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Periyasamy S, Farissi S, Rayaroth MP, Kannan M, Nambi IM, Liu D. Electrochemical oxidation of Florfenicol in aqueous solution with mixed metal oxide electrode: Operational factors, reaction by-products and toxicity evaluation. CHEMOSPHERE 2024; 362:142665. [PMID: 38906192 DOI: 10.1016/j.chemosphere.2024.142665] [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: 05/30/2024] [Revised: 06/17/2024] [Accepted: 06/18/2024] [Indexed: 06/23/2024]
Abstract
Veterinary antibiotics have become an emerging pollutant in water and wastewater sources due to excess usage, toxicity and resistance to traditional water and wastewater treatment. The present study explored the degradation of a model antibiotic- Florfenicol (FF) using electrochemical oxidation (EO) with Ti-RuO2/IrO2 anode. The anode material was characterized using SEM-EDS studies expressing stable structure and optimal interaction of the neighboring metal oxides with each other. The EDS results showed the presence of Ru, Ir, Ti, O and C elements with 6.44%, 2.57%, 9.61%, 52.74% and 28.64% atomic weight percentages, respectively. Optimization studies revealed pH 5, 30 mA cm-2 current density and 0.05 M Na2SO4 for 5 mg L-1 FF achieved 90% TOC removal within 360 min treatment time. The degradation followed pseudo-first order kinetics. LC-Q-TOF-MS studies revealed six predominant byproducts illustrating hydroxylation, deflourination, and dechlorination to be the major degradation mechanisms during the electrochemical oxidation of FF. Ion chromatography studies revealed an increase in Cl-, F- and NO3- ions as treatment time progressed with Cl- decreasing after the initial phase of the treatment. Toxicity studies using Zebrafish (Danio rerio) embryo showed the treated sample to be toxic inducing developmental disorders such as pericardial edema, yolk sac edema, spinal curvature and tail malformation at 96 h post fertilization (hpf). Compared to control, delayed hatching and coagulation were observed in treated embryos. Overall, this study sets the stage for understanding the effect of mixed metal oxide (MMO) anodes on the degradation of veterinary antibiotic-polluted water and wastewater sources using electrochemical oxidation.
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Affiliation(s)
- Selvendiran Periyasamy
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India.
| | - Salman Farissi
- Department of Environmental Science, Central University of Kerala, Kasaragod, Kerala, India
| | - Manoj P Rayaroth
- Department of Life Sciences, School of Science, GITAM (Deemed to be) University, Visakhapatnam-530045, India
| | - Maharajan Kannan
- Department of Zoology, University of Allahabad, Prayagraj-211002, India
| | - Indumathi M Nambi
- Environmental and Water Resources Division, Department of Civil Engineering, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, India
| | - Dezhao Liu
- College of Bio-systems Engineering and Food Science, Zhejiang University, Hangzhou, 310058, China
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Tang XY, Yin WM, Yang G, Cui JF, Cheng JH, Yang F, Li XY, Wu CY, Zhu SG. Biochar reduces antibiotic transport by altering soil hydrology and enhancing antibiotic sorption. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134468. [PMID: 38703680 DOI: 10.1016/j.jhazmat.2024.134468] [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: 01/31/2024] [Revised: 04/23/2024] [Accepted: 04/27/2024] [Indexed: 05/06/2024]
Abstract
The performance of biochar (BC) in reducing the transport of antibiotics under field conditions has not been sufficiently explored. In repacked sloping boxes of a calcareous soil, the effects of different BC treatments on the discharge of three relatively weakly sorbing antibiotics (sulfadiazine, sulfamethazine, and florfenicol) via runoff and drainage were monitored for three natural rain events. Surface application of 1 % BC (1 %BC-SA) led to the most effective reduction in runoff discharge of the two sulfonamide antibiotics, which can be partly ascribed to the enhanced water infiltration. The construction of 5 % BC amended permeable reactive wall (5 %BC-PRW) at the lower end of soil box was more effective than the 1 %BC-SA treatment in reducing the leaching of the most weakly sorbing antibiotic (florfenicol), which can be mainly ascribed to the much higher plant available and drainable water contents in the 5 %BC-PRW soil than in the unamended soil. The results of this study highlight the importance of BC's ability to regulate flow pattern by modifying soil hydraulic properties, which can make a significant contribution to the achieved reduction in the transport of antibiotics offsite or to groundwater.
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Affiliation(s)
- Xiang-Yu Tang
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China; Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610299, China.
| | - Wen-Min Yin
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610299, China; Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Guang Yang
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610299, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun-Fang Cui
- Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu 610299, China
| | - Jian-Hua Cheng
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Fei Yang
- Institute of Tropical Agriculture and Forestry, Hainan University, Haikou 570228, China
| | - Xiao-Yu Li
- State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou 311300, China
| | - Chun-Yan Wu
- Institute of Environment Resource and Soil Fertilizer, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
| | - Sen-Gen Zhu
- Zhejiang Honggaitou Agricultural Science and Technology Co., Ltd, Quzhou 324109, China
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Wang F, Liu P, Li J, Xu S, Chen H, Xie L. Effects of four antibiotics on the photosynthetic light reactions in the green alga Chlorella pyrenoidosa. Comp Biochem Physiol C Toxicol Pharmacol 2024; 281:109927. [PMID: 38643813 DOI: 10.1016/j.cbpc.2024.109927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 04/23/2024]
Abstract
Antibiotics are ubiquitously present in aquatic environments, posing a serious ecological risk to aquatic ecosystems. However, the effects of antibiotics on the photosynthetic light reactions of freshwater algae and the underlying mechanisms are relatively less understood. In this study, the effects of 4 representative antibiotics (clarithromycin, enrofloxacin, tetracycline, and sulfamethazine) on a freshwater alga (Chlorella pyrenoidosa) and the associated mechanisms, primarily focusing on key regulators of the photosynthetic light reactions, were evaluated. Algae were exposed to different concentrations of clarithromycin (0.0-0.3 mg/L), enrofloxacin (0.0-30.0 mg/L), tetracycline (0.0-10.0 mg/L), and sulfamethazine (0.0-50.0 mg/L) for 7 days. The results showed that the 4 antibiotics inhibited the growth, the photosynthetic pigment contents, and the activity of antioxidant enzymes. In addition, exposure to clarithromycin caused a 118.4 % increase in malondialdehyde (MDA) levels at 0.3 mg/L. Furthermore, the transcripts of genes for the adenosine triphosphate (ATP) - dependent chloroplast proteases (ftsH and clpP), genes in photosystem II (psbA, psbB, and psbC), genes related to ATP synthase (atpA, atpB, and atpH), and petA (related to cytochrome b6/f complex) were altered by clarithromycin. This study contributes to a better understanding of the risk of antibiotics on primary producers in aquatic environment.
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Affiliation(s)
- Feifan Wang
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Ping Liu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Jiajun Li
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Siting Xu
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
| | - Hongxing Chen
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China.
| | - Lingtian Xie
- SCNU Environmental Research Institute, Guangdong Provincial Key Laboratory of Chemical Pollution and Environmental Safety, MOE Key Laboratory of Theoretical Chemistry of Environment, South China Normal University, Guangzhou 510006, China; School of Environment, South China Normal University, University Town, Guangzhou 510006, China
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4
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Zhang F, Chen J, Zhao F, Liu M, Peng K, Pu Y, Sang Y, Wang S, Wang X. Microfabrication of engineered Lactococcus lactis biocarriers with genetically programmed immunorecognition probes for sensitive lateral flow immunoassay of antibiotic in milk and lake water. Biosens Bioelectron 2024; 252:116139. [PMID: 38412686 DOI: 10.1016/j.bios.2024.116139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Revised: 01/20/2024] [Accepted: 02/17/2024] [Indexed: 02/29/2024]
Abstract
Micro/nanomaterials display considerable potential for increasing the sensitivity of lateral flow immunoassay (LFIA) by acting as 3D carriers for both antibodies and signals. The key to achieving high detection sensitivity depends on the probe's orientation on the material surface and its multivalent biomolecular interactions with targets. Here, we engineer Lactococcus lactis as the bacterial microcarrier (BMC) for a multivalent immunorecognition probe that was genetically programmed to display multifunctional components including a phage-screened single-chain variable fragment (scFv), an enhanced green fluorescent protein (eGFP), and a C-terminal peptidoglycan-binding domain (AcmA) anchored on BMC through the cell wall peptidoglycan. The innovative design of this biocarrier system, which incorporates a lab-on-a-chip microfluidic device, allows for the rapid and non-destructive self-assembly of the multivalent scFv-eGFP-AcmA@BMC probe, in which the 3D structure of BMC with a large peptidoglycan surface area facilitates the precisely orientated attachment and immobilization of scFv-eGFP-AcmA. This leads to a remarkable fluorescence aggregation amplification effect in LFIA, outperforming a monovalent 2D scFv-eGFP-AcmA probe for florfenicol detection. By designing a portable sensing device, we achieved an exceptionally low detection limit of 0.28 pg/mL and 0.21 pg/mL for florfenicol in lake water and milk sample, respectively. The successful microfabrication of this biocarrier holds potential to inspire innovative biohybrid designs for environment and food safety biosensing applications.
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Affiliation(s)
- Fuyuan Zhang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Jiajie Chen
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Fangkun Zhao
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Minxuan Liu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Kaige Peng
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Yuanhao Pu
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Yaxin Sang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China
| | - Shuo Wang
- Medical College, Nankai University, Tianjin, 300500, China.
| | - Xianghong Wang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, 071001, China.
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5
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Peregrina-Lucano AA, Mendoza-Michel J, Rodríguez-Arreola A, Peña-Velasco G. Detection of Pharmaceutically Active Compounds in Tap Water Samples by Direct Injection HPLC/MS-MS: A Danger Signal in Deficiency in Residue Management. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2024; 112:67. [PMID: 38668895 DOI: 10.1007/s00128-024-03897-8] [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: 01/20/2024] [Accepted: 04/15/2024] [Indexed: 05/27/2024]
Abstract
To date, there is an increased risk to public health and the environment due to the presence of pharmaceutically active compounds within drinking water supply and distribution networks. Owing to this, a direct injection-HPLC/MS-MS method was developed for the simultaneous determination of 16 active pharmaceutical compounds in tap water samples: amoxicillin, ampicillin, cephalexin, cefotaxime, cefuroxime, ciprofloxacin, clarithromycin, clindamycin, chloramphenicol, cyproterone, erythromycin, flutamide, spironolactone, sulfamethoxazole, tamoxifen, and trimethoprim. Limits of detection (LOD) ranged from 0.2 to 6.0 µg/L while quantification limits (LOQ) from 0.3 to 20 µg/L. Recovery percentages were between 70 and 125%. Total analysis time was short, with all compounds being resolved in less than 2.1 min. Of the 22 tap water samples collected and analyzed, the highest concentrations corresponded to amoxicillin (147 µg/L) and ciprofloxacin (44 µg/L). The findings could set a precedent for establishing safe levels of these compounds and increasing standards for tap water quality in this region.
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Affiliation(s)
| | | | | | - Gabriela Peña-Velasco
- Polytechnic University of the Metropolitan Area of Guadalajara, Av. Adolf Bernard Horn Junior 8941, Cajititlán, C.P. 45670, México.
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6
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Ramos JGVDS, Richter CP, Silva MA, Singolano GL, Hauagge G, Lorençon E, Junior ILC, Edwiges T, de Arruda PV, Vidal CMDS. Effects of ciprofloxacin on biogas production and microbial community composition in anaerobic digestion of swine wastewater in ASBR type reactor. ENVIRONMENTAL TECHNOLOGY 2024; 45:2076-2088. [PMID: 36621001 DOI: 10.1080/09593330.2022.2164744] [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: 09/22/2022] [Accepted: 12/26/2022] [Indexed: 06/17/2023]
Abstract
In swine farming, antibiotics are often used to reduce disease and promote animal growth. Part of these compounds is not absorbed by the swine body, being excreted and later reaching the treatment systems, soil, and nearby waterbodies. This research sought to investigate the influence of adding ciprofloxacin (CIP) on the anaerobic digestion of swine wastewater. For that, a bench-scale anaerobic sequential batch reactor (ASBR) was used, with 5 L of working volume in six different phases, with volumetric organic loading rate (VOLR) and CIP dosage variation. According to the results, the optimal VOLR for the reactor was 0.60 ± 0.11 gSV L-1 d-1, resulting in biogas productivity of 0.51 ± 0.03 Lbiogas L-1 d-1. After initial stability, adding substrate with 0.5 mgCIP L-1 resulted in an abrupt drop of 82% in the productivity from the 7th to 11th day of addition, coinciding with volatile acids accumulation. Afterward, the reactor recovered and reached apparent stability, with productivity similar to the previous step without the drug. For 2.5 mgCIP L-1 in the substrate, the biogas productivity at equilibrium was 11.8% lower than in the phases with the same VOLR and 0.0 and 0.5 mgCIP L-1. Organic matter removals near 80% were achieved for both dosages. The 16S rRNA metagenomic analyses showed an increase in the relative abundance of most of the phyla found, indicating that the dosages used allowed the acclimatization of microorganisms and possibly the compound biodegradation.
