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Leng Y, Liu F, Cai H, Chang F, Xiong W, Huang S, Wang J. Mechanism of norfloxacin transformation by horseradish peroxidase and various redox mediated by humic acid and microplastics. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159528. [PMID: 36270366 DOI: 10.1016/j.scitotenv.2022.159528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/12/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The catalysis of HRP coupling with redox mediator was a feasible technology for the transformation of antibiotics. This work screened three effective redox mediators syringaldehyde (SYR), acetosyringone (AS) and p-coumaric acid (PCA) for the norfloxacin (NOR) transformation in HRP/redox mediator system. Then, compared their transformation characteristics under varying conditions. The molecular docking results indicated HRP catalytic mediator was spontaneous, and the absolute value order of free energy between three redox mediators and HRP was consistent with the order of NOR removal in experiment. The presence of humic acid (HA) and polystyrene (PS) microplastics could block the removal of NOR, and the inhibition effect was proportional to the level of HA and PS particles. Seven and six possible intermediate products were identified by using SYR/AS and PCA as redox mediators, respectively, and potential NOR transformation pathways were proposed. SYR and AS treatment had the same transformation products and pathways due to their similar structure, including defluorination, oxidation, cross-coupled with mediator, demethylation and dehydrogenation. While for the PCA group, NOR not only performed the above action (except defluorination), but also underwent decarbonylation. These findings may expand our knowledge of the conversion and fate of fluoroquinolones through HRP coupled with redox mediator in the environment.
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Affiliation(s)
- Yifei Leng
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, PR China
| | - Feiyu Liu
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, PR China
| | - Huiping Cai
- Wuhan Municipal Ecology and Environment Bureau, Jianghan Branch, Wuhan 430015, PR China
| | - Fengyi Chang
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, PR China
| | - Wen Xiong
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan 430068, PR China
| | - Shushi Huang
- Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, PR China.
| | - Jun Wang
- College of Marine Sciences, South China Agricultural University, Guangzhou 510642, PR China; Institute of Eco-Environmental Research, Guangxi Academy of Sciences, Nanning 530007, PR China.
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Huang Y, Lin J, Zou J, Xu J, Wang M, Cai H, Yuan B, Ma J. ABTS as an electron shuttle to accelerate the degradation of diclofenac with horseradish peroxidase-catalyzed hydrogen peroxide oxidation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149276. [PMID: 34333427 DOI: 10.1016/j.scitotenv.2021.149276] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
Horseradish peroxidase (HRP)-catalyzed hydrogen peroxide (H2O2) oxidation could degrade a variety of organic pollutants, but the intrinsic drawback of slow degradation rate limited its widespread application. In this study, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonate) (ABTS) was introduced into HRP/H2O2 system as an electron shuttle to enhance diclofenac degradation under neutral pH conditions. The green-colored ABTS radical (ABTS•+), generated by the oxidation of ABTS with HRP-catalyzed H2O2 oxidation, was proved to be the main reactive species for the rapid degradation of diclofenac in HRP/H2O2/ABTS system. There was no destruction of ABTS/ABTS•+ in HRP/H2O2/ABTS system, and ABTS was verified as an ideal electron shuttle. The reaction conditions including solution pH (4.5-10.5), HRP concentration (0-8 units mL-1) and H2O2 concentration (0-500 μM) would impact the formation of ABTS•+, and affect the degradation of diclofenac in HRP/H2O2/ABTS system. Moreover, compared with Fenton and hydroxylamine/Fenton systems, HRP/H2O2/ABTS system had better diclofenac degradation efficiency, higher H2O2 utilization efficiency and stronger anti-interference capacity in actual waters. Overall, the present study provided a meaningful and promising way to enhance the degradation of organic pollutants in water with HRP-catalyzed H2O2 oxidation.
