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Bhapkar S, Kumbhar N, Sharma P, Jagtap S, Gacche R, Barvkar VT, Sonune D, Sonawane KD, Jadhav U. Self-assembly of soybean peroxidase nanohybrid for activity enhancement and dye decolorization: experimental and computational studies. J Biomol Struct Dyn 2021; 40:12739-12749. [PMID: 34550842 DOI: 10.1080/07391102.2021.1975566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 08/29/2021] [Indexed: 12/27/2022]
Abstract
The soybean peroxidase (SBP) mediated nanohybrid [SBP-Cu3(PO4)2·3H2O] synthesis was carried out in the present study. The scanning electron microscopy (SEM) analysis showed a characteristic flower-like hierarchical structure of the SBP-nanohybrid. The mechanism of SBP-nanohybrid formation was elucidated using computational approaches. The predicted Cu2+ binding sites followed by molecular docking studies showed the two lowest energy (-4.4 kcal/mol and -3.56 kcal/mol) Cu2+ binding sites. These two binding sites are located at the opposite position and might be involved in the formation of SBP-nanohybrid assemblies. Further, these sites are different than the catalytic active site pocket of SBP, and may facilitate more substrate catalysis. Obtained computational results were confirmed by in-vitro guaiacol oxidations studies using SBP-nanohybrid. The effect of various parameters on SBP-nanohybrid activity was studied. The pH 7.2 was found optimum for SBP-nanohybrid activity. The enzyme activity increased with an increase in temperature up to 50 °C temperature and then decreased with an increase in temperature. Around ∼138% enhanced activity was recorded using SBP-nanohybrid compared to crude SBP. Also, the SBP-nanohybrid showed around 95% decolorization of methylene blue (MB) in 1 h and the MB degradation was confirmed by high-pressure liquid chromatography analysis (HPLC).Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Sunil Bhapkar
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Navanath Kumbhar
- Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Praful Sharma
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Shweta Jagtap
- Department of Instrumentation Science, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Rajesh Gacche
- Department of Biotechnology, Savitribai Phule Pune University, Pune, Maharashtra, India
| | - Vitthal T Barvkar
- Department of Botany, Savitribai Phule Pune University, Pune, Maharashtra, India
| | | | - Kailas D Sonawane
- Department of Biochemistry, Shivaji University, Kolhapur, Maharashtra, India
| | - Umesh Jadhav
- Department of Microbiology, Savitribai Phule Pune University, Pune, Maharashtra, India
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Barker AJ, Arthur A, DeNichilo MO, Panagopoulos R, Gronthos S, Anderson PJ, Zannettino AC, Evdokiou A, Panagopoulos V. Plant-derived soybean peroxidase stimulates osteoblast collagen biosynthesis, matrix mineralization, and accelerates bone regeneration in a sheep model. Bone Rep 2021; 14:101096. [PMID: 34136591 PMCID: PMC8178086 DOI: 10.1016/j.bonr.2021.101096] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/29/2021] [Accepted: 05/21/2021] [Indexed: 02/08/2023] Open
Abstract
Bone defects arising from fractures or disease represent a significant problem for surgeons to manage and are a substantial economic burden on the healthcare economy. Recent advances in the development of biomaterial substitutes provides an attractive alternative to the current "gold standard" autologous bone grafting. Despite on-going research, we are yet to identify cost effective biocompatible, osteo-inductive factors that stimulate controlled, accelerated bone regeneration.We have recently reported that enzymes with peroxidase activity possess previously unrecognised roles in extracellular matrix biosynthesis, angiogenesis and osteoclastogenesis, which are essential processes in bone remodelling and repair. Here, we report for the first time, that plant-derived soybean peroxidase (SBP) possesses pro-osteogenic ability by promoting collagen I biosynthesis and matrix mineralization of human osteoblasts in vitro. Mechanistically, SBP regulates osteogenic genes responsible for inflammation, extracellular matrix remodelling and ossification, which are necessary for normal bone healing. Furthermore, SBP was shown to have osteo-inductive properties, that when combined with commercially available biphasic calcium phosphate (BCP) granules can accelerate bone repair in a critical size long bone defect ovine model. Micro-CT analysis showed that SBP when combined with commercially available biphasic calcium phosphate (BCP) granules significantly increased bone formation within the defects as early as 4 weeks compared to BCP alone. Histomorphometric assessment demonstrated accelerated bone formation prominent at the defect margins and surrounding individual BCP granules, with evidence of intramembranous ossification. These results highlight the capacity of SBP to be an effective regulator of osteoblastic function and may be beneficial as a new and cost effective osteo-inductive agent to accelerate repair of large bone defects.
