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Zhao J, Wang X, Gao B, Xia X, Li Y. Characterization and quantification of silver complexes with dissolved organic matter by size exclusion chromatography coupled to ICP-MS. JOURNAL OF HAZARDOUS MATERIALS 2024; 466:133645. [PMID: 38310837 DOI: 10.1016/j.jhazmat.2024.133645] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/03/2024] [Accepted: 01/26/2024] [Indexed: 02/06/2024]
Abstract
The fate and behavior of silver in aquatic systems is intricately determined by its interactions with dissolved organic matter (DOM). In this study, we have introduced a method for identification and quantification of silver-DOM complexes using size exclusion chromatography-inductively coupled plasma mass spectrometry (SEC-ICP-MS). Our findings revealed that silver(I) was weakly bound to Suwannee River humic acid, fulvic acid, and natural organic matter (SRHA, SRFA, and SRNOM) in various media, resulting in facile dissociation during chromatographic separation. Suitable chromatographic conditions were determined for the elution of Ag-DOM complexes, involving the use of 0.5 mM ammonium acetate (pH 7) as the mobile phase and silver-aged column (pre-absorbing 0.1-0.7 μg silver(I)). SEC-UV and SEC-ICP-MS chromatograms revealed that Ag-binding fractions of DOM were dominated by its aromatic compounds. The quantification of silver-DOM complexes was achieved by SEC-ICP-MS combination with on-line isotope dilution. Silver at concentrations below 20 µg L-1 was mainly present in the form of organic complexes in low salinity water. These measurements aligned well with the results obtained using the equilibrium dialysis method. Species analyses of Ag-DOM complexes provide a deeper understanding of the reactivity, transport, and fate of silver in aquatic environments. ENVIRONMENTAL IMPLICATION: Ionic silver is highly toxic to aquatic organisms such as fish and zooplankton. The complexation of silver with binding sites within DOM significantly influences its speciation, mobility, and toxicity. Despite the complex and unknown structure of silver-DOM complexes, this study provided a SEC-ICP-MS method to identify and quantify these complexes in a range of media. By uncovering the formation of silver-DOM complexes across diverse media, this work enhances the comprehension of silver transformation processes and associated environmental risks in aquatic environments.
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Affiliation(s)
- Jian Zhao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xinjie Wang
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Bowen Gao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Xinghui Xia
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China
| | - Yang Li
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, School of Environment, Beijing Normal University, Beijing 100875, China; State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing 100875, China.
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2
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Cerra S, Carlini L, Salamone TA, Hajareh Haghighi F, Mercurio M, Pennacchi B, Sappino C, Battocchio C, Nottola S, Matassa R, Fratoddi I. Noble Metal Nanoparticles Networks Stabilized by Rod‐Like Organometallic Bifunctional Thiols. ChemistrySelect 2023. [DOI: 10.1002/slct.202300874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Sara Cerra
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | - Laura Carlini
- Department of Sciences Roma Tre University Via della Vasca Navale 79 00146 Rome Italy
| | - Tommaso A. Salamone
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | | | - Martina Mercurio
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | - Beatrice Pennacchi
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | - Carla Sappino
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
| | - Chiara Battocchio
- Department of Sciences Roma Tre University Via della Vasca Navale 79 00146 Rome Italy
| | - Stefania Nottola
- Department of Anatomical Histological Forensic and Orthopaedic Sciences Section of Human Anatomy Sapienza University of Rome Via A. Borelli 50 00161 Rome Italy
| | - Roberto Matassa
- Department of Anatomical Histological Forensic and Orthopaedic Sciences Section of Human Anatomy Sapienza University of Rome Via A. Borelli 50 00161 Rome Italy
| | - Ilaria Fratoddi
- Department of Chemistry Sapienza University of Rome P.le Aldo Moro 5 00185 Rome Italy
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3
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Wei M, Xiang Q, Wang P, Chen L, Ren M. Ambivalent effects of dissolved organic matter on silver nanoparticles/silver ions transformation: A review. JOURNAL OF HAZARDOUS MATERIALS 2023; 445:130533. [PMID: 37055958 DOI: 10.1016/j.jhazmat.2022.130533] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/05/2022] [Accepted: 11/29/2022] [Indexed: 06/19/2023]
Abstract
The numerous applications of silver nanoparticles (AgNPs) lead to their spread in aquatic systems and the release of silver ions (Ag+), which brings potential risks to environment and human health. Owing to the different toxicity, the mutual transformations between AgNPs and Ag+ has been a hot topic of research. Dissolved organic matter (DOM) is ubiquitous on the earth and almost participates in all the reactions in the nature. The previous studies have reported the roles of DOM played in the transformation between AgNPs and Ag+. However, different experiment conditions commonly caused contradictory results, leading to the difficulty to predict the fate of AgNPs in specific reactions. Here we summarized mechanisms of DOM-mediated AgNPs oxidation and Ag+ reduction, and analyzed the effects of environmental parameters. Moreover, the knowledge gaps, challenges, and new opportunities for research in this field are discussed. This review will promote the understanding of the fate and risk assessments of AgNPs in natural water systems.
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Affiliation(s)
- Minxiang Wei
- Institute of International River and Eco-security, Yunnan University, Kunming 650500, PR China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China
| | - Qianqian Xiang
- Institute of International River and Eco-security, Yunnan University, Kunming 650500, PR China; College of Agronomy and Life Sciences, Kunming University, Kunming 650214, PR China
| | - Peng Wang
- Institute of International River and Eco-security, Yunnan University, Kunming 650500, PR China
| | - Liqiang Chen
- Institute of International River and Eco-security, Yunnan University, Kunming 650500, PR China.
| | - Meijie Ren
- Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Sciences, Yunnan University, Kunming 650500, PR China.
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4
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Xu J, Bao S, Xiang D, Xue L, Tang W, Fang T. Effects of silver nanoparticles on denitrification and anammox in sediments of hypertrophic and mesotrophic lakes. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 858:159933. [PMID: 36343817 DOI: 10.1016/j.scitotenv.2022.159933] [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: 05/15/2022] [Revised: 10/29/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
The abundant production and wide usage of silver nanoparticles (Ag NPs) inevitably lead to their release into aquatic ecosystems. However, it is still unclear about how Ag NPs influence denitrification and anammox (DA) in freshwater sediments. To address this, the sediments of hypertrophic and mesotrophic lakes were exposed to 0.5 and 50 mg/L Ag NPs under anaerobic conditions for 7 days to explore the effects of Ag NPs on environmental variables, including redox potential (Eh), pH, organic matter (OM) and acid volatile sulfide (AVS), and the resulting influence on DA. Experimental results indicated that NO3--N and NH4+-N levels were increased by the low (p > 0.05) and high doses of Ag NPs (p < 0.05) in comparison with the non-Ag control, revealing an inhibitive impact on DA. The level of total nitrogen (TN) was notably increased by the low and high doses of Ag NPs (p < 0.05), perhaps due to inhibited enzyme activity and corresponding encoding gene abundance, which were related to generating gaseous nitrogen such as N2O and N2. In addition, environmental factor Eh was significantly raised by Ag NPs (p < 0.05), further inhibiting DA. Moreover, the quantitative analysis unveiled that denitrifying and anammox bacteria in hypertrophic lakes evinced a stronger resistance to Ag NPs toxicity than those in mesotrophic lakes. Overall, our study revealed that short-term exposure to Ag NPs could inhibit DA in sediments. These findings provide an understanding enabling evaluation and prediction of the environmental risks of Ag NPs in freshwater lakes.
