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Sadeghi Hosnijeh M, Hosseini Tafreshi SA, Masoum S. Nanophycology, the merging of nanoscience into algal research: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116727. [PMID: 39024948 DOI: 10.1016/j.ecoenv.2024.116727] [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: 04/26/2024] [Revised: 07/07/2024] [Accepted: 07/11/2024] [Indexed: 07/20/2024]
Abstract
Nanophycology is recognized as one of the most important and widely used interdisciplinary sciences by creating a connection between nanotechnology on the one hand and phycology on the other hand. Algal nanoparticle biosynthesis is a starting point in studies and research related to nanophycology. Nanophycology consists of two parts, nano and phycology, and by taking advantage of the high potential of algae such as high biological safety, easy production, fast growth, and high stability in the phycology part of this science, which is also known as algology, algae nanoparticles synthesis and make this section related to nanotechnology. In this way, algae are known as factories of biological nanomaterials and cause the production of bio-stable nanotechnology and the removal of environmental pollutants released due to nanochemistry. Nanotechnology produced by algae in the science of nanophycology, due to algae's unique physical and chemical properties compared to other biological entities such as plants, fungi, and bacteria, is used in various fields including medicine, biorefining, purification Water, etc. In this review article, the most important goals of the science of nanophycology, including the biosynthesis of algal nanoparticles and the potential of these compounds in various fields of application, have been examined and discussed.
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Affiliation(s)
| | | | - Saeed Masoum
- Department of Analytical Chemistry, Faculty of Chemistry, University of Kashan, Kashan, Iran
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He X, Lin G, Zeng J, Yang Z, Wang L. Construction of algal-bacterial consortia using green microalgae Chlorella vulgaris and As(III)-oxidizing bacteria: As tolerance and metabolomic profiling. J Environ Sci (China) 2024; 139:258-266. [PMID: 38105053 DOI: 10.1016/j.jes.2023.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 12/19/2023]
Abstract
Bioremediation became a promising technology to resolve arsenic (As) contamination in aquatic environment. Since monoculture such as microalgae or bacteria was sensitive to environmental disturbance and vulnerable to contamination, green microalgae Chlorella vulgaris and arsenite (As(III)) - oxidizing bacteria Pseudomonas sp. SMS11 were co-cultured to construct algal-bacterial consortia in the current study. The effects of algae-bacteria (A:B) ratio and exposure As(III) concentration on algal growth, As speciation and metabolomic profile were investigated. Algal growth arrested when treated with 100 mg/L As(III) without the co-cultured bacteria. By contrast, co-cultured with strain SMS11 significantly enhanced As tolerance in C. vulgaris especially with A:B ratio of 1:10. All the As(III) in culture media of the consortia were oxidized into As(V) on day 7. Methylation of As was observed on day 14. Over 1% and 0.5% of total As were converted into dimethylarsinic acid (DMA) after 21 days cultivation when the initial concentrations of As(III) were 1 and 10 mg/L, respectively. Metabolomic analysis was further performed to reveal the response of consortia metabolites to external As(III). The enriched metabolomic pathways were associated with carbohydrate, amino acid and energy metabolisms. Tricarboxylic acid cycle and glyoxylate and dicarboxylate metabolism were upregulated under As stress due to their biological functions on alleviating oxidative stress and protecting cells. Both carbohydrate and amino acid metabolisms provided precursors and potential substrates for energy production and cell protection under abiotic stress. Alterations of the pathways relevant to carbohydrate or amino acid metabolism were triggered by energy requirement.
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Affiliation(s)
- Xiaoman He
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Guobing Lin
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Jiayuan Zeng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zhaoguang Yang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, China
| | - Lin Wang
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China; Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Central South University, Changsha 410083, China.
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Qian W, Chen CC, Huang Y, Zhu X. Exposure concentration ratios and biological responses play a critical role in determining the joint toxicity of TiO 2 nanoparticles and As(V) to the organism: The case study in marine algae Phaeodactylum tricornutum. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 909:168508. [PMID: 37977401 DOI: 10.1016/j.scitotenv.2023.168508] [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: 08/23/2023] [Revised: 10/30/2023] [Accepted: 11/09/2023] [Indexed: 11/19/2023]
Abstract
Environmental risks of manufactured nanomaterials (MNMs) have been widely investigated while the understanding for joint toxicity mechanism of MNMs with other contaminants is still limited. This limitation may be attributed to variations in the concentration ratios of MNMs and co-existing contaminants in the real environment. To better assess the joint toxicity and clarify its underlying mechanisms, this study exposed Phaeodactylum tricornutum to different concentration combinations of nano-sized titanium dioxide (nTiO2) and As(V) at toxic unit (TU) ratios of 1:4,1:1, and 4:1. The results demonstrated that the joint toxicity modes of nTiO2 and As(V) varied with the TU ratios exhibiting synergism for 1:4, partially addition for 1:1, and antagonism for 4:1. Specifically, at low TU ratio of 1:4, the adsorption of As(V) by nTiO2 together with the subsequent internalization of nTiO2 promoted a significant enrichment of As in algae. Simultaneously, the up-regulation of pst (phosphate transporter) genes in charge of the As(V) transport molecular further exacerbated the enrichment of inorganic As in algae, while the down-regulation of ArsM (arsenite S-adenosylmethionine methyltransferases) genes in charge of the As metabolism inhibited As biotransformation from toxic inorganic to nontoxic organic, causing the aggravated accumulation of toxic inorganic As in algae. At higher TU ratios of 1:1 and 4:1, the accumulation of As decreased in algae due to the higher sedimentation of nTiO2 and thus the lower internalization of As-adsorbed nTiO2, as well as the down-regulation of pst genes restricting the transportation of As(V) into algal cells, which jointly accelerated the As biotransformation from toxic inorganic to nontoxic organic. Our results suggest that more attention should be paid to exposure concentration ratios of MNMs and co-existing contaminants and biological responses including bioavailability, bioaccumulation, biotransformation, which would play a critical role in determining the joint toxicity to the organism.
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Affiliation(s)
- Wei Qian
- Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; School of Ecology and Environment, Hainan University, Haikou 570208, China; Shenzhen International Graduate school, Tsinghua University, Shenzhen 518055, China
| | - Ciara Chun Chen
- College of Chemistry and Chemical Engineering, Shantou University, Shantou 515063, China
| | - Yuxiong Huang
- Shenzhen International Graduate school, Tsinghua University, Shenzhen 518055, China
| | - Xiaoshan Zhu
- School of Ecology and Environment, Hainan University, Haikou 570208, China; Shenzhen International Graduate school, Tsinghua University, Shenzhen 518055, China.