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Affiliation(s)
- Alexandra J. Barker
- Musculoskeletal Biology Research Laboratory, Clinical and Health Sciences, University of South Australia, Adelaide, Australia
| | - Agnes Arthur
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Mark O. DeNichilo
- Centre for Cancer Biology, University of South Australia, Adelaide, Australia
| | - Romana Panagopoulos
- Breast Cancer Research Unit, School of Medicine, Discipline of Surgery and Orthopaedics, Basil Hetzel Institute, University of Adelaide, Adelaide, Australia
| | - Stan Gronthos
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
| | - Peter J. Anderson
- Mesenchymal Stem Cell Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Centre for Cancer Biology, University of South Australia, Adelaide, Australia
- Australian Craniofacial Unit, Women's and Children's Hospital, Department of Paediatrics and Dentistry, University of Adelaide, Adelaide, Australia
- Central Adelaide Local Health Network, Adelaide, Australia
| | - Andrew C.W. Zannettino
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
- Department of Haematology, Royal Adelaide Hospital, Adelaide, Australia
- Central Adelaide Local Health Network, Adelaide, Australia
| | - Andreas Evdokiou
- Breast Cancer Research Unit, School of Medicine, Discipline of Surgery and Orthopaedics, Basil Hetzel Institute, University of Adelaide, Adelaide, Australia
| | - Vasilios Panagopoulos
- Myeloma Research Laboratory, Adelaide Medical School, Faculty of Health and Medical Sciences, University of Adelaide, Adelaide, Australia
- Breast Cancer Research Unit, School of Medicine, Discipline of Surgery and Orthopaedics, Basil Hetzel Institute, University of Adelaide, Adelaide, Australia
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, Australia
- Corresponding author at: Myeloma Research Laboratory, Level 5 South, South Australian Health and Medical Research Institute, Adelaide SA 500, Australia.
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Almaqdi KA, Morsi R, Alhayuti B, Alharthi F, Ashraf SS. LC-MSMS based screening of emerging pollutant degradation by different peroxidases. BMC Biotechnol 2019; 19:83. [PMID: 31779627 PMCID: PMC6883607 DOI: 10.1186/s12896-019-0574-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 10/28/2019] [Indexed: 01/19/2023] Open
Abstract
Background The presence of a wide range of bioactive organic pollutants in wastewater and municipal water sources is raising concerns about their potential effects on humans. Not surprisingly, various approaches are being explored that can efficiently degrade these persistent organic pollutants. Use of peroxidases has recently been recognized as a novel remediation approach that may have potential advantages over conventional degradation techniques. However, testing the abilities of different peroxidases to degrade diverse emerging pollutants is tedious and cumbersome. Results In the present study, we present a rapid and robust approach to easily test the degradability of 21 different emerging pollutants by five different peroxidases (soybean peroxidase, chloroperoxidase, lactoperoxidase, manganese peroxidase, and horseradish peroxidase) using an LC-MSMS approach. Furthermore, this approach was also used to examine the role of a redox mediator in these enzymatic degradation assays. Our results show that some of the organic pollutants can be easily degraded by all five of the peroxidases tested, whereas others are only degraded by a specific peroxidase (or when a redox mediator was present) and there are some that are completely resistant to degradation by any of the peroxidases tested (even in the presence of a redox mediator). The degradation of furosemide and trimethoprim by soybean peroxidase and chloroperoxidase, respectively, was investigated in detail by examining the transformation products generated during their degradation. Some of the products generated during enzymatic breakdown of these pollutants have been previously reported by others, however, we report many new transformation products. Conclusions LC-MSMS approaches, like the one described here, can be used to rapidly evaluate the potential of different peroxidases (and redox requirements) to be used as bioremediation agents. Our preliminary result shows peroxidases hold tremendous potential for being used in a final wastewater treatment step.
