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Cheng X, Hou Y, Lin X, Wang C, Shen B, Zhuo S, Li Z, Peng L, Su Z. UV aging may enhance adsorption capacity of Poly (butylene adipate-co-terephthalate) (PBAT) to heavy metals and toxicity to zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 272:106938. [PMID: 38788459 DOI: 10.1016/j.aquatox.2024.106938] [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: 12/21/2023] [Revised: 04/25/2024] [Accepted: 05/03/2024] [Indexed: 05/26/2024]
Abstract
Compared with the fossil-based plastics, biodegradable plastics are more easily decomposed into small-sized particles (e.g., microplastics). However, the role of aged biodegradable plastics in being vector of co-existed pollutants and potential toxicological effects remain to be elucidated. The present study selected micro-sized biodegradable polymer Poly (butylene adipate-co-terephthalate) (PBAT) as the object, aiming to explore its aging process, environmental behavior with heavy metals (Cu and Pb), and the toxic effects on zebrafish. The results showed that distinct changes such as cracks and severe deformation can be observed on the surface of PBAT after 60 days of UV aging, and the functional groups changed consequently. The maximum adsorption capacity of aged PBAT for Cu and Pb reached 0.967 and 0.939 mg·g-1, which increased by 1.32 and 1.46 times, respectively. The results of 7-day acute toxicology experiments suggested that the adsorption behavior of aged PBAT may alleviate the toxic effects of heavy metals Cu and Pb on zebrafish in short-term exposure, however it could simultaneously cause a serious imbalance of intestinal microorganisms in zebrafish. As demonstrated, the coexistence of aged PBAT and heavy metals (Cu, Pb) can seriously reduce the intestinal microbial diversity and richness of zebrafish, which may induce more serious toxicity and disease in long-term exposure to pollutants. This study could provide fundamental data for better understanding on the adsorption behavior and ecological risk of aged biodegradable plastics with coexisted pollutants.
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Affiliation(s)
- Xing Cheng
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province./Center for Eco-Environment Restoration Engineering of Hainan Province/School of Environmental Science and Engineering, Hainan University, Haikou, Hainan 570228, PR China
| | - Yipeng Hou
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province./Center for Eco-Environment Restoration Engineering of Hainan Province/School of Environmental Science and Engineering, Hainan University, Haikou, Hainan 570228, PR China
| | - Xubing Lin
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province./Center for Eco-Environment Restoration Engineering of Hainan Province/School of Environmental Science and Engineering, Hainan University, Haikou, Hainan 570228, PR China
| | - Chudan Wang
- Hainan Provincial Key Laboratory of Marine Geological Resources and Environment, Haikou 570203, China
| | - Baozhen Shen
- Hainan Provincial Key Laboratory of Marine Geological Resources and Environment, Haikou 570203, China
| | - Shengchi Zhuo
- Eternal Materials Co., Ltd. Suzhou, Jiangsu 215000, PR China
| | - Zhen Li
- College of Agriculture, Yangtze University, Jingzhou, Hubei, China
| | - Licheng Peng
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province./Center for Eco-Environment Restoration Engineering of Hainan Province/School of Environmental Science and Engineering, Hainan University, Haikou, Hainan 570228, PR China.
| | - Zengjian Su
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province./Center for Eco-Environment Restoration Engineering of Hainan Province/School of Environmental Science and Engineering, Hainan University, Haikou, Hainan 570228, PR China.
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Makota O, Yankovych HB, Bondarchuk O, Saldan I, Melnyk I. Sphere-shaped ZnO photocatalyst synthesis for enhanced degradation of the Quinolone antibiotic, Ofloxacin, under UV irradiation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024:10.1007/s11356-024-33619-w. [PMID: 38772993 DOI: 10.1007/s11356-024-33619-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 05/05/2024] [Indexed: 05/23/2024]
Abstract
The sphere-shaped zinc oxide (ZnO) photocatalyst was synthesized by the homogeneous precipitation method, using Zn(CH3COO)2·2H2O as a zinc precursor and NH4OH as a precipitating agent. The morphology and crystal structure of the prepared ZnO sample were studied by XRD, SEM, FT-IR, XPS, zeta potential measurements, and a low-temperature nitrogen adsorption-desorption technique. The optical characteristics of ZnO were determined by UV - Vis diffuse reflectance spectroscopy. ZnO photocatalyst performance of up to 100% within 210 min was observed in the photodegradation of the ofloxacin antibiotic under ultraviolet (UV) irradiation. The effect of antibiotic concentration, heavy metal ions, and water sources on the photocatalytic activity of ZnO demonstrated both the potential of its application under different conditions, and a good adaptability of this photocatalyst. The photodegradation reaction correlated well with the first-order kinetics model, with a rate constant of 0.0173 min-1. The reusability of the photocatalyst was verified after three cycles of use. Admittedly, photogenerated electrons and holes played a key role in removal of the antibiotic. This work showed the suitability of prepared ZnO for antibiotic removal, and its potential use for environmental protection.
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Affiliation(s)
- Oksana Makota
- Department of Physical and Physico-Chemical Methods of Mineral Processing, Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 04001, Košice, Slovak Republic.
- Institute of Chemistry and Chemical Technologies, Lviv Polytechnic National University, Stepana Bandery 12, 79013, Lviv, Ukraine.
| | - Halyna Bodnar Yankovych
- Department of Physical and Physico-Chemical Methods of Mineral Processing, Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 04001, Košice, Slovak Republic
| | - Oleksandr Bondarchuk
- INL - International Iberian Nanotechnology Laboratory, Avenida Mestre José Veiga S/N, 4715-330, Braga, Portugal
| | - Ivan Saldan
- CEITEC - Central European Institute of Technology, Brno University of Technology, Purkyňova 123, 61200, Brno, Czech Republic
| | - Inna Melnyk
- Department of Physical and Physico-Chemical Methods of Mineral Processing, Institute of Geotechnics of the Slovak Academy of Sciences, Watsonova 45, 04001, Košice, Slovak Republic
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Zhang H, Zhou J, Wang K, Li Y, Niu L. Interaction patterns and keystone taxa of bacterial and eukaryotic communities during sulfamethoxazole mineralization in lake sediment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171597. [PMID: 38461980 DOI: 10.1016/j.scitotenv.2024.171597] [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: 12/25/2023] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/12/2024]
Abstract
Sulfamethoxazole (SMX) is a common antibiotic pollutant in aquatic environments, which is highly persistent under various conditions and significantly contributes to the spread of antibiotic resistance. Biodegradation is the major pathway to eliminate antibiotics in the natural environment. The roles of bacteria and eukaryotes in the biodegradation of antibiotics have received considerable attention; however, their successions and co-occurrence patterns during the biodegradation of antibiotics remain unexplored. In this study, 13C-labled SMX was amended to sediment samples from Zhushan Bay (ZS), West Shore (WS), and Gonghu Bay (GH) in Taihu Lake to explore the interplay of bacterial and eukaryotic communities during a 30-day incubation period. The cumulative SMX mineralization on day 30 ranged from 5.2 % to 19.3 %, which was the highest in WS and the lowest in GH. The bacterial community showed larger within-group interactions than between-group interactions, and the positive interactions decreased during incubation. However, the eukaryotic community displayed larger between-group interactions than within-group interactions, and the positive interactions increased during incubation. The proportion of negative interactions between bacteria and eukaryotes increased during incubation. Fifty genera (including 46 bacterial and 4 eukaryotic genera) were identified as the keystone taxa due to their dominance in the co-occurrence network and tolerance to SMX. The cumulative relative abundance of these keystone taxa significantly increased during incubation and was consistent with the SMX mineralization rate. These taxa closely cooperated and played vital roles in co-occurrence networks and microbial community interactions, signifying their crucial role in SMX mineralization. These findings broadened our understanding of the complex interactions of microorganisms under SMX exposure and their potential functions during SMX mineralization, providing valuable insights for in situ bioremediation.