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Luo Y, Zheng J, Ren Q, Wang Z, Huang F, Liu Z, Luo Z. Elevated nano-α-Fe 2O 3 enhances arsenic metabolism and dissolved organic carbon release of Microcystis aeruginosa under a phytate environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:87659-87668. [PMID: 37430079 DOI: 10.1007/s11356-023-28658-8] [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: 04/12/2023] [Accepted: 07/03/2023] [Indexed: 07/12/2023]
Abstract
Little information is available on the effects of nano-α-Fe2O3 on arsenic (As) metabolism of algae and potential associated carbon (C) storage in As-contaminated water with dissolved organic phosphorus (DOP) as a phosphorus (P) source. In this study, Microcystis aeruginosa (M. aeruginosa) was used to investigate impacts of nano-α-Fe2O3 on cell growth and As metabolism of algae under a phytate (PA) environment as well as potential associated C storage. Results showed that nano-α-Fe2O3 had a subtle influence on algal cell growth in a PA environment. Herein, algal cell density (OD680) and chlorophyll a (Chla) were inhibited at elevated nano-α-Fe2O3 levels, which simultaneously limited the decrease of Yield. As suggested, the complexation of PA with nano-α-Fe2O3 could alleviate the negative influence on algal cell growth. Furthermore, the elevated nano-α-Fe2O3 increased As methylation in the PA environment due to higher monomethylarsenic (MMA) and dimethylarsenic (DMA) concentrations in the test media. Additionally, microcystins (MCs) in the media changed consistently with UV254, both of which were relatively lower at 10.0 mg·L-1 nano-α-Fe2O3. Enhanced As(V) methylation of algal cells was found to simultaneously reduce the release risk of As(III) and MC while increasing dissolved organic carbon (DOC) content in media, suggesting unfavorable C storage. Three-dimensional fluorescence analysis revealed that the main DOC constituent was the tryptophan-like component in aromatic proteins. Correlation analysis showed that decreases in pH and the zeta potential and an increase in Chla may lead to metabolic As improvements in M. aeruginosa. The obtained findings highlight the need for greater focus on the potential risks of DOP combined with nano-α-Fe2O3 on algal blooms as well as the biogeochemical cycling processes of As and C storage in As-contaminated water with DOP as the P source.
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Affiliation(s)
- Yinchai Luo
- Key Laboratory of Karst Dynamics, Ministry of Natural Resources (MNR) and Guangxi, Institute of Karst Geology, CAGS, Guilin, 541004, China
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Jieru Zheng
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Qiuyao Ren
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhenhong Wang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Key Laboratory of Modern Separation and Analysis Science and Technology, Key Laboratory of Pollution Monitoring and Control, Zhangzhou, 363000, China
| | - Fen Huang
- Key Laboratory of Karst Dynamics, Ministry of Natural Resources (MNR) and Guangxi, Institute of Karst Geology, CAGS, Guilin, 541004, China
| | - Zixi Liu
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhuanxi Luo
- Key Laboratory of Karst Dynamics, Ministry of Natural Resources (MNR) and Guangxi, Institute of Karst Geology, CAGS, Guilin, 541004, China.
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China.
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Mohsin H, Shafique M, Zaid M, Rehman Y. Microbial biochemical pathways of arsenic biotransformation and their application for bioremediation. Folia Microbiol (Praha) 2023:10.1007/s12223-023-01068-6. [PMID: 37326815 DOI: 10.1007/s12223-023-01068-6] [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: 12/17/2022] [Accepted: 05/19/2023] [Indexed: 06/17/2023]
Abstract
Arsenic is a ubiquitous toxic metalloid, the concentration of which is beyond WHO safe drinking water standards in many areas of the world, owing to many natural and anthropogenic activities. Long-term exposure to arsenic proves lethal for plants, humans, animals, and even microbial communities in the environment. Various sustainable strategies have been developed to mitigate the harmful effects of arsenic which include several chemical and physical methods, however, bioremediation has proved to be an eco-friendly and inexpensive technique with promising results. Many microbes and plant species are known for arsenic biotransformation and detoxification. Arsenic bioremediation involves different pathways such as uptake, accumulation, reduction, oxidation, methylation, and demethylation. Each of these pathways has a certain set of genes and proteins to carry out the mechanism of arsenic biotransformation. Based on these mechanisms, various studies have been conducted for arsenic detoxification and removal. Genes specific for these pathways have also been cloned in several microorganisms to enhance arsenic bioremediation. This review discusses different biochemical pathways and the associated genes which play important roles in arsenic redox reactions, resistance, methylation/demethylation, and accumulation. Based on these mechanisms, new methods can be developed for effective arsenic bioremediation.
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Affiliation(s)
- Hareem Mohsin
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Maria Shafique
- Institute of Microbiology and Molecular Genetics, University of the Punjab, Quaid-e-Azam Campus, Lahore, Pakistan
| | - Muhammad Zaid
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan
| | - Yasir Rehman
- Department of Life Sciences, School of Science, University of Management and Technology, Lahore, Pakistan.
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Xu F, Wang Z, Chen Y, Luo Y, Luo Z. Enhancing arsenate metabolism in Microcystis aeruginosa and relieving risks of arsenite and microcystins by nano-Fe 2O 3 under dissolved organic phosphorus conditions. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121801. [PMID: 37169240 DOI: 10.1016/j.envpol.2023.121801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/13/2023]
Abstract
Little information is available on how nano-Fe2O3 substituted iron ions as a possible iron source impacting on algal growth and arsenate (As(V)) metabolism under dissolved organic phosphorus (DOP) (D-glucose-6-phosphate (GP)) conditions. We investigated the growth of Microcystis aeruginosa and As(V) metabolism together with their metabolites in As(V) aquatic environments with nano-Fe2O3 and GP as the sole iron and P sources, respectively. Results showed that nano-Fe2O3 showed inhibitory effects on M. aeruginosa growth and microcystin (MCs) release under GP conditions in As(V) polluted water. There was little influence on As species changes in GP media under different nano-Fe2O3 concentrations except for obvious total As (TAs) removal in 100 mg L-1 nano-Fe2O3 levels. As(V) metabolism dominated with As(V) biotransformation in algal cells was facilitated and arsenite (As(III)) releasing risk was relieved clearly by nano-Fe2O3 under GP conditions. The dissolved organic matter (DOM) in media exhibited more fatty acid analogs containing -CO, -CH2 =CH2, and -CH functional groups with increasing nano-Fe2O3 concentrations, but the fluorescent analogs were relatively reduced especially for the fluorescent DOM dominated by aromatic protein-like tryptophan which was significantly inhibited by nano-Fe2O3. Thus, As methylation that was facilitated in M. aeruginosa by nano-Fe2O3 in GP environments also caused more organic substances to release that absorb infrared spectra while reducing the release risks of As(III) and MCs as well as protein-containing tryptophan fractions. From 1H-NMR analysis, this might be caused by the increased metabolites of aromatic compounds, organic acid/amino acid, and carbohydrates/glucose in algal cells. The findings are vital for a better understanding of nano-Fe2O3 role-playing in As bioremediation by microalgae and the subsequent potential aquatic ecological risks.
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Affiliation(s)
- Feng Xu
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Key Laboratory of Modern, Separation and Analysis Science and Technology, Key Laboratory of Pollution Monitoring and Control, Zhangzhou, 363000, China
| | - Zhenhong Wang
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Key Laboratory of Modern, Separation and Analysis Science and Technology, Key Laboratory of Pollution Monitoring and Control, Zhangzhou, 363000, China.