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Affiliation(s)
- José Gustavo Venâncio da Silva Ramos
- Civil Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
- Technical Residency in Environmental Engineering and Management, State University of Ponta Grossa (UEPG), Ponta Grossa, Brazil
| | - Camila Palacio Richter
- Bioprocess and Biotechnology Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
| | - Maria Alice Silva
- Bioprocess and Biotechnology Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
| | - Giordana Longo Singolano
- Civil Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
| | - Gabriel Hauagge
- Bioprocess and Biotechnology Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
| | - Eduarda Lorençon
- Bioprocess and Biotechnology Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
| | | | - Thiago Edwiges
- Biological and Environmental Sciences, The Federal University of Technology - Paraná (UTFPR), Medianeira, Brazil
| | - Priscila Vaz de Arruda
- Bioprocess and Biotechnology Engineering Academic Department, The Federal University of Technology - Paraná (UTFPR), Toledo, Brazil
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Chen Z, Chen J, Tan S, Yang Z, Zhang Y. Dechlorination Helps Defluorination: Insights into the Defluorination Mechanism of Florfenicol by S-nZVI and DFT Calculations on the Reaction Pathways. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:2542-2553. [PMID: 38262936 DOI: 10.1021/acs.est.3c07435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Defluorination is essential to eliminate the antibiotic resistance and detrimental effects of florfenicol (C12H14Cl2FNO4S, FF), which is achievable by sulfidated nanoscale zerovalent iron (S-nZVI), yet a comprehensive understanding of the mechanism is lacking. Herein, we used experimental data and density functional theory calculations to demonstrate four dechlorination-promoted defluorination pathways of FF, depending on S-nZVI or not. FF was defluorinated in a rapid and then slow but continuous manner, accompanying a consecutive dechlorination to deschloro (dFF) and dideschloro FF (ddFF). Unexpectedly, the predominant defluorination occurs by spontaneous hydrolysis of ddFF to form the hydrolyzed byproduct (HO-ddFF), i.e., independent of S-nZVI, which is initiated by intramolecular attack from carbonyl O to alkyl F and is thus limited for FF and dFF owing to the diminished nucleophilicity by electron-withdrawing Cl. The removal of Cl also makes the reductive defluorination of ddFF by S-nZVI amenable. The other two minor but more rapid defluorination pathways occur in synergy with the dechlorination of FF and dFF, which are mediated by the reactive carbanion intermediates and generate HO-dFF and HO-ddFF, respectively. The reliability of these dechlorination-facilitated defluorination pathways was verified by the consistency of theoretical calculations with experimental data, providing valuable insights into the degradation of fluorinated contaminants.
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Affiliation(s)
- Zhenhuan Chen
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310030, China
| | - Jingdan Chen
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310030, China
- College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Shendong Tan
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310030, China
| | - Zilin Yang
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310030, China
| | - Yanyan Zhang
- Research Center for Industries of the Future, Westlake University, Hangzhou 310030, China
- Key Laboratory of Coastal Environment and Resources of Zhejiang Province, School of Engineering, Westlake University, Hangzhou 310030, China
- Institute of Advanced Technology, Westlake Institute for Advanced Study, Hangzhou 310030, China
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Kang Y, Lu Y, Wang S. Study on the Direct and Indirect Photolysis of Antibacterial Florfenicol in Water Using DFT/TDDFT Method and Comparison of Its Reactivity with Hydroxyl Radical under the Effect of Metal Ions. TOXICS 2024; 12:127. [PMID: 38393222 PMCID: PMC10891592 DOI: 10.3390/toxics12020127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 01/25/2024] [Accepted: 02/01/2024] [Indexed: 02/25/2024]
Abstract
Florfenicol (FLO) is a widely used antibacterial drug, which is often detected in the environment. In this paper, the photolysis mechanism of FLO in water was investigated using density functional theory (DFT) and time-dependent density functional theory (TDDFT). The focus of the study is to elucidate the direct photolysis mechanism of FLO in the water environment and the indirect photolysis of free radicals (·OH, ·NO3, and ·SO4-) as active species. The effect of metal ions Ca2+/Mg2+/Zn2+ on the indirect photolysis was also investigated. The results show that the direct photolysis of FLO involves C-C/C-N/C-S bond cleavage, the C5-S7 bond cleavage is most likely to occur, and the C17-C18 cleavage reaction is not easy to occur during the direct photodegradation of FLO. The indirect photolysis of FLO is more likely to occur in the environment than direct photolysis. The main indirect photolysis involves OH-addition, NO3-addition, and SO4-addition on benzene ring. The order of difficulty in the indirect photolysis with ·OH is C2 > C3 > C4 > C5 > C6 > C1, Ca2+ can promote the indirect photolysis with ·OH, and Mg2+/Zn2+ has a dual effect on the indirect photolysis with ·OH. In other words, Mg2+ and Zn2+ can inhibit or promote the indirect photolysis with ·OH. These studies provide important information for theoretical research on the environmental behavior and degradation mechanism of drug molecules.
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Affiliation(s)
| | | | - Se Wang
- Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (Y.K.); (Y.L.)
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9
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Bai Y, Ji B. Advances in responses of microalgal-bacterial symbiosis to emerging pollutants in wastewater. World J Microbiol Biotechnol 2023; 40:40. [PMID: 38071273 DOI: 10.1007/s11274-023-03819-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2023] [Accepted: 10/25/2023] [Indexed: 12/18/2023]
Abstract
Nowadays, emerging pollutants are widely used and exist in wastewater, such as antibiotics, heavy metals, nanoparticle and microplastic. As a green alternative for wastewater treatment, microalgal-bacterial symbiosis has been aware of owning multiple merits of low energy consumption and little greenhouse gas emission. Thus, the responses of microalgal-bacterial symbiosis to emerging pollutants in wastewater treatment have become a hotspot in recent years. In this review paper, the removal performance of microalgal-bacterial symbiosis on organics, nitrogen and phosphorus in wastewater containing emerging pollutants has been summarized. The adaptation mechanisms of microalgal-bacterial symbiosis to emerging pollutants have been analyzed. It is found that antibiotics usually have hormesis effects on microalgal-bacterial symbiosis, and that microalgal-bacterial symbiosis appears to show more capacity to remove tetracycline and sulfamethoxazole, rather than oxytetracycline and enrofloxacin. Generally, microalgal-bacterial symbiosis can adapt to heavy metals at a concentration of less than 1 mg/L, but its capabilities to remove contaminants can be significantly affected at 10 mg/L heavy metals. Further research should focus on the influence of mixed emerging pollutants on microalgal-bacterial symbiosis, and the feasibility of using selected emerging pollutants (e.g., antibiotics) as a carbon source for microalgal-bacterial symbiosis should also be explored. This review is expected to deepen our understandings on emerging pollutants removal from wastewater by microalgal-bacterial symbiosis.
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Affiliation(s)
- Yang Bai
- Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan, 430065, China
| | - Bin Ji
- Department of Water and Wastewater Engineering, School of Urban Construction, Wuhan University of Science and Technology, Wuhan, 430065, China.
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10
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Wei XL, Xu YC, Tan XY, Lv WH, Zhang DG, He Y, Luo Z. Enrofloxacin (ENR) exposure induces lipotoxicity by promoting mitochondrial fragmentation via dephosphorylation of DRP1 at S627 site. CHEMOSPHERE 2023; 340:139892. [PMID: 37611774 DOI: 10.1016/j.chemosphere.2023.139892] [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: 01/30/2023] [Revised: 08/16/2023] [Accepted: 08/18/2023] [Indexed: 08/25/2023]
Abstract
Enrofloxacin (ENR) is a kind of widespread hazardous pollutant on aquatic ecosystems and causes toxic effects, such as disorders of metabolism, on aquatic animals. However, its potential mechanisms at an environmental concentration on metabolic disorders of aquatic organisms remain unclear. Herin, we found that hepatic lipotoxicity was induced by ENR exposure, which led to ENR accumulation, oxidative stress, mitochondrial fragmentation, and fatty acid transfer blockage from lipid droplets into fragmented mitochondria. ENR-induced lipotoxicity and mitochondrial β-oxidation down-regulation were mediated by reactive oxygen species (ROS). Moreover, dynamin-like protein 1 (DRP1) mediated ENR-induced mitochondrial fragmentation and changes of lipid metabolism. Mechanistically, ENR induced increment of DRP1 mitochondrial localization via dephosphorylating DRP1 at S627 and promoted its interaction with mitochondrial fission factor (MFF), leading to mitochondria fragmentation. For the first time, our study provides an innovative mechanistic link between hepatic lipotoxicity and mitochondrial fragmentation under ENR exposure, and thus identifies previously unknown mechanisms for the direct relationship between environmental ENR concentration and lipotoxicity in aquatic animals. Our study provides innovative insights for toxicological mechanisms and environmental risk assessments of antibiotics in aquatic environment.
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Affiliation(s)
- Xiao-Lei Wei
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yi-Chuang Xu
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xiao-Ying Tan
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Wu-Hong Lv
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Dian-Guang Zhang
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yang He
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China
| | - Zhi Luo
- Hubei Hongshan Laboratory, Fishery College, Huazhong Agricultural University, Wuhan, 430070, China; Laboratory for Marine Fisheries Science and Food Production Processes, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China.
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11
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Delgado N, Orozco J, Zambrano S, Casas-Zapata JC, Marino D. Veterinary pharmaceutical as emerging contaminants in wastewater and surface water: An overview. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132431. [PMID: 37688873 DOI: 10.1016/j.jhazmat.2023.132431] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/24/2023] [Accepted: 08/27/2023] [Indexed: 09/11/2023]
Abstract
Veterinary pharmaceuticals have become of interest due to their indiscriminate use. Thus, this paper compiles studies on detection in surface and wastewater, and the treatment applied for their removal. Additionally, a case study was performed to evaluate its commercialization, as the ecological risk assessment for the most relevant compounds. 241 compounds were detected. The highest concentrations were found for antibiotics such as oxytetracycline, amoxicillin, and monensin, with values up to 3732.4 µg/L. Biological treatments have been mainly reported, obtaining removal greater than 80% for sulfadiazine, sulfamethazine, sulfamethoxazole, enrofloxacin, and oxytetracycline. Considering the case study, enrofloxacin and oxytetracycline were widely commercialized. Finally, there was a low risk for the species exposed to enrofloxacin, in contrast, the species exposed to oxytetracycline presented a high risk of long-term mortality. Concluding that veterinary compounds have emerged as a significant concern regarding water source contamination, owing to their potential adverse effects on aquatic biota and even human. This is particularly relevant because many water bodies that receive wastewater are utilized for drinking water purposes. Consequently, the development of comprehensive, full-scale systems for efficient antibiotic removal before their introduction into water sources becomes imperative. Equally important is the need to reconsider their extensive use altogether.