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Affiliation(s)
- Huanjun Zhang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Jingya Zhou
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Kerong Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China.
| | - Lihua Niu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Nanjing 210098, PR China
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Yu X, Ryadun AA, Pavlov DI, Guselnikova TY, Potapov AS, Fedin VP. Ln-MOF-Based Hydrogel Films with Tunable Luminescence and Afterglow Behavior for Visual Detection of Ofloxacin and Anti-Counterfeiting Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2311939. [PMID: 38275004 DOI: 10.1002/adma.202311939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 01/23/2024] [Indexed: 01/27/2024]
Abstract
Highly selective and sensitive quantitative detection of ofloxacin (OFX) at ultralow concentrations in aqueous media and development of new afterglow materials remains a challenge. Herein, a new 2D water-stable lanthanide metal-organic framework (NIIC-2-Tb) is proposed, which exhibits high selectivity towards OFX through the luminescence quenching with the lowest detection limit (1.1 × 10-9 M) reported to date and a fast response within 6 s. In addition, the luminescent detection of OFX by NIIC-2-Tb is not affected by typical components of blood plasma and urine. The excellent sensing effect of NIIC-2-Tb is further utilized to prepare a composite functional sensing carrageenan hydrogel material for the rapid detection of OFX in meat in real time and the first discovery of impressive afterglow in MOF-based hydrogels. This study not only presents novel Ln-MOF materials and Ln-MOF-based hydrogel films for luminescent sensing of OFX, but also demonstrates color-tunable luminescent films with afterglow, which expands the application of composite luminescent materials for detection and anti-counterfeiting.
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Affiliation(s)
- Xiaolin Yu
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, 630090, Russia
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Alexey A Ryadun
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Dmitry I Pavlov
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, 630090, Russia
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Tatiana Y Guselnikova
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Andrei S Potapov
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, 630090, Russia
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
| | - Vladimir P Fedin
- Department of Natural Sciences, Novosibirsk State University, 2 Pirogov Str., Novosibirsk, 630090, Russia
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Sciences, 3 Lavrentiev Ave., Novosibirsk, 630090, Russia
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Li Z, Zhang J, Dong D, Zhang L, Sun H, Wang Y, Sun Z, He S, Guo Z. Photodegradation for different dissociated species of norfloxacin and ofloxacin in water ice under solar irradiation. JOURNAL OF HAZARDOUS MATERIALS 2024; 461:132595. [PMID: 37741203 DOI: 10.1016/j.jhazmat.2023.132595] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/26/2023] [Accepted: 09/19/2023] [Indexed: 09/25/2023]
Abstract
Ice is an important medium that regulates the transformation of organic contaminants. Nonetheless, photodegradation of emerging fluoroquinolone (FQ) antibiotics in the ice, particularly those with varying dissociated species, remains inadequately explored. In this study, the photodegradation of norfloxacin (NOR) and ofloxacin (OFL) in different dissociated species in water ice were investigated. Results indicated that the quantum yield of the zwitterion for NOR in the ice was 1.7-5.0 times higher than that of the cation, and 1.3 times higher than that of the anion. The quantum yield of the zwitterion for OFL in the ice was 2.5-3.4 times higher than that of the cation, and 1.4 times higher than that of the anion. The degradation pathways of NOR and OFL with different dissociated species depended on their molecular structure. Most products possessed lower developmental toxicity than parent NOR and OFL, respectively. OFL showed a higher inhibitory rate of Escherichia coli activity at the initial time of photodegradation, which was higher than that of NOR. This study offers novel insights into the impact of dissociated species on the photodegradation of FQs in ice and contributes to understanding the environmental behavior of fluorinated pharmaceuticals in the cryosphere.
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Affiliation(s)
- Zhuojuan Li
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China; School of Applied Chemistry and Materials, Zhuhai College of Science and Technology, Zhuhai 519040, China
| | - Jing Zhang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Deming Dong
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Liwen Zhang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Heyang Sun
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Yakun Wang
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Zujian Sun
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China
| | - Sinan He
- Key Laboratory of Urban Environment and Health, and Health Key Laboratory of Urban Metabolism of Xiamen, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Zhiyong Guo
- Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin Provincial Key Laboratory of Water Resources and Environment, College of New Energy and Environment, Jilin University, Changchun 130012, China.
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Fernandez-Velayos S, Vergara G, Olmos JM, Sanchez-Marcos J, Menendez N, Herrasti P, Mazarío E. 3D printed monoliths: From powder to an efficient catalyst for antibiotic degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 906:167376. [PMID: 37758129 DOI: 10.1016/j.scitotenv.2023.167376] [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: 08/22/2023] [Revised: 09/20/2023] [Accepted: 09/24/2023] [Indexed: 10/01/2023]
Abstract
To improve the effectiveness and durability of wastewater treatment technologies, researchers are showing a growing interest in 3D printing technology. This technology has attracted significant interest owing to its ability to fabricate challenging complex geometries using different material compositions. This manuscript is focused on the development of 3D monoliths from noncommercial filaments, i.e., a powder blend of iron oxide and polylactic acid (PLA) at 15 wt% of the former. Different monolith designs have been prepared to improve the fluid dynamics of the process, so a simple cylinder (15-Fe3O4@PLA) and a cylinder with double the length and an internal mesh (15-Fe3O4@PLA-DM) were used. These monoliths were characterized by Scanning electron microscopy (SEM), Differential scanning calorimetry (DSC) and Mössbauer spectroscopy, then used for water-based ofloxacin degradation in a continuous down-up flow configuration. Additionally, computational fluid dynamics simulations were performed to estimate the degradation rate constants and analyze the distribution of fluid velocity and pollutant concentration along the 15-Fe3O4@PLA-reactor. The oxidant dose was also optimized to develop the highest degradation rate. The degradation of the target pollutant for those monoliths was 55 and 82 % under optimized conditions. In addition, the 15-Fe3O4@PLA-DM monolith was operated for long term experiments, keeping the degradation performance at a good 67 % for up to 120 h. Finally a fixed-bed reactor was mounted with printed pellets of the mixture (15:85), Fe3O4:PLA, after being ground in a range of 125-200 μm. Under this setup configuration, we observed the total degradation of ofloxacin. 3D printing technology is cheap, reproducible and time saving in the development of supported catalysts in comparison with conventional deposition techniques. Moreover, the leaching of active sites on streams was largely diminished. In fact under continuous operation the leached Fe concentration is below 0.1 ppm, corroborating the good adhesion of the catalyst in the PLA support.