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Affiliation(s)
- Jian Xu
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shaopan Bao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Dongfang Xiang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lu Xue
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Tang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Tao Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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5
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Zhao Z, Yan J, Wang T, Ma Y, Xie M, Mu X, Wang X, Zheng Z, Li Y, Li G. Multi-functional Calotropis gigantea fabric using self-assembly silk fibroin, chitosan and nano-silver microspheres with oxygen low-temperature plasma treatment. Colloids Surf B Biointerfaces 2022; 215:112488. [PMID: 35390595 DOI: 10.1016/j.colsurfb.2022.112488] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 03/26/2022] [Accepted: 03/30/2022] [Indexed: 12/11/2022]
Abstract
The present paper describes a novel multi-functional Calotropis gigantea (CG) fabric with durable antibacterial property and comfortable wearability for various applications. First, antibacterial microspheres (AMs) were prepared by self-assembly of silk fibroin (SF), chitosan (CS) and nano-silver microspheres (NSMs). Oxygen low-temperature plasma (OLTP) treatment was used to improve the adhesion between AMs and CG yarn. The AMs modified CG fabric has soft hand feeling, high moisture regain (10.37 ± 1.87%), good breathability, strong wrinkle resistance, and durable antibacterial properties. The antibacterial rate of the modified CG fabric against Escherichia coli (E. Coil) and Staphylococcus aureus (S. Aureus) is as high as 99.9 ± 0.1%, and it still has an antibacterial activity after washing 20 times (90.24 ± 0.65% and 80.25 ± 1.14%, respectively). The in vivo biocompatibility test showed clear signs of angiogenesis at the implantation site in the rats. Thus, this study offers the foundation for the development of functional CG fiber-based biomedical textiles.
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Affiliation(s)
- Zeyu Zhao
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Jia Yan
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Tao Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Yanxue Ma
- Key Laboratory of Textile Science & Technology (Donghua University), Ministry of Education, Shanghai 201620, China
| | - Maobin Xie
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital; Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China
| | - Xuan Mu
- Department of Biomedical Engineering, Tufts University, 4 Colby Street, Medford, MA 02155, USA
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
| | - Yuling Li
- Key Laboratory of Textile Science & Technology (Donghua University), Ministry of Education, Shanghai 201620, China.
| | - Gang Li
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, China.
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Zhang Q, Hu Y, Masterson CM, Jang W, Xiao Z, Bohloul A, Garcia-Rojas D, Puppala HL, Bennett G, Colvin VL. When Function is Biological: Discerning How Silver Nanoparticle Structure Dictates Antimicrobial Activity. iScience 2022; 25:104475. [PMID: 35789852 PMCID: PMC9249613 DOI: 10.1016/j.isci.2022.104475] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/05/2022] [Accepted: 05/20/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
- Qingbo Zhang
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Yue Hu
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Caitlin M. Masterson
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Wonhee Jang
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | - Zhen Xiao
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Arash Bohloul
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | | | - Hema L. Puppala
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | - George Bennett
- Department of Biosciences, Rice University, Houston, TX 77005, USA
| | - Vicki L. Colvin
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
- Corresponding author
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7
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Yonathan K, Mann R, Mahbub KR, Gunawan C. The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118506. [PMID: 34793904 DOI: 10.1016/j.envpol.2021.118506] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/14/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Nanosilver (NAg) is currently one of the major alternative antimicrobials to control microorganisms. With its broad-spectrum efficacy and lucrative commercial values, NAg has been used in medical devices and increasingly, in consumer products and appliances. This widespread use has inevitably led to the release and accumulation of the nanoparticle in water and sediment, in soil and even, wastewater treatment plants (WWTPs). This Article describes the physical and chemical transformations of NAg as well as the impact of the nanoparticle on microbial communities in different environmental settings; how the nanoparticle shifts not only the diversity and abundance of microbes, including those that are important in nitrogen cycles and decomposition of organic matters, but also their associated genes and in turn, the key metabolic processes. Current findings on the microbiological activity of the leached soluble silver, solid silver particulates and their respective transformed products, which underpin the mechanism of the nanoparticle toxicity in environmental microbes, is critically discussed. The Article also addresses the emerging evidence of silver-driven co-selection of antibiotic resistance determinants. The mechanism has been linked to the increasing pools of many antibiotic resistance genes already detected in samples from different environmental settings, which could ultimately find their ways to animals and human. The realized ecological impact of NAg calls for more judicial use of the nanoparticle. The generated knowledge can inform strategies for a better 'risks versus benefits' assessment of NAg applications, including the disposal stage.
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Affiliation(s)
- Kevin Yonathan
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Riti Mann
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Khandaker Rayhan Mahbub
- School of Life Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia; South Australian Research and Development Institute, Primary Industries and Regions SA, Urrbrae, SA 5064, Australia
| | - Cindy Gunawan
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia; School of Chemical Engineering, University of New South Wales, NSW 2052, Australia.
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8
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Bapat MS, Singh H, Shukla SK, Singh PP, Vo DVN, Yadav A, Goyal A, Sharma A, Kumar D. Evaluating green silver nanoparticles as prospective biopesticides: An environmental standpoint. CHEMOSPHERE 2022; 286:131761. [PMID: 34375828 DOI: 10.1016/j.chemosphere.2021.131761] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Revised: 07/12/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
The current method of agriculture entails the usage of excessive amounts of pesticides and fertilizers. The blatant use of conventional pesticides and fertilizers over several decades has led to their bioaccumulation with adverse effects on soil biodiversity and the development of resistance by pests. With the decline in clinically useful antibiotics and increase in multi drug resistant microbes, it is imperative to develop new and effective antimicrobial therapies. Growing awareness and demand for efficacious biorational pesticides are on the rise. Silver nanoparticles are widely known antimicrobials and have been in use for several purposes for a long time. This work reviews the implications of applying silver nanoparticles in agriculture and their possible consequences. The physiological and biochemical changes in plants due to the uptake of silver nanoparticles as a consequence of its morphology, capping biomolecules and method of application are comprehensively discussed in this review article. Studies on tolerance levels or stress due to silver nanoparticles by variation in concentration/doses on diverse flora and fauna are also analyzed here. Further, phytotoxicity and genotoxicity due to the metal as well as its transformation in soil, water and sludge are taken into account. We also gauge the potential of biogenic silver nanoparticles-viable antimicrobial agents for enhanced applications in agriculture as biopesticides.
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Affiliation(s)
- Malini S Bapat
- Cummins College of Engineering for Women, Affiliated to Savitribai Phule Pune University, Pune, 411052, India.
| | - Hema Singh
- Defence Institute of Advanced Technology, Girinagar, Pune, 411025, India
| | - Sudheesh K Shukla
- Department of Biomedical Engineering, School of Biological Engineering and Life Sciences, Shobhit University, Meerut, 250110, India
| | | | - Dai-Viet N Vo
- Institute of Environmental Sciences, Nguyen Tat Thanh University, Ho Chi Minh City, 755414, Viet Nam
| | - Alpa Yadav
- Department of Applied Chemistry, School of Vocational Studies & Applied Sciences, Gautam Budha University, Greater Noida, Uttar Pradesh, 201308, India
| | - Abhineet Goyal
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Ajit Sharma
- School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India
| | - Deepak Kumar
- School of Chemical Engineering and Physical Science, Lovely Professional University, Phagwara, Punjab, 144411, India.
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Wang X, Han T, Sun Y, Geng H, Li B, Dai H. Effects of nano metal oxide particles on activated sludge system: Stress and performance recovery mechanism. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 285:117408. [PMID: 34049134 DOI: 10.1016/j.envpol.2021.117408] [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: 02/01/2021] [Revised: 05/02/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
Nano metal oxide particles (NMOPs) are widely used in daily life because of their superior performance, and inevitably enter the sewage treatment system. Pollutants in sewage are adsorbed and degraded in wastewater treatment plants (WWTPs) depending on the microbial aggregates of activated sludge system to achieve sewage purification. NMOPs may cause ecotoxicity to the microbial community and metabolism due to their complex chemical behavior, resulting in a potential threat to the safe and steady operation of activated sludge system. It is of great significance to clarify the influencing mechanism of NMOPs on activated sludge system and reduce the risk of WWTPs. Herein, we first introduce the physicochemical behavior of six typical engineering NMOPs including ZnO, TiO2, CuO, CeO2, MgO, and MnO2 in water environment, then highlight the principal mechanisms of NMOPs for activated sludge system. In particular, the performance recovery mechanisms of activated sludge systems in the presence of NMOPs and their future development trends are well documented and discussed extensively. This review can provide a theoretical guidance and technical support for predicting and evaluating the potential threat of NMOPs on activated sludge systems, and promoting the establishment of effective control strategies and performance recovery measures of biological wastewater treatment process under the stress of NMOPs.
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Affiliation(s)
- Xingang Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China.
| | - Ting Han
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China.
| | - Yang Sun
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China.
| | - Hongya Geng
- Department of Materials, Imperial College London, Prince Consort Road, London, SW7 2AZ, UK.
| | - Bing Li
- Jiangsu Zhongchuang Qingyuan Technology Co., Ltd., Yancheng, 224000, China.
| | - Hongliang Dai
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, China; School of Environmental and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China.