| | - Yan Chen
- College of Chemistry, Chemical Engineering and Environment, Minnan Normal University, Key Laboratory of Modern, Separation and Analysis Science and Technology, Key Laboratory of Pollution Monitoring and Control, Zhangzhou, 363000, China
| | - Yinchai Luo
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Zhuanxi Luo
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
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Khanna K, Kohli SK, Kumar P, Ohri P, Bhardwaj R, Alam P, Ahmad P. Arsenic as hazardous pollutant: Perspectives on engineering remediation tools. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 838:155870. [PMID: 35568183 DOI: 10.1016/j.scitotenv.2022.155870] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 05/07/2022] [Accepted: 05/08/2022] [Indexed: 06/15/2023]
Abstract
Arsenic (As) is highly toxic metal (loid) that impairs plant growth and proves fatal towards human population. It disrupts physiological, biochemical and molecular attributes of plants associated with water/nutrient uptake, redox homeostasis, photosynthetic machineries, cell/membrane damage, and ATP synthesis. Numerous transcription factors are responsive towards As through regulating stress signaling, toxicity and resistance. Additionally, characterization of specific genes encoding uptake, translocation, detoxification and sequestration has also explained their underlying mechanisms. Arsenic within soil enters the food chain and cause As-poisoning. Plethora of conventional methods has been used since decades to plummet As-toxicity, but the success rate is quite low due to environmental hazards. Henceforth, exploration of effective and eco-friendly methods is aimed for As-remediation. With the technological advancements, we have enumerated novel strategies to address this concern for practicing such techniques on global scale. Novel strategies such as bioremediation, phytoremediation, mycorrhizae-mediated remediation, biochar, algal-remediation etc. possess extraordinary results. Moreover, nitric oxide (NO), a signaling molecule has also been explored in relieving As-stress through reducing oxidative damages and triggering antioxidative responses. Other strategies such as role of plant hormones (salicylic acid, indole-3-acetic acid, jasmonic acid) and micro-nutrients such as selenium have also been elucidated in As-remediation from soil. This has been observed through stimulated antioxidant activities, gene expression of transporters, defense genes, cell-wall modifications along with the synthesis of chelating agents such as phytochelatins and metallothioneins. This review encompasses the updated information about As toxicity and its remediation through novel techniques that serve to be the hallmarks for stress revival. We have summarised the genetic engineering protocols, biotechnological as well as nanotechnological applications in plants to combat As-toxicity.
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Affiliation(s)
- Kanika Khanna
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India; Department of Microbiology, D.A.V University, Sarmastpur, Jalandhar 144001, Punjab, India.
| | - Sukhmeen Kaur Kohli
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Pankaj Kumar
- Department of Chemical Engineering, D.A.V University, Sarmastpur, Jalandhar 144001, Punjab, India
| | - Puja Ohri
- Department of Zoology, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Renu Bhardwaj
- Department of Botanical and Environmental Sciences, Guru Nanak Dev University, Amritsar 143005, Punjab, India
| | - Pravej Alam
- Biology Department, College of Science and Humanities, Prince Sattam bin Abdulaziz University (PSAU), Alkharj, Saudi Arabia
| | - Parvaiz Ahmad
- Department of Botany, GDC Pulwama, 192301, Jammu and Kashmir, India.
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Chen Y, Wang Z, Luo Z, Zhao Y, Yu J. Decreasing arsenic accumulation but promoting arsenate biotransformation in Microcystis aeruginosa regulated by nano-Fe 2O 3. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62423-62431. [PMID: 35397725 DOI: 10.1007/s11356-022-20042-2] [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: 12/29/2021] [Accepted: 03/29/2022] [Indexed: 06/14/2023]
Abstract
Iron oxide nanoparticles (nano-Fe2O3) widely distribute in waters with low toxicity to aquatic organisms. But it is unclear for nano-Fe2O3 to affect the fate of coexisting arsenic (As) with its bioaccumulation and biotransformation. In this study, we thus mainly investigated arsenate (As(V)) toxicity, uptake kinetics, biotransformation and subcellular distribution in Microcystis aeruginosa influenced by nano-Fe2O3. The results showed that M. aeruginosa was more sensitive to As(V) associated with nano-Fe2O3. Due to the exaggerated increase of efflux rate constants of As compared with the uptake rate constants in algal cells affected by different levels of nano-Fe2O3, the As(V) bioconcentration factor decreased with nano-Fe2O3 increasing correspondingly, indicating that As bioaccumulation was diminished by nano-Fe2O3. The decreased As accumulation in M. aeruginosa could be supported by the evidential As(V) sequestration through high adsorption of nano-Fe2O3, which resulted in decreasing free As level for algae uptake in media. Meanwhile, As subcellular distribution was adjusted by nano-Fe2O3 with decreasing in cell walls and rising in cytoplasmic organelles compared with nano-Fe2O3 free. As(V) reduction and methylation were enhanced with increasing nano-Fe2O3, stimulating by its sensitivity to the interaction of nano-Fe2O3 and As(V) as well as the rising level of As in cytoplasmic organelles of this algae. It is confirmed by the higher relative gene expression levels of arsC and arsM in elevated nano-Fe2O3. Accordingly, it is highlighted to be deserved more attention that the changing behavior of As(V) by nano-Fe2O3 that reduce As bioaccumulation and accelerate its biotransformation in algae in As contaminated water.
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Affiliation(s)
- Yan Chen
- College of Chemistry, Chemical Engineering and Environment, Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Key Laboratory of Pollution Monitoring and Control, Minnan Normal University, Zhangzhou, 363000, China
| | - Zhenhong Wang
- College of Chemistry, Chemical Engineering and Environment, Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Key Laboratory of Pollution Monitoring and Control, Minnan Normal University, Zhangzhou, 363000, China.
| | - Zhuanxi Luo
- College of Chemical Engineering, Huaqiao University, Xiamen, 361021, China
| | - Yao Zhao
- College of Chemistry, Chemical Engineering and Environment, Fujian Province Key Laboratory of Modern Analytical Science and Separation Technology, Key Laboratory of Pollution Monitoring and Control, Minnan Normal University, Zhangzhou, 363000, China
| | - Jincong Yu
- Xiamen Mata Ecology Co., Ltd, Xiamen, 361021, China
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Wang J, Zhang J, Gao Y, Xiong H, Zhang W, Yan B. The ZrO 2 NPs enhanced the risk of arsenate by promoting its accumulation and reducing its detoxification during food chain transfer from Daphnia magna to zebrafish. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127338. [PMID: 34879554 DOI: 10.1016/j.jhazmat.2021.127338] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/06/2021] [Accepted: 09/21/2021] [Indexed: 06/13/2023]
Abstract
Arsenic (As) can co-occur with zirconium dioxide nanoparticles (ZrO2 NPs) in aquatic environments, but their combined influence along the aquatic food chain is barely explored. This study constructed water flea Daphnia magna - zebrafish Danio rerio to evaluate the impact of ZrO2 NPs on the accumulation, trophic transfer, transformation, and detoxification of arsenate (As(V)). The zebrafish were fed D. magna exposed to As(V), ZrO2 NPs, or As(V) + ZrO2 NPs for 20 d. Results demonstrated that ZrO2 NPs significantly facilitated total As and As(V) sorption in D. magna and in tissues of zebrafish. ZrO2 NPs enhanced the transformation of inorganic arsenic (iAs) to monomethylated acid (MMA), while decreased synthesis of arsenobetaine (AsB) in tissues, leading to iAs increased. Co-exposed As(V) and ZrO2 NPs facilitated upregulation of absorption-related genes (aqp7) and As biotransformation-related genes (gst, gss), and detoxification and oxidative stress-related genes (mt2, cat, sod1 and sod2). Therefore, genetic expression coupling with biotransformation for the first time demonstrated that As(V) combined with ZrO2 NPs led to increased harm to D. magna and zebrafish and amplified the ecological risks of As(V) along the aquatic food chain. Attention should be paid to the combined toxicity of As(V) and ZrO2 NPs in aquatic environment.
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Affiliation(s)
- Jiahui Wang
- Schools of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
| | - Jichao Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Yan Gao
- School of Environmental Science and Engineering, Shandong University, Jinan 250100, China
| | - Haiyan Xiong
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China
| | - Wei Zhang
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
| | - Bing Yan
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, China; Institute of Environmental Research at Greater Bay Area, Ministry of Education, Guangzhou University, Guangzhou 510006, China.