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Affiliation(s)
- S Fernandez-Velayos
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - G Vergara
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - J M Olmos
- Departamento de Química Analítica, Facultad de Química, Universidad de Murcia, 30100 Murcia, Spain
| | - J Sanchez-Marcos
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - N Menendez
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - P Herrasti
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain
| | - E Mazarío
- Departamento de Química Física Aplicada, Facultad de Ciencias, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Zhang Y, Wang M, Cheng W, Huang C, Ren J, Wan T, Gao K. Effects of water environmental factors and antibiotics on bacterial community in urban landscape lakes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106740. [PMID: 37925787 DOI: 10.1016/j.aquatox.2023.106740] [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: 07/16/2023] [Revised: 09/11/2023] [Accepted: 10/28/2023] [Indexed: 11/07/2023]
Abstract
The presence of antibiotics can affect the natural microbial community and exert selective pressure on the environment's microorganisms. This study focused on three types of urban landscape lakes in Xi'an that were closely related to human activities. By combining basic water quality indicators, antibiotic occurrence status, bacterial communities and their potential metabolic functions, Spearman correlation coefficient and redundancy analysis were used to explore the relationship between them, and further explore the impact mechanism of environmental factors and antibiotics on bacterial community structure. The results showed that ofloxacin, erythromycin, and roxithromycin were the main types of antibiotics in the three landscape lakes, with low ecological risks, and there was a clear clustering of antibiotic occurrence. Proteobacteria was the most abundant bacterial phylum, and each lake had its own unique dominant bacteria, which indicates that they are influenced by varying water sources, pollution, and other nearby environments. Statistical analysis showed that pH and nitrogen nutrients were the most critical environmental factors affecting bacterial communities (P<0.01), while tetracyclines and lincomycins were the antibiotics that had a significant impact on bacterial communities (P<0.05). Antibiotics mainly promote defense- and signal transduction-related functions, and inhibit the metabolic activity of bacterial communities. However, the impact of antibiotics on bacterial diversity, community structure, and potential metabolic function in the three urban lakes was less than that of environmental factors. These results help to clarify the mechanism and degree of impact of different interference factors (environmental factors, conventional pollutants, and antibiotics) on bacterial communities in the water environment and are important for the management of urban landscape lake water environments.
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Affiliation(s)
- Yutong Zhang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Min Wang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Wen Cheng
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China.
| | - Chen Huang
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Jiehui Ren
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Tian Wan
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
| | - Kangyi Gao
- State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an, China; Institute of Water Resources and Hydro-Electric Engineering, Xi'an University of Technology, Xi'an, China
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Pino-Otín MR, Lorca G, Langa E, Roig F, Terrado EM, Ballestero D. Assessing the Ecotoxicity of Eight Widely Used Antibiotics on River Microbial Communities. Int J Mol Sci 2023; 24:16960. [PMID: 38069283 PMCID: PMC10707202 DOI: 10.3390/ijms242316960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 11/20/2023] [Accepted: 11/24/2023] [Indexed: 12/18/2023] Open
Abstract
Global prevalence of antibiotic residues (ABX) in rivers requires ecotoxicological impact assessment. River microbial communities serve as effective bioindicators for this purpose. We quantified the effects of eight commonly used ABXs on a freshwater river microbial community using Biolog EcoPlates™, enabling the assessment of growth and physiological profile changes. Microbial community characterization involved 16S rRNA gene sequencing. The river community structure was representative of aquatic ecosystems, with the prevalence of Cyanobacteria, Proteobacteria, Actinobacteria, and Bacteroidetes. Our findings reveal that all ABXs at 100 µg/mL reduced microbial community growth and metabolic capacity, particularly for polymers, carbohydrates, carboxylic, and ketonic acids. Chloramphenicol, erythromycin, and gentamicin exhibited the highest toxicity, with chloramphenicol notably impairing the metabolism of all studied metabolite groups. At lower concentrations (1 µg/mL), some ABXs slightly enhanced growth and the capacity to metabolize substrates, such as carbohydrates, carboxylic, and ketonic acids, and amines, except for amoxicillin, which decreased the metabolic capacity across all metabolites. We explored potential correlations between physicochemical parameters and drug mechanisms to understand drug bioavailability. Acute toxicity effects at the river-detected low concentrations (ng/L) are unlikely. However, they may disrupt microbial communities in aquatic ecosystems. The utilization of a wide array of genetically characterized microbial communities, as opposed to a single species, enables a better understanding of the impact of ABXs on complex river ecosystems.
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Affiliation(s)
- María Rosa Pino-Otín
- Faculty of Health Sciences, San Jorge University, 50830 Zaragoza, Spain; (G.L.); (E.L.); (F.R.); (E.M.T.); (D.B.)
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Zhou H, Xu X, Wangjin Y, Ye M, Wu T, Wang Z, Cui J. Degradation of sulfamethoxazole and antibiotic resistance genes from surface water in the photocatalyst-loading bionic ecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 895:165045. [PMID: 37355126 DOI: 10.1016/j.scitotenv.2023.165045] [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: 04/03/2023] [Revised: 05/23/2023] [Accepted: 06/19/2023] [Indexed: 06/26/2023]
Abstract
The behavior and removal of sulfamethoxazole (SMX) and 3 typical corresponding antibiotic resistance genes (ARGs) including sul1, sul2, sul3, and 16S rDNA in surface water were investigated in the photocatalyst-loading bionic ecosystems (PCBEs). Synthesized composite photocatalyst g-C3N4/TiO2 showing higher catalytic activity than Fe/g-C3N4/TiO2 was selected in the PCBEs. Five PCBEs, i.e., A-the control (without bionic grass or photocatalyst), B-bionic grass loaded with 4.12 g/m2 g-C3N4/TiO2, C-bionic grass loaded with 8.25 g/m2 g-C3N4/TiO2, D-bionic grass loaded with 12.37 g/m2 g-C3N4/TiO2, and E-bionic grass loaded with 16.5 g/m2 g-C3N4/TiO2 were constructed and operated in a medium-scale running cyclical flume. SMX could be photolyzed efficiently by g-C3N4/TiO2 with an optimal unit load on the bionic grass of 12.37 g/m2. 3-amino-5-methylisooxazole and p-aminobenzene sulfonamide were selected as main intermediates through the analyses of SMX degradation mechanisms and pathways, and detected in the aqueous phase and bionic grass. The intermediates were higher in the underwater part of the bionic grass than the above-water part. The overall removal of SMX ranged from 31.7 % to 82.3 % in 5 PCBEs, and the removal of sul1and sul2 were 0.2 %- 62.9 % in the aqueous phase and 8.4 %-63.2 % in the sediment. PCBE D might be the best construction when SMX and ARGs' removal was considered comprehensively. Moreover, the microbial structures showed Proteobacteria as the most dominant bacterial species had a relative abundance of 22.2 %-26.6 % and 33.4 %-68.2 % in the aquatic phase and sediment respectively, illustrating that the removal of the antibiotic and ARGs was bound up with the variations of dominant bacteria in the ecosystems. The findings illustrated that ecosystems with bionic grass and photocatalysts could be a promising technology for the removal of typical antibiotics and ARGs from surface water.