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Affiliation(s)
- Nasly Delgado
- Grupo de Ciencia e Ingeniería en Sistemas Ambientales, Facultad de Ingeniería Civil, Universidad del Cauca, Carrera 2# 15N, Popayán 190002, Colombia.
| | - Jessica Orozco
- Grupo de Ciencia e Ingeniería en Sistemas Ambientales, Facultad de Ingeniería Civil, Universidad del Cauca, Carrera 2# 15N, Popayán 190002, Colombia
| | - Santiago Zambrano
- Grupo de Ciencia e Ingeniería en Sistemas Ambientales, Facultad de Ingeniería Civil, Universidad del Cauca, Carrera 2# 15N, Popayán 190002, Colombia
| | - Juan C Casas-Zapata
- Grupo de Ciencia e Ingeniería en Sistemas Ambientales, Facultad de Ingeniería Civil, Universidad del Cauca, Carrera 2# 15N, Popayán 190002, Colombia
| | - Damián Marino
- Centro de Investigaciones del Medio Ambiente, Facultad de Ciencias Exactas, Universidad Nacional de la Plata (UNLP), 47y 115, La Plata 1900, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, La Plata, Argentina
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12
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Hain E, He K, Batista-Andrade JA, Feerick A, Tarnowski M, Timm A, Blaney L. Geospatial and co-occurrence analysis of antibiotics, hormones, and UV filters in the Chesapeake Bay (USA) to confirm inputs from wastewater treatment plants, septic systems, and animal feeding operations. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132405. [PMID: 37651932 DOI: 10.1016/j.jhazmat.2023.132405] [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: 06/27/2023] [Revised: 08/07/2023] [Accepted: 08/24/2023] [Indexed: 09/02/2023]
Abstract
Previous studies have reported select contaminants of emerging concern (CECs) in limited areas of the Chesapeake Bay (USA), but no comprehensive efforts have been conducted. In this work, 43 antibiotics, 9 hormones, 11 UV filters, and sucralose, were measured in matched water, sediment, and oyster samples from 58 sites. The highest sucralose concentration was 3051 ng L-1 in a subwatershed with 4.43 million liters of wastewater effluent per day (MLD) and 4385 septic systems. Although antibiotic occurrence was generally low in subwatersheds located in less populated areas, 102 ng L-1 ciprofloxacin was detected downstream of 0.58 MLD wastewater effluent and 10 animal feeding operations. Hormones were not regularly detected in water (2%) or oysters (37%), but the high detection frequencies in sediment (74%) were associated with septic systems. UV filters were ubiquitously detected in oysters, and octisalate exhibited the highest concentration (423 ng g-1). Oyster-phase oxybenzone and aqueous-phase sucralose concentrations were significantly correlated to wastewater effluent and septic systems, respectively. Toxicity outcomes were predicted for homosalate and octisalate throughout the Bay, and antimicrobial resistance concerns were noted for the Chester River. The geospatial and co-occurrence relationships constitute crucial advances to understanding CEC occurrence in the Chesapeake Bay and elsewhere.
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Affiliation(s)
- Ethan Hain
- University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Ke He
- University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Jahir A Batista-Andrade
- University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Anna Feerick
- University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA
| | - Mitchell Tarnowski
- Maryland Department of Natural Resources, 580 Taylor Ave, B-2, Annapolis, MD 21401, USA
| | - Anne Timm
- USDA Forest Service, Northern Research Station, 5523 Research Park Drive, Suite 350, Baltimore, MD 21228, USA
| | - Lee Blaney
- University of Maryland Baltimore County, Department of Chemical, Biochemical, and Environmental Engineering, 1000 Hilltop Circle, Engineering 314, Baltimore, MD 21250, USA.
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13
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Dai Y, Peng JJ, Zhang TY, Xie XP, Luo SS, Liu WC, Ma Y. Effects of antibiotics (enrofloxacin) on microbial community of water and sediment in an aquatic ecological model. Front Vet Sci 2023; 10:1151988. [PMID: 37323836 PMCID: PMC10267828 DOI: 10.3389/fvets.2023.1151988] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 05/10/2023] [Indexed: 06/17/2023] Open
Abstract
In order to explore the impact of antibiotics (enrofloxacin) on microbial community in aquatic environment, an indoor aquatic ecological model was built, and different concentrations of enrofloxacin (0.05, 0.5, 5, and 50 mg/L) were added in the aquatic ecological model. In addition, the water and sediment samples were collected on the 0, 7, 30, and 60 days, and the changes in microbial community were studied through 16S rDNA high-throughput sequencing. The results showed that when the concentration of enrofloxacin was 50 mg/L, the relative abundance of Actinomycetes was increased. In the water, the bacterial richness and diversity communities first decreased and then gradually recovered with the passage of time; On the 7th day, the diversity and richness index of species in the treatment groups with enrofloxacin at 5 and 50 mg/L decreased to the lowest; On the 30th day, the diversity and richness index of species began to rise; On the 60th day, the diversity index and richness index of water species began to increase, while the diversity index and richness index of sediment species decreased. In conclusion, the addition of enrofloxacin negatively affected the microbial community structure in an indoor aquatic ecological model, 50 mg/L enrofloxacin could increase the relative abundance of Actinomycetes, and decrease the diversity and richness index of water and sediment.
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Affiliation(s)
- Yue Dai
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Jin-Ju Peng
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Teng-Yue Zhang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Xing-Peng Xie
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Shuai-Shuai Luo
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Wen-Chao Liu
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
| | - Yi Ma
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, China
- Maoming Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Maoming, China
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Lin Z, Wan G, Wu J, Liu H, Zhang F, Tang X, Ruan J. Toxicologic effect of short-term enrofloxacin exposure on brain of Carassius auratus var. Pengze. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 869:161730. [PMID: 36681334 DOI: 10.1016/j.scitotenv.2023.161730] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 01/03/2023] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
To further explore short-term exposure of enrofloxacin (ENR) induced toxicity in crucian carp brain that has been reported by our previous work, as well as the possible toxicological mechanisms, this study investigated the blood-brain barrier (BBB) permeability to low dosage of ENR through comprehensively assessing expression of BBB constitutive molecules zonula occludens-1 (ZO-1) and permeability glycoprotein (P-gp), as well as ENR residue in brain of crucian carp. Toxicologic effect of ENR on brain tissue was determined through evaluating expression of brain-derived proteins S100B, neuron specific enolase (NSE) and glial fibrillary acidic protein (GFAP) in crucian carp brain tissue, as well as contents of the proteins in serum. The toxicological mechanisms were explored through analyzing transcriptome analysis data. Results showed that ENR possessed excellent permeability to crucian carp BBB, which was closely related to deranged BBB structure and declined ENR efflux that were attributed to downregulated expression of ZO-1 and P-gp by ENR exposure. Meanwhile, S100B, NSE and GFAP were upregulated in brain by ENR, and came out into blood across the damaged BBB. These data revealed that ENR induced disruption of BBB and damage of brain tissue in crucian carp. Transcriptome analysis data indicated that ENR induced toxicologic effect might be related to modification of metabolism, organismal systems, and genetic information processing, etc., and that PI3K/Akt, MAPK, HIF-1, and ubiquitin mediated proteolysis involved the mechanisms, most of the mechanisms were attributed to ENR induced oxidative stress in crucian carp brain.
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Affiliation(s)
- Zhen Lin
- College of Chemistry & Environmental Science, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Gen Wan
- College of Animal Science & Technology, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Jiayi Wu
- College of Chemistry & Environmental Science, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Huazhong Liu
- College of Chemistry & Environmental Science, Guangdong Ocean University, Zhanjiang 524088, PR China.
| | - Fan Zhang
- College of Animal Science & Technology, Jiangxi Agricultural University, Nanchang 330045, PR China
| | - Xiaochen Tang
- College of Fisheries, Guangdong Ocean University, Zhanjiang 524088, PR China
| | - Jiming Ruan
- College of Animal Science & Technology, Jiangxi Agricultural University, Nanchang 330045, PR China.
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15
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Yuan Q, Zhang H, Qin C, Zhang H, Wang D, Zhang Q, Zhang D, Zhao J. Impact of emerging pollutant florfenicol on enhanced biological phosphorus removal process: Focus on reactor performance and related mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 859:160316. [PMID: 36403846 DOI: 10.1016/j.scitotenv.2022.160316] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 06/16/2023]
Abstract
Florfenicol (FF), an emerging pollutant antibiotic that is difficult to biodegrade, inevitably enters sewage treatment facilities with high level. To date, however, the performance and related mechanism of FF on enhanced biological phosphorus removal (EBPR) have not been reported. In order to fill this gap, this work investigated the potential impacts of FF on EBPR and revealed the relevant mechanisms. The effect of FF on EBPR was dose-dependent, that was, low dose had no effect on EBPR, while high FF concentration inhibited EBPR. Mechanism investigation showed that FF had no effect on anaerobic phosphate release, but reduced oxic phosphorus uptake. Three-dimensional Excitation-emission Matrix fluorescence spectroscopy and X-ray photoelectron spectroscopy analysis showed that FF affected the structure and components of activated sludge extracellular polymers (EPS). High content of FF stimulated sludge to secrete more EPS. High level of FF reduced the relative abundance of microorganisms responsible for biological phosphorus removal. Microbiological community structure analysis indicated 2.0 mg FF/L increased the relative abundance of Candidatus_Competibacter and Terrimonas from 9.22 % and 12.49 % to 19.00 % and 16.28 %, respectively, but significantly reduced the relative abundance of Chinophagaceae from 11.32 % to 0.38 %, compared with the blank.
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Affiliation(s)
- Qingjiang Yuan
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Hongying Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Chengzhi Qin
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Huawei Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Dongbo Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
| | - Qiuzhuo Zhang
- Shanghai Key Lab for Urban Ecological Processes and Eco-Restoration, Shanghai 200241, China
| | - Dalei Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China
| | - Jianwei Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266520, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China.
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16
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Jiang X, Wang D, Wu W, Li F. Ecotoxicological effect of enrofloxacin on Spirulina platensis and the corresponding detoxification mechanism. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2023; 25:85-93. [PMID: 36511301 DOI: 10.1039/d2em00284a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Enrofloxacin is a widely used antibiotic targeting DNA gyrase and has become the commonly detected micropollutant in aquatic environments. Thus, the potential toxicity of enrofloxacin to Spirulina platensis which is a kind of prokaryote similar to Gram-negative bacteria has been hypothesized. However, little is known about the toxicity and degradation mechanism of enrofloxacin during the growth process of Spirulina platensis. Herein, the biomass accumulation of Spirulina platensis was stimulated to 115% of the control group by 0.1 mg L-1 enrofloxacin (10th day), which could be removed probably through the metabolism. Further increasing the enrofloxacin level to 5.0 mg L-1 almost inhibited the growth and remediation ability of Spirulina platensis for 35 days. Environmental stress also caused the variations of photosynthetic pigments (chlorophyll a and carotenoids) and primary biocomponents (proteins, lipids, and carbohydrates), reflecting the adaptation of Spirulina platensis for handling the negative effects of enrofloxacin. The detoxification mechanism was studied by identifying the degradation products of enrofloxacin, suggesting the occurrence of dealkylation and oxidation reactions primarily at the piperazine group. The decreased antimicrobial activity was confirmed by the reduced binding affinity of degradation products with enzymes. The obtained results could help us understand the role of enrofloxacin in the growth of Spirulina platensis, thus providing great support for employing Spirulina platensis in risk assessment and hazard reduction.
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Affiliation(s)
- Xiaohua Jiang
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Dabin Wang
- The State Agriculture Ministry Laboratory of Quality & Safety Risk Assessment for Tobacco, Tobacco Research Institute, Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Weiran Wu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Fengmin Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
- Sanya Oceanographic Institution, Ocean University of China, Sanya 572000, China
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17
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Li X, Zhao F, Fu C, Yang Y, Xu Q, Hao Y, Shi X, Chen D, Bi X, Gong Z, Wu S, Zhang H. Early- and whole-life exposures to florfenicol disrupts lipid metabolism and induces obesogenic effects in zebrafish (Danio rerio). CHEMOSPHERE 2022; 308:136429. [PMID: 36115475 DOI: 10.1016/j.chemosphere.2022.136429] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 08/13/2022] [Accepted: 09/09/2022] [Indexed: 06/15/2023]
Abstract
Florfenicol (FF), a widely used veterinary antibiotic, has been frequently detected in both aquatic environments and human body fluids. As a result, there is a growing concern on its health risks. Previous studies have revealed various toxicities of FF on animals, while there are relatively limited researches on its metabolic toxicity. Herein, by employing zebrafish as an in vivo model, endpoints at multiple levels of biological organization were measured to investigate the metabolic toxicity, especially disturbances on lipid metabolism, of this emerging pollutant. Our results indicated that early-life exposure (from 2 h past fertilization (hpf) to 15 days past fertilization (dpf)) to FF significantly increased body mass index (BMI) values, staining areas of visceral lipids, and triacylglycerol (TAG) and total cholesterol (TC) contents of larvae. Further, by analyzing expression patterns of genes encoding key proteins regulating lipid metabolism, our data suggested that promoted intestinal absorption and hepatic de novo synthesis of lipids, suppressed TAG decomposition, and inhibited FFA oxidation all contributed to TAG accumulation in larvae. Following whole-life exposure (from 2 hpf to 120 dpf), BMI values, TAG and TC contents all increased significantly in males, and significant increases of hepatic TAG levels were also observed in females. Moreover, FF exposure interfered with lipid homeostasis of males and females in a gender-specific pattern. Our study revealed the obesogenic effects of FF at environmentally relevant concentrations (1, 10, and 100 μg/L) and therefore will benefit assessment of its health risks. Additionally, our results showed that FF exposure caused a more pronounced obesogenic effect in zebrafish larvae than adults, as suggested by significant increases of all endpoints at individual, tissular, and molecular levels in larvae. Therefore, our study also advances the application of zebrafish larval model in assessing metabolic toxicity of chemicals, due to the higher susceptibility of larvae than adults.