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Affiliation(s)
- Khadega A Almaqdi
- Department of Chemistry, College of Science, UAE University, Al Ain, UAE
| | - Rana Morsi
- Department of Chemistry, College of Science, UAE University, Al Ain, UAE
| | - Bahia Alhayuti
- Department of Chemistry, College of Science, UAE University, Al Ain, UAE
| | - Farah Alharthi
- Department of Chemistry, College of Science, UAE University, Al Ain, UAE
| | - S Salman Ashraf
- Department of Chemistry, College of Arts and Sciences, Khalifa University, P O Box 127788, Abu Dhabi, UAE.
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Mukherjee D, Bhattacharya S, Taylor KE, Biswas N. Enzymatic treatment for removal of hazardous aqueous arylamines, 4,4'-methylenedianiline and 4,4'-thiodianiline. Chemosphere 2019; 235:365-372. [PMID: 31265982 DOI: 10.1016/j.chemosphere.2019.06.182] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 06/17/2019] [Accepted: 06/24/2019] [Indexed: 06/09/2023]
Abstract
The search for an effective and sustainable treatment method to remove the recalcitrant atom-bridged bis-anilino compounds, 4,4'-methylenedianiline (MDA) and 4,4'-thiodianiline (TDA) from water is a major challenge and focus of this study. The escalating discharge of these two toxic and carcinogenic pollutants from industrial sources may pose a serious threat to the environment. Crude soybean peroxidase (SBP), isolated from soybean seed hulls (coats), catalyzes the oxidative polymerization of these aqueous pollutants in the presence of hydrogen peroxide. The effects of several process parameters, i.e., pH, hydrogen peroxide-to-substrate concentration ratio and SBP concentration, were investigated to optimize the performance of enzymatic treatment. The minimum effective SBP concentration required for removal of MDA was 0.70 U/mL, which was higher than that of TDA (0.15 U/mL). The reaction time course to achieve ≥95% removal of these compounds from water was determined under those optimum conditions. Identification of the transformed products was performed by means of high-resolution electrospray ionization mass spectrometry. The products generally observed were protonated oxidized oxidative dimers and higher oligomers (most commonly azo-coupled products). Michaelis constant, KM, and maximum reaction velocity, Vmax, obtained from the Michaelis-Menten (M-M) model revealed that TDA had a 65-fold lower KM than MDA (indicating TDA's higher affinity for SBP), and almost 5-fold higher Vmax than MDA. A pro-forma cost analysis is presented to assess the possibility of commercialization of enzymatic treatment as an alternative to conventional/traditional treatment methods.
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Affiliation(s)
| | | | - Keith E Taylor
- Department of Chemistry and Biochemistry, University of Windsor, 401 Sunset Avenue, Windsor, ON, Canada N9B 3P4.
| | - Nihar Biswas
- Department of Civil and Environmental Engineering, Canada
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Romero-García J, Ledezma-Pérez A, Martínez-Cartagena M, Alvarado-Canché C, Jiménez-Cárdenas P, De-León A, Gallardo-Vega C. Radical addition polymerization: Enzymatic template-free synthesis of conjugated polymers and their nanostructure fabrication. Methods Enzymol 2019; 627:321-337. [PMID: 31630746 DOI: 10.1016/bs.mie.2019.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Conjugated polymers are attractive for many applications due to their unique properties. Their molecular structure can easily be tuned, making them suitable for an enormous number of specific applications. Conjugated polymers have the potential to achieve electrical properties similar to those of noncrystalline inorganic semiconductors; however, their chemical structure is much more complex and somewhat resembles that of biomacromolecules. The molecular conformation and interactions of conjugated polymers play an important role in their functionality. The use of enzymes has emerged as a highly valuable alternative method to synthesize these polymers and is very useful in the fabrication of their nanostructures. Here, we present established strategies for the synthesis of conjugated polymers in template-free systems that do not interfere with the preparation of their nanostructures. These strategies are based on the use of peroxidases (class III; EC 1.11.1.7, donor: hydrogen peroxide oxidoreductase), which are enzymes that have the ability to catalyze the oxidation of a number of compounds (including aromatics such as aniline, pyrrole, thiophene and some of their derivatives), in the presence of hydrogen peroxide, to obtain conjugated polymers.