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Luo Z, Zhou X, Su Y, Wang H, Yu R, Zhou S, Xu EG, Xing B. Environmental occurrence, fate, impact, and potential solution of tire microplastics: Similarities and differences with tire wear particles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 795:148902. [PMID: 34328941 DOI: 10.1016/j.scitotenv.2021.148902] [Citation(s) in RCA: 80] [Impact Index Per Article: 26.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 07/04/2021] [Accepted: 07/04/2021] [Indexed: 06/13/2023]
Abstract
Tire microplastics (TMPs) are identified as one of the most abundant types of microplastics, which originate from rubber with intended or unintended release. While increasing knowledge about TMPs concentrates on tire wear particles (TWPs), TMPs from other potential sources like recycled tire crumb (RTC) and tire repair-polished debris (TRD) are much less understood. Excessive levels of TMPs and their additives have been fragmentarily reported in the environment. The accumulating environmental TMPs from different sources may directly or indirectly cause adverse impacts on the environment and human health. The objectives of this review are to (1) summarize the properties, abundance, and sources of TMPs in the environment; (2) analyze the environmental fates and behaviors of TMPs, including their roles in carrying abiotic and biotic co-contaminants; (3) evaluate the potential impacts of TMPs on terrestrial and aquatic organisms, as well as human; and (4) discuss the potential solutions to mitigate the TMP pollution. By collecting and analyzing the up-to-date literature, this review enhances our better understanding of the environmental occurrence, fates, impacts, and potential solutions of TMPs, and further highlights critical knowledge gaps and future research directions that require cooperative efforts of scientists, policymakers, and public educators.
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Affiliation(s)
- Zhuanxi Luo
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China; Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China.
| | - Xinyi Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Yu Su
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Haiming Wang
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Ruilian Yu
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Shufeng Zhou
- College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
| | - Elvis Genbo Xu
- Department of Biology, University of Southern Denmark, Odense 5230, Denmark
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA.
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Zhao YP, Cui JL, Fang LP, An YL, Gan SC, Guo PR, Chen JH. Roxarsone transformation and its impacts on soil enzyme activity in paddy soils: A new insight into water flooding effects. ENVIRONMENTAL RESEARCH 2021; 202:111636. [PMID: 34245733 DOI: 10.1016/j.envres.2021.111636] [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: 03/24/2021] [Revised: 05/25/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
The aromatic arsenical roxarsone (ROX) has been used as feed additive for decades worldwide. The past or present application of animal manure containing ROX in paddy fields results in arsenic (As) accumulation in rice grain. However, the degradation and transformation mechanisms of ROX in paddy soil which determine As bioavailability and uptake by rice are still unclear. The current study investigated the variation of As speciation and soil enzyme activities in ROX-treated soils under flooded and non-flooded conditions for six months. Our results showed that 70.2% of ROX persisted in non-flooded paddy soils after 180 d while ROX degraded completely within 7 d in flooded soils. The rapid degradation of ROX under flooded conditions owed to the enhanced biotic transformation that was caused by the low Eh and the predominant presence of Clostridium spp. and Bacillus spp. ROX was not only transformed to As(III) and As(V) in non-flooded soils but also to 3-amino-4-hydroxyphenylarsonic acid and methyl arsenicals in flooded soils. The degradation products significantly inhibited soil enzyme activities for 7-30 d, but the inhibition effects disappeared after 90 d due to the sorption of transformed As products to amorphous Fe oxides. This study provides new insights into the flooding effect on ROX fate in paddy fields, which is important for the management of animal waste and risk control on polluted sites.
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Affiliation(s)
- Yan-Ping Zhao
- Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, China
| | - Jin-Li Cui
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, China
| | - Li-Ping Fang
- Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Institute of Eco-environmental and Soil Sciences, Guangdong Academy of Sciences, Guangzhou, China
| | - Ya-Li An
- Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, China
| | - Shu-Chai Gan
- Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, China
| | - Peng-Ran Guo
- Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, China.
| | - Jiang-Han Chen
- Guangdong Provincial Engineering Research Center for Online Monitoring of Water Pollution, Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou, China.
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12
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Abd-Elhakim YM, Hashem MM, Abo-EL-Sooud K, Hassan BA, Elbohi KM, Al-Sagheer AA. Effects of Co-Exposure of Nanoparticles and Metals on Different Organisms: A Review. TOXICS 2021; 9:284. [PMID: 34822675 PMCID: PMC8623643 DOI: 10.3390/toxics9110284] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 10/18/2021] [Accepted: 10/22/2021] [Indexed: 11/24/2022]
Abstract
Wide nanotechnology applications and the commercialization of consumer products containing engineered nanomaterials (ENMs) have increased the release of nanoparticles (NPs) to the environment. Titanium dioxide, aluminum oxide, zinc oxide, and silica NPs are widely implicated NPs in industrial, medicinal, and food products. Different types of pollutants usually co-exist in the environment. Heavy metals (HMs) are widely distributed pollutants that could potentially co-occur with NPs in the environment. Similar to what occurs with NPs, HMs accumulation in the environment results from anthropogenic activities, in addition to some natural sources. These pollutants remain in the environment for long periods and have an impact on several organisms through different routes of exposure in soil, water, and air. The impact on complex systems results from the interactions between NPs and HMs and the organisms. This review describes the outcomes of simultaneous exposure to the most commonly found ENMs and HMs, particularly on soil and aquatic organisms.
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Affiliation(s)
- Yasmina M. Abd-Elhakim
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Mohamed M. Hashem
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (M.M.H.); (K.A.-E.-S.)
| | - Khaled Abo-EL-Sooud
- Department of Pharmacology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt; (M.M.H.); (K.A.-E.-S.)
| | - Bayan A. Hassan
- Pharmacology Department, Faculty of Pharmacy, Future University, Cairo 41639, Egypt;
| | - Khlood M. Elbohi
- Department of Forensic Medicine and Toxicology, Faculty of Veterinary Medicine, Zagazig University, Zagazig 44511, Egypt;
| | - Adham A. Al-Sagheer
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
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13
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Wu S, Gaillard JF, Gray KA. The impacts of metal-based engineered nanomaterial mixtures on microbial systems: A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 780:146496. [PMID: 34030287 DOI: 10.1016/j.scitotenv.2021.146496] [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: 12/28/2020] [Revised: 02/23/2021] [Accepted: 03/11/2021] [Indexed: 05/24/2023]
Abstract
The last decade has witnessed tremendous growth in the commercial use of metal-based engineered nanomaterials (ENMs) for a wide range of products and processes. Consequently, direct and indirect release into environmental systems may no longer be considered negligible or insignificant. Yet, there is an active debate as to whether there are real risks to human or ecological health with environmental exposure to ENMs. Previous research has focused primarily on the acute effects of individual ENMs using pure cultures under controlled laboratory environments, which may not accurately reveal the ecological impacts of ENMs under real environmental conditions. The goal of this review is to assess our current understanding of ENM effects as we move from exposure of single to multiple ENMs or microbial species. For instance, are ENMs' impacts on microbial communities predicted by their intrinsic physical or chemical characteristics or their effects on single microbial populations; how do chronic ENM interactions compare to acute toxicity; does behavior under simplified laboratory conditions reflect that in environmental media; finally, is biological stress modified by interactions in ENM mixtures relative to that of individual ENM? This review summarizes key findings and our evolving understanding of the ecological effects of ENMs under complex environmental conditions on microbial systems, identifies the gaps in our current knowledge, and indicates the direction of future research.