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Affiliation(s)
- Haidong Zhou
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Xinxuan Xu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Yadan Wangjin
- School of Communication and Information Engineering, Shanghai Technical Institute of Electronics Information, Shanghai, China
| | - Mixuan Ye
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Tianyu Wu
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Zuxin Wang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
| | - Jinyu Cui
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
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Liu M, Yu X, Yang M, Shu W, Cao F, Liu Q, Wang J, Jiang Y. The co-presence of polystyrene nanoplastics and ofloxacin demonstrates combined effects on the structure, assembly, and metabolic activities of marine microbial community. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132315. [PMID: 37604038 DOI: 10.1016/j.jhazmat.2023.132315] [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: 05/29/2023] [Revised: 07/27/2023] [Accepted: 08/14/2023] [Indexed: 08/23/2023]
Abstract
Nanoplastic is increasing in environments and can address toxic effects on various organisms. Particle size, concentration, and surface functionalization most influence nanoplastic toxicity. Besides, nanoplastic can adsorb other contaminants (e.g., antibiotics) to aggravate its adverse effects. The combined effects of nanoplastics and antibiotics on planktonic/benthic microbial communities, however, are still largely unknown. In this study, the combined effects of polystyrene nanoplastic and ofloxacin on the structure, assembly, and metabolic activities of marine microbial communities were investigated based on amplicon sequencing data. The results mainly demonstrate that: (1) nanoplastic and ofloxacin have greater impacts on prokaryotic communities than eukaryotic ones; (2) niche breadths of planktonic prokaryotes and benthic eukaryotes were shrank with both high nanoplastic and ofloxacin concentrations; (3) increased ofloxacin mainly reduces nodes/edges of co-occurrence networks, while nanoplastic centralizes network modularity; (4) increased nanoplastic under high ofloxacin concentration induces more differential prokaryotic pathways in planktonic communities, while benthic communities are less influenced. The present work indicates that co-presence of nanoplastics and ofloxacin has synergistic combined effects on community structure shifts, niche breadth shrinking, network simplifying, and differential prokaryotic pathways inducing in marine microbial communities, suggesting nanoplastics and its combined impacts with other pollutions should be paid with more concerns.
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Affiliation(s)
- Mingjian Liu
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Xiaowen Yu
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Mengyao Yang
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Wangxinze Shu
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Furong Cao
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China
| | - Qian Liu
- MoE Laboratory of Marine Chemistry Theory and Technology, Frontiers Science Center for Deep Ocean Multispheres and Earth System, Ocean University of China, Qingdao 266101, China.
| | - Jun Wang
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
| | - Yong Jiang
- MoE Laboratory of Evolution and Marine Biodiversity, Institute of Evolution and Marine Biodiversity & College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China.
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11
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Zhang L, Bai J, Zhai Y, Zhang K, Wang Y, Xiao R, Jorquera MA. Effects of antibiotics on the endophyte and phyllosphere bacterial communities of lotus from above and below surface water in a typical shallow lake. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2023; 201:107812. [PMID: 37343440 DOI: 10.1016/j.plaphy.2023.107812] [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: 02/28/2023] [Revised: 05/21/2023] [Accepted: 05/31/2023] [Indexed: 06/23/2023]
Abstract
Antibiotics are ubiquitous pollutants that are widely found in aquatic ecosystems, where the bacterial community of aquatic plants is influenced by antibiotics. However, differences between endophyte and phyllosphere bacteria of Lotus from above and below surface water remains unclear. Lotus samples from above and below the surface water were collected to investigate the differences in endophyte and phyllosphere bacteria and dominant environmental factors in regions with low (L-) and high (H-) total antibiotic levels. There were significant differences in Shannon diversity between endophyte and phyllosphere bacteria except between the below-surface water phyllosphere bacteria and below-surface water endophytes in both L-antibiotic and H-antibiotic regions, with higher values for phyllosphere bacteria. The dominant phylum in all phyllosphere samples was Proteobacteria (76.1%-92.5%), while Cyanobacteria (47.8%-81.1%) was dominant in all endophyte samples. The dominant source of above-surface water endophytes was below-surface water endophytes (83.68-91.25%), below-surface water phyllosphere bacteria (48.43-55.91%) for above-surface water phyllosphere bacteria, and above-surface water endophytes (53.83-61.80%) for below-surface water endophytes, while the dominant contributor to the below-surface water phyllosphere bacteria was also below-surface water endophytes (52.96-61.00%) in two regions, indicating that antibiotic stress changed the sink‒source relationship between endophytes and phyllosphere bacteria. The physical-chemical properties of surface water and sediments could be responsible for the variations in the above- and below-surface water endophytes and phyllosphere bacteria in both regions. It is suggested that antibiotics may have a substantial effect on endophyte and phyllosphere bacterial community.