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Affiliation(s)
- Xinhui Li
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Fei Zhao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China.
| | - Chen Fu
- Chengdu Academy of Environmental Sciences, Chengdu 610072, PR China
| | - Yanyu Yang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Qianru Xu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Yinfei Hao
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Xueqing Shi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Dong Chen
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Xuejun Bi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Zhilin Gong
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Shujian Wu
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
| | - Haifeng Zhang
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao 266033, PR China
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Bawa-Allah KA, Ehimiyein AO. Ecotoxicological effects of human and veterinary antibiotics on water flea (Daphnia magna). ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2022; 94:103932. [PMID: 35840088 DOI: 10.1016/j.etap.2022.103932] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 07/04/2022] [Accepted: 07/09/2022] [Indexed: 06/15/2023]
Abstract
In the present study, we assessed the ecotoxicological effects of selected human and veterinary antibiotics to D. magna. Ecological risk assessment was done by calculating the risk quotients (RQs) of the antibiotics to the species. Results showed that enrofloxacin, a veterinary fluoroquinolone antibiotic, was the most toxic against D. magna with a 48 h EC50 value of 28.59 mg/l. The binary mixture of fluoroquinolones was also more toxic to the species than binary mixtures of macrolides. Fecundity in organisms in negative control was higher than fecundity in organisms exposed to environmentally relevant concentrations of the four antibiotics. Enrofloxacin also has a moderate risk to the species with RQ values of 0.199 and 0.416 in surface waters and wastewaters, respectively. Antibiotics pose a greater ecological risk when present in mixtures in the aquatic environment. Environmental standards for pharmaceuticals should incorporate mixture toxicity data to ensure accurate protection of non-target organisms in polluted environments.
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Affiliation(s)
- Kafilat A Bawa-Allah
- Ecotoxicology Unit, Department of Zoology, University of Lagos, Akoka, Yaba, Lagos, Nigeria.
| | - Aideloje O Ehimiyein
- Ecotoxicology Unit, Department of Zoology, University of Lagos, Akoka, Yaba, Lagos, Nigeria
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Cao XQ, He SW, Liu B, Wang X, Xing SY, Cao ZH, Chen CZ, Li P, Li ZH. Exposure to enrofloxacin and depuration: Endocrine disrupting effect in juvenile grass carp (Ctenopharyngodon idella). Comp Biochem Physiol C Toxicol Pharmacol 2022; 257:109358. [PMID: 35489638 DOI: 10.1016/j.cbpc.2022.109358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2021] [Revised: 04/14/2022] [Accepted: 04/22/2022] [Indexed: 11/21/2022]
Abstract
This study aimed to determine the effects of Enrofloxacin (ENR) exposure and depuration on the disruption of thyroid function and growth of juvenile grass carp (Ctenopharyngodon idella) as well as to assess the risk of ENR exposure to human health. Juvenile grass carp were treated with ENR solutions at different concentration gradients for 21 days and then depurated for 14 days. The results indicated ENR accumulation in the juvenile grass carp muscles, which persisted after depuration. In addition, exposure to ENR could alter growth by regulating the expression of genes associated with growth hormone/insulin-like growth factor (GH)/IGF) axis and the hypothalamic-pituitary-thyroid (HPT) axis. During ENR exposure, no significant changes in growth hormone levels were observed; however, a significant increase in the growth hormone level was noted. GH/IGF axis-related genes were upregulated after ENR exposure, and their expression levels remained high after depuration. Notably, a significant increase in the serum triiodothyronine (T3) and thyroxine (T4) levels coincided with the upregulation of HPT axis-related genes in both exposure and depuration treatments, and their expression levels remained high after depuration. Therefore, juvenile grass carp exposure to ENR induces physiological stress through HPT and GH/IGF axes that cannot be recovered after depuration. ENR accumulates in the muscles of juvenile grass carp and may pose a threat to human health. Therefore, exposure of juvenile grass carp to ENR results in impaired thyroid function and impaired growth. In addition, consumption of ENR-exposed fish poses human health risks.
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Affiliation(s)
- Xu-Qian Cao
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Shu-Wen He
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Bin Liu
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Xu Wang
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Shao-Ying Xing
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | - Zhi-Han Cao
- Marine College, Shandong University, Weihai, Shandong 264209, China
| | | | - Ping Li
- Marine College, Shandong University, Weihai, Shandong 264209, China.
| | - Zhi-Hua Li
- Marine College, Shandong University, Weihai, Shandong 264209, China.
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20
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Efficient Removal of Methylene Blue and Ciprofloxacin from Aqueous Solution Using Flower-like, Nanostructured ZnO Coating under UV Irradiation. NANOMATERIALS 2022; 12:nano12132193. [PMID: 35808029 PMCID: PMC9267983 DOI: 10.3390/nano12132193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/22/2022] [Accepted: 06/23/2022] [Indexed: 11/16/2022]
Abstract
Flower-like ZnO architectures assembled with many nanorods were successfully synthesized through Thermionic Vacuum Arc, operated both in direct current (DC-TVA) and a pulsed mode (PTVA), and coupled with annealing in an oxygen atmosphere. The prepared coatings were analysed by scanning-electron microscopy with energy-dispersive X-ray-spectroscopy (SEM-EDX), X-ray-diffraction (XRD), and photoluminescence (PL) measurements. By simply modifying the TVA operation mode, the morphology and uniformity of ZnO nanorods can be tuned. The photocatalytic performance of synthesized nanostructured ZnO coatings was measured by the degradation of methylene-blue (MB) dye and ciprofloxacin (Cipro) antibiotic. The ZnO (PTVA) showed enhancing results regarding the photodegradation of target contaminants. About 96% of MB molecules were removed within 60 min of UV irradiation, with a rate constant of 0.058 min−1, which is almost nine times higher than the value of ZnO (DC-TVA). As well, ZnO (PTVA) presented superior photocatalytic activity towards the decomposition of Cipro, after 240 min of irradiation, yielding 96% degradation efficiency. Moreover, the agar-well diffusion assay performance against both Gram-positive and Gram-negative bacteria confirms the degradation of antibiotic molecules by the UV/ZnO (PTVA) approach, without the formation of secondary hazardous products during the photocatalysis process. Repeated cyclic usage of coatings revealed excellent reusability and operational stability.
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Enrofloxacin—The Ruthless Killer of Eukaryotic Cells or the Last Hope in the Fight against Bacterial Infections? Int J Mol Sci 2022; 23:ijms23073648. [PMID: 35409007 PMCID: PMC8998546 DOI: 10.3390/ijms23073648] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/22/2022] [Accepted: 03/24/2022] [Indexed: 01/18/2023] Open
Abstract
Enrofloxacin is a compound that originates from a group of fluoroquinolones that is widely used in veterinary medicine as an antibacterial agent (this antibiotic is not approved for use as a drug in humans). It reveals strong antibiotic activity against both Gram-positive and Gram-negative bacteria, mainly due to the inhibition of bacterial gyrase and topoisomerase IV enzymatic actions. The high efficacy of this molecule has been demonstrated in the treatment of various animals on farms and other locations. However, the use of enrofloxacin causes severe adverse effects, including skeletal, reproductive, immune, and digestive disorders. In this review article, we present in detail and discuss the advantageous and disadvantageous properties of enrofloxacin, showing the benefits and risks of the use of this compound in veterinary medicine. Animal health and the environmental effects of this stable antibiotic (with half-life as long as 3–9 years in various natural environments) are analyzed, as are the interesting properties of this molecule that are expressed when present in complexes with metals. Recommendations for further research on enrofloxacin are also proposed.
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22
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Adeleye AS, Xue J, Zhao Y, Taylor AA, Zenobio JE, Sun Y, Han Z, Salawu OA, Zhu Y. Abundance, fate, and effects of pharmaceuticals and personal care products in aquatic environments. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127284. [PMID: 34655870 DOI: 10.1016/j.jhazmat.2021.127284] [Citation(s) in RCA: 99] [Impact Index Per Article: 49.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 09/06/2021] [Accepted: 09/16/2021] [Indexed: 06/13/2023]
Abstract
Pharmaceuticals and personal care products (PPCPs) are found in wastewater, and thus, the environment. In this study, current knowledge about the occurrence and fate of PPCPs in aquatic systems-including wastewater treatment plants (WWTPs) and natural waters around the world-is critically reviewed to inform the state of the science and highlight existing knowledge gaps. Excretion by humans is the primary route of PPCPs entry into municipal wastewater systems, but significant contributions also occur through emissions from hospitals, PPCPs manufacturers, and agriculture. Abundance of PPCPs in raw wastewater is influenced by several factors, including the population density and demography served by WWTPs, presence of hospitals and drugs manufacturers in the sewershed, disease burden of the population served, local regulations, and climatic conditions. Based on the data obtained from WWTPs, analgesics, antibiotics, and stimulants (e.g., caffeine) are the most abundant PPCPs in raw wastewater. In conventional WWTPs, most removal of PPCPs occurs during secondary treatment, and overall removal exceeds 90% for treatable PPCPs. Regardless, the total PPCP mass discharged with effluent by an average WWTP into receiving waters (7.35-20,160 g/day) is still considerable, because potential adverse effects of some PPCPs (such as ibuprofen) on aquatic organisms occur within measured concentrations found in surface waters.
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Affiliation(s)
- Adeyemi S Adeleye
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA.
| | - Jie Xue
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Yixin Zhao
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Alicia A Taylor
- Ecological and Biological Sciences Practice, Exponent, Inc., Oakland, CA 94612, USA
| | - Jenny E Zenobio
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Yian Sun
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA; Water-Energy Nexus Center, University of California, Irvine, CA 92697-2175, USA
| | - Ziwei Han
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Omobayo A Salawu
- Department of Civil and Environmental Engineering, University of California, Irvine, CA 92697-2175, USA
| | - Yurong Zhu
- Department of Chemical and Biomolecular Engineering, University of California, Irvine, CA 92697-2580, USA
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23
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Rosas-Ramírez JR, Orozco-Hernández JM, Elizalde-Velázquez GA, Raldúa D, Islas-Flores H, Gómez-Oliván LM. Teratogenic effects induced by paracetamol, ciprofloxacin, and their mixture on Danio rerio embryos: Oxidative stress implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150541. [PMID: 34601175 DOI: 10.1016/j.scitotenv.2021.150541] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/26/2021] [Accepted: 09/19/2021] [Indexed: 06/13/2023]
Abstract
Even though the toxic effects of paracetamol (PCM) and ciprofloxacin (CPX) have been deeply studied in the last decades, the impact of the PCM-CPX mixture may induce in aquatic organisms is poorly known. Thus, the objective of this work was to investigate the teratogenic effects and oxidative stress that PCM, CPX, and their mixture induce in Danio rerio embryos. Moreover, we aimed to determine whether the PCM-CPX mixture induces more severe effects on the embryos than the individual drugs. For this purpose, zebrafish embryos (4 hpf) were exposed to environmentally relevant concentrations of PCM, CPX, and their mixture until 96 hpf. In addition, at 72 hpf and 96 hpf, we also evaluated the oxidative stress biomarkers (superoxide dismutase, catalase, glutathione peroxidase, lipid peroxidation, and hydroperoxides and carbonyl content) in the embryos. Our results demonstrated that PCM, CPX, and their mixture reduced the survival rate of embryos by up to 75%. In addition, both drugs, induced morphological alterations in the embryos, causing their death. The most observed malformations were: scoliosis, craniofacial malformations, hypopigmentation, growth retardation, pericardial edema. Concerning oxidative stress, our integrated biomarkers response (IBR) analysis demonstrated that PCM, CPX, and their mixture induce oxidative damage on the embryos. In conclusion, PCM, CPX, and their mixture can alter zebrafish embryonic development via an oxidative stress response.
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Affiliation(s)
- Jonathan Ricardo Rosas-Ramírez
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - José Manuel Orozco-Hernández
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Gustavo Axel Elizalde-Velázquez
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Demetrio Raldúa
- Institute of Environmental Assessment and Water Research (IDAEA-CSIC), Jordi Girona 18, 08034 Barcelona, Spain
| | - Hariz Islas-Flores
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Leobardo Manuel Gómez-Oliván
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón Intersección Paseo Tollocan s/n, Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico.