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Affiliation(s)
- Shushan Wu
- Department of Civil and Environmental Engineering, Northwestern University, USA.
| | | | - Kimberly A Gray
- Department of Civil and Environmental Engineering, Northwestern University, USA.
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14
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Xin X, Huang G, Zhang B. Review of aquatic toxicity of pharmaceuticals and personal care products to algae. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124619. [PMID: 33248823 DOI: 10.1016/j.jhazmat.2020.124619] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 11/03/2020] [Accepted: 11/05/2020] [Indexed: 06/12/2023]
Abstract
Pharmaceuticals and Personal Care Products (PPCPs) have been frequently detected in the environment around the world. Algae play a significant role in aquatic ecosystem, thus the influence on algae may affect the life of higher trophic organisms. This review provides a state-of-the-art overview of current research on the toxicity of PPCPs to algae. Nanoparticles, contained in personal care products, also have been considered as the ingredients of PPCPs. PPCPs could cause unexpected effects on algae and their communities. Chlorophyta and diatoms are more accessible and sensitive to PPCPs. Multiple algal endpoints should be considered to provide a complete evaluation on PPCPs toxicity. The toxicity of organic ingredients in PPCPs could be predicted through quantitative structure-activity relationship model, whereas the toxicity of nanoparticles could be predicted with limitations. Light irradiation can change the toxicity through affecting algae and PPCPs. pH and natural organic matter can affect the toxicity through changing the existence of PPCPs. For joint and tertiary toxicity, experiments could be conducted to reveal the toxic mechanism. For multiple compound mixture toxicity, concentration addition and independent addition models are preferred. However, there has no empirical models to study nanoparticle-contained mixture toxicity. Algae-based remediation is an emerging technology to prevent the release of PPCPs from water treatment plants. Although many individual algal species are identified for removing a few compounds from PPCPs, algal-bacterial photobioreactor is a preferable alternative, with higher chances for industrial applications.
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Affiliation(s)
- Xiaying Xin
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Civil Engineering, Memorial University, NL A1B 3X5, St. John's Canada; Institute for Energy, Environment and Sustainable Communities, University of Regina, SK S4S 0A2 Regina, Canada
| | - Gordon Huang
- Institute for Energy, Environment and Sustainable Communities, University of Regina, SK S4S 0A2 Regina, Canada.
| | - Baiyu Zhang
- Northern Region Persistent Organic Pollution Control (NRPOP) Laboratory, Civil Engineering, Memorial University, NL A1B 3X5, St. John's Canada.
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15
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Hussain MM, Wang J, Bibi I, Shahid M, Niazi NK, Iqbal J, Mian IA, Shaheen SM, Bashir S, Shah NS, Hina K, Rinklebe J. Arsenic speciation and biotransformation pathways in the aquatic ecosystem: The significance of algae. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:124027. [PMID: 33265048 DOI: 10.1016/j.jhazmat.2020.124027] [Citation(s) in RCA: 76] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 08/29/2020] [Accepted: 09/15/2020] [Indexed: 06/12/2023]
Abstract
The contamination of aquatic systems with arsenic (As) is considered to be an internationally-important health and environmental issue, affecting over 115 countries globally. Arsenic contamination of aquatic ecosystems is a global threat as it can enter the food chain from As-rich water and cause harmful impacts on the humans and other living organisms. Although different factors (e.g., pH, redox potential, iron/manganese oxides, and microbes) control As biogeochemical cycling and speciation in water systems, the significance of algal species in biotransformation of As is poorly understood. The overarching attribute of this review is to briefly elaborate various As sources and its distribution in water bodies and factors affecting As biogeochemical behavior in aqueous ecosystems. This review elucidates the intriguing role of algae in biotransformation/volatilization of As in water bodies under environmentally-relevant conditions. Also, we critically delineate As sorption, uptake, oxidation and reduction pathways of As by algae and their possible role in bioremediation of As-contaminated water (e.g., drinking water, wastewater). The current review provides the updated and useful framework for government and water treatment agencies to implement algae in As remediation programs globally.
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Affiliation(s)
- Muhammad Mahroz Hussain
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan
| | - Jianxu Wang
- State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550082, PR China; University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany; CAS Center for Excellence in Quaternary Science and Global Change, Xi'an 710061, PR China
| | - Irshad Bibi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan.
| | - Muhammad Shahid
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari 61100, Pakistan
| | - Nabeel Khan Niazi
- Institute of Soil and Environmental Sciences, University of Agriculture Faisalabad, Faisalabad 38040, Pakistan; School of Civil Engineering and Surveying, University of Southern Queensland, Toowoomba 4350, Queensland, Australia.
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, Abu Dhabi 144534, United Arab Emirates
| | - Ishaq Ahmad Mian
- Department of Soil and Environmental Sciences, The University of Agriculture Peshawar, Pakistan
| | - Sabry M Shaheen
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany; King Abdulaziz University, Faculty of Meteorology, Environment, and Arid Land Agriculture, Department of Arid Land Agriculture, Jeddah 21589, Kingdom of Saudi Arabia; Department of Soil and Water Sciences, Faculty of Agriculture, University of Kafrelsheikh, Kafr El-Sheikh 33516, Egypt
| | - Safdar Bashir
- University of Agriculture Faisalabad, Sub-campus Depalpur, Okara 56130, Pakistan
| | - Noor Samad Shah
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari Campus, Vehari 61100, Pakistan
| | - Kiran Hina
- Department of Environmental Sciences, University of Gujrat, Gujrat, Pakistan
| | - Jörg Rinklebe
- University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water, and Waste-Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, Wuppertal 42285, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, South Korea
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16
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Cruces E, Barrios AC, Cahue YP, Januszewski B, Gilbertson LM, Perreault F. Similar toxicity mechanisms between graphene oxide and oxidized multi-walled carbon nanotubes in Microcystis aeruginosa. CHEMOSPHERE 2021; 265:129137. [PMID: 33288276 DOI: 10.1016/j.chemosphere.2020.129137] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 06/12/2023]
Abstract
In photosynthetic microorganisms, the toxicity of carbon nanomaterials (CNMs) is typically characterized by a decrease in growth, viability, photosynthesis, as well as the induction of oxidative stress. However, it is currently unclear how the shape of the carbon structure in CNMs, such as in the 1-dimensional carbon nanotubes (CNTs) compared to the two-dimensional graphene oxide (GO), affects the way they interact with cells. In this study, the effects of GO and oxidized multi-walled CNTs were compared in the cyanobacterium Microcystis aeruginosa to determine the similarities or differences in how the two CNMs interact with and induce toxicity to cyanobacteria. Using change in Chlorophyll a concentrations, the effective concentrations inducing 50% inhibition (EC50) at 96 h are found to be 11.1 μg/mL and 7.38 μg/mL for GO and CNTs, respectively. The EC50 of the two CNMs were not found to be statistically different. Changes in fluorescein diacetate and 2',7'-dichlorodihydrofluorescein diacetate fluorescence, measured at the EC50 concentrations, suggest a decrease in esterase enzyme activity but no oxidative stress. Scanning and transmission electron microscopy imaging did not show extensive membrane damage in cells exposed to GO or CNTs. Altogether, the decrease in metabolic activity and photosynthetic activity without oxidative stress or membrane damage support the hypothesis that both GO and CNTs induced indirect toxicity through physical mechanisms associated with light shading and cell aggregation. This indirect toxicity explains why the intrinsic differences in shape, size, and surface properties between CNTs and GO did not result in differences in how they induce toxicity to cyanobacteria.