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Affiliation(s)
- Ling Zhang
- School of Environment, Beijing Normal University, Beijing, 100875, China; School of Chemistry and Chemical Engineering, Qinghai Normal University, Xining, 810008, China
| | - Junhong Bai
- School of Environment, Beijing Normal University, Beijing, 100875, China; Shandong Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, 256600, China.
| | - Yujia Zhai
- School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Kegang Zhang
- Department of Environmental Engineering and Science, North China Electric Power University, Baoding, China
| | - Yaqi Wang
- School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Rong Xiao
- College of Environment & Safety Engineering, FuZhou University, Fuzhou, China
| | - Milko A Jorquera
- Laboratorio de Ecología Microbiana Aplicada (EMALAB), Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
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12
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Mu X, Huang Z, Ohore OE, Yang J, Peng K, Li S, Li X. Impact of antibiotics on microbial community in aquatic environment and biodegradation mechanism: a review and bibliometric analysis. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:66431-66444. [PMID: 37101213 DOI: 10.1007/s11356-023-27018-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 04/10/2023] [Indexed: 05/25/2023]
Abstract
Antibiotic residues in aquatic environments pose a potential hazard, and microbes, which play important roles in aquatic ecosystems, are vulnerable to the impacts of antibiotics. This study aimed to analyze the research progress, trends, and hot topics of the impact of antibiotics on microbial community and biodegradation mechanism using bibliometric analysis. An in-depth analysis of the publication characteristics of 6143 articles published between 1990 and 2021 revealed that the number of articles published increased exponentially. The research sites have been mainly concentrated in the Yamuna River, Pearl River, Lake Taihu, Lake Michigan, Danjiangkou Reservoir, etc., illustrating that research around the world is not even. Antibiotics could change the diversity, structure, and ecological functions of bacterial communities, stimulate a widespread abundance of antibiotic-resistant bacteria and antibiotic-resistant genes, and increase the diversity of eukaryotes, thus triggering the shift of food web structure to predatory and pathogenic. Latent Dirichlet allocation theme model analysis showed three clusters, and the research hotspots mainly included the effect of antibiotics on the denitrification process, microplastics combined with antibiotics, and methods for removing antibiotics. Furthermore, the mechanisms of microbe-mediated antibiotic degradation were unraveled, and importantly, we provided bottlenecks and future research perspectives on antibiotics and microbial diversity research.
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Affiliation(s)
- Xiaoying Mu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Simulation and Control of Goundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Zhihua Huang
- China Institute of Water Resources and Hydropower Research, Beijing, China
| | - Okugbe Ebiotubo Ohore
- Guangdong Provincial Key Laboratory of Marine Disaster Prediction and Prevention, and Guangdong Provincial Key Laboratory of Marine Biotechnology, Shantou University, Shantou, 515063, China
| | - Jinjin Yang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Simulation and Control of Goundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Kai Peng
- Taihu Laboratory for Lake Ecosystem Research, State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
| | - Shaokang Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
- State Environmental Protection Key Laboratory of Simulation and Control of Goundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China
| | - Xiang Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
- State Environmental Protection Key Laboratory of Simulation and Control of Goundwater Pollution, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China.
- Chinese Research Academy of Environmental Sciences, No. 8 Dayangfang, Beiyuan Road, Chaoyang District, Beijing, 10012, China.
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13
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Fang Y, Liu Y, Zhang J. Mechanisms for the increase in lipid production in cyanobacteria during the degradation of antibiotics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 322:121171. [PMID: 36736559 DOI: 10.1016/j.envpol.2023.121171] [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: 10/20/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 06/18/2023]
Abstract
This study evaluated the responses of cell density, photosynthesis activity, dry cell weight, lipid productivity, proteome and metabolome in two non-toxic cyanobacterial species (Synechococcus sp. and Chroococcus sp.) exposed to two frequently detected antibiotics (sulfamethoxazole and ofloxacin) at test concentrations of 0.2-20.0 μg L-1 in a 4-day culture period. Upregulated antioxidant enzymes and oxidoreductases contributed to antibiotic biodegradation in Synechococcus sp.; whereas, upregulated carotenoid protein contributed to antibiotic biodegradation in Chroococcus sp. The 4-day removal efficiencies of sulfamethoxazole and ofloxacin by cyanobacteria were 35.98-66.23% and 33.01-61.92%, respectively. In cyanobacteria, each antibiotic induced hormetic responses, such as increase in cell density, dry cell weight, and photosynthetic activity; upregulation of photosynthesis-related proteins; and elevation of lipid expression by up to 2.05-fold. Under antibiotic stress, the two cyanobacterial species preferred to store energy in the form of lipids rather than ATP, with fructose-bisphosphate aldolase playing an essential role in lipid synthesis. The downregulation of lipid transporters also facilitated lipid accumulation in Synechococcus sp. In general, the two non-toxic cyanobacterial species achieved a good combination of lipid deposition and antibiotic treatment performance, especially in Chroococcus sp. exposed to sulfamethoxazole.
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Affiliation(s)
- Youshuai Fang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
| | - Ying Liu
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China.
| | - Jian Zhang
- School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, China
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14
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Ofloxacin Degradation over Nanosized Fe3O4 Catalyst viaThermal Activation of Persulfate Ions. Catalysts 2023. [DOI: 10.3390/catal13020256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
In this work, an Fe3O4 catalyst was synthetized in a single step via electrochemical synthesis. The Fe3O4 catalyst was used to evaluate the degradation of Ofloxacin (OFX) using a heterogeneous advanced oxidation process with sodium persulfate (PS). PS activation was successfully achieved via thermal conventional heating directly and subsequently applied for the degradation of OFX. The degradation kinetics were studied under different conditions, such as catalyst and oxidant concentration and temperature. The results show that a higher reaction temperature, catalyst and initial PS dose strongly influence the degradation efficiency. Thermal activation of persulfate was tested at 20, 40 and 60 °C. At 60 °C, the half-time of OFX was 23 times greater than at 20 °C, confirming the activation of persulfate. Mineralization studies also showed that under optimized conditions (20 mM of persulfate, 1 g/L catalyst and 100 mg/L OFX), a 66% reduction in organic matter was observed, in contrast to that obtained at 40 °C and 20 °C, which was null. The reusability, as tested through the fourth reuse cycle, resulted in a 38% reduced degradation efficiency when comparing the first and last cycle. Furthermore, the electrosynthesized catalyst presented similar degradation efficiencies in both real water and MilliQ, mainly because of the Cl2− generation at high Cl− concentrations that takes place in Cl− contaminated water.
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15
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Ofloxacin and norfloxacin simultaneous detection by ERGO/GCE and its application in medicine and aquaculture wastewater. RESEARCH ON CHEMICAL INTERMEDIATES 2022. [DOI: 10.1007/s11164-022-04892-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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16
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Qiu D, Ke M, Zhang Q, Zhang F, Lu T, Sun L, Qian H. Response of microbial antibiotic resistance to pesticides: An emerging health threat. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 850:158057. [PMID: 35977623 DOI: 10.1016/j.scitotenv.2022.158057] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 06/15/2023]
Abstract
The spread of microbial antibiotic resistance has seriously threatened public health globally. Non-antibiotic stressors have significantly contributed to the evolution of bacterial antibiotic resistance. Although numerous studies have been conducted on the potential risk of pesticide pollution for bacterial antibiotic resistance, a systematic review of these concerns is still lacking. In the present study, we elaborate the mechanism underlying the effects of pesticides on bacterial antibiotic resistance acquisition as well as the propagation of antimicrobial resistance. Pesticide stress enhanced the acquisition of antibiotic resistance in bacteria via various mechanisms, including the activation of efflux pumps, inhibition of outer membrane pores for resistance to antibiotics, and gene mutation induction. Horizontal gene transfer is a major mechanism whereby pesticides influence the transmission of antibiotic resistance genes (ARGs) in bacteria. Pesticides promoted the conjugation transfer of ARGs by increasing cell membrane permeability and increased the proportion of bacterial mobile gene elements, which facilitate the spread of ARGs. This review can improve our understanding regarding the pesticide-induced generation and spread of ARGs and antibiotic resistant bacteria. Moreover, it can be applied to reduce the ecological risks of ARGs in the future.