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24
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Karuppusamy N, Mariyappan V, Chen SM, Ramachandran R. A novel electrochemical sensor for the detection of enrofloxacin based on a 3D flower-like metal tungstate-incorporated reduced graphene oxide nanocomposite. NANOSCALE 2022; 14:1250-1263. [PMID: 34994758 DOI: 10.1039/d1nr06343j] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In recent times, metal tungstates have received a lot of attention in various research fields. Accordingly, the CaWO4/RGO (CW/RGO) nanocomposite was prepared by a facile hydrothermal method. The electrocatalytic performance of the hydrothermally prepared CW/RGO nanocomposite was used for the electrochemical detection of the antibiotic medicine enrofloxacin (ENF). The electrocatalytic oxidation performance of ENF was examined by cyclic voltammetry (CV) and amperometry (AMP) techniques. The CV results showed the lowest anodic peak potential and the enhanced anodic peak current response compared to the other modified electrodes. Mainly, our newly proposed sensor exhibited excellent electrochemical performance with the lowest limit of detection (LOD) of 0.021 μM, and a significant linear range of 0.001-115 μM. Additionally, our proposed sensor exhibited good selectivity, great long-term stability, and excellent reproducibility. Then, our proposed sensor was successfully applied to detect the amount of ENF in a milk sample and river water, which exhibited good satisfactory results.
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Affiliation(s)
- Naveen Karuppusamy
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Vinitha Mariyappan
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Shen-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No.1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan.
| | - Rasu Ramachandran
- Department of Chemistry, The Madura College, Vidya Nagar, Madurai 625 011, Tamil Nadu, India
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25
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A Taguchi approach with electron-beam irradiation to optimize the efficiency of removing enrofloxacin from aqueous media. KOREAN J CHEM ENG 2022. [DOI: 10.1007/s11814-021-0995-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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26
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Maleki F, Daneshfar A. Synthesis of surface dual-template molecularly imprinted silica nanoparticles for extraction of ciprofloxacin and norfloxacin. NEW J CHEM 2022. [DOI: 10.1039/d2nj04429c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Synthesis of selective dual-template molecularly imprinted silica nanoparticles (MI-SiNPs) on the surface of graphene quantum dots (GQDs) for the simultaneous extraction of ciprofloxacin (CIP) and norfloxacin (NOR) from biological samples.
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Affiliation(s)
- Farideh Maleki
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
| | - Ali Daneshfar
- Department of Chemistry, Faculty of Science, Ilam University, Ilam, Iran
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27
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Wang Y, Gong X, Huang D, Zhang J. Increasing oxytetracycline and enrofloxacin concentrations on the algal growth and sewage purification performance of an algal-bacterial consortia system. CHEMOSPHERE 2022; 286:131917. [PMID: 34426270 DOI: 10.1016/j.chemosphere.2021.131917] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/02/2021] [Accepted: 08/15/2021] [Indexed: 06/13/2023]
Abstract
Oxytetracycline (OTC) and enrofloxacin (EFX) pollution in surface water are very common. Using the algal-bacterial consortia system to remove antibiotics remains to be further studied. In this study, the algal growth and sewage purification performance were studied in an algal-bacterial consortia system with different concentrations of antibiotics. The enzyme activity, malondialdehyde content, chlorophyll-a content, extracellular polysaccharide, and protein content of algae were also tested. It was found that the algal growth was promoted by low-dose antibiotics, 21.83% and 22.11% promotion at 0.1 mg L-1 OTC and EFX, respectively. The nutrients and antibiotics removals of the low-dose groups (OTC <5 mg L-1, EFX <1 mg L-1) were not affected significantly. More than 70% of total organic carbon and total phosphorus, and 97.84-99.76% OTC, 42.68-42.90% EFX were removed in the low-dose groups. However, the algal growth was inhibited, and the nutrients removals performance also declined in the high-concentration groups (10 mg L-1 OTC, 5 mg L-1 EFX). The superoxide dismutase and catalase activity, and malondialdehyde content increased significantly (P < 0.05), indicating the increased activity of reactive oxygen species. In addition, the decreased chlorophyll-a content, thylakoid membrane deformation, starch granules accumulation, and plasmolysis showed that the algal physiological functions were affected. These results showed that the algal-bacterial consortia system was more suitable to treat low-concentration antibiotics and provided basic parameters for the consortia application.
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Affiliation(s)
- Yu Wang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China
| | - Xinye Gong
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China
| | - Deying Huang
- Department of Chemistry, Fudan University, Shanghai, 200433, PR China.
| | - Jibiao Zhang
- Department of Environmental Science and Engineering, Fudan University, Shanghai, 200433, PR China.
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28
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Eluk D, Nagel O, Gagneten A, Reno U, Althaus R. Toxicity of fluoroquinolones on the cladoceran Daphnia magna. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:2914-2930. [PMID: 34431154 DOI: 10.1002/wer.1631] [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: 04/13/2021] [Revised: 07/13/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
This study evaluates the acute and chronic toxicological effects of six fluoroquinolones on the mortality and growth of Daphnia magna. The NOECs calculated with the multivariate Probit regression model for the chronic study were 56 μg/L ciprofloxacin, 63 μg/L enrofloxacin, 78 μg/L levofloxacin, 85 μg/L marbofloxacin, 69 μg/L norfloxacin, and 141 μg/L ofloxacin. The risk quotients were determined using the measure environmental concentrations reported in water sources from different countries. The risks were low and moderate in water samples from rivers and lakes, although concentrations of ciprofloxacin, norfloxacin, and ofloxacin reported in some countries can cause toxicological damage to D. magna. In addition, urban wastewater and hospital wastewater samples constitute a threat to D. magna (high and moderate risks), requiring the treatment of these wastewater. PRACTITIONER POINTS: The NOECs calculated with the multivariate Probit model for the six fluoroquinolonas are between 56 μg/L ciprofloxacin and 141 μg/L ofloxacin. The levels of ciprofloxacin, norfloxacin, and ofloxacin in urban wastewater and hospital wastewater produce moderate and high risks for D. magna. Water and river samples from some countries containing ciprofloxacin, norlfoxacin, and ofloxacin present high risks for D. magna.
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Affiliation(s)
- Dafna Eluk
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Orlando Nagel
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Ana Gagneten
- Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Ulises Reno
- Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Rafael Althaus
- Facultad de Ciencias Veterinarias, Universidad Nacional del Litoral, Santa Fe, Argentina
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29
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Sanz-García F, Hernando-Amado S, Martínez JL. Evolution under low antibiotic concentrations: a risk for the selection of Pseudomonas aeruginosa multidrug-resistant mutants in nature. Environ Microbiol 2021; 24:1279-1293. [PMID: 34666420 DOI: 10.1111/1462-2920.15806] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 10/05/2021] [Indexed: 11/30/2022]
Abstract
Antibiotic pollution of non-clinical environments might have a relevant impact on human health if resistant pathogens are selected. However, this potential risk is often overlooked, since drug concentrations in nature are usually below their minimal inhibitory concentrations (MICs). Albeit, antibiotic resistant bacteria can be selected even at sub-MIC concentrations, in a range known as the sub-MIC selective window. Using short-term evolution experiments, we have determined the sub-MIC selective windows of the opportunistic pathogen Pseudomonas aeruginosa for seven antibiotics of clinical relevance, finding the ones of quinolones to be the widest, and the ones of polymyxin B and imipenem, the narrowest. Clinically relevant multidrug-resistant mutants arose within the sub-MIC selective windows of most antibiotics tested, being some of these phenotypes mediated by efflux pumps' activity. The fact that the concentration of antibiotics reported in aquatic ecosystems - colonizable by P. aeruginosa - are, in occasions, higher than the ones that select multidrug-resistant mutants in our assays, has implications for understanding the role of different ecosystems and conditions in the emergence of antibiotic resistance from a One-Health perspective. Further, it reinforces the importance of procuring accurate information on the sub-MIC selective windows for drugs of clinical value in pathogens with environmental niches.
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30
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Wang Y, Zeng X, Meng Y. Aqueous oxidation degradation of ciprofloxacin involving hydroxyl and sulfate radicals: A computational investigation. COMPUT THEOR CHEM 2021. [DOI: 10.1016/j.comptc.2021.113427] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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31
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Arslan P, Yurdakok-Dikmen B, Ozeren SC, Kuzukiran O, Filazi A. In vitro effects of erythromycin and florfenicol on primary cell lines of Unio crassus and Cyprinus carpio. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:48408-48416. [PMID: 33913106 DOI: 10.1007/s11356-021-14139-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 04/22/2021] [Indexed: 06/12/2023]
Abstract
The ubiquitous use of antibiotics leads exposure of these chemicals on non-target aquatic species, while the toxicity assays for these chemicals are time/labor consuming and expensive. Alternative approaches using primary cell cultures which retain the tissue functionality at its highest form have received global attention compared to cell lines. In the current study, the cytotoxic effects of two commonly used antibiotics from amphenicol (florfenicol) and macrolide (erythromycin) groups were evaluated on primary cell cultures of Unio crassus (mantle, digestive gland, gill, and gonad) and Cyprinus carpio (gill and liver) using MTT and Neutral Red assays. The highest cytotoxic effects were found on the mussel digestive gland and carp liver cells for florfenicol and erythromycin, while the lowest cytotoxic effects were found in mussel mantle cells for both drugs in the MTT test. In the NR test, the highest cytotoxic effects of erythromycin and florfenicol were found in the mussel gill, mantle, gonad, and carp gill cells; the lowest cytotoxic effect of erythromycin was found in the mussel digestive gland, while the lowest effect of florfenicol was found in the carp liver cells. The cytotoxicity of florfenicol was quite low for the carp liver, while the cytotoxicity of erythromycin was quite low in the mussel digestive tract. Thus, it was concluded that cells made from mussel tissues could be used in ecotoxicity tests, and sensitivity may vary according to the tissue.
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Affiliation(s)
- Pınar Arslan
- Biology Department, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey
| | - Begum Yurdakok-Dikmen
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey
| | | | - Ozgur Kuzukiran
- Veterinary Department, Eldivan Vocational School of Health Services, Cankiri Karatekin University, Cankiri, Turkey
| | - Ayhan Filazi
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ankara University, Ankara, Turkey.
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32
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Wan YP, Liu ZH, Liu Y. Veterinary antibiotics in swine and cattle wastewaters of China and the United States: Features and differences. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2021; 93:1516-1529. [PMID: 33586826 DOI: 10.1002/wer.1534] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 01/12/2021] [Accepted: 02/03/2021] [Indexed: 06/12/2023]
Abstract
Veterinary antibiotics (VAs) have been widely used in livestock for disease prevention, treatment, and growth promotion. This study compared top 20 VAs in Chinese and US swine and cattle wastewater with published literatures. The sulfonamides (SAs) were found to be predominant, accounting for 62% of the top 20 VAs in Chinese swine wastewater, while tetracyclines (TCs) contributed to about 68.7% of the 18 VAs in US swine wastewater. The average concentration of the 20 major VAs in Chinese swine wastewater was estimated to be 1145 μg/L against 253.6 μg/L in the United States. On the other hand, the five major VAs in Chinese cattle wastewater were identified to be oxytetracycline, nafcillin, apramycin, lincomycin, and amikacin, while monensin was found to be dominant in US cattle wastewater. The average concentration of the top 20 VAs in Chinese and US cattle wastewaters were found to be 54.6 and 46.2 μg/L, respectively. These analyses suggested that VAs were probably over-used in Chinese swine industry, eventually causing the development and spreading of antibiotic resistant-bacteria and genes, which should be paid with attention. PRACTITIONER POINTS: Major veterinary antibiotics (VAs) in swine and cattle wastewater were identified. Top 20 VAs in swine and cattle wastewater of China and the United States were compared. VAs concentration in Chinese swine wastewater was 4.52 times that in the United States. VAs concentration in Chinese cattle wastewater was 1.18 times that of the United States.