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Liu Y, Li C, Luo S, Wang X, Zhang Q, Wu H. Inter-transformation between silver nanoparticles and Ag + induced by humic acid under light or dark conditions. ECOTOXICOLOGY (LONDON, ENGLAND) 2021; 30:1376-1385. [PMID: 33068202 DOI: 10.1007/s10646-020-02284-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 09/29/2020] [Indexed: 06/11/2023]
Abstract
The fate and toxicity of silver nanoparticles (AgNPs) and ions in water bodies is largely determined by the natural organic matter (NOM)-mediated redox cycling. However, the process of NOM-mediated redox cycling in the day/night cycles remains elusive. In this study, the inter-transformation between AgNPs and Ag+ ion caused by humic acid (HA) was investigated under controlled light and dark conditions. It was shown that HA induced the reduction of Ag+ into AgNPs in simulated sunlight, and also oxidize AgNPs to release Ag+ in darkness. Kinetics data demonstrated that the rates of AgNPs formation and dissolution increased along with the increment of HA concentrations. Along with the pH increase, the reduction of Ag+ accelerated, but the oxidative dissolution of AgNPs was inhibited. In day-night cycles, the AgNPs and Ag+ concentrations exhibited similar wave-shaped change curves. The peaks of AgNPs and Ag+ ion appeared at 7 p.m. and 7 a.m., respectively. The toxicity of AgNPs/Ag+ to Escherichia coli was determined primarily by the concentration of dissolved Ag+, but also affected by the particle-specific toxicity. The dual role of HA implied that previous reports about the photo-reduction of Ag+ to AgNPs by NOM should be reconsidered, and the oxidizability of HA in darkness strongly affect the transformation and toxicity of AgNPs in water.
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Affiliation(s)
- Yujia Liu
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Chao Li
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China
| | - Si Luo
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Xi Wang
- College of Resources and Environment, Hunan Agricultural University, 410128, Changsha, China
| | - Qingmei Zhang
- Hunan Provincial Environmental Protection Air Compound Pollution Prevention Engineering Technology Center, Hunan Research Academy of Environmental Science, 410004, Changsha, China.
| | - Haiyong Wu
- Soil and Fertilizer Institute of Hunan Province, Hunan Academy of Agricultural Sciences, 401125, Changsha, China.
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11
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Comprehensive Phytotoxicity Assessment Protocol for Engineered Nanomaterials. Methods Mol Biol 2021. [PMID: 34097274 DOI: 10.1007/978-1-0716-1514-0_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
Abstract
In order for nanotechnology to be sustainably applied in agriculture, emphasis should be on comprehensive assessment of multiple endpoints, including biouptake and localization of engineered nanomaterials (ENMs), potential effects on food nutrient quality, oxidative stress responses, and crop yield, before ENMs are routinely applied in consumer and agronomic products. This chapter succinctly outlines a protocol for conducting nanophytotoxicity studies focusing on nanoparticle purification and characterization, arbuscular mycorrhizal fungi (AMF)/symbiont inoculation, biouptake and translocation/localization, varied endpoints of oxidative stress responses, and crop yield.
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12
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Qian B, Zhao Y, Fan M, Zhou W, Feng S, Wang Y, Li Y, Gao B. The role of natural organic matter in the silver release from sludge generated from coagulation of wastewater spiked with silver nanoparticles. NANOIMPACT 2021; 23:100347. [PMID: 35559848 DOI: 10.1016/j.impact.2021.100347] [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: 03/25/2021] [Revised: 07/14/2021] [Accepted: 08/03/2021] [Indexed: 06/15/2023]
Abstract
Sludge is an integral part in the migration pathway of silver nanoparticles (AgNPs) from manufacture to the terrestrial environment. However, the detailed information on the role of natural organic matters (NOMs) remains limited. In this study, the sludge generated from coagulation of wastewater spiked with AgNPs (denoted as sludgeC-AgNPs) was taken as the model. Effects of humic acid (HA), alginate (AA) and bovine serum albumin (BSA) on the release amount, dynamics and speciation of silver from the sludgeC-AgNPs were investigated by a series of leaching experiments. The results showed that HA, AA and BSA in the leaching solution could enhance the silver release from the sludgeC-AgNPs. The concentrations of the dissolved and colloidal silver in the BSA solution were the highest at the initial stage of dynamic leaching. The controlling step of the silver release was internal diffusion in the HA and AA solution, while the release of dissolved silver was controlled by both chemical reaction and internal diffusion in the BSA solution. In addition, the released colloidal silver fractions in the BSA solution contained more particles with size >50 nm compared with the HA and AA solutions. The results suggested that the properties of NOMs may be the key factor affecting the transfer of AgNPs from the sludge to the terrestrial environment.
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Affiliation(s)
- Binghong Qian
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Yi Zhao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Meixia Fan
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Wenlin Zhou
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
| | - Shanshan Feng
- Environment Research Institute, Shandong University, Qingdao 266237, PR China
| | - Yan Wang
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China.
| | - Yanwei Li
- Shenzhen Research Institute, Shandong University, Shenzhen 518057, People's Republic of China.
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Jinan 250100, PR China
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Zhao J, Li Y, Wang X, Xia X, Shang E, Ali J. Ionic-strength-dependent effect of suspended sediment on the aggregation, dissolution and settling of silver nanoparticles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 279:116926. [PMID: 33751945 DOI: 10.1016/j.envpol.2021.116926] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/25/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
Suspended sediment (SS) is ubiquitous in natural waters and plays a key role in the fate of engineered nanomaterials. In this study, the effect of SS on the aggregation, settling, and dissolution of polyvinylpyrrolidone-coated silver nanoparticles (PVP-AgNPs) was investigated under environmentally relevant conditions. The heteroaggregation of AgNPs with SS was not observed at low ionic strength (≤0.01 M) due to high electrostatic repulsion and steric forces. At higher NaCl concentrations (0.1 and 0.3 M), PVP-AgNPs were found to attach onto the SS surface, and the formation of AgNP-SS heteroaggregates strongly promoted settling of PVP-AgNPs due to the overwhelming gravity force. PVP-AgNP dissolution was reduced after the addition of sediment to ultrapure water because the presence of sediment-associated dissolved organic matter (SS-DOM). The formation of an AgCl layer on PVP-AgNP surface in 0.01 M NaCl solution resulted in the minor effect of SS on AgNP dissolution. After addition of SS, the dissolved silver concentrations of PVP-AgNP increased in 0.1 and 0.3 M NaCl solution. The interactions of SS-DOM with AgNPs under different NaCl concentrations interfered the dissolution of AgNPs in sediment-laden water. This study provides new insight into the fate of AgNPs in sediment-laden water under various environmental conditions.
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Affiliation(s)
- Jian Zhao
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Yang Li
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China.