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Affiliation(s)
| | | | | | | | | | - Arxel De-León
- Centro de Investigación en Química Aplicada, Saltillo, Coah., México
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Lopez JC, Zon MA, Fernández H, Granero AM, Robledo SN. Determination of kinetic parameters of the enzymatic reaction between soybean peroxidase and natural antioxidants using chemometric tools. Food Chem 2019; 275:161-168. [PMID: 30724183 DOI: 10.1016/j.foodchem.2018.08.145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/29/2018] [Accepted: 08/31/2018] [Indexed: 11/23/2022]
Abstract
The oxidation of eugenol, isoeugenol and vanillin natural antioxidants catalyzed by the soybean peroxidase enzyme was studied using uv-vis spectroscopy. An experimental design was used to optimize the different variables. The multivariate curve resolution method was used to obtain the profiles of antioxidant absorbance's as a function of time due to uv-vis absorption bands of both antioxidants and the enzymatic reaction product/s show a strong overlap. From these results, apparent Michaelis-Menten constants as well as the kinetic parameters k1 and k3 involved in the catalytic cycle of peroxidases were calculated. The antioxidant apparent acidity constants were also determined at different pH's from uv-vis spectrophotometric measurements. Values of k1 were (0.6 ± 0.1) × 105 M-1 s-1, (2.0 ± 0.2) × 105 M-1 s-1 and (7.0 ± 0.5) × 106 M-1 s-1 and k3 (4.0 ± 0.2) × 105 M-1 s-1, (6.0 ± 0.6) × 105 M-1 s-1 and (6.0 ± 0.9) × 106 M-1 s-1 for eugenol, isoeugenol and vanillin, respectively.
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Affiliation(s)
- Jimena Claudia Lopez
- Grupo de Electroanalítica (GEANA), Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina.
| | - María Alicia Zon
- Grupo de Electroanalítica (GEANA), Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina.
| | - Héctor Fernández
- Grupo de Electroanalítica (GEANA), Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina.
| | - Adrian Marcelo Granero
- Grupo de Electroanalítica (GEANA), Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina.
| | - Sebastián Noel Robledo
- Grupo de Electroanalítica (GEANA), Departamento de Química, Facultad de Ciencias Exactas, Físico-Químicas y Naturales, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina; Departamento de Tecnología Química, Facultad de Ingeniería, Universidad Nacional de Río Cuarto, Agencia Postal N° 3, 5800 Río Cuarto, Argentina.
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7
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Tang M, Zhou Z, Shangguan L, Zhao F, Liu S. Electrochemiluminescent detection of cardiac troponin I by using soybean peroxidase labeled-antibody as signal amplifier. Talanta 2018; 180:47-53. [PMID: 29332832 DOI: 10.1016/j.talanta.2017.12.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 11/29/2017] [Accepted: 12/04/2017] [Indexed: 10/18/2022]
Abstract
This work proposed an electrochemiluminescence (ECL) immunosensor for quantitative monitoring of cardiac troponin I (cTnI) in plasma with soybean peroxidase (SBP) labeled-antibody as signal amplifier. The ECL sandwich immunosensor was constructed by covalent binding anti-cTnI capture antibody (Ab1) to polyethylenimine-functionalized graphene matrix, which was obtained by a simple hydrothermal reaction between polyethylenimine (PEI) and graphene oxide (GO). After that, the SBP-labeled detection antibody (SBP-Ab2), synthesized by NaIO4 method, was immobilized on the surface of electrode through sandwich immunoreaction. The SBP on electrode surface displayed strong and stable ECL signal of luminol in the presence of H2O2, which could be used for cTnI detection with a concentration range of 5-30,000pg/mL and a detection limit of 3.3pg/mL. This proposed SBP-modified immunosensor displayed high sensitivity, selectivity and accuracy, and was expected not only to detect cTnI in practical human plasma sample but also to be used in other biomarkers detection.