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Affiliation(s)
- Yixin Huang
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Jinbin Lin
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Jing Zou
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China.
| | - Jiaxin Xu
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Mengyun Wang
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, PR China
| | - Huahua Cai
- China Academy Urban Planning & Design Shenzhen, Guangdong 518000, PR China
| | - Baoling Yuan
- Xiamen Key Laboratory of Municipal and Industrial Solid Waste Utilization and Pollution Control, College of Civil Engineering, Huaqiao University, Xiamen, Fujian 361021, PR China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, PR China
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Huang S, Jiang S, Liu H, Cai J, Chen G, Xu J, Kai D, Bai P, Zhou R, Wang Z. Facile Synthesis of Iron Oxide Nanozymes for Synergistically Colorimetric and Magnetic Resonance Detection Strategy. J Biomed Nanotechnol 2021; 17:582-594. [DOI: 10.1166/jbn.2021.3049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Iron oxide nanomaterials with mimic enzymes activity have been paid more attention in the clinical diagnosis field. The modified surface molecules would influence the catalytic activity of nanozyme, which is worth studying. Furthermore, the traditional detection strategy is based on
colorimetric change of substrates, however, the optical signal is easy to be interfered in complex biological applications. In our research, an efficient and facile preparation strategy was developed to obtain functional artificial nanozymes. Herein, three kinds of surfactants, including citrate
acid, poly(ethylene glycol) bis (carboxymethyl) ether and tannic acid have been applied to modify these nanomaterials that showed uniform size, high soluble dispersity and stability. Furthermore, these nanozymes exhibited different peroxidase-like activity to catalyze the hydrogen peroxide
and 3,3′,5,5′-tetramethylbenzidine. More importantly, magnetic relaxation effect of iron oxide nanozymes was found to be changed during the catalytic reaction. In addition, the relationship between the magnetic signal of nanozymes and the substrate concentration showed a good linear
dependence. Combined with the natural enzymes, the magnetic detection of iron oxide nanozymes also exhibited excellent substrate specificity. On these bases, a dual-function specific assay was constructed and further used for glucose detection. In conclusion, this study demonstrated an efficient
iron oxide nanozymes preparation method and constructed a new synergistically colorimetric-magnetic diagnosis strategy.
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Affiliation(s)
- Shihui Huang
- School of Materials Science and Engineering, Center for Functional Biomaterials, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Shuqi Jiang
- Department of Radiology, First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, P. R. China
| | - Hong Liu
- School of Materials Science and Engineering, Center for Functional Biomaterials, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Jiali Cai
- School of Materials Science and Engineering, Center for Functional Biomaterials, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Gengjia Chen
- School of Materials Science and Engineering, Center for Functional Biomaterials, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510275, P. R. China
| | - Junyao Xu
- Department of Hepatobiliary Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, P. R. China
| | - Dan Kai
- Institute of Materials Research and Engineering (IMRE), A*STAR, 2 Fusionopolis Way, Innovis, No. 08-03, Singapore 138634 Singapore
| | - Pengli Bai
- CAS Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, P. R.China
| | - Ruiping Zhou
- Department of Stomatology, Shenzhen Yantian District People’s Hospital, Shenzhen 518081, P. R. China
| | - Zhiyong Wang
- School of Materials Science and Engineering, Center for Functional Biomaterials, Key Laboratory for Polymeric Composite and Functional Materials of Ministry of Education, Sun Yat-sen University, Guangzhou 510275, P. R. China
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Leng Y, Bao J, Xiao H, Song D, Du J, Mohapatra S, Werner D, Wang J. Transformation mechanisms of tetracycline by horseradish peroxidase with/without redox mediator ABTS for variable water chemistry. CHEMOSPHERE 2020; 258:127306. [PMID: 32540533 DOI: 10.1016/j.chemosphere.2020.127306] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/31/2020] [Accepted: 06/01/2020] [Indexed: 06/11/2023]
Abstract
The threat of antibiotics in the environment causing antibiotics resistance is a global health concern. Enzymes catalyze pollutant transformations, and how commercially available enzymes like horseradish peroxidase (HRP), with or without a redox mediator, may be used to degrade antibiotics in water treatment is of great interest. This work demonstrates tetracycline transformation by HRP, and how it is significantly enhanced by free radicals created from the mediator 2,2-Azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS). Water temperature and pH strongly influence the tetracycline removal rate due to their correlation with the enzyme activity, abundance and stability of ABTS•+. Four transformation products were identified in the pure HRP system using a liquid chromatography tandem mass spectrometry hybrid quadrupole-orbitrap mass spectrometer system. Addition of 25 μmol L-1 ABTS not only accelerated the degradation of tetracycline, but also expanded the range of degradation pathways. Potential tetracycline transformation pathways are proposed based on these observations, which include a range of mechanisms such as hydroxylation, demethylation, dehydration, decarbonylation and secondary alcohol oxidation. Despite of decreased efficiency, the HRP/ABTS system was able to degrade tetracycline in a domestic wastewater treatment plant effluent matrix, which demonstrates the potential of the system to be utilized in wastewater treatment.