| | - Xinjie Wang
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Xinghui Xia
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
| | - Enxiang Shang
- College of Science and Technology, Hebei Agricultural University, Huanghua, Hebei, 061100, China
| | - Jawad Ali
- Key Laboratory of Water and Sediment Sciences of Ministry of Education, State Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, Beijing, 100875, China
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Yusefi-Tanha E, Fallah S, Rostamnejadi A, Pokhrel LR. Root System Architecture, Copper Uptake and Tissue Distribution in Soybean ( Glycine max (L.) Merr.) Grown in Copper Oxide Nanoparticle (CuONP)-Amended Soil and Implications for Human Nutrition. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1326. [PMID: 33050103 PMCID: PMC7600329 DOI: 10.3390/plants9101326] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/29/2020] [Accepted: 10/01/2020] [Indexed: 02/07/2023]
Abstract
Understanding the potential uptake and biodistribution of engineered nanoparticles (ENPs) in soil-grown plants is imperative for realistic toxicity and risk assessment considering the oral intake of edibles by humans. Herein, growing N-fixing symbiont (Bradyrhizobium japonicum) inoculated soybean (Glycine max (L.) Merr.) for a full lifecycle of 120 days, we assessed the potential influence of particle size (25, 50, and 250 nm) and concentration (0, 50, 100, 200, and 500 mg/kg soil) of Copper oxide nanoparticles (CuONPs) on: (1) root system architecture, (2) soil physicochemical attributes at the soil-root interface, and (3) Cu transport and accumulation in root, stem, leaf, and seed in soybean, and compared them with the soluble Cu2+ ions and water-only controls. Finally, we performed a comparative assessment of total seed Cu levels in soybean with other valuable food sources for Cu intake and discussed potential human health implications. Results showed particle size- and concentration-dependent influence of CuONPs on Cu uptake and distribution in root, stem, leaf, and seed. Alterations in root architecture (root biomass, length, volume, and area) were dependent on the Cu compound types, Cu concentrations, and their interactions. Concentration-response relationships for all three sizes of CuONPs and Cu2+ ions were found to be linear. Furthermore, CuONPs and Cu2+ ions had inhibitory effects on root growth and development. Overall, soybean responses to the smallest size of CuONPs-25 nm-were greater for all parameters tested compared to the two larger-sized CuONPs (50 nm, 250 nm) or Cu2+ ions. Results suggest that minor changes in soil-root physicochemical attributes may not be a major driver for Cu uptake in soybean. Cu bioaccumulation followed the order: root > leaf > stem > seed. Despite reduction in root architecture and seed yield, the smallest size CuONPs-25 nm led to increased total seed Cu uptake compared to the larger-sized CuONPs or Cu2+ ions. Our findings also suggest that soil amendment with CuONPs, and more so with the smallest size of CuONPs-25 nm-could significantly improve seed nutritional Cu value in soybean as reflected by the % Daily Values (DV) and are rated "Good" to "Very Good" according to the "World's Healthiest Foods" rating. However, until the potential toxicity and risk from CuONP-fortified soybean seed ingestion is characterized in humans, we caution recommending such seeds for daily human consumption when addressing food Cu-deficiency and associated diseases, globally.
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Affiliation(s)
- Elham Yusefi-Tanha
- Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahr-e Kord, Iran;
| | - Sina Fallah
- Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahr-e Kord, Iran;
| | - Ali Rostamnejadi
- Department of Electroceramics and Electrical Engineering, Malek Ashtar University of Technology, Tehran, Iran;
| | - Lok Raj Pokhrel
- Department of Public Health, The Brody School of Medicine and Department of Health Education and Promotion, College of Health and Human Performance, East Carolina University, Greenville, NC 27834, USA
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15
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Kusi J, Scheuerman PR, Maier KJ. Antimicrobial properties of silver nanoparticles may interfere with fecal indicator bacteria detection in pathogen impaired streams. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 263:114536. [PMID: 32320903 DOI: 10.1016/j.envpol.2020.114536] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 03/18/2020] [Accepted: 04/03/2020] [Indexed: 06/11/2023]
Abstract
Silver nanoparticles (AgNPs) are expected to enter aquatic systems, but there are limited data on how they might affect microbial communities in pathogen impaired streams. We examined microbial community responses to citrate-AgNP (10.9 ± 0.7 nm) and polyvinylpyrrolidone (PVP)-AgNP (11.0 ± 0.7 nm) based on microbial concentration and enzyme activity in sediment from a pathogen impaired stream. Addition of each nanoparticle to sediment caused at least a 69% decrease in microbial concentration (1,264 ± 93.6 to 127 ± 29.5 CFU/g) and a 62% decrease in β-glucosidase activity (11.7 ± 2.1 to 1.3 ± 0.3 μg/g/h). Each AgNP reduced alkaline phosphatase activity but their effects were not statistically significant. Sediment exposed to 0.108 mg Ag/kg of AgNO3 resulted in a 92% decrease in microbial concentration and a reduced enzyme activity which was not statistically significant. Measured total silver in sediments treated with AgNPs which exhibited significant inhibition effects on the microbial community ranged from 0.19 ± 0.02 to 0.39 ± 0.13 mg Ag/kg. These concentrations tested in this study are much lower than the expected concentrations (2-14 mg Ag/kg) in freshwater sediments. The results of this study demonstrate that AgNPs can alter microbial community activity and population size, which may lead to false negative fecal indicator bacteria detection and enumeration using methods that rely on β-glucosidase activity. We conclude that the presence of AgNPs in impaired streams and recreational waters can influence pathogen detection methods, potentially affecting public health risk estimates.
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Affiliation(s)
- Joseph Kusi
- Department of Environmental Health, East Tennessee State University, Johnson City, TN, United States.
| | - Phillip R Scheuerman
- Department of Environmental Health, East Tennessee State University, Johnson City, TN, United States
| | - Kurt J Maier
- Department of Environmental Health, East Tennessee State University, Johnson City, TN, United States
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16
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A Review of Metal and Metal-Oxide Nanoparticle Coating Technologies to Inhibit Agglomeration and Increase Bioactivity for Agricultural Applications. AGRONOMY-BASEL 2020. [DOI: 10.3390/agronomy10071018] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Coatings offer a means to control nanoparticle (NP) size, regulate dissolution, and mitigate runoff when added to crops through soil. Simultaneously, coatings can enhance particle binding to plants and provide an additional source of nutrients, making them a valuable component to existing nanoparticle delivery systems. Here, the surface functionalization of metal and metal-oxide nanoparticles to inhibit aggregation and preserve smaller agglomerate sizes for enhanced transport to the rooting zone and improved uptake in plants is reviewed. Coatings are classified by type and by their efficacy to mitigate agglomeration in soils with variable pH, ionic concentration, and natural organic matter profiles. Varying degrees of success have been reported using a range of different polymers, biomolecules, and inorganic surface coatings. Advances in zwitterionic coatings show the best results for maintaining nanoparticle stability in solutions even under high salinity and temperature conditions, whereas coating by the soil component humic acid may show additional benefits such as promoting dissolution and enhancing bioavailability in soils. Pre-tuning of NP surface properties through exposure to select natural organic matter, microbial products, and other biopolymers may yield more cost-effective nonagglomerating metal/metal-oxide NPs for soil applications in agriculture.
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17
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Fadare OO, Wan B, Liu K, Yang Y, Zhao L, Guo LH. Eco-Corona vs Protein Corona: Effects of Humic Substances on Corona Formation and Nanoplastic Particle Toxicity in Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:8001-8009. [PMID: 32464058 DOI: 10.1021/acs.est.0c00615] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Despite many studies on the toxicity of nanoplastic particles (NPPs) to aquatic invertebrates, the effects of ecological constituents such as humic substances (HSs) are often neglected. In our study, Daphnia magna was used to evaluate the effects of three HSs, natural organic matter (NOM), fulvic acid (FA), and humic acid (HA), on NPP toxicity and corona formation. Acute toxicities of NPPs were reduced by all HSs at environmentally relevant concentrations. NPPs elicited the upregulation of all genes related to detoxification, oxidative stress, and endocrine activity after 7 days of exposure. The presence of NOM or HA resulted in the mitigation of gene expression, whereas significantly higher upregulation of all of the genes was observed with FA. The presence of FA led to increased protein adsorption on NPPs in D. magna culture medium (eco-corona, EC) and homogenates (protein corona, PC), while there was less adsorption in the presence of HA. The highly abundant proteins identified in EC are involved in immune defense, cell maintenance, and antipredator response, while those in PC are responsible for lipid transport, antioxidant effects, and estrogen mediation. Our findings revealed the key influence of HSs on the toxicity of NPPs and provide an analytical and conceptual foundation for future study.