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Affiliation(s)
- Yi-Ping Wan
- School of Environment and Energy, South China University of Technology, Guangzhou, China
| | - Ze-Hua Liu
- School of Environment and Energy, South China University of Technology, Guangzhou, China
- Key Lab Pollution Control & Ecosystem Restoration in Industry Cluster, Ministry of Education, Guangzhou, China
- Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling, Guangzhou, China
- Guangdong Provincial Engineering and Technology Research Center for Environment Risk Prevention and Emergency Disposal, South China University of Technology, Guangzhou, China
| | - Yu Liu
- Advanced Environmental Biotechnology Center, Nanyang Environment and Water Research Institute, Nanyang Technological University, CleanTech One, Singapore, Singapore
- School of Civil and Engineering, Nanyang Technological University, Singapore, Singapore
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33
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Shiroma LS, Bottoli CBG, Jonsson CM, Queiroz SCN. Exposure of tilapia (Oreochromis niloticus) to the antibiotic florfenicol in water: determination of the bioconcentration factor and the withdrawal period. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:39026-39034. [PMID: 33742384 DOI: 10.1007/s11356-021-13327-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 03/03/2021] [Indexed: 06/12/2023]
Abstract
The demand for healthier foods with high nutritional value has resulted in intensive fish farming. In this production system, high-frequency infections occur, and antibiotics are administrated for control. Only two antibiotics are allowed for use in Brazilian aquaculture, one of which is florfenicol. In this work, a bioconcentration assay was performed to assess the accumulation of florfenicol in the muscle of Nile tilapia (Oreochromis niloticus). Tilapia was evaluated as it is the most produced fish species in Brazil. The fish were exposed to florfenicol at a nominal concentration of 10 mg/L, through the water. Muscle and water were collected at 0, 1.5, 3, 6, 24, and 48 h during the exposure phase and at 1.5, 3, 6, 24, 48, and 120 h during the depuration phase. Quantification was performed using an LC-MS/MS. The results showed rapid absorption and elimination of the antibiotic (half-life, t1/2 = 5 h), with low potential for accumulation of florfenicol in tilapia muscles. The study was performed to determine the bioconcentration factor (BCF) and withdrawal period of florfenicol, being 0.05 mL/μg and 1.8 h, respectively. The results contribute to set protocols for the safe use of florfenicol in tilapia transport, avoiding residues in fish that may pose risks to human health.
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Affiliation(s)
- Letícia Sayuri Shiroma
- Institute of Chemistry, University of Campinas, POB 6154, Campinas, SP, 13083-970, Brazil
| | | | - Claudio Martin Jonsson
- Laboratório de Ecotoxicologia e Biossegurança, Embrapa Meio Ambiente, Rodovia SP 340, km 127,5, S/N, Jaguariúna, SP, 13918-110, Brazil
| | - Sonia C N Queiroz
- Laboratório de Resíduos e Contaminantes, Embrapa Meio Ambiente, Rodovia SP 340, km 127,5, S/N, Jaguariúna, SP, 13918-110, Brazil.
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34
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Zhu H, Yang B, Yang J, Yuan Y, Zhang J. Persulfate-enhanced degradation of ciprofloxacin with SiC/g-C 3N 4 photocatalyst under visible light irradiation. CHEMOSPHERE 2021; 276:130217. [PMID: 34088097 DOI: 10.1016/j.chemosphere.2021.130217] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/04/2021] [Accepted: 03/06/2021] [Indexed: 06/12/2023]
Abstract
SiC/g-C3N4 composite (SCN) showed the potential for photocatalytic degradation of synthetic dyes, it is deserved to study whether it is effective for the photocatalytic degradation of ciprofloxacin (CIP). In this work, persulfate-enhanced CIP degradation was investigated with SCN under visible light irradiation. The results showed that the degradation efficiency of 10 mg L-1 CIP could reach 95% for 30 min under the conditions of 0.4 g L-1 SCN, 2 mM persulfate (PS) and solution initial pH 6. The degradation process abided by pseudo first-order kinetic equation, and the observed rate constant (kobs) with SCN/PS (0.132 min-1) was 13 times of that with SCN (0.0102 min-1), and twice of that with g-C3N4/PS (0.0649 min-1). The quenching experiments and electron paramagnetic resonance analysis indicated that O2-· and 1O2 played the main role and other active species (e.g., h+, SO4-· and ·OH) also participated in CIP degradation. The possible degradation pathways were proposed through identifying the intermediate products, and the main reactions may include the ring opening of piperazine, decarbonylation, decarboxylation and defluorination. Bacterial toxicity test showed that the toxicity of the reaction solution decreased dramatically after 30 min degradation. Overall, this work could provide an efficient and environmentally friendly technology for eliminating CIP.
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Affiliation(s)
- Hongqing Zhu
- College of Resources and Environment, Southwest University, Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, PR China; School of Environment and Quality Test, Chongqing Chemical Industry Vocational College, Chongqing, 401228, China
| | - Bing Yang
- School of Environment and Quality Test, Chongqing Chemical Industry Vocational College, Chongqing, 401228, China
| | - Jingjing Yang
- School of Environment and Quality Test, Chongqing Chemical Industry Vocational College, Chongqing, 401228, China.
| | - Ying Yuan
- School of Environment and Quality Test, Chongqing Chemical Industry Vocational College, Chongqing, 401228, China
| | - Jinzhong Zhang
- College of Resources and Environment, Southwest University, Chongqing Key Laboratory of Agricultural Resources and Environment, Chongqing, 400715, PR China.
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35
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Ashiq A, Vithanage M, Sarkar B, Kumar M, Bhatnagar A, Khan E, Xi Y, Ok YS. Carbon-based adsorbents for fluoroquinolone removal from water and wastewater: A critical review. ENVIRONMENTAL RESEARCH 2021; 197:111091. [PMID: 33794177 DOI: 10.1016/j.envres.2021.111091] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 01/23/2021] [Accepted: 03/24/2021] [Indexed: 06/12/2023]
Abstract
This review summarizes the adsorptive removal of Fluoroquinolones (FQ) from water and wastewater. The influence of different physicochemical parameters on the adsorptive removal of FQ-based compounds is detailed. Further, the mechanisms involved in the adsorption of FQ-based antibiotics on various adsorbents are succinctly described. As the first of its kind, this paper emphasizes the performance of each adsorbent for FQ-type antibiotic removal based on partition coefficients of the adsorbents that is a more sensitive parameter than adsorption capacity for comparing the performances of adsorbents under various adsorbate concentrations and heterogeneous environmental conditions. It was found that π-π electron donor-acceptor interactions, electrostatic interactions, and pore-filling were the most prominent mechanisms for FQ adsorption by carbon and clay-based adsorbents. Among all the categories of adsorbents reviewed, graphene showed the highest performance for the removal of FQ antibiotics from water and wastewater. Based on the current state of knowledge, this review fills the gap through methodolically understanding the mechanism for further improvement of FQ antibiotics adsorption performance from water and wastewater.
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Affiliation(s)
- Ahmed Ashiq
- Ecosphere Resilience Research Centre, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka
| | - Meththika Vithanage
- Ecosphere Resilience Research Centre, Faculty of Applied Science, University of Sri Jayewardenepura, Sri Lanka.
| | - Binoy Sarkar
- Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom
| | - Manish Kumar
- Department of Earth Sciences, Indian Institute of Technology Gandhinagar, India
| | - Amit Bhatnagar
- Department of Separation Science, LUT School of Engineering Science, LUT University, Sammonkatu 12, FI-50130, Mikkeli, Finland
| | - Eakalak Khan
- Civil and Environmental Engineering and Construction Department, University of Nevada - Las Vegas, Las Vegas, NV, USA
| | - Yunfei Xi
- Institute for Future Environments & School of Earth and Atmospheric Sciences, Queensland University of Technology (QUT), 2 George Street, Brisbane, Queensland, 4001, Australia
| | - Yong Sik Ok
- Korea Biochar Research Center, APRU Sustainable Waste Management Program & Division of Environmental Science and Ecological Engineering, Korea University, Seoul, South Korea.
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Dror I, Fink L, Weiner L, Berkowitz B. Elucidating the catalytic degradation of enrofloxacin by copper oxide nanoparticles through the identification of the reactive oxygen species. CHEMOSPHERE 2020; 258:127266. [PMID: 32535443 DOI: 10.1016/j.chemosphere.2020.127266] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/22/2020] [Accepted: 05/29/2020] [Indexed: 06/11/2023]
Abstract
Copper oxide nanoparticles (CuO-NPs) have been suggested as effective catalysts to degrade many persistent organic contaminants. In parallel, CuO-NPs are considered toxic to soil microorganisms, plants and human cells, possibly because they induce oxidative stress and generation of reactive oxygen species (ROS). However, the mechanism of the catalytic process and the generated ROS are poorly understood. Here we discuss the reaction mechanism of CuO-NPs during the catalytic degradation of enrofloxacin - an antibiotic pharmaceutical used in this study as a representative persistent organic compound. The degradation of an aqueous solution of the enrofloxacin exposed to CuO-NPs and hydrogen peroxide was studied showing fast removal of the enrofloxacin at ambient conditionsns. ROS production was identified by electron spin resonance and a spin trapping technique. The distribution of the free radical species indicated production of a high percentage of superoxide (O2-.) radicals as well as hydroxyl radicals; this production is similar to the "radical production" activity of the superoxide dismutase (SOD) enzyme in the presence of hydrogen peroxide. This activity was also tested in the opposite direction, to examine if CuO-NPs show reactivity that potentially mimics the classical SOD enzymatic activity. The CuO-NPs were found to catalyze the dismutation of superoxide to hydrogen peroxide and oxygen in a set of laboratory experiments.
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Affiliation(s)
- Ishai Dror
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 7610001, Israel.
| | - Lea Fink
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 7610001, Israel; Currently at the Institute of Chemistry and Center for Nanoscience and Nanotechnology, Edmond J. Safra Campus, Givat Ram, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Lev Weiner
- Department of Chemical Research Support, Weizmann Institute of Science, Rehovot, 7610001, Israel
| | - Brian Berkowitz
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot, 7610001, Israel
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Gomes MP, Moreira Brito JC, Cristina Rocha D, Navarro-Silva MA, Juneau P. Individual and combined effects of amoxicillin, enrofloxacin, and oxytetracycline on Lemna minor physiology. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 203:111025. [PMID: 32888593 DOI: 10.1016/j.ecoenv.2020.111025] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/06/2020] [Accepted: 07/08/2020] [Indexed: 06/11/2023]
Abstract
We investigated individual and combined effects of environmentally representative concentrations of amoxicillin (AMX; 2 μg l-1), enrofloxacin (ENR; 2 μg l-1), and oxytetracycline (OXY; 1 μg l-1) on the aquatic macrophyte Lemna minor. While the concentrations of AMX and ENR tested were not toxic, OXY decreased plant growth and cell division. OXY induced hydrogen peroxide (H2O2) accumulation and related oxidative stress through its interference with the activities of mitochondria electron transport chain enzymes, although those deleterious effects could be ameliorated by the presence of AMX and/or ENR, which prevented the overaccumulation of ROS by increasing catalase enzyme activity. L. minor plants accumulated significant quantities of AMX, ENR and OXY from the media, although competitive uptakes were observed when plants were submitted to binary or tertiary mixtures of those antibiotics. Our results therefore indicate L. minor as a candidate for phytoremediation of service waters contaminated by AMX, ENR, and/or OXY.
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Affiliation(s)
- Marcelo Pedrosa Gomes
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil.
| | - Júlio César Moreira Brito
- Fundação Ezequiel Dias, Rua Conde Pereira Carneiro, 80, 30510-010, Belo Horizonte, Minas Gerais, Brazil
| | - Daiane Cristina Rocha
- Laboratório de Fisiologia de Plantas Sob Estresse, Departamento de Botânica, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil
| | - Mário Antônio Navarro-Silva
- Laboratório de Morfologia e Fisiologia de Culicidae e Chronomidae, Departamento de Zoologia, Setor de Ciências Biológicas, Universidade Federal do Paraná, Avenida Coronel Francisco H. dos Santos, 100, Centro Politécnico Jardim das Américas, C.P. 19031, 81531-980, Curitiba, Paraná, Brazil
| | - Philippe Juneau
- Ecotoxicology of Aquatic Microorganisms Laboratory, GRIL, EcotoQ, TOXEN, Department of Biological Sciences, Université du Québec à Montréal, Montréal, Succ. Centre-Ville, H3C 3P8, Montréal, QC, Canada.