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Affiliation(s)
- Edgardo Cruces
- Centro de Investigaciones Costeras Universidad de Atacama, Avenida Copayapu 485, Copiapo, Chile
| | - Ana C Barrios
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, United States
| | - Yaritza P Cahue
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, United States
| | - Brielle Januszewski
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, United States
| | - Leanne M Gilbertson
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA; Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, 15261, USA
| | - François Perreault
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, 85287-3005, USA; Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, United States.
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17
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Wang Z, Jin S, Zhang F, Wang D. Combined Toxicity of TiO 2 Nanospherical Particles and TiO 2 Nanotubes to Two Microalgae with Different Morphology. NANOMATERIALS 2020; 10:nano10122559. [PMID: 33419281 PMCID: PMC7766607 DOI: 10.3390/nano10122559] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 11/22/2022]
Abstract
The joint activity of multiple engineered nanoparticles (ENPs) has attracted much attention in recent years. Many previous studies have focused on the combined toxicity of different ENPs with nanostructures of the same dimension. However, the mixture toxicity of multiple ENPs with different dimensions is much less understood. Herein, we investigated the toxicity of the binary mixture of TiO2 nanospherical particles (NPs) and TiO2 nanotubes (NTs) to two freshwater algae with different morphology, namely, Scenedesmus obliquus and Chlorella pyrenoidosa. The physicochemical properties, dispersion stability, and the generation of reactive oxygen species (ROS) were determined in the single and binary systems. Classical approaches to assessing mixture toxicity were applied to evaluate and predict the toxicity of the binary mixtures. The results show that the combined toxicity of TiO2 NPs and NTs to S. obliquus was between the single toxicity of TiO2 NTs and NPs, while the combined toxicity to C. pyrenoidosa was higher than their single toxicity. Moreover, the toxicity of the binary mixtures to C. pyrenoidosa was higher than that to S. obliquus. A toxic unit assessment showed that the effects of TiO2 NPs and NTs were additive to the algae. The combined toxicity to S. obliquus and C. pyrenoidosa can be effectively predicted by the concentration addition model and the independent action model, respectively. The mechanism of the toxicity caused by the binary mixtures of TiO2 NPs and NTs may be associated with the dispersion stability of the nanoparticles in aquatic media and the ROS-induced oxidative stress effects. Our results may offer a new insight into evaluating and predicting the combined toxicological effects of ENPs with different dimensions and of probing the mechanisms involved in their joint toxicity.
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Affiliation(s)
- Zhuang Wang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (S.J.); (F.Z.)
- Correspondence: ; Tel.: +86-25-58731090
| | - Shiguang Jin
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (S.J.); (F.Z.)
| | - Fan Zhang
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing 210044, China; (S.J.); (F.Z.)
| | - Degao Wang
- School of Environmental Science and Technology, Dalian Maritime University, Dalian 116023, China;
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18
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Qian W, Chen CC, Zhou S, Huang Y, Zhu X, Wang Z, Cai Z. TiO 2 Nanoparticles in the Marine Environment: Enhancing Bioconcentration, While Limiting Biotransformation of Arsenic in the Mussel Perna viridis. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:12254-12261. [PMID: 32866374 DOI: 10.1021/acs.est.0c01620] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The increasing use of nanoscale TiO2 particles (nTiO2) and their subsequent leakage into aquatic environments poses a threat to the ecosystem. One major concern is that nTiO2 may alter the environmental behaviors of arsenic (As) and disrupt the equilibrium of As accumulation and speciation in organisms. In this study, we investigated the effects of nTiO2 on the bioaccumulation and biotransformation of As(V) in the mussel Perna viridis. Exposure to nTiO2 significantly increased As accumulation in mussels. Our As speciation analysis demonstrated that nTiO2 treatment increased the proportion of inorganic As and reduced that of organic As, displaying inhibitory effects on the methylation and detoxification of inorganic As in mussels. Analysis of enzyme systems related to As metabolism in mussels demonstrated that nTiO2 might limit the methylation of inorganic As by suppressing the GST activity and GSH content. The strong adsorption capacity and weak desorption rate of As by nTiO2, which could result in the disruption of As distribution and decrease of the amount of As involved in biotransformation, might serve as another mechanism to the limition on As methylation in mussels. Moreover, exposure to nTiO2 disturbed the osmotic adjustment system in mussels by reducing arsenobetaine and Na+-K+-ATPase activity, resulting in enhanced toxicity of As after coexposure. The findings indicate, for the first time, that nTiO2 can block the transformation and detoxification of As in mussels, which would increase the risk of As to marine animals and even humans via the food chain, and may disrupt the biogeochemical cycle of As in natural environments.
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Affiliation(s)
- Wei Qian
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Ciara Chun Chen
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
- Institute for Advanced Study, Shenzhen University, Shenzhen 518060, P. R. China
| | - Shuang Zhou
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Yuxiong Huang
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
| | - Xiaoshan Zhu
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
- Southern Laboratory of Ocean Science and Engineering (Guangdong, Zhuhai), Zhuhai 519000, P. R. China
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environmental and Civil Engineering, Jiangnan University, Wuxi 2141122, P. R. China
| | - Zhonghua Cai
- Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, P. R. China
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19
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Li M, Liu W, Slaveykova VI. NanoTiO 2 materials mitigate mercury uptake and effects on green alga Chlamydomonas reinhardtii in mixture exposure. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2020; 224:105502. [PMID: 32480176 DOI: 10.1016/j.aquatox.2020.105502] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Revised: 04/17/2020] [Accepted: 04/28/2020] [Indexed: 06/11/2023]
Abstract
The present study examined the effect of titanium dioxide nanoparticles (nanoTiO2) and mercury (Hg) compounds on the green alga, Chlamydomonas reinhardtii. Mixtures containing nanoTiO2 of different primary sizes (5 nm, 15 nm and 20 nm), inorganic Hg (IHg) or monomethyl Hg (CH3Hg+, MeHg) were studied and compared with individual treatments. Oxidative stress and membrane damage were examined. Stability of nanoTiO2 materials in terms of hydrodynamic size and surface charge as well as Hg adsorption on different nanoTiO2 materials were characterized. The uptake of Hg compounds in the absence and presence of nanoTiO2 was also quantified. Results show that increasing concentrations of nanoTiO2 with different primary size diminished oxidative stress and membrane damage induced by high concentrations of IHg or MeHg, due to the adsorption of Hg on the nanoTiO2 aggregates and consequent decrease of cellular Hg concentrations. The observed alleviation effect of nanoTiO2 materials on Hg biouptake and toxicity was more pronounced for the materials with smaller primary size. IHg adsorbed onto the nanoTiO2 materials to a higher extent than MeHg. The present study highlights that the effects of contaminants are modulated by the co-existing engineered nanomaterials; therefore, it is essential to get a better understanding of their combined effect in the environment.
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Affiliation(s)
- Mengting Li
- Environmental Biogeochemistry and Ecotoxicology, Department F.-A. Forel for Environmental and Aquatic Sciences, School of Earth and Environmental Sciences, Faculty of Science, and Institute for Environmental Sciences, University of Geneva, Uni Carl Vogt, 66, Boulevard Carl-Vogt, CH-1211 Genève 4, Switzerland
| | - Wei Liu
- Environmental Biogeochemistry and Ecotoxicology, Department F.-A. Forel for Environmental and Aquatic Sciences, School of Earth and Environmental Sciences, Faculty of Science, and Institute for Environmental Sciences, University of Geneva, Uni Carl Vogt, 66, Boulevard Carl-Vogt, CH-1211 Genève 4, Switzerland
| | - Vera I Slaveykova
- Environmental Biogeochemistry and Ecotoxicology, Department F.-A. Forel for Environmental and Aquatic Sciences, School of Earth and Environmental Sciences, Faculty of Science, and Institute for Environmental Sciences, University of Geneva, Uni Carl Vogt, 66, Boulevard Carl-Vogt, CH-1211 Genève 4, Switzerland.