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Affiliation(s)
- Oluniyi O Fadare
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, People's Republic of China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Bin Wan
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, People's Republic of China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Keyang Liu
- Key Laboratory of Environmental Biotechnology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuangqing Road, Beijing 100085, People's Republic of China
| | - Yu Yang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Lixia Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, People's Republic of China
| | - Liang-Hong Guo
- Institute of Environmental and Health Sciences, China Jiliang University, 168 Xueyuan Street, Hangzhou, Zhejiang 310008, People's Republic of China
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18
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Mendonça MCP, de Jesus MB, van Gestel CAM. Protective effect of N-acetylcysteine on the toxicity of silver nanoparticles: Bioavailability and toxicokinetics in Enchytraeus crypticus. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 715:136797. [PMID: 32014764 DOI: 10.1016/j.scitotenv.2020.136797] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/14/2020] [Accepted: 01/17/2020] [Indexed: 05/21/2023]
Abstract
We previously demonstrated that N-acetylcysteine (NAC) could reduce the toxicity of silver (Ag) materials (nanoparticles (NPs) and Ag nitrate) to the soil invertebrate Enchytraeus crypticus (Oligochaeta). It remains however, unclear whether the antitoxic mechanism of NAC was caused by NAC-Ag binding in the soil or inside the organisms. This study aimed at determining the bioavailability of Ag in the soil in a 21-day toxicity test as well as the Ag uptake and elimination kinetics in E. crypticus exposed to AgNPs in LUFA 2.2 standard soil amended with low (100 mg/kg dry soil) and high (600 mg/kg dry soil) NAC concentrations. The addition of NAC to the soil alleviated the toxicity of AgNPs by decreasing the internal Ag concentration of E. crypticus in a dose-dependent manner. Indeed, NAC reduced the binding of Ag to the soil, which probably was due to the formation of soluble but biologically unavailable Ag-cysteine complexes. The reduced Ag uptake in the enchytraeids was explained from an increased elimination at high NAC levels. These findings reinforce the view that metal complexing-compounds like NAC play a key role in the modulation of AgNP toxicity and bioavailability in terrestrial environments. Further, it may inform on the potential of NAC as a remediation solution for Ag or other metal-contaminated soils.
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Affiliation(s)
- Monique Culturato Padilha Mendonça
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, São Paulo 13083-970, Brazil; Department of Ecological Science, Faculty of Science, Vrije Universiteit, Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands.
| | - Marcelo Bispo de Jesus
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, São Paulo 13083-970, Brazil
| | - Cornelis A M van Gestel
- Department of Ecological Science, Faculty of Science, Vrije Universiteit, Amsterdam, De Boelelaan 1085, 1081 HV Amsterdam, the Netherlands
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19
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Mendonça MCP, Rodrigues NP, Scott-Fordsmand JJ, Jesus MBD, Amorim MJB. The toxicity of silver nanomaterials (NM 300K) is reduced when combined with N-Acetylcysteine: Hazard assessment on Enchytraeus crypticus. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 256:113484. [PMID: 31677872 DOI: 10.1016/j.envpol.2019.113484] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/07/2019] [Accepted: 10/23/2019] [Indexed: 06/10/2023]
Abstract
The widespread production and use of silver nanomaterials (AgNMs) in consumer and medical products have been raising environmental concerns. Once in the environment, the soil is one of the major sinks of AgNMs due to e.g. sewage sludge applications, and invertebrates are directly exposed. In this study, we investigate the potential of N-acetylcysteine (NAC) to reduce the toxic effects of Ag NM300 K (and AgNO3) on the soil invertebrate Enchytraeus crypticus. Ag NM300 K induces mortality, reproduction impairment, and avoidance. The addition of NAC to the soil showed a remarkable reduction in the toxicity of Ag, indicating that NAC can act as a detoxifying agent for terrestrial organisms exposed to Ag materials. That the reduction in toxicity likely is caused by thiol groups, was confirmed by GSH and GSSH studies. Identifying the mechanisms and hence alternatives that allow the recovery of contaminated soils is an important mitigation measure to promote environmental safety and reduce the associated risks to human health. Further, it may inform on strategies to implement in safe-by-design industry development.
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Affiliation(s)
- Monique C P Mendonça
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, 13083-970, Brazil; Department of Biology, CESAM, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Natália P Rodrigues
- Department of Biology, CESAM, University of Aveiro, Aveiro, 3810-193, Portugal
| | | | - Marcelo Bispo de Jesus
- Department of Biochemistry and Tissue Biology, Institute of Biology, University of Campinas, Campinas, São Paulo, 13083-970, Brazil
| | - Mónica J B Amorim
- Department of Biology, CESAM, University of Aveiro, Aveiro, 3810-193, Portugal.
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20
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Sfriso AA, Mistri M, Munari C, Moro I, Wahsha M, Sfriso A, Juhmani AS. Hazardous effects of silver nanoparticles for primary producers in transitional water systems: The case of the seaweed Ulva rigida C. Agardh. ENVIRONMENT INTERNATIONAL 2019; 131:104942. [PMID: 31491810 DOI: 10.1016/j.envint.2019.104942] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 06/15/2019] [Accepted: 06/17/2019] [Indexed: 06/10/2023]
Abstract
The acute toxicity of citrate capped silver nanoparticles (AgNP) and silver nitrate was evaluated on the marine macroalga Ulva rigida C. Agardh (1823). Silver bioaccumulation, ultrastructural chloroplast damages verified by TEM microscopy, inhibition of primary production, neutral lipid production and oxidative stress were observed after 24 h of exposure to AgNP. The toxic effects of silver nitrate in artificial seawater started from a concentration of 0.05 ppm and was more toxic than AgNP that produced effects from a concentration of 0.1 ppm. However only AgNP induced lipid peroxidation in U. rigida. The addition of natural organic and inorganic ligands, represented by transparent exopolymer particles (TEP) and clay, drastically reduced AgNP acute toxicity in a ratio AgNP:ligand of 1:100 and 1:200, respectively. The findings suggest a marked toxicity of Ag on marine macroalgae which however should be mitigated by the high natural ligand concentrations of the transitional environments.
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Affiliation(s)
- Andrea Augusto Sfriso
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy.
| | - Michele Mistri
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Cristina Munari
- Department of Chemical and Pharmaceutical Sciences, University of Ferrara, Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Isabella Moro
- Department of Biology, University of Padova, Via U. Bassi, 58/B, 35131 Padova, Italy
| | - Mohammad Wahsha
- Marine Science Station, The University of Jordan, Aqaba branch, Jordan
| | - Adriano Sfriso
- Department of Environmental Sciences Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30170 Mestre, Italy
| | - Abdul-Salam Juhmani
- Department of Environmental Sciences Informatics and Statistics, Ca' Foscari University of Venice, Via Torino 155, 30170 Mestre, Italy
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21
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Fernando I, Zhou Y. Concentration dependent effect of humic acid on the transformations of silver nanoparticles. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.04.027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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22
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Antibacterial effect and wound healing ability of silver nanoparticles incorporation into chitosan-based nanofibrous membranes. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 98:1053-1063. [DOI: 10.1016/j.msec.2019.01.073] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Revised: 12/16/2018] [Accepted: 01/16/2019] [Indexed: 11/18/2022]
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23
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Choi S, Zhao Y, Yu J. Generation of luminescent silver nanodots in the presence of amino silane and sodium polyacrylate. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.01.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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24
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Zhang W, Ke S, Sun C, Xu X, Chen J, Yao L. Fate and toxicity of silver nanoparticles in freshwater from laboratory to realistic environments: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:7390-7404. [PMID: 30673947 DOI: 10.1007/s11356-019-04150-0] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 01/02/2019] [Indexed: 06/09/2023]
Abstract
The fate and risk assessment of silver nanoparticles (Ag NPs) is an important environmental health issue. The toxic effects, mechanisms, and modes of action of Ag NPs on aquatic organisms have been extensively determined in the laboratory. However, knowledge gaps and discrepancies exist between laboratory studies and realistic environmental research; such inconsistencies hinder the development of health and safety regulations. To bridge these gaps, this review summarizes how environmental conditions and the physicochemical properties of Ag NPs affect the inconsistent findings between laboratory studies and realistic environmental research. Moreover, this paper systematically reviews different toxic effects of Ag NPs in a realistic environment and compares these effects with those in the laboratory, which is helpful for assessing the environmental fate and risk of Ag NPs. The hazardous effects of Ag NPs on the whole aquatic ecosystem with low concentrations (μg L-1) and long-term periods (months to years) are detailed. Furthermore, two perspectives of future toxicity studies of Ag NPs in realistic freshwater environments are emphasized.
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Affiliation(s)
- Weicheng Zhang
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
| | - Song Ke
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Caiyun Sun
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Xin Xu
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Jibao Chen
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for the Water Source Region of Mid-line of the South-to-North Diversion Project of Henan Province, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
- Henan Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project, Nanyang Normal University, 1638 Wolong Road, Nanyang, Henan Province, China.