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Affiliation(s)
- Min Tang
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | | | - Li Shangguan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Fang Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Songqin Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Engineering Laboratory of Smart Carbon-Rich Materials and Device, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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8
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Li J, Zhang Y, Peng J, Wu X, Gao S, Mao L. The effect of dissolved organic matter on soybean peroxidase-mediated removal of triclosan in water. Chemosphere 2017; 172:399-407. [PMID: 28088531 DOI: 10.1016/j.chemosphere.2017.01.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 12/01/2016] [Accepted: 01/03/2017] [Indexed: 06/06/2023]
Abstract
Dissolved organic matter (DOM) is ubiquitous in water and involved in numerous important chemical processes in aqueous systems, enabling it a unique challenge for a variety of water treatment processes. Soybean peroxidase (SBP)-based enzymatic process, as a promising treatment technique, has been successfully applied to remove pollutants in wastewaters such as coal-tar and refinery wastewater. In this study, the effect of DOM on the removal of polychlorinated aromatic antimicrobials triclosan (TCS) by SBP was investigated. Our results suggested that DOM significantly suppressed the catalytic performance of SBP to TCS, presumably resulting from the competition of the phenolic moiety in DOM structure as the active substrate of SBP via the analysis of excitation emission matrix (EEM) spectra of DOM. Although the product species of TCS in SBP-mediated system with DOM has no change compared with the system without DOM, the yields of self-coupling products relative to total transformed TCS were remarkably reduced in the presence of DOM, suggesting that DOM participated in the oxidative coupling reactions. Cross-coupling between TCS and DOM was also verified using guaiacol as a model DOM constituent. Moreover, the products including self-coupling products and co-polymers in SBP-mediated TCS reaction system with DOM were innocuous through growth inhibition assay of S. obliquus.
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Affiliation(s)
- Jianhua Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Ya Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection of the People's Republic of China, Nanjing, 210042, China
| | - Jianbiao Peng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Xinan Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
| | - Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
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Calza P, Zacchigna D, Laurenti E. Degradation of orange dyes and carbamazepine by soybean peroxidase immobilized on silica monoliths and titanium dioxide. Environ Sci Pollut Res Int 2016; 23:23742-23749. [PMID: 27623850 DOI: 10.1007/s11356-016-7399-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 08/04/2016] [Indexed: 06/06/2023]
Abstract
In this paper, the removal of three common dyes (orange I, orange II, and methylorange) and of the anticonvulsant drug carbamazepine from aqueous solutions by means of enzymatic and photocatalytic treatment was studied. Soybean peroxidase (SBP) was used as biocatalyst, both free in solution and immobilized on silica monoliths, and titanium dioxide as photocatalyst. The combination of the two catalysts led to a faster (about two to four times) removal of all the orange dyes compared to the single systems. All the dyes were completely removed within 2 h, also in the presence of immobilized SBP. As for carbamazepine, photocatalytic treatment prevails on the enzymatic degradation, but the synergistic effect of two catalysts led to a more efficient degradation; carbamazepine's complete disappearance was achieved within 60 min with combined system, while up to 2 h is required with TiO2 only.
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Affiliation(s)
- Paola Calza
- Department of Chemistry, University of Turin, Via P. Giuria 5/7, 10125, Torino, Italy
| | - Dario Zacchigna
- Department of Chemistry, University of Turin, Via P. Giuria 5/7, 10125, Torino, Italy
| | - Enzo Laurenti
- Department of Chemistry, University of Turin, Via P. Giuria 5/7, 10125, Torino, Italy.