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Affiliation(s)
- Yifei Leng
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, PR China
| | - Jianguo Bao
- School of Environment Studies, China University of Geosciences, Wuhan, 430074, PR China.
| | - Henglin Xiao
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, PR China
| | - Dandan Song
- School of Environment Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Jiangkun Du
- School of Environment Studies, China University of Geosciences, Wuhan, 430074, PR China
| | - Sanjeeb Mohapatra
- School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, England, UK
| | - David Werner
- School of Engineering, Newcastle University, Newcastle Upon Tyne, NE1 7RU, England, UK.
| | - Jun Wang
- School of Civil Engineering, Architecture and Environment, Hubei University of Technology, Wuhan, 430068, PR China; College of Marine Sciences, South China Agricultural University, Guangzhou, 510642, China.
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Qayyum H, Maroof H, Yasha K. Remediation and treatment of organopollutants mediated by peroxidases: a review. Crit Rev Biotechnol 2009; 29:94-119. [DOI: 10.1080/07388550802685306] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Jackson AS, Sandrini A, Campbell C, Chow S, Thomas PS, Yates DH. Comparison of biomarkers in exhaled breath condensate and bronchoalveolar lavage. Am J Respir Crit Care Med 2006; 175:222-7. [PMID: 17110649 DOI: 10.1164/rccm.200601-107oc] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE Exhaled breath condensate (EBC) is increasingly studied as a noninvasive research method of sampling the lungs, measuring several biomarkers. The exact site of origin of substances measured in EBC is unknown, as is the clinical applicability of the technique. Special techniques might be needed to measure EBC biomarkers. OBJECTIVES To assess biomarker concentrations in clinical disease and investigate the site of origin of EBC, we compared EBC and bronchoalveolar lavage (BAL) biomarkers in 49 patients undergoing bronchoscopy for clinical indications. MEASUREMENTS We measured exhaled nitric oxide, 8-isoprostane, hydrogen peroxide, total nitrogen oxides, pH, total protein, and phospholipid (n = 33) and keratin (n = 15) to assess alveolar and mucinous compartments, respectively. EBC was collected over 10 min using a refrigerated condenser according to European Respiratory Society/American Thoracic Society recommendations, and BAL performed immediately thereafter. RESULTS 8-Isoprostane, nitrogen oxides, and pH were significantly higher in EBC than in BAL (3.845 vs. 0.027 ng/ml, 28.4 vs. 3.8 microM, and 7.35 vs. 6.4, respectively; p < 0.001). Hydrogen peroxide showed no difference between EBC and BAL (17.5 vs. 20.6 microM, p = not significant), whereas protein was significantly higher in BAL (33.8 vs. 183.2 microg/ml, p < 0.001). Total phospholipid was also higher in EBC, but keratin showed no difference. No significant correlation was found between EBC and BAL for any of the biomarkers evaluated either before or after correction for dilution. CONCLUSIONS In clinical disease, markers of inflammation and oxidative stress are easily measurable in EBC using standard laboratory techniques and EBC is readily obtained. However, EBC and BAL markers do not correlate.
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Affiliation(s)
- Abigail S Jackson
- Department of Thoracic Medicine, St. Vincent's Hospital, Victoria Street, Darlinghurst, Sydney, Australia
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