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25
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Zhang W, Huang J, Liang L, Yao L, Fang T. Dual impact of dissolved organic matter on cytotoxicity of PVP-Ag NPs to Escherichia coli: Mitigation and intensification. CHEMOSPHERE 2019; 214:754-763. [PMID: 30296763 DOI: 10.1016/j.chemosphere.2018.09.179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Revised: 09/21/2018] [Accepted: 09/29/2018] [Indexed: 06/08/2023]
Abstract
Cytotoxicity of silver nanoparticles (Ag NPs) is attributed to silver internalization, which can be depressed by dissolved organic matter (DOM) to form Ag-DOM. Ag-DOM are bioavailable and then silver internalization could be increased. Herein, 3 and 48-h Escherichia coli viability bioassays were employed to evaluate effect of fulvic acid and humic acid (10 mg L-1) on cytotoxicity of 30 and 100 nm PVP-Ag NPs. Moreover, zebrafish embryos were used as reference model to understand silver internalization routes. Ag ions or Ag-DOM internalization varied in routes to Escherichia coli and zebrafish embryos. Cytotoxicity mechanisms of PVP-Ag NPs are dynamic. In 3-h bioassays, cytotoxicity of PVP-Ag NPs mainly involves Ag particle-related toxicity. DOM significantly mitigated cytotoxicity of PVP-Ag NPs (p < 0.05) through adhering on surface of PVP-Ag NPs. Ag ions or Ag-DOM were hardly internalized into Escherichia coli cells during 3-h exposures duration. In 48-h bioassays, cytotoxicity of PVP-Ag NPs is dependent on Ag ion-related and particle-related toxicity. Silver was internalized into Escherichia coli via Ag-DOM consumption as an indirect route. Thus, DOM promoted silver internalization into Escherichia coli but not into zebrafish embryos, significantly intensifying cytotoxicity (p < 0.05). The results suggested DOM has a dual impact on cytotoxicity of PVP-Ag NPs: mitigation and intensification. For risk assessment, it should be considered that cytotoxicity mechanisms of PVP-Ag NPs are dynamic and threats can be intensified by DOM during prolonged exposure.
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Affiliation(s)
- Weicheng Zhang
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
| | - Jiaolong Huang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Lei Liang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Lunguang Yao
- Collaborative Innovation Center of Water Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang 473061, China.
| | - Tao Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; University of Chinese Academy of Sciences, Beijing 100049, China.
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Mehennaoui K, Cambier S, Serchi T, Ziebel J, Lentzen E, Valle N, Guérold F, Thomann JS, Giamberini L, Gutleb AC. Do the pristine physico-chemical properties of silver and gold nanoparticles influence uptake and molecular effects on Gammarus fossarum (Crustacea Amphipoda)? THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1200-1215. [PMID: 30189536 DOI: 10.1016/j.scitotenv.2018.06.208] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/16/2018] [Accepted: 06/17/2018] [Indexed: 06/08/2023]
Abstract
The specific and unique properties of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs), make them of high interest for different scientific and industrial applications. Their increasing use will inevitably lead to their release in the environment and aquatic ecosystems where they may represent a threat to aquatic organisms. Being a widespread and important component of the aquatic macroinvertebrate assemblage, amphipods and more specifically Gammarus fossarum will certainly be exposed to AgNPs and AuNPs. For these reasons, G. fossarum was selected as model organism for this study. The aim of the present work was the evaluation of the influence of both size (20, 40 and 80 nm) and surface coating (citrate CIT, polyethylene glycol PEG) on the acute toxicity of AgNPs and AuNPs on G. fossarum. We investigated the effects of AgNPs and AuNPs on the uptake by G. fossarum, NP tissue distribution and the expression of stress related genes by the use of ICP-MS, NanoSIMS50, Cytoviva®, and Rt-qPCR, respectively. Ag and Au bioaccumulation revealed a significant surface-coating dependence, with CIT-AgNPs and CIT-AuNPs showing the higher bio-accumulation potential in G. fossarum as compared to PEG-NPs. Opposite to that, no size-dependent effects on the bioaccumulation potential was observed. SIMS imaging and CytoViva® revealed an influence of the type of metal on the tissue distribution after uptake, with AgNPs detected in the cuticle and the gills of G. fossarum, while AuNPs were detected in the gut area. Furthermore, AgNPs were found to up-regulate CuZnSOD gene expression while AuNPs led to its down-regulation. Modulation of SOD may indicate generation of reactive species of oxygen and a possible activation of antioxidant defence in order to prevent and defend the organism from oxidative stress. However, further investigations are still needed to better define the mechanisms underlying the observed AgNPs and AuNPs effects.
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Affiliation(s)
- Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg; Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France
| | - Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Tommaso Serchi
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Johanna Ziebel
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Esther Lentzen
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Nathalie Valle
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - François Guérold
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France
| | - Jean-Sébastien Thomann
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Laure Giamberini
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France.
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg.
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Kidd JM, Hanigan D, Truong L, Hristovski K, Tanguay R, Westerhoff P. Developing and interpreting aqueous functional assays for comparative property-activity relationships of different nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 628-629:1609-1616. [PMID: 30045577 DOI: 10.1016/j.scitotenv.2018.02.107] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Revised: 02/08/2018] [Accepted: 02/09/2018] [Indexed: 06/08/2023]
Abstract
It is difficult to relate intrinsic nanomaterial properties to their functional behavior in the environment. Unlike frameworks for dissolved organic chemicals, there are few frameworks comparing multiple and inter-related properties of engineered nanomaterials (ENMs) to their fate, exposure, and hazard in environmental systems. We developed and evaluated reproducibility and inter-correlation of 12 physical, chemical, and biological functional assays in water for eight different engineered nanomaterials (ENMs) and interpreted results using activity-profiling radar plots. The functional assays were highly reproducible when run in triplicate (average coefficient of variation [CV]=6.6%). Radar plots showed that each nanomaterial exhibited unique activity profiles. Reactivity assays showed dissolution or aggregation potential for some ENMs. Surprisingly, multi-walled carbon nanotubes (MWCNTs) exhibited movement in a magnetic field. We found high inter-correlations between cloud point extraction (CPE) and distribution to sewage sludge (R2=0.99), dissolution at pH8 and pH4.9 (R2=0.98), and dissolution at pH8 and zebrafish mortality at 24hpf (R2=0.94). Additionally, most ENMs tend to distribute out of water and into other phases (i.e., soil surfaces, surfactant micelles, and sewage sludge). The activity-profiling radar plots provide a framework and estimations of likely ENM disposition in the environment.
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Affiliation(s)
- Justin M Kidd
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, School of Sustainable Engineering and the Built Environment, Tempe, AZ 85287-3005, United States
| | - David Hanigan
- Department of Civil and Environmental Engineering, University of Nevada, Reno, Nevada 89557-0258, United States
| | - Lisa Truong
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Marine and Freshwater Biomedical Sciences Center, Oregon State University, Corvallis, OR 97331-7301, United States
| | - Kiril Hristovski
- The Polytechnic School, Fulton Schools of Engineering, Arizona State University, Mesa, AZ 85212, United States
| | - Robert Tanguay
- Department of Environmental and Molecular Toxicology, Environmental Health Sciences Center, Marine and Freshwater Biomedical Sciences Center, Oregon State University, Corvallis, OR 97331-7301, United States
| | - Paul Westerhoff
- Nanosystems Engineering Research Center for Nanotechnology-Enabled Water Treatment, Arizona State University, School of Sustainable Engineering and the Built Environment, Tempe, AZ 85287-3005, United States.