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Affiliation(s)
- Danyan Qiu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Mingjing Ke
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Fan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Liwei Sun
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China.
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17
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Hao J, Wu L, Lu X, Zeng Y, Jia B, Luo T, He S, Liang L. A stable Fe/Co bimetallic modified biochar for ofloxacin removal from water: adsorption behavior and mechanisms. RSC Adv 2022; 12:31650-31662. [PMID: 36380923 PMCID: PMC9634719 DOI: 10.1039/d2ra05334a] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 10/24/2022] [Indexed: 11/10/2023] Open
Abstract
In this study, Fe-Co-modified biochar (FMBC) loaded with iron (Fe) and cobalt (Co) bimetals after NaOH activation was prepared by pyrolysis using forestry waste cedar bark as a raw material to study its properties and the adsorption of ofloxacin (OFX). The surface structure and chemical properties were analyzed by BET, SEM-EDS, XRD, XPS, and FTIR characterization, and the results showed that the FMBC possessed a larger specific surface area and abundant surface functional groups. FMBC conformed to pseudo-second-order kinetic and Langmuir isotherm models, indicating that the OFX adsorption process on FMBC was a monolayer adsorption process and controlled by chemisorption. The saturation adsorption capacity of FMBC was 10 times higher than that of cedar bark biochar (BC). In addition, the effects of initial pH and coexisting ions on the adsorption process were investigated, and FMBC showed good adsorption, with the best adsorption capacity at pH = 7. Multiple adsorption mechanisms, including physical and chemical interactions, were involved in the adsorption of OFX by FMBC. TG, metal leaching, different water sources, and VSM tests showed that FMBC had good stability and was easily separated from water. Finally, the reusability performance of FMBC was investigated by various methods, and after five cycles it could still reach 75.78-89.31% of the adsorption capacity before recycling. Therefore, the FMBC synthesized in this study is a promising new adsorbent.
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Affiliation(s)
- Jiajie Hao
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Lieshan Wu
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Xiaowei Lu
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Yalin Zeng
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Bing Jia
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Tingting Luo
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Shixing He
- Guangxi University, School of Resources Environment and Materials Nanning 530004 China
| | - Liuling Liang
- Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Centre Nanning 530028 China
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18
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Zhang J, Xia A, Yao D, Guo X, Lam SS, Huang Y, Zhu X, Zhu X, Liao Q. Removal of oxytetracycline and ofloxacin in wastewater by microalgae-bacteria symbiosis for bioenergy production. BIORESOURCE TECHNOLOGY 2022; 363:127891. [PMID: 36089133 DOI: 10.1016/j.biortech.2022.127891] [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: 07/30/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 06/15/2023]
Abstract
The development of microalgae-bacteria symbiosis for treating wastewater is flourishing owing to its high biomass productivity and exceptional ability to purify contaminants. A nature-selected microalgae-bacteria symbiosis, mainly consisting of Dictyosphaerium and Pseudomonas, was used to treat oxytetracycline (OTC), ofloxacin (OFLX), and antibiotic-containing swine wastewater. Increased antibiotic concentration gradually reduced biomass productivity and intricately changed symbiosis composition, while 1 mg/L OTC accelerated the growth of symbiosis. The symbiosis biomass productivity reached 3.4-3.5 g/L (5.7-15.3 % protein, 18.4-39.3 % carbohydrate, and 2.1-3.9 % chlorophyll) when cultured in antibiotic-containing swine wastewater. The symbiosis displayed an excellent capacity to remove 76.3-83.4 % chemical oxygen demand, 53.5-62.4 % total ammonia nitrogen, 97.5-100.0 % total phosphorus, 96.3-100.0 % OTC, and 32.8-60.1 % OFLX in swine wastewater. The microbial community analysis revealed that the existence of OTC/OFLX increased the richness and evenness of microalgae but reduced bacteria species in microalgae-bacteria, and the toxicity of OFLX to bacteria was stronger than that of OTC.
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Affiliation(s)
- Jingmiao Zhang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Ao Xia
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China.
| | - Dunxue Yao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xiaobo Guo
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Su Shiung Lam
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries (AKUATROP), Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand 248007, India
| | - Yun Huang
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xianqing Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Xun Zhu
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
| | - Qiang Liao
- Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Chongqing University, Ministry of Education, Chongqing 400044, China; Institute of Engineering Thermophysics, School of Energy and Power Engineering, Chongqing University, Chongqing 400044, China
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19
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Xu N, Zhang Z, Shen Y, Zhang Q, Liu Z, Yu Y, Wang Y, Lei C, Ke M, Qiu D, Lu T, Chen Y, Xiong J, Qian H. Compare the performance of multiple binary classification models in microbial high-throughput sequencing datasets. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 837:155807. [PMID: 35537509 DOI: 10.1016/j.scitotenv.2022.155807] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 05/04/2022] [Accepted: 05/05/2022] [Indexed: 06/14/2023]
Abstract
The development of machine learning and deep learning provided solutions for predicting microbiota response on environmental change based on microbial high-throughput sequencing. However, there were few studies specifically clarifying the performance and practical of two types of binary classification models to find a better algorithm for the microbiota data analysis. Here, for the first time, we evaluated the performance, accuracy and running time of the binary classification models built by three machine learning methods - random forest (RF), support vector machine (SVM), logistic regression (LR), and one deep learning method - back propagation neural network (BPNN). The built models were based on the microbiota datasets that removed low-quality variables and solved the class imbalance problem. Additionally, we optimized the models by tuning. Our study demonstrated that dataset pre-processing was a necessary process for model construction. Among these 4 binary classification models, BPNN and RF were the most suitable methods for constructing microbiota binary classification models. Using these 4 models to predict multiple microbial datasets, BPNN showed the highest accuracy and the most robust performance, while the RF method was ranked second. We also constructed the optimal models by adjusting the epochs of BPNN and the n_estimators of RF for six times. The evaluation related to performances of models provided a road map for the application of artificial intelligence to assess microbial ecology.
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Affiliation(s)
- Nuohan Xu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Yechao Shen
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Zhen Liu
- College of Mathematics and Informatics, South China Agricultural University, Guangzhou, 510642, PR China
| | - Yitian Yu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Yan Wang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Chaotang Lei
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Mingjing Ke
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Danyan Qiu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Yiling Chen
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, 510006, PR China
| | - Juntao Xiong
- College of Mathematics and Informatics, South China Agricultural University, Guangzhou, 510642, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China.