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Ching C, Orubu ESF, Sutradhar I, Wirtz VJ, Boucher HW, Zaman MH. Bacterial antibiotic resistance development and mutagenesis following exposure to subinhibitory concentrations of fluoroquinolones in vitro: a systematic review of the literature. JAC Antimicrob Resist 2020; 2:dlaa068. [PMID: 34223024 PMCID: PMC8210091 DOI: 10.1093/jacamr/dlaa068] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Accepted: 07/15/2020] [Indexed: 12/09/2022] Open
Abstract
BACKGROUND Understanding social and scientific drivers of antibiotic resistance is critical to help preserve antibiotic efficacy. These drivers include exposure to subinhibitory antibiotic concentrations in the environment and clinic. OBJECTIVES To summarize and quantify the relationship between subinhibitory fluoroquinolone exposure and antibiotic resistance and mutagenesis to better understand resistance patterns and mechanisms. METHODS Following PRISMA guidelines, PubMed, Web of Science and Embase were searched for primary in vitro experimental studies on subinhibitory fluoroquinolone exposure and bacterial antibiotic resistance and mutagenesis, from earliest available dates through to 2018 without language limitation. A specifically developed non-weighted tool was used to assess risk of bias. RESULTS Evidence from 62 eligible studies showed that subinhibitory fluoroquinolone exposure results in increased resistance to the selecting fluoroquinolone. Most increases in MIC were low (median minimum of 3.7-fold and median maximum of 32-fold) and may not be considered clinically relevant. Mechanistically, resistance is partly explained by target mutations but also changes in drug efflux. Collaterally, resistance to other fluoroquinolones and unrelated antibiotic classes also develops. The mean ± SD quality score for all studies was 2.6 ± 1.8 with a range of 0 (highest score) to 7 (lowest score). CONCLUSIONS Low and moderate levels of resistance and efflux changes can create an opportunity for higher-level resistance or MDR. Future studies, to elucidate the genetic regulation of specific resistance mechanisms, and increased policies, including surveillance of low-level resistance changes or genomic surveillance of efflux pump genes and regulators, could serve as a predictor of MDR development.
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Affiliation(s)
- Carly Ching
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Ebiowei S F Orubu
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
- Institute for Health System Innovation & Policy, Boston University, Boston, MA, USA
| | - Indorica Sutradhar
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
| | - Veronika J Wirtz
- Department of Global Health, Boston University School of Public Health, Boston, MA, USA
| | - Helen W Boucher
- Division of Geographic Medicine and Infectious Diseases, Tufts Medical Center, Boston, MA, USA
| | - Muhammad H Zaman
- Department of Biomedical Engineering, Boston University, Boston, MA, USA
- Howard Hughes Medical Institute, Boston University, Boston, MA, USA
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Kumar R, Mazumder P, Jawed M. Antibiotic Resistance, Its Health Impacts and Advancements in Their Removal Techniques with a Focus on Biological Treatment. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/978-981-15-4599-3_14] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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40
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Ching C, Zaman MH. Development and selection of low-level multi-drug resistance over an extended range of sub-inhibitory ciprofloxacin concentrations in Escherichia coli. Sci Rep 2020; 10:8754. [PMID: 32471975 PMCID: PMC7260183 DOI: 10.1038/s41598-020-65602-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Accepted: 04/30/2020] [Indexed: 01/13/2023] Open
Abstract
To better combat bacterial antibiotic resistance, a growing global health threat, it is imperative to understand its drivers and underlying biological mechanisms. One potential driver of antibiotic resistance is exposure to sub-inhibitory concentrations of antibiotics. This occurs in both the environment and clinic, from agricultural contamination to incorrect dosing and usage of poor-quality medicines. To better understand this driver, we tested the effect of a broad range of ciprofloxacin concentrations on antibiotic resistance development in Escherichia coli. We observed the emergence of stable, low-level multi-drug resistance that was both time and concentration dependent. Furthermore, we identified a spectrum of single mutations in strains with resistant phenotypes, both previously described and novel. Low-level class-wide resistance, which often goes undetected in the clinic, may allow for bacterial survival and establishment of a reservoir for outbreaks of high-level antibiotic resistant infections.
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Affiliation(s)
- Carly Ching
- Boston University, Department of Biomedical Engineering, Boston, MA, USA
| | - Muhammad H Zaman
- Boston University, Department of Biomedical Engineering, Boston, MA, USA.
- Howard Hughes Medical Institute, Boston University, Boston, MA, USA.
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Teglia CM, Perez FA, Michlig N, Repetti MR, Goicoechea HC, Culzoni MJ. Occurrence, Distribution, and Ecological Risk of Fluoroquinolones in Rivers and Wastewaters. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2019; 38:2305-2313. [PMID: 31291022 DOI: 10.1002/etc.4532] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 03/31/2019] [Accepted: 06/28/2019] [Indexed: 06/09/2023]
Abstract
The use of fluoroquinolones for the treatment of infections in humans and animals has increased in Argentina, and they can be found in large amounts in water bodies. The present study investigated the occurrence and associated ecological risk of 5 fluoroquinolones in rivers and farm wastewaters of San Luis, Santa Fe, Córdoba, Entre Ríos, and Buenos Aires provinces of Argentina by high-performance liquid chromatography coupled to fast-scanning fluorescence detection and ultra-high-performance liquid chromatography coupled to triple quadrupole mass spectrometry detection. The maximum concentrations of ciprofloxacin, enrofloxacin, ofloxacin, enoxacin, and difloxacin found in wastewater were 1.14, 11.9, 1.78, 22.1, and 14.2 μg L-1 , respectively. In the case of river samples, only enrofloxacin was found, at a concentration of 0.97 μg L-1 . The individual risk of aquatic organisms associated with water pollution due to fluoroquinolones was higher in bacteria, cyanobacteria, algae, plants, and anurans than in crustaceae and fish, with, in some cases, risk quotients >1. The proportion of samples classified as high risk was 87.5% for ofloxacin, 63.5% for enrofloxacin, 57.1% for ciprofloxacin, and 25% for enoxacin. Our results suggest that the prevalence of fluoroquinolones in water could be potentially risky for the aquatic ecosystem, and harmful to biodiversity. Environ Toxicol Chem 2019;38:2305-2313. © 2019 SETAC.
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Affiliation(s)
- Carla M Teglia
- Laboratorio de Desarrollo Analítico y Quimiometría, Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - Florencia A Perez
- Laboratorio de Desarrollo Analítico y Quimiometría, Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina
| | - Nicolás Michlig
- Programa de Investigación y Análisis de Residuos y Contaminantes Químicos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - María R Repetti
- Programa de Investigación y Análisis de Residuos y Contaminantes Químicos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Héctor C Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría, Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
| | - María J Culzoni
- Laboratorio de Desarrollo Analítico y Quimiometría, Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, Santa Fe, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas, Buenos Aires, Argentina
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Wang G, Zhang Q, Li J, Chen X, Lang Q, Kuang S. Combined effects of erythromycin and enrofloxacin on antioxidant enzymes and photosynthesis-related gene transcription in Chlorella vulgaris. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 212:138-145. [PMID: 31125791 DOI: 10.1016/j.aquatox.2019.05.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 05/01/2019] [Accepted: 05/09/2019] [Indexed: 05/05/2023]
Abstract
Multiple antibiotics are simultaneously detected in aquatic environment, so it is extremely important to study the combined effects of their mixtures. In this study, we investigated the toxic effects of erythromycin (ERY) and enrofloxacin (ENR), added individually or in combination, on Chlorella vulgaris and explored the toxic mechanisms. Results showed that the 96 h-EC50 values of ERY, ENR and ERY-ENR mixture to C. vulgaris were 85.7, 124.5 and 39.9 μg L-1 respectively, and combined toxicity assessment found that joint effect of the two antibiotics was synergism, which was proven by the chlorophyll content in algae. Antioxidant defense system and photosynthesis were involved in toxic mechanisms and the results revealed that both the activities of antioxidant enzymes, and the malondialdehyde (MDA) and glutathione (GSH) contents increased in antibiotic treatments. In addition, the increase was more significant in joint exposure treatment, which implied that the antioxidant defense system was synergistically affected. RT-PCR showed that ERY and ENR upregulated the transcript abundance of psaB, psbC and chlB at low concentrations and the transcription abundance was synergistically increased in combined treatment. Therefore, the risk of the toxicity of antibiotics to aquatic organisms in real environment both at organismal and molecular level increases as a result of their combined presence.
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Affiliation(s)
- Guixiang Wang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China; College of Biological and Environmental Engineering, Binzhou University, Binzhou, Shandong 256600, China
| | - Qiong Zhang
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, Shandong 256600, China
| | - Jialiang Li
- College of Biological and Environmental Engineering, Binzhou University, Binzhou, Shandong 256600, China
| | - Xiangyan Chen
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Qiaolin Lang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Shaoping Kuang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
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Gavilán RE, Nebot C, Patyra E, Vazquez B, Miranda JM, Cepeda A. Determination of Florfenicol, Thiamfenicol and Chloramfenicol at Trace Levels in Animal Feed by HPLC⁻MS/MS. Antibiotics (Basel) 2019; 8:antibiotics8020059. [PMID: 31067799 PMCID: PMC6628031 DOI: 10.3390/antibiotics8020059] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 04/26/2019] [Accepted: 04/30/2019] [Indexed: 11/21/2022] Open
Abstract
Administration of florfenicol and thiamfenicol through medicated feed is permitted within the European Union, always following veterinary prescription and respecting the withdrawal periods. However, the presence of low levels of florfenicol, thiamfenicol, and chloramfenicol in non-target feed is prohibited. Since cross-contamination can occur during the production of medicated feed and according to Annex II of the European Regulation 2019/4/EC, the control of residue levels of florfenicol and thiamfenicol in non-target feed should be monitored and avoided. Based on all the above, a sensitive and reliable method using liquid chromatography tandem mass spectrometry was developed for the simultaneous detection of chloramfenicol, florfenicol, and thiamfenicol at trace levels in animal feed. Analytes were extracted from minced feed with ethyl acetate. Then, the ethyl acetate was evaporated, the residue was resuspended in Milli-Q water and the extract filtered. The method was in-house validated at carryover levels, with concentration ranging from 100 to 1000 µg/kg. The validation was conducted following the European Commission Decision 2002/657/EC and all performance characteristics were successfully satisfied. The capability of the method to detect amfenicols at lower levels than any prior perspective regulation literature guarantees its applicability in official control activities. The developed method has been applied to non-compliant feed samples with satisfactory results.
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Affiliation(s)
- Rosa Elvira Gavilán
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Carolina Nebot
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Ewelina Patyra
- Department of Hygiene of Animal Feedingstuffs, National Veterinary Research Institute, 24⁻100 Pulawy, Poland.
| | - Beatriz Vazquez
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Jose Manuel Miranda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
| | - Alberto Cepeda
- Department of Analytical Chemistry, Nutrition and Bromatology, Faculty of Veterinary Medicine, University of Santiago de Compostela, 27002 Lugo, Spain.
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Lu T, Zhu Y, Ke M, Peijnenburg WJGM, Zhang M, Wang T, Chen J, Qian H. Evaluation of the taxonomic and functional variation of freshwater plankton communities induced by trace amounts of the antibiotic ciprofloxacin. ENVIRONMENT INTERNATIONAL 2019; 126:268-278. [PMID: 30825745 DOI: 10.1016/j.envint.2019.02.050] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Revised: 02/20/2019] [Accepted: 02/20/2019] [Indexed: 06/09/2023]
Abstract
Ciprofloxacin (CIP), one of the most frequently detected antibiotics in water systems, has become an aquatic contaminant because of improper disposal and excretion by humans and animals. It is still unknown how trace amounts of CIP affect the aquatic microbial community diversity and function. We therefore investigated the effects of CIP on the structure and function of freshwater microbial communities via 16S/18S rRNA gene sequencing and metatranscriptomic analyses. CIP treatment (7 μg/L) did not significantly alter the physical and chemical condition of the water body as well as the composition of the main species in the community, but slightly increased the relative abundance of cyanobacteria and decreased the relative abundance of eukaryotes. Metatranscriptomic results showed that bacteria enhanced their phosphorus transport and photosynthesis after CIP exposure. The replication, transcription, translation and cell proliferation were all suppressed in eukaryotes, while the bacteria were not affected in any of these aspects. This interesting phenomenon was the exact opposite to both the antibacterial property of CIP and its safety for eukaryotes. We hypothesize that reciprocal and antagonistic interactions in the microcosm both contribute to this result: cyanobacteria may enhance their tolerance to CIP through benefiting from cross-feeding and some secreted substances that withstand bacterial CIP stress would also affect eukaryotic growth. The present study thus indicates that a detailed assessment of the aquatic ecotoxicity of CIP is essential, as the effects of CIP are much more complicated in microbial communities than in monocultures. CIP will continue to be an environmental contaminant due to its wide usage and production and more attention should be given to the negative effects of antibiotics as well as other bioactive pollutants on aquatic environments.
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Affiliation(s)
- Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Youchao Zhu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Mingjing Ke
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - W J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, RA, Leiden 2300, the Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, P.O. Box 1, Bilthoven, the Netherlands
| | - Meng Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China
| | - Tingzhang Wang
- Key laboratory of microbial technology and bioinformatics of Zhejiang Province, Hangzhou 310012, China
| | - Jun Chen
- College of Biological and Environmental Engineering, Zhejiang Shuren University, Hangzhou 310021, China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, China.