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Afshinnia K, Marrone B, Baalousha M. Potential impact of natural organic ligands on the colloidal stability of silver nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:1518-1526. [PMID: 29996448 DOI: 10.1016/j.scitotenv.2017.12.299] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 12/24/2017] [Accepted: 12/25/2017] [Indexed: 06/08/2023]
Abstract
Interaction of natural organic matter (NOM) with engineered nanoparticles (NPs) determine NP fate, transport, and environmental persistence. However, the effect of NOM chemical composition, structure, and concentration on aggregation kinetics and dissolution behavior of silver nanoparticles (AgNPs) are still poorly understood because of heterogeneity and variability in NOM and AgNP properties. Here, aggregation behavior of citrate-coated silver nanoparticles (cit-AgNPs with a z-average diameter of 18nm) was investigated in the presence of l-cysteine (l-cys) and N-acetyl l-cysteine (NAL-cys) using UV-vis spectroscopy. We also investigated the effect of Suwannee River fulvic acid (SRFA) and a NOM isolated from the Yukon River (YRNOM) on the stability of cit-AgNPs. The dissolution of cit-AgNPs decreased with increased L-cys and NAL-cys concentration from 0 to 10μM. The critical coagulation concentration (CCC) of cit-AgNPs decreased in the presence of l-cys and increased in the presence of NAL-cys. Similarly, l-cys destabilizes cit-AgNPs in the presence of SRFA. The differences in the stability of cit-AgNPs in the presence of l-cys and NAL-cys can be attributed to the differences in the functional groups in these two cysteine molecules. l-cys has both negatively charged carboxylic group and a positively charged amine group, resulting in bridging between different particles. NAL-cys is a derivative of cysteine wherein an acetyl group is attached to the nitrogen atom thus shielding the positive charge on the amine group and therefore eliminating the bridging interaction mechanism. SRFA and YRNOM enhanced the stability of cit-AgNPs and increased the CCC value to higher counter ion concentrations. The concentration of SRFA (1-5mgL-1) did not affect the CCC, whereas the increased concentration of YRNOM increased the CCC of cit-AgNPs to high Na+ concentrations likely due to increased sorption of higher molecular weight compounds on the surface of cit-AgNPs. The outcome of this study suggests the importance of understanding the molecular properties of NOM (e.g. functional groups and molecular weight) in determining cit-AgNP environmental behaviors.
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Affiliation(s)
- Kamelia Afshinnia
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - Brandon Marrone
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - Mohammed Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States.
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López-Moreno ML, Cedeño-Mattei Y, Bailón-Ruiz SJ, Vazquez-Nuñez E, Hernandez-Viezcas JA, Perales-Pérez OJ, la Rosa GD, Peralta-Videa JR, Gardea-Torresdey JL. Environmental behavior of coated NMs: Physicochemical aspects and plant interactions. JOURNAL OF HAZARDOUS MATERIALS 2018; 347:196-217. [PMID: 29331809 DOI: 10.1016/j.jhazmat.2017.12.058] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/17/2017] [Accepted: 12/21/2017] [Indexed: 06/07/2023]
Abstract
The application of nanomaterials (NMs) depends on several characteristics, including polydispersity, shape, surface charge, and composition, among others. However, the specific surface properties of bare NMs induce aggregation, reducing their utilization. Thus, different surface coverages have been developed to avoid or minimize NMs aggregation, making them more stable for the envisioned applications. Carbon-based NMs are usually coated with metals, while metal-based NMs are coated with natural organic compounds including chitosan, dextran, alginate, or citric acid. On the other hand, the coating process is expected to modify the surface properties of the NMs; several coating agents add negative or positive charges to the particles, changing their interaction with the environment. In this review, we analyze the most recent literature about coating processes and the behavior of coated NMs in soil, water, and plants. In particular, the behavior of the most commercialized metal-based NMs, such as TiO2, ZnO, CeO2, CuO, Ag, and Au, and carbon-based NMs are discussed in this review. The available articles about the effects of coated NMs in plants are discussed. Up to now, there is no uniformity in the information to ensure that the surface coverage increases or decreases the effects of NMs in plants. While some parameters are increased, others are decreased. Since the data is contradictory in some cases, the available literature does not allow researchers to determine what concentrations benefit the plants. This review highlights current results and future perspectives on the study of the effects of coated NMs in the environment.
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Affiliation(s)
- Martha L López-Moreno
- Chemistry Department, University of Puerto Rico at Mayaguez, 259 Boulevard Alfonso Valdez, Mayaguez 00681 Puerto Rico; Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States.
| | - Yarilyn Cedeño-Mattei
- Department of Chemistry and Physics, University of Puerto Rico, Ponce, Puerto Rico; Department of Biology, Chemistry, and Environmental Sciences, Interamerican University of Puerto Rico, San Germán, Puerto Rico
| | - Sonia Janet Bailón-Ruiz
- Chemistry and Physics Department, University of Puerto Rico in Ponce, 2152 Santiago de los Caballeros Avenue, Ponce 00734 Puerto Rico
| | - Edgar Vazquez-Nuñez
- Sciences and Engineering Division, University of Guanajuato, Loma del Bosque 103, Col. Lomas del Campestre, C.P. 37150 Guanajuato, Gto., Mexico
| | - José A Hernandez-Viezcas
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States
| | - Oscar Juan Perales-Pérez
- Department of Engineering Sciences and Materials University of Puerto Rico Mayaguez, 00681 Puerto Rico
| | - Guadalupe De la Rosa
- UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Sciences and Engineering Division, University of Guanajuato, Loma del Bosque 103, Col. Lomas del Campestre, C.P. 37150 Guanajuato, Gto., Mexico
| | - José R Peralta-Videa
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, United States
| | - Jorge L Gardea-Torresdey
- Chemistry Department, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; UC Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968, United States; Environmental Science and Engineering PhD Program, The University of Texas at El Paso, 500 West University Avenue, El Paso, TX, 79968, United States
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30
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Líbalová H, Costa PM, Olsson M, Farcal L, Ortelli S, Blosi M, Topinka J, Costa AL, Fadeel B. Toxicity of surface-modified copper oxide nanoparticles in a mouse macrophage cell line: Interplay of particles, surface coating and particle dissolution. CHEMOSPHERE 2018; 196:482-493. [PMID: 29324388 DOI: 10.1016/j.chemosphere.2017.12.182] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Revised: 12/02/2017] [Accepted: 12/28/2017] [Indexed: 05/25/2023]
Abstract
The rapid dissolution of copper oxide (CuO) nanoparticles (NPs) with release of ions is thought to be one of the main factors modulating their toxicity. Here we assessed the cytotoxicity of a panel of CuO NPs (12 nm ± 4 nm) with different surface modifications, i.e., anionic sodium citrate (CIT) and sodium ascorbate (ASC), neutral polyvinylpyrrolidone (PVP), and cationic polyethylenimine (PEI), versus the pristine (uncoated) NPs, using a murine macrophage cell line (RAW264.7). Cytotoxicity, reactive oxygen species (ROS) production, and cellular uptake were assessed. The cytotoxicity results were analyzed by the benchmark dose (BMD) method and the NPs were ranked based on BMD20 values. The PEI-coated NPs were found to be the most cytotoxic. Despite the different properties of the coating agents, NP dissolution in cell medium was only marginally affected by surface modification. Furthermore, CuCl2 (used as an ion control) elicited significantly less cytotoxicity when compared to the CuO NPs. We also observed that the antioxidant, N-acetylcysteine, failed to protect against the cytotoxicity of the uncoated CuO NPs. Indeed, the toxicity of the surface-modified CuO NPs was not directly linked to particle dissolution and subsequent Cu burden in cells, nor to cellular ROS production, although CuO-ASC NPs, which were found to be the least cytotoxic, yielded lower levels of ROS in comparison to pristine NPs. Hierarchical cluster analysis suggested, instead, that the toxicity in the current in vitro model could be explained by synergistic interactions between the NPs, their dissolution, and the toxicity of the coating agents.
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Affiliation(s)
- Helena Líbalová
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Pedro M Costa
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Magnus Olsson
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Lucian Farcal
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Simona Ortelli
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Faenza, Italy
| | - Magda Blosi
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Faenza, Italy
| | - Jan Topinka
- Institute of Experimental Medicine, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Anna L Costa
- Institute of Science and Technology for Ceramics, National Research Council of Italy, Faenza, Italy
| | - Bengt Fadeel
- Division of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
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31
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Graf C, Nordmeyer D, Sengstock C, Ahlberg S, Diendorf J, Raabe J, Epple M, Köller M, Lademann J, Vogt A, Rancan F, Rühl E. Shape-Dependent Dissolution and Cellular Uptake of Silver Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:1506-1519. [PMID: 29272915 DOI: 10.1021/acs.langmuir.7b03126] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The cellular uptake and dissolution of trigonal silver nanoprisms (edge length 42 ± 15 nm, thickness 8 ± 1 nm) and mostly spherical silver nanoparticles (diameter 70 ± 25 nm) in human mesenchymal stem cells (hMSC's) and human keratinocytes (HaCaT cells) were investigated. Both particles are stabilized by polyvinylpyrrolidone (PVP), with the prisms additionally stabilized by citrate. The nanoprisms dissolved slightly in pure water but strongly in isotonic saline or at pH 4, corresponding to the lowest limit for the pH during cellular uptake. The tips of the prisms became rounded within minutes due to their high surface energy. Afterward, the dissolution process slowed down due to the presence of both PVP stabilizing Ag{100} sites and citrate blocking Ag{111} sites. On the contrary, nanospheres, solely stabilized by PVP, dissolved within 24 h. These results correlate with the finding that particles in both cell types have lost >90% of their volume within 24 h. hMSC's took up significantly more Ag from nanoprisms than from nanospheres, whereas HaCaT cells showed no preference for one particle shape. This can be rationalized by the large cellular interaction area of the plateletlike nanoprisms and the bending stiffness of the cell membranes. hMSC's have a highly flexible cell membrane, resulting in an increased uptake of plateletlike particles. HaCaT cells have a membrane with a 3 orders of magnitude higher Young's modulus than for hMSC. Hence, the energy gain due to the larger interaction area of the nanoprisms is compensated for by the higher energy needed for cell membrane deformation compared to that for spheres, leading to no shape preference.