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20
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Ke M, Feng L, Huang S, Lu T, Yu Z, Yang Y, Hu H, Peijnenburg WJGM, Feng L, Qian H. Development of a Potentially New Algaecide for Controlling Harmful Cyanobacteria Blooms Which is Ecologically Safe and Selective. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10134-10143. [PMID: 35972278 DOI: 10.1021/acs.jafc.2c02489] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Harmful cyanobacterial blooms (HCBs) caused by Microcystis aeruginosa are of great concern as they negatively affect the aquatic environment and human health. Chemical methods could rapidly eradicate HCBs and have been used for many decades. However, many chemical reagents are not recommended to eliminate HCBs in the long term, given the possible destructive and toxic effects of the chemicals employed on non-target aquatic organisms. We developed a new algaecide, 2-((1,3,4-thiadiazol-2-yl)thio)-N-(4-chlorophenyl) acetamide (Q2), to control harmful cyanobacteria while being environmentally friendly and selective. In our study, Q2 effectively inhibited cyanobacterial growth, especially of M. aeruginosa, but did not affect eukaryotic algae in test concentrations. A critical mechanism was revealed by transcriptome and metagenomic results showing that Q2 affects multiple cellular targets of cyanobacteria for HCB control, including the destruction of organelles, damage in the photosynthesis center, as well as inhibition of gas vesicle growth, and these changes can be highly relevant to the decrease of quorum-sensing functional KEGG pathways. Furthermore, Q2 did not affect the microbial composition and could recover the disrupted aquatic functional pathways in a short period. This is different from the impact on ecosystem functioning of the traditionally used harmful algaecide diuron. All these results verified that Q2 could be friendly to the aquatic environment, providing a new directional choice in managing HCBs in the future.
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Affiliation(s)
- Mingjing Ke
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Lan Feng
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Shi Huang
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education; College of Chemistry, Central China Normal University, Wuhan430079, China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Zhitao Yu
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Yaohui Yang
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Hang Hu
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, Leiden2300 RA, The Netherlands
- Center for Safety of Substances and Products, National Institute of Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven3720, The Netherlands
| | - Lingling Feng
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education; College of Chemistry, Central China Normal University, Wuhan430079, China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou310014, China
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21
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Ke M, Xu N, Zhang Z, Qiu D, Kang J, Lu T, Wang T, Peijnenburg WJGM, Sun L, Hu B, Qian H. Development of a machine‐learning model to identify the impacts of pesticides characteristics on soil microbial communities from high‐throughput sequencing data. Environ Microbiol 2022; 24:5561-5573. [DOI: 10.1111/1462-2920.16175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 08/11/2022] [Indexed: 11/03/2022]
Affiliation(s)
- Mingjing Ke
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Nuohan Xu
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Zhenyan Zhang
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Danyan Qiu
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Jian Kang
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Tao Lu
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Tingzhang Wang
- Key laboratory of microbial technology and bioinformatics of Zhejiang Province Hangzhou P.R. of China
| | - W. J. G. M. Peijnenburg
- Institute of Environmental Sciences (CML) Leiden University RA Leiden 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
| | - Liwei Sun
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
| | - Baolan Hu
- Department of Environmental Science Zhejiang University Hangzhou P.R. of China
| | - Haifeng Qian
- College of Environment Zhejiang University of Technology Hangzhou P.R. of China
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22
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Yang X, Wei G, Wu P, Liu P, Liang X, Chu W. Controlling oxygen vacancies of CoMn 2O 4 by loading on planar and tubular clay minerals and its application for boosted PMS activation. JOURNAL OF HAZARDOUS MATERIALS 2022; 436:129060. [PMID: 35594679 DOI: 10.1016/j.jhazmat.2022.129060] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/22/2022] [Accepted: 04/30/2022] [Indexed: 06/15/2023]
Abstract
A representative transition metal oxide (TMO), CoMn2O4 (CMO), is recognized as an effective peroxymonosulfate (PMS) activator with disadvantages like limited reactive sites and metal leakage. Herein, novel catalysts were synthesized by anchoring CMO on kaolinite (Kln) and halloysite (Hal) matrixes, two natural clay minerals with lamellar and tubular structures, for PMS activation in pharmaceutical degradation. Hal and Kln helped to control the crystallinity of CMO spontaneously with induce oxygen vacancies (OVs), which significantly enhanced the working efficiency. The reaction rate constants of Hal/CMO and Kln/CMO towards OFX degradation were nearly triple and twice that of bare CMO, respectively, with a 60% decrease in metal usage. The formation of OVs provided additional active sites for the reaction and accelerated the electron transfer. CMO/Hal and CMO/Kln exhibited better stability and durability than CMO, while CMO/Kln showed higher structural stability with lower metal leaching after 3 rounds of reaction. The higher crystallinity of CMO/Kln resulted in less OVs, but higher structural stability. The universal applicability of CMO/Hal and CMO/Kln were verified by using three other pharmaceuticals as probes. This work shed light on the modification of TMO catalysts by introducing clay mineral substrates for the efficient and ecofriendly remediation of pharmaceuticals in wastewater.
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Affiliation(s)
- Xue Yang
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
| | - Gaoling Wei
- National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou 510650, PR China
| | - Puqiu Wu
- CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, PR China
| | - Peng Liu
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China
| | - Xiaoliang Liang
- CAS Key Laboratory of Mineralogy and Metallogeny/Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640, PR China; CAS Center for Excellence in Deep Earth Science, Guangzhou 510640, PR China.
| | - Wei Chu
- Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong.
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23
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Characterization and Ofloxacin Adsorption Studies of Chemically Modified Activated Carbon from Cassava Stem. MATERIALS 2022; 15:ma15155117. [PMID: 35897550 PMCID: PMC9329759 DOI: 10.3390/ma15155117] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/08/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023]
Abstract
Cassava is a type of crop popular in Asian countries. It can be easily cultivated and grows to a mature plant in 9 months. Considering its availability, this work studied activated carbon based on cassava stem. Ofloxacin was chosen as the adsorbate, simulating the wastewater from the pharmaceutical industry. Cassava stem was ground into particles and heated to the activated state, 787 °C. The cassava-stem-activated carbon was further treated with the surface modifier, namely sodium hydroxide and zinc chloride, to study the improvement in ofloxacin adsorption. Prepared adsorbents were characterised using the SEM, FT-IR, XRD, DSC and TGA methods before being evaluated through batch adsorption, thermodynamic, and kinetic studies. The surface area analysis indicates that treatment of the activated carbon with NaOH and ZnCl2 increases the surface area due to the removal of organic content by the chemicals. Better ofloxacin adsorption of all activated carbon samples can be obtained with solutions at pH 8. An endothermic reaction was predicted, shown by higher ofloxacin adsorption at a higher temperature, supported by a positive value of ΔH° in the thermodynamic studies. The negative values of ΔG° revealed that adsorptions were spontaneous. The higher R2 values indicate that the adsorption process follows the pseudo-second-order equation of kinetic study. The maximum adsorption capacities are 42.37, 62.11, 62.89 and 58.82 mg/g for raw cassava stem (RC), cassava-stem-activated carbon (AC), NaOH-modified cassava-stem-activated carbon (NAC), and ZnCl2 modified cassava-stem-activated carbon (ZAC). The adsorption capacity is good compared to previous works by other researchers, making it a possible alternative material for the pharmaceutical industry’s wastewater treatment.