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10
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Liu A, Zhao F, Zhao Y, Shangguan L, Liu S. A portable chemiluminescence imaging immunoassay for simultaneous detection of different isoforms of prostate specific antigen in serum. Biosens Bioelectron 2016; 81:97-102. [PMID: 26922048 DOI: 10.1016/j.bios.2016.02.049] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Revised: 01/31/2016] [Accepted: 02/15/2016] [Indexed: 11/25/2022]
Abstract
A multianalyte chemiluminescence (CL) imaging immunoassay strategy for sensitive detection of different isoforms of prostate specific antigen (PSA) was developed. The microtiter plates were fabricated by simultaneously immobilizing of free-PSA (f-PSA) and total-PSA (t-PSA) capture antibody on nitrocellulose (NC) membrane. Each of the array were spotted in replicates of six spots within a spacing of 2mm. 16 or 48 detection wells were integrated on a single NC membrane and each well could be used as a microreactor and microanalysis chamber. Under a sandwiched immunoassay, the CL signals on each sensing site were collected by a charge-coupled device (CCD), presenting an array-based chemiluminescence imaging. Soybean peroxidase (SBP) was used to label f-PSA or t-PSA monoclonal antibody. With the amplification effects of two enhancers, 3-(10'-phenothiazinyl) propane-1-sulfonate (SPTZ) and 4-morpholinopyridine (MORP), the CL intensity could significantly enhanced, which improved the sensing sensitivity and detection limit. Under the optimal conditions, the linear response to the analyte concentration ranged from 0.01-36.7ng/mL and 0.02-125ng/mL for f-PSA and t-PSA, respectively. The results for the detection of forty serum samples from prostate cancer patients and cancer-free patients showed good agreement with the clinical data, suggesting that the proposed assay had acceptable accuracy. The proposed CL imaging immunoassay possess high throughput and acceptable reproducibility, stability and accuracy, which made it great potential to available to distinguish different isoforms of PSA in serum samples.
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Affiliation(s)
- Anran Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Fang Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Yuewu Zhao
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Li Shangguan
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China
| | - Songqin Liu
- Key Laboratory of Environmental Medicine Engineering, Ministry of Education, Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, Suzhou Research Institute of Southeast University, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, PR China.
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11
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Li J, Peng J, Zhang Y, Ji Y, Shi H, Mao L, Gao S. Removal of triclosan via peroxidases-mediated reactions in water: Reaction kinetics, products and detoxification. J Hazard Mater 2016; 310:152-160. [PMID: 26921508 DOI: 10.1016/j.jhazmat.2016.02.037] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Revised: 02/01/2016] [Accepted: 02/17/2016] [Indexed: 06/05/2023]
Abstract
This study investigated and compared reaction kinetics, product characterization, and toxicity variation of triclosan (TCS) removal mediated by soybean peroxidase (SBP), a recognized potential peroxidase for removing phenolic pollutants, and the commonly used horseradish peroxidase (HRP) with the goal of assessing the technical feasibility of SBP-catalyzed removal of TCS. Reaction conditions such as pH, H2O2 concentration and enzyme dosage were found to have a strong influence on the removal efficiency of TCS. SBP can retain its catalytic ability to remove TCS over broad ranges of pH and H2O2 concentration, while the optimal pH and H2O2 concentration were 7.0 and 8μM, respectively. 98% TCS was removed with only 0.1UmL(-1) SBP in 30min reaction time, while an HRP dose of 0.3UmL(-1) was required to achieve the similar conversion. The catalytic performance of SBP towards TCS was more efficient than that of HRP, which can be explained by catalytic rate constant (KCAT) and catalytic efficiency (KCAT/KM) for the two enzymes. MS analysis in combination with quantum chemistry computation showed that the polymerization products were generated via CC and CO coupling pathways. The polymers were proved to be nontoxic through growth inhibition of green alga (Scenedesmus obliquus). Taking into consideration of the enzymatic treatment cost, SBP may be a better alternative to HRP upon the removal and detoxification of TCS in water/wastewater treatment.