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Affiliation(s)
- Christina Graf
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
| | - Daniel Nordmeyer
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
| | - Christina Sengstock
- Bergmannsheil University Hospital/Surgical Research, Ruhr-University Bochum , 44789 Bochum, Germany
| | - Sebastian Ahlberg
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Jörg Diendorf
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen , 45117 Essen, Germany
| | - Jörg Raabe
- Swiss Light Source, Paul Scherrer Institut , 5232 Villigen, Switzerland
| | - Matthias Epple
- Inorganic Chemistry and Center for Nanointegration Duisburg-Essen (CeNIDE), University of Duisburg-Essen , 45117 Essen, Germany
| | - Manfred Köller
- Bergmannsheil University Hospital/Surgical Research, Ruhr-University Bochum , 44789 Bochum, Germany
| | - Jürgen Lademann
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Annika Vogt
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Fiorenza Rancan
- Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charité-Universitätsmedizin Berlin , 10117 Berlin, Germany
| | - Eckart Rühl
- Physikalische und Theoretische Chemie, Institut für Chemie und Biochemie, Freie Universität Berlin , 14195 Berlin, Germany
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32
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Jung Y, Metreveli G, Park CB, Baik S, Schaumann GE. Implications of Pony Lake Fulvic Acid for the Aggregation and Dissolution of Oppositely Charged Surface-Coated Silver Nanoparticles and Their Ecotoxicological Effects on Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:436-445. [PMID: 29258302 DOI: 10.1021/acs.est.7b04635] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Citrate (Cit) and polyethylenimine (BPEI)-coated silver nanoparticles (AgNPs) were used to understand how the type of capping agents and surface charge affect their colloidal stability, dissolution, and ecotoxicity in the absence/presence of Pony Lake Fulvic Acid (PLFA). In the presence of PLFA, Cit-AgNPs were stabilized, while BPEI-AgNPs were aggregated. The aggregation of BPEI-AgNPs decreased with the time, and their stabilizing effect increased at high PLFA concentration. The dissolution also differed between both AgNPs and was influenced by the PLFA concentration. Generally, BPEI-AgNPs showed a lower amount of dissolved Ag than Cit-AgNPs. The dissolved Ag concentration decreased for both AgNPs at low PLFA concentration (5 mg/L). In contrast, the extent of nanoparticle dissolution increased at high PLFA concentration (30 mg/L) but only for BPEI-AgNPs. In the absence of PLFA, the ecotoxicity of Cit-AgNPs to Daphnia magna was higher than that of BPEI-AgNPs. However, the ecotoxicity of AgNPs in the presence of PLFA was up to 70% lower than in their absence. We demonstrated that the differences in colloidal stability, dissolution, and ecotoxicity may be attributed to the different capping agents, surface charge, and concentration of natural organic matter (NOM) as well as to the formation of dissolved Ag complexes with NOM.
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Affiliation(s)
- YounJung Jung
- Environmental Safety Group, Korea Institute of Science and Technology (KIST) Europe , Campus E 7.1, Saarbrucken 66123, Germany
- Group of Environmental and Soil Chemistry, Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany
| | - George Metreveli
- Group of Environmental and Soil Chemistry, Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany
| | - Chang-Beom Park
- Environmental Safety Group, Korea Institute of Science and Technology (KIST) Europe , Campus E 7.1, Saarbrucken 66123, Germany
- Gyeongnam Department of Environmental Toxicology and Chemistry, Korea Institute of Toxicology , Gyeonsangnam-do 52834, Republic of Korea
| | - Seungyun Baik
- Environmental Safety Group, Korea Institute of Science and Technology (KIST) Europe , Campus E 7.1, Saarbrucken 66123, Germany
| | - Gabriele E Schaumann
- Group of Environmental and Soil Chemistry, Institute for Environmental Sciences, University of Koblenz-Landau , Fortstrasse 7, 76829 Landau, Germany
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Cambier S, Røgeberg M, Georgantzopoulou A, Serchi T, Karlsson C, Verhaegen S, Iversen TG, Guignard C, Kruszewski M, Hoffmann L, Audinot JN, Ropstad E, Gutleb AC. Fate and effects of silver nanoparticles on early life-stage development of zebrafish (Danio rerio) in comparison to silver nitrate. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:972-982. [PMID: 28838034 DOI: 10.1016/j.scitotenv.2017.08.115] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 08/11/2017] [Accepted: 08/12/2017] [Indexed: 06/07/2023]
Abstract
The use of silver nanomaterials in everyday products, such as cosmetics, textiles, certain types of packaging, etc. is increasing, leading to their release into the environment, including aquatic ecosystems. This last point initiated this investigation on the toxicological effects of Ag nanoparticles (Ag NPs) in the aquatic model organism Danio rerio. For this purpose, zebrafish larvae were exposed to 20nm bare Ag NPs at different concentrations and AgNO3, used as a positive control for Ag+ ions toxicity, at the beginning of their foraging behaviour to determine adverse effects on fitness parameters. We used secondary ion mass spectrometry (SIMS) to determine the localization of Ag and transcriptomics (microarray) to determine the toxicity at the level of gene expression in fish larvae. Exposure to Ag NPs did not result in adverse effects on survival and growth of the fish. However, SIMS analysis showed that Ag NPs mainly concentrate around liver blood vessels and in the interstitial tissue between the intestine and the liver. Gene expression profiles revealed that AgNO3 and Ag NPs impacted common pathways, suggesting similar targets, such as the phototransduction system. However, the Ag NPs showed a broader set of genes impacted following the exposure, including the circadian clock regulation and the photoreception, suggesting specific particle-related effects in addition to those induced by ions.
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Affiliation(s)
- Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | | | - Anastasia Georgantzopoulou
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg; Norwegian Institute for Water Research, Gaustadalléen 21, 0349 Oslo, Norway
| | - Tommaso Serchi
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | | | | | - Tore-Geir Iversen
- Department of Biochemistry, Institute for Cancer Research, The Norwegian Radium Hospital, Oslo University Hospital, Oslo
| | - Cédric Guignard
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Marcin Kruszewski
- Centre for Radiobiology and Biological Dosimetry, Institute of Nuclear Chemistry and Technology, Dorodna 16, 03-195 Warszawa, Poland
| | - Lucien Hoffmann
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Jean-Nicolas Audinot
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg
| | - Erik Ropstad
- Norwegian School of Veterinary Science, N-0033 Oslo, Norway.
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology (LIST), 5 avenue des Hauts-Fourneaux, Esch-sur-Alzette, Luxembourg.
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34
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Chen Z, Sheng X, Wang J, Wen Y. Silver nanoparticles or free silver ions work? An enantioselective phytotoxicity study with a chiral tool. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 610-611:77-83. [PMID: 28803204 DOI: 10.1016/j.scitotenv.2017.08.037] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/01/2017] [Accepted: 08/03/2017] [Indexed: 06/07/2023]
Abstract
Nowadays, silver nanoparticles (AgNP) have been widely used and there are raising concerns about their potential adverse effects on organism. As for the exact toxicity mechanism of AgNP, opinions still vary and whether the released silver ions (Ag+) or AgNP themselves are responsible for the toxicity remains debatable. In the present study, we have designed two exposure systems where Ag+ and AgNP coexisted but differed in quantification by using photo-reduced method with cysteine enantiomers