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24
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Chen B, Pan Y, Chen Y, Zhang Z, Yang Z, Zheng M, Lu T, Jiang L, Qian H. TiO 2 nanoparticles exert an adverse effect on aquatic microbial communities. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 831:154942. [PMID: 35367556 DOI: 10.1016/j.scitotenv.2022.154942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 03/25/2022] [Accepted: 03/27/2022] [Indexed: 06/14/2023]
Abstract
Titanium dioxide nanoparticle (n-TiO2) is a widely used nanomaterial, which is inevitably released as a residue into aquatic ecosystems during material production and usage. However, the effects of n-TiO2 on aquatic microbial communities have not been completely elucidated. This study examined the toxic effects of n-TiO2 on eukaryotic and prokaryotic microbial communities in freshwater environments. We determined that n-TiO2 had a greater inhibitory effect on the growth of eukaryotic algae than cyanobacteria in monocultures. A similar phenomenon was observed in a microcosm experiment, revealing that n-TiO2 slightly reduced the content of chlorophyll-a but evidently increased the phycocyanin content. Moreover, the alpha diversity of the eukaryotic community was not affected, whereas its beta diversity increased with exposure to n-TiO2. Although n-TiO2 altered the composition of freshwater microbial communities, it did not change the functions of the prokaryotic community, which might be attributed to the functional redundancy of microbiota. Co-occurrence network analysis indicated that n-TiO2 destabilized the freshwater community, especially the eukaryotic community, and potentially disturbed the aquatic ecosystem. Our study revealed that the ecological risk of n-TiO2 on aquatic microbial communities is complex; hence, rational utilization of n-TiO2 should be emphasized.
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Affiliation(s)
- Bingfeng Chen
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yizhou Pan
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Yiling Chen
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, PR China
| | - Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Zhihan Yang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Meng Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Liying Jiang
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, PR China.
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25
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Kang J, Zhang Z, Chen Y, Zhou Z, Zhang J, Xu N, Zhang Q, Lu T, Peijnenburg WJGM, Qian H. Machine learning predicts the impact of antibiotic properties on the composition and functioning of bacterial community in aquatic habitats. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 828:154412. [PMID: 35276139 DOI: 10.1016/j.scitotenv.2022.154412] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 03/01/2022] [Accepted: 03/04/2022] [Indexed: 06/14/2023]
Abstract
In the past decades, hundreds of antibiotics have been isolated from microbial metabolites or have been artificially synthesized for protecting humans, animals and crops from microbial infections. Their everlasting usage results in impacts on the microbial community composition and causes well-known collateral damage to the functioning of microbial communities. Nevertheless, the impact of different antibiotic properties on aquatic microbial communities have so far only poorly been disentangled. Here we characterized the environmental risk of 50 main kinds of antibiotics from 9 classes at a concentration of 10 μg/L for aquatic bacterial communities via metadata analysis combined with machine learning. Metadata analysis showed that the alpha diversity of the bacterial community increased only after treatment with aminoglycoside and β-lactam antibiotics, while its structure was changed by almost all tested antibiotics. The antibiotic treatment also disturbed the functions of the bacterial community, especially with regard to metabolic pathways, including amino acids, cofactors, vitamins, xenobiotics and carbohydrate metabolism. The critical characteristics (atom stereocenter count, number of hydrogen atoms in the antibiotic, and the adipose water coefficient) of antibiotics affecting the composition of the bacterial community in aquatic habitats were screened by machine learning. The key characteristics of antibiotics affecting the function bacterial communities were the number of hydrogen atoms, molecular weight and complexity. In summary, by developing machine learning models and by performing metadata analysis, this study provides the relationship between the properties of antibiotics and their adverse impacts on aquatic microbial communities from a macro perspective. The study also provides guidance for the rational design of antibiotics.
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Affiliation(s)
- Jian Kang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Yiling Chen
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou, Guangdong 510006, PR China
| | - Zhigao Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Jinfeng Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Nuohan Xu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Qi Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China
| | - W J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, 2300, RA, Leiden, 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
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou, Zhejiang 310032, PR China.
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26
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Zhang M, Zhou Z, Zhang J, Yu Y, Sun L, Lu T, Qian H. Metagenomic ecotoxicity assessment of trace difenoconazole on freshwater microbial community. CHEMOSPHERE 2022; 294:133742. [PMID: 35090847 DOI: 10.1016/j.chemosphere.2022.133742] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/21/2022] [Accepted: 01/23/2022] [Indexed: 06/14/2023]
Abstract
Difenoconazole, a typical triazole fungicide, inhibits the activity of cytochrome P450 enzyme in fungi, and is extensively used in protecting fruits, vegetables, and cereal crops. However, reports elucidating the effects of difenoconazole on aquatic microbial communities are limited. Our study showed that difenoconazole promoted microalgae growth at concentrations ranging from 0.1 to 5 μg/L, which was similar with its environmental residual concentrations. Metagenomic analysis revealed that the aquatic microbial structure could self-regulate to cope with difenoconazole-induced stress by accumulating bacteria exhibiting pollutant degrading abilities. In the short-term, several functional pathways related to xenobiotic biodegradation and analysis were upregulated to provide ability for aquatic microbial community to process xenobiotic stress. Moreover, most disturbed ecological functions were recovered due to the redundancy of microbial communities after prolonged exposure. Furthermore, the risks associated with the dissemination of antibiotic resistance genes were enhanced by difenoconazole in the short-term. Overall, our study contributes to a comprehensive understanding of the difenoconazole-induced ecological impacts and the behavior of aquatic microbial communities that are coping with xenobiotic stress.
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Affiliation(s)
- Mengwei Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China; Department of Jianhu, Zhejiang Industry Polytechnic College, Shaoxing, 312000, PR China
| | - Zhigao Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Jinfeng Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Yitian Yu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Liwei Sun
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, PR China.
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27
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Bani A, Randall KC, Clark DR, Gregson BH, Henderson DK, Losty EC, Ferguson RM. Mind the gaps: What do we know about how multiple chemical stressors impact freshwater aquatic microbiomes? ADV ECOL RES 2022. [DOI: 10.1016/bs.aecr.2022.09.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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