline based hydrogel composites. REACT FUNCT POLYM 2008. [DOI: 10.1016/j.reactfunctpolym.2008.05.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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28
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Hossain KZ, Monreal CM, Sayari A. Adsorption of urease on PE-MCM-41 and its catalytic effect on hydrolysis of urea. Colloids Surf B Biointerfaces 2008; 62:42-50. [DOI: 10.1016/j.colsurfb.2007.09.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2007] [Revised: 09/15/2007] [Accepted: 09/16/2007] [Indexed: 10/22/2022]
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29
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Bayramoglu G, Tunali Y, Arica MY. Immobilization of β-galactosidase onto magnetic poly(GMA–MMA) beads for hydrolysis of lactose in bed reactor. CATAL COMMUN 2007. [DOI: 10.1016/j.catcom.2006.10.029] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Pérez JPH, López-Cabarcos E, López-Ruiz B. The application of methacrylate-based polymers to enzyme biosensors. ACTA ACUST UNITED AC 2006; 23:233-45. [PMID: 16880004 DOI: 10.1016/j.bioeng.2006.06.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2005] [Revised: 06/19/2006] [Accepted: 06/19/2006] [Indexed: 10/24/2022]
Abstract
Enzyme electrodes based on methacrylates have received significant attention in the development of biosensors. This article reviews the use and application of methacrylate and its derivatives as an immobilization system for the preparation of enzyme electrodes. Resent examples, extracted from the literature, illustrate the superior performance of such materials in the fabrication of biosensors and bioreactors.
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Affiliation(s)
- J P Hervás Pérez
- Sección Departamental de Química Analítica, Facultad de Farmacia, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
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Yakup Arıca M, Yilmaz M, Bayramoğlu G. Chitosan-grafted poly(hydroxyethyl methacrylate-co-glycidyl methacrylate) membranes for reversible enzyme immobilization. J Appl Polym Sci 2006. [DOI: 10.1002/app.25466] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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