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20
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Zhu X, Zhao W, Chen X, Zhao T, Tan L, Wang J. Growth inhibition of the microalgae Skeletonema costatum under copper nanoparticles with microplastic exposure. MARINE ENVIRONMENTAL RESEARCH 2020; 158:105005. [PMID: 32501269 DOI: 10.1016/j.marenvres.2020.105005] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 04/08/2020] [Accepted: 04/27/2020] [Indexed: 05/19/2023]
Abstract
In order to investigate the combined toxicities of copper nanoparticles (nano-Cu) with microplastic on microalgae Skeletonema costatum, growth inhibition tests were carried out. The toxic effects of copper nanoparticles and microplastic on the microalgae under singleness and coexistence conditions were investigated. Both copper nanoparticles and microplastic inhibited the growth of S. costatum. The growth inhibition ratio (IR) increased with the increasing of particle concentrations and incubation time. The toxicity of copper nanoparticles was reduced with the addition of microplastic. The concentrations of Cu2+ in the medium with or without addition of microplastic were determined. It was found that adsorption of Cu2+ on microplastic and aggregation between copper nanoparticles and microplastic are the main reasons for attenuation of toxicity of nano-Cu with adding microplastic. The adhesion and aggregate interactions between microalgae and nanomaterial were also approved by the observations through scanning electron microscopy.
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Affiliation(s)
- Xiaolin Zhu
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Weihong Zhao
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao, 266071, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
| | - Xiaohua Chen
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Ting Zhao
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Liju Tan
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Jiangtao Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
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22
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Cao X, Ma C, Zhao J, Musante C, White JC, Wang Z, Xing B. Interaction of graphene oxide with co-existing arsenite and arsenate: Adsorption, transformation and combined toxicity. ENVIRONMENT INTERNATIONAL 2019; 131:104992. [PMID: 31288181 DOI: 10.1016/j.envint.2019.104992] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Revised: 06/19/2019] [Accepted: 07/01/2019] [Indexed: 06/09/2023]
Abstract
The outstanding commercial application potential of graphene oxide (GO) will inevitably lead to its increasing release into the environment, and then affect the environmental behavior and toxicity of conventional pollutants. Interactions between arsenite [As (III)]/arsenate [As (V)] with GO and their combined toxicity to Chlorella pyrenoidosa were investigated. Under abiotic conditions, approximately 42% of the adsorbed As (III) was oxidized by GO with simulated sunlight illumination, which was induced by electron-hole pairs on the surface of GO. Co-exposure with GO greatly enhanced the toxicity of As (III, V) to alga. When adding 10 mg/L GO, the 72 h median effect concentration of As (III) and As (V) to C. pyrendoidosa decreased to 12.7 and 9.4 mg/L from 30.1 and 16.3 mg/L in the As alone treatment, respectively. One possible mechanism by which GO enhanced As toxicity could be that GO decreased the phosphate concentration in the algal medium, and then increased the accumulation of As (V) in algae. In addition, transmission electron microscope (TEM) images demonstrated that GO acted as a carrier for As (III) and As (V) transport into the algal cells. Also, GO induced severe oxidative stress, which could have subsequently compromised important detoxification pathways (e.g., As complexation with glutathione, As methylation, and intracellular As efflux) in the algal cells. Our findings highlight the significant impact of GO on the fate and toxicity of As in the aquatic environment.
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Affiliation(s)
- Xuesong Cao
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China; Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States
| | - Chuanxin Ma
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Jian Zhao
- Institute of Coastal Environmental Pollution Control, Ministry of Education Key Laboratory of Marine Environment and Ecology, Ocean University of China, Qingdao 266100, China
| | - Craig Musante
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Jason C White
- Department of Analytical Chemistry, The Connecticut Agricultural Experiment Station, New Haven, CT 06504, United States
| | - Zhenyu Wang
- Institute of Environmental Processes and Pollution Control, School of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, China.
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, United States.
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Amoatey P, Baawain MS. Effects of pollution on freshwater aquatic organisms. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:1272-1287. [PMID: 31486195 DOI: 10.1002/wer.1221] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 07/16/2019] [Accepted: 08/19/2019] [Indexed: 05/24/2023]
Abstract
This paper presents the reviews of scientific papers published in 2018 issues on the effects of anthropogenic pollution on the aquatic organisms dwelling in freshwater ecosystem at global scale. The first part of the study provides the summary of relevant literature reviews followed by field and survey based studies. The second part is based on categories of different classes/sources of pollutants which affect freshwater organism. This is composed of several sections including metals and metalloids, wastewater and effluents, sediments, nutrients, pharmaceuticals, polycyclic aromatic hydrocarbons, flame retardants, persistent organic pollutants, pharmaceuticals and illicit drugs, emerging contaminants, pesticides, herbicides, and endocrine disruptors. The final part of the study highlights the reviews of published research work on new pollutants such as microplastics and engineered nanoparticles which affect the freshwater organisms. PRACTITIONER POINTS: Heavy metals concentrations should be assessed at nano-scale in aquatic environment. Air pollutants could have long-term effects on freshwater ecosystem. Future studies should focus on bioremediations of freshwater pollution.
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Affiliation(s)
- Patrick Amoatey
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, Muscat, Sultanate of Oman
| | - Mahad Said Baawain
- Department of Civil and Architectural Engineering, College of Engineering, Sultan Qaboos University, Muscat, Sultanate of Oman
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24
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Ahamed M, Akhtar MJ, Alhadlaq HA. Co-Exposure to SiO 2 Nanoparticles and Arsenic Induced Augmentation of Oxidative Stress and Mitochondria-Dependent Apoptosis in Human Cells. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16173199. [PMID: 31480624 PMCID: PMC6747183 DOI: 10.3390/ijerph16173199] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/27/2019] [Accepted: 08/29/2019] [Indexed: 12/28/2022]
Abstract
Widespread application of silica nanoparticles (nSiO2) and ubiquitous metalloid arsenic (As) may increase their chances of co-exposure to human beings in daily life. Nonetheless, studies on combined effects of nSiO2 and As in human cells are lacking. We investigated the co-exposure effects of nSiO2 and As in human liver (HepG2) and human fibroblast (HT1080) cells. Results showed that nSiO2 did not cause cytotoxicity. However, exposure of As caused oxidative stress and apoptosis in both types of cells. Interesting results were that co-exposure of a non-cytotoxic concentration of nSiO2 significantly augmented the As induced toxicity in both cells. Intracellular level of As was higher in the co-exposure group (nSiO2 + As) than the As group alone, suggesting that nSiO2 facilitates the cellular uptake of As. Co-exposure of nSiO2 and As potentiated oxidative stress indicated by pro-oxidants generation (reactive oxygen species, hydrogen peroxide and lipid peroxidation) and antioxidants depletion (glutathione level, and glutathione reductase, superoxide dismutase and catalase activities). In addition, co-exposure of nSiO2 and As also potentiated mitochondria-mediated apoptosis suggested by increased expression of p53, bax, caspase-3 and caspase-9 genes (pro-apoptotic) and decreased expression of bcl-2 gene (anti-apoptotic) along with depleted mitochondrial membrane potential. To the best of our knowledge, this is the first study showing that co-exposure of nSiO2 and As induced augmentation of oxidative stress and mitochondria-mediated apoptosis in HepG2 and HT1080 cells. Hence, careful attention is required for human health assessment following combined exposure to nSiO2 and As.