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Affiliation(s)
- Jianhua Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Jianbiao Peng
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Ya Zhang
- Nanjing Institute of Environmental Sciences, Ministry of Environmental Protection of the People's Republic of China, Nanjing 210042, China
| | - Yuefei Ji
- College of Resources and Environmental Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Huanhuan Shi
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Liang Mao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Shixiang Gao
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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Zehnacker L, Nevers MC, Sinou V, Parzy D, Créminon C, Parzy D, Azoulay S. Development of sensitive direct chemiluminescent enzyme immunoassay for the determination of dihydroartemisinin in plasma. Anal Bioanal Chem 2015; 407:7823-30. [PMID: 26280205 DOI: 10.1007/s00216-015-8951-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/28/2015] [Accepted: 07/31/2015] [Indexed: 10/23/2022]
Abstract
Despite significant progress in prevention and therapy, malaria is still one of the world's leading major diseases due to its high morbidity and mortality. Recommended treatments by the World Health Organization include the use of artemisinin and artemisinin derivative-based combination therapies. To allow efficient patient monitoring during antimalarial therapy without the use of expensive apparatus, we developed a sensitive direct chemiluminescent enzyme immunoassay for the determination of dihydroartemisinin in biological fluids. To produce specific antibodies against dihydroartemisinin (DHA), a synthetic DHA derivative was coupled to bovine serum albumin as the immunogen. In parallel, a new, rapid, and efficient procedure to covalently link glycoprotein to all amine-containing molecules has been established and the enzyme tracer was prepared by chemically coupling the DHA derivative in combination with SBP rather than the more commonly used HRP. It allowed us to develop, after optimization of the luminescent reagent, a sensitive and stable luminescent EIA, with a LLOQ of 90 pg mL(-1). This assay compares favorably with the most efficient HPLC methods previously reported with a LLOQ close to 1 ng mL(-1) and shows good precision and efficiency since recovery from human plasma spiked with DHA ranged between 91 and 103%, with coefficients of variation of <13%. To date, no immunoassay for DHA has been applied to plasma analysis and this EIA should be very useful in all clinical laboratories for rapid and cost-effective analysis.
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Affiliation(s)
- Laura Zehnacker
- Institut de Chimie de Nice, UMR 7272 CNRS, Université Nice Sophia Antipolis, Parc Valrose, 06108, Nice, France
| | - Marie-Claire Nevers
- CEA, iBiTecS, Service de Pharmacologie et d'Immunoanalyse, 91191, Gif sur Yvette, France
| | - Véronique Sinou
- Faculté de Pharmacie, UMR-MD3, Aix-Marseille Université, 27, Boulevard Jean Moulin, 13385, Marseille, France
| | - Dominique Parzy
- K-Plan, 66 Boulevard Niels Bohr, 69100, Villeurbanne, France
| | - Christophe Créminon
- CEA, iBiTecS, Service de Pharmacologie et d'Immunoanalyse, 91191, Gif sur Yvette, France
| | - Daniel Parzy
- Faculté de Pharmacie, UMR-MD3, Aix-Marseille Université, 27, Boulevard Jean Moulin, 13385, Marseille, France
| | - Stéphane Azoulay
- Institut de Chimie de Nice, UMR 7272 CNRS, Université Nice Sophia Antipolis, Parc Valrose, 06108, Nice, France.
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Yu Y, Fei X, Tian J, Xu L, Wang X, Wang Y. Self-assembled enzyme-inorganic hybrid nanoflowers and their application to enzyme purification. Colloids Surf B Biointerfaces 2015; 130:299-304. [PMID: 25935264 DOI: 10.1016/j.colsurfb.2015.04.033] [Citation(s) in RCA: 66] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 03/31/2015] [Accepted: 04/13/2015] [Indexed: 11/29/2022]
Abstract
We report a novel method to synthesize organic-inorganic nanoflowers for crude soybean peroxidase (SBP) purification. A hierarchical flower-like spherical structure with hundreds of nanopetals was self-assembled by using crude SBP as the organic component and Cu3(PO4)2·3H2O as the inorganic component. The structure of the hybrid nanoflowers was confirmed by Fourier-transform infrared spectroscopy, X-ray diffraction, and energy-dispersive X-ray spectroscopy, and the enzymatic activity of SBP embedded in the hybrid nanoflowers was evaluated using guaiacol as substrate. Compared with free crude SBP in solution, SBP embedded in hybrid nanoflowers exhibited enhanced enzymatic activity (∼446%). The hybrid nanoflowers also exhibited excellent reusability and reproducibility during cycle analysis. These results demonstrate that synthesis of hybrid nanoflowers is an effective enzyme purification strategy.
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Affiliation(s)
- Yi Yu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, PR China; School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, PR China
| | - Xu Fei
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Jing Tian
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, PR China.
| | - Longquan Xu
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, PR China
| | - Xiuying Wang
- Instrumental Analysis Center, Dalian Polytechnic University, Dalian 116034, PR China
| | - Yi Wang
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, PR China
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