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Gezahegn T, Tegegne B, Zewge F, Chandravanshi BS. Salting-out assisted liquid-liquid extraction for the determination of ciprofloxacin residues in water samples by high performance liquid chromatography-diode array detector. BMC Chem 2019; 13:28. [PMID: 31384776 PMCID: PMC6661818 DOI: 10.1186/s13065-019-0543-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 02/22/2019] [Indexed: 12/19/2022] Open
Abstract
Background The occurrence of emerging pollutants like pharmaceuticals and related compounds in the aquatic and terrestrial environments is of increasing concern. Ciprofloxacin is one of the pharmaceuticals which is active against a wide range of bacteria. The main objective of this research is to develop a simple method for the extraction and determination of ciprofloxacin residues in environmental water samples. Results A salting-out assisted liquid-liquid extraction (SALLE) method for the determination of ciprofloxacin in water samples by high-performance liquid chromatography with diode array detector (HPLC-DAD) was developed. The calibration curve was linear over the range of 0.1-100 μg/L with coefficient of determination (r2) of 0.9976. The limits of detection (LOD) and quantification (LOQ) of the method were 0.075 and 0.25 µg/L, respectively. The reproducibility in terms of relative standard deviation (% RSD) was less than 10%. The applicability of the developed method was investigated by analyzing tap water, bottled mineral water and waste water and demonstrated satisfactory recoveries in the ranges of 86.4-120%. Conclusion The method offered a number of features including wide linear range, good recovery, short analysis time, simple operation process and environmental friendly. The developed method can be utilized as an attractive alternative for the determination of ciprofloxacin residues in environmental water matrices.
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Affiliation(s)
- Teshome Gezahegn
- 1Department of Chemistry, College of Natural Sciences, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Bisratewongel Tegegne
- 1Department of Chemistry, College of Natural Sciences, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia.,2Departement of Chemistry, College of Natural Sciences, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia
| | - Feleke Zewge
- 1Department of Chemistry, College of Natural Sciences, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
| | - Bhagwan Singh Chandravanshi
- 1Department of Chemistry, College of Natural Sciences, Addis Ababa University, P.O. Box 1176, Addis Ababa, Ethiopia
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Chen T, Zhu Z, Zhang H, Shen X, Qiu Y, Yin D. Enhanced Removal of Veterinary Antibiotic Florfenicol by a Cu-Based Fenton-like Catalyst with Wide pH Adaptability and High Efficiency. ACS OMEGA 2019; 4:1982-1994. [PMID: 31459449 PMCID: PMC6648108 DOI: 10.1021/acsomega.8b03406] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2018] [Accepted: 01/11/2019] [Indexed: 05/10/2023]
Abstract
The study on the removal of refractory veterinary antibiotic florfenicol (FF) in water is still very limited. In this study, an efficient Fenton-like catalyst was developed by synthesizing a series of Cu-based multi-metal layered double hydroxides (CuNiFeLa-LDHs) to degrade FF in aqueous solution. In the experiments, the screened CuNiFeLa-2-LDH with the molar ratio of La3+/(Fe3+ + La3+) = 0.1 exhibited high catalytic activity, achieving almost complete degradation of 5 mg L-1 FF under 5 mmol L-1 H2O2 conditions. The mechanisms revealed that the enhanced catalytic performance was ascribed to the existence of Ni which accelerated the electron transfer rate and La which served as a Lewis acidic site to provide more reactive sites in this Cu-dominated Fenton-like reaction, further generating •OH, •O2 -, and O2 1 as active species to attack pollutants directly. Interestingly, the catalyst showed a wide pH adaptability and little release of copper ions to the solution. The regenerated CuNiFeLa-2-LDH is demonstrated to be a stable and reliable material for florfenicol degradation.
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Affiliation(s)
- Ting Chen
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological
Safety, Shanghai 200092, China
| | - Zhiliang Zhu
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological
Safety, Shanghai 200092, China
- E-mail: . Phone: +86-21-6598 2426. Fax: +86-21-6598 4626
| | - Hua Zhang
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
| | - Xiaolin Shen
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological
Safety, Shanghai 200092, China
| | - Yanling Qiu
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological
Safety, Shanghai 200092, China
| | - Daqiang Yin
- State
Key Laboratory of Pollution Control and Resource Reuseand Key Laboratory
of Yangtze River Water Environment, Ministry of Education, Tongji University, Shanghai 200092, China
- Shanghai
Institute of Pollution Control and Ecological
Safety, Shanghai 200092, China
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Freitas EC, Rocha O, Espíndola ELG. Effects of florfenicol and oxytetracycline on the tropical cladoceran Ceriodaphnia silvestrii: A mixture toxicity approach to predict the potential risks of antimicrobials for zooplankton. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 162:663-672. [PMID: 30056931 DOI: 10.1016/j.ecoenv.2018.06.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 05/30/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Antimicrobials are commonly used in aquaculture to treat infectious diseases in fish. The overuse of these chemicals, however, has made them a contamination source for the aquatic environments. In this study, single and combined effects of florfenicol (FLO) and oxytetracycline (OTC), two antimicrobials widely used in the fish farming, were evaluated in acute and chronic toxicity tests using the tropical cladoceran Ceriodaphnia silvestrii as a model species. Also, a preliminary risk characterization of FLO and OTC for zooplankton was carried out, taking into account different exposure scenarios. The results obtained revealed that FLO and OTC have adverse effects on the mobility, reproduction and population growth rate of C. silvestrii in single exposures. In addition, mixture effects on the C. silvestrii were more severe than predicted effects based on the Concentration Addition model, showing a synergistic deviation for the mobility and a dose-level dependent deviation for the reproduction (synergism at higher levels than EC60). In relation to the risk characterization, risk quotients (RQs) exceeded 1 for chronic toxicity data obtained in both OTC and mixture exposures, indicating that the concentrations of these chemicals in Brazilian freshwater bodies could potentially present risks for the reproduction of zooplankton species in tropical regions. The RQs obtained for the mixtures were higher than those obtained for each chemical separately. Therefore, it is highly recommended that RQs are derived from single and mixture exposure data in order to obtain a more accurate risk characterization.
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Affiliation(s)
- Emanuela Cristina Freitas
- Department of Hydraulic and Sanitation (NEEA/CRHEA/SHS), Engineering School of São Carlos, University of São Paulo, Avenue Trabalhador São-Carlense 400, CEP 13560-970 São Carlos, SP, Brazil.
| | - Odete Rocha
- Department of Ecology and Evolutionary Biology, Federal University of São Carlos, Rodovia Washington Luis km 235, CEP 13565-905 São Carlos, SP, Brazil.
| | - Evaldo Luiz Gaeta Espíndola
- Department of Hydraulic and Sanitation (NEEA/CRHEA/SHS), Engineering School of São Carlos, University of São Paulo, Avenue Trabalhador São-Carlense 400, CEP 13560-970 São Carlos, SP, Brazil.
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Beka L, Fullmer MS, Colston SM, Nelson MC, Talagrand-Reboul E, Walker P, Ford B, Whitaker IS, Lamy B, Gogarten JP, Graf J. Low-Level Antimicrobials in the Medicinal Leech Select for Resistant Pathogens That Spread to Patients. mBio 2018; 9:e01328-18. [PMID: 30042201 PMCID: PMC6058295 DOI: 10.1128/mbio.01328-18] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 06/25/2018] [Indexed: 02/07/2023] Open
Abstract
Fluoroquinolones (FQs) and ciprofloxacin (Cp) are important antimicrobials that pollute the environment in trace amounts. Although Cp has been recommended as prophylaxis for patients undergoing leech therapy to prevent infections by the leech gut symbiont Aeromonas, a puzzling rise in Cp-resistant (Cpr) Aeromonas infections has been reported. We report on the effects of subtherapeutic FQ concentrations on bacteria in an environmental reservoir, the medicinal leech, and describe the presence of multiple antibiotic resistance mutations and a gain-of-function resistance gene. We link the rise of CprAeromonas isolates to exposure of the leech microbiota to very low levels of Cp (0.01 to 0.04 µg/ml), <1/100 of the clinical resistance breakpoint for Aeromonas Using competition experiments and comparative genomics of 37 strains, we determined the mechanisms of resistance in clinical and leech-derived Aeromonas isolates, traced their origin, and determined that the presence of merely 0.01 µg/ml Cp provides a strong competitive advantage for Cpr strains. Deep-sequencing the Cpr-conferring region of gyrA enabled tracing of the mutation-harboring Aeromonas population in archived gut samples, and an increase in the frequency of the Cpr-conferring mutation in 2011 coincides with the initial reports of CprAeromonas infections in patients receiving leech therapy.IMPORTANCE The role of subtherapeutic antimicrobial contamination in selecting for resistant strains has received increasing attention and is an important clinical matter. This study describes the relationship of resistant bacteria from the medicinal leech, Hirudo verbana, with patient infections following leech therapy. While our results highlight the need for alternative antibiotic therapies, the rise of Cpr bacteria demonstrates the importance of restricting the exposure of animals to antibiotics approved for veterinary use. The shift to a more resistant community and the dispersion of Cpr-conferring mechanisms via mobile elements occurred in a natural setting due to the presence of very low levels of fluoroquinolones, revealing the challenges of controlling the spread of antibiotic-resistant bacteria and highlighting the importance of a holistic approach in the management of antibiotic use.
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Affiliation(s)
- Lidia Beka
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Matthew S Fullmer
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Sophie M Colston
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Michael C Nelson
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
| | - Emilie Talagrand-Reboul
- Équipe Pathogènes Hydriques Santé Environnements, UMR 5569 HSM, Université de Montpellier, Montpellier, France
- Département d'Hygiène Hospitalière, CHRU de Montpellier, Montpellier, France
| | - Paul Walker
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Bradley Ford
- Department of Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa, USA
| | - Iain S Whitaker
- Institute of Life Sciences, Swansea University College of Medicine, Swansea, Wales, United Kingdom
| | - Brigitte Lamy
- Équipe Pathogènes Hydriques Santé Environnements, UMR 5569 HSM, Université de Montpellier, Montpellier, France
- Laboratoire de Bactériologie, CHRU de Montpellier, Montpellier, France
- INSERM U1065, C3M, Team 6, Nice, France
| | - Johann Peter Gogarten
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
- Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
| | - Joerg Graf
- Department of Molecular and Cell Biology, University of Connecticut, Storrs, Connecticut, USA
- Institute for Systems Genomics, University of Connecticut, Storrs, Connecticut, USA
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49
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Zhao H, Lang Y. Adsorption behaviors and mechanisms of florfenicol by magnetic functionalized biochar and reed biochar. J Taiwan Inst Chem Eng 2018. [DOI: 10.1016/j.jtice.2018.03.049] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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50
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Deng J, Ya C, Ge Y, Cheng Y, Chen Y, Xu M, Wang H. Activation of peroxymonosulfate by metal (Fe, Mn, Cu and Ni) doping ordered mesoporous Co 3O 4 for the degradation of enrofloxacin. RSC Adv 2018; 8:2338-2349. [PMID: 35541444 PMCID: PMC9077391 DOI: 10.1039/c7ra07841b] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2017] [Accepted: 01/02/2018] [Indexed: 11/21/2022] Open
Abstract
Various transition metals (Fe, Mn, Cu and Ni) were doped into ordered mesoporous Co3O4 to synthesize Co3O4-composite spinels. Their formation was evidenced by transmission electronic microscopy (TEM), X-ray diffraction (XRD) and Brunauer-Emmett-Teller (BET) analysis. It was found that Co3O4-composite spinels could efficiently activate peroxymonosulfate (PMS) to remove enrofloxacin (ENR) and the catalytic activity followed the order Co3O4-CuCo2O4 > Co3O4-CoMn2O4 > Co3O4-CoFe2O4 > Co3O4-NiCo2O4. Moreover, through the calculation of the specific apparent rate constant (k sapp), it can be proved that the Co and Cu ions had the best synergistic effect for PMS activation. The Co3O4-composite spinels presented a wide pH range for the activation of PMS, but strong acidic and alkaline conditions were detrimental to ENR removal. Higher reaction temperature could promote the PMS activation process. Sulfate radical was identified as the dominating reactive species in Co3O4-composite spinel/PMS systems through radical quenching experiments. Meanwhile, the probable mechanisms concerning Co3O4-composite spinel activated PMS were proposed.
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Affiliation(s)
- Jing Deng
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Chen Ya
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Yongjian Ge
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Yongqing Cheng
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Yijing Chen
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Mengyuan Xu
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
| | - Hongyu Wang
- College of Civil Engineering and Architecture, Zhejiang University of Technology 18 Chaowang Road, Xiacheng District Hangzhou 310014 China +86 571 88320180 +86 571 88320180
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