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Affiliation(s)
- Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11142, Saudi Arabia.
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11142, Saudi Arabia
| | - Hisham A Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11142, Saudi Arabia
- Department of Physics and Astronomy, College of Science, King Saud University, Riyadh 11142, Saudi Arabia
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25
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Samei M, Sarrafzadeh MH, Faramarzi MA. The impact of morphology and size of zinc oxide nanoparticles on its toxicity to the freshwater microalga, Raphidocelis subcapitata. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:2409-2420. [PMID: 30467754 DOI: 10.1007/s11356-018-3787-z] [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: 07/18/2018] [Accepted: 11/16/2018] [Indexed: 06/09/2023]
Abstract
Microalgae are key test organisms to assess the effects of chemicals on aquatic ecosystems. Zinc oxide nanoparticles (ZnO NPs) as a widely used metal oxide is considered a potential threat to these primary producers at the base of the food chain. This study investigates the toxicity of ZnO NPs, bulk ZnO, and Zn2+ to the representative of freshwater microalgae, Raphidocelis subcapitata. To examine the effect of shape and size of nanoparticles, two types of spherical ZnO NPs with different sizes (20 and 40 nm) and two types of rod-shaped ZnO NPs with different lengths (100 and 500 nm) were synthesized. Microalgal cells were exposed to eight concentrations of each ZnO NP type from 0.01 to 0.7 mg/L for 96 h. The results showed that 0.7 mg/L of ZnO NP could completely inhibit algal growth. Size did not interfere with toxicity in spherical ZnO NPs, but the toxicity decreased by increasing the size of rod-shaped ZnO NPs. Spherical ZnO NPs acted more destructive to microalgal cells than nanorod shape. The addition of 0.7 mg/L of ZnO nanorods to samples caused 30% cell death, while 50% cell death was observed by adding the same concentration of nanospherical ZnO. Nano ZnO revealed to be more toxic than bulk ZnO and Zn2+. The Zn2+ released from dissolution of ZnO NPs was one of the sources of toxicity, but the ZnO nanostructures were also an important factor in the toxicity.
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Affiliation(s)
- Mahya Samei
- UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran
| | - Mohammad-Hossein Sarrafzadeh
- UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran.
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, 1417614411, Iran.
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26
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Hussain MM, Bibi I, Shahid M, Shaheen SM, Shakoor MB, Bashir S, Younas F, Rinklebe J, Niazi NK. Biogeochemical cycling, speciation and transformation pathways of arsenic in aquatic environments with the emphasis on algae. ARSENIC SPECIATION IN ALGAE 2019. [DOI: 10.1016/bs.coac.2019.03.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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27
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Luo Z, Li M, Wang Z, Li J, Guo J, Rosenfeldt RR, Seitz F, Yan C. Effect of titanium dioxide nanoparticles on the accumulation and distribution of arsenate in Daphnia magna in the presence of an algal food. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:20911-20919. [PMID: 29766424 DOI: 10.1007/s11356-018-2265-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2017] [Accepted: 05/07/2018] [Indexed: 06/08/2023]
Abstract
The impact of titanium dioxide nanoparticles (nano-TiO2) on the bioavailability of metals in aquatic filter-feeding organisms has rarely been investigated, especially in the presence of algae as a food source. In this study, we quantified the accumulation and subcellular distribution of arsenate (AsV) in Daphnia magna in the presence of nano-TiO2 and a green alga (Scenedesmus obliquus) food source. Results showed that S. obliquus significantly increased the accumulation of total arsenic (As) and titanium (Ti) in D. magna. The presence of this food source increased As in metal-sensitive fractions (MSF) and as biologically detoxified metals (BDM), while it decreased Ti levels in MSF but increased levels as BDM. The difference in the subcellular distribution of As and Ti demonstrates the dissociation of As from nano-TiO2 during digestion at subcellular partitioning irrespective of food availability. In turn, the presence of algae was shown to increase metal-based toxicity in D. magna due to the transfer of As from BMD to MSF. Furthermore, S. obliquus significantly increased the concentration of As and Ti in soluble fractions, indicating that As and nano-TiO2 ingested by D. magna could be transferred more readily to their predators in the presence of S. obliquus. Our study shows the potential of algae to increase the toxicity and biomagnification of AsV. Furthermore, it highlights food as an important factor in the toxicity assessment of nanomaterials and co-existing pollutants.
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Affiliation(s)
- Zhuanxi Luo
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
| | - Mengting Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Zhenhong Wang
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Jinli Li
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Jianhua Guo
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China
| | - Ricki R Rosenfeldt
- Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, 76829, Landau, Germany
- nEcoTox, An der Neumuehle 2, 76855, Annweiler, Germany
| | - Frank Seitz
- Institute for Environmental Sciences, University of Koblenz-Landau, Fortstrasse 7, 76829, Landau, Germany
- nEcoTox, An der Neumuehle 2, 76855, Annweiler, Germany
| | - Changzhou Yan
- Key Laboratory of Urban Environment and Health, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, 361021, China.
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28
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Liu J, Yin P, Zhao L. Adverse effect of nano-TiO2 on the marine macroalgae Gracilaria lemaneiformis (Gracilariales, Rhodophyta): growth and antioxidant activity. RSC Adv 2018; 8:29172-29178. [PMID: 35547966 PMCID: PMC9084502 DOI: 10.1039/c8ra05156a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Accepted: 08/07/2018] [Indexed: 11/22/2022] Open
Abstract
Macroalgae, the major contributor of primary productivity in coastal seas, contribute to the material cycle and energy flow in marine ecosystems. The purpose of this work was to evaluate the toxic effect of nano-TiO2 on the growth and antioxidant activity of Gracilaria lemaneiformis. An obvious inhibition of growth was observed in this study. The algae exposed to nano-TiO2 showed a negative growth rate at 20 mg L−1 and 40 mg L−1 during the 15 days exposure. The concentration of soluble protein increased slightly during the first 3 days of exposure, but it gradually diminished thereafter due to the high concentrations of nano-TiO2 and to prolonged exposure. Nano-TiO2 caused oxidative damage in G. lemaneiformis; superoxide anions accumulated, and nitrate reductase activity decreased linearly with the increase in nano-TiO2. Furthermore, extracts of G. lemaneiformis can scavenge DPPH· and hydroxyl radicals for their antioxidant capacity. However, the capacity to scavenge DPPH· and hydroxyl radicals in vitro decreased slightly with the increase in nano-TiO2. The results from this work imply that macroalgae can be an effective biomarker of nano-TiO2 contamination and can be useful indicators to evaluate the oxidative damage of increasing pollutants in marine ecosystems. Macroalgae, the major contributor of primary productivity in coastal seas, contribute to the material cycle and energy flow in marine ecosystems.![]()
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Affiliation(s)
- Jie Liu
- Department of Chemistry
- Jinan University
- Guangzhou 510632
- People's Republic of China
| | - Pinghe Yin
- Research Center of Analytical Testing
- Jinan University
- Guangzhou 510632
- China
| | - Ling Zhao
- Department of Environmental Engineering
- Jinan University
- Guangzhou 510632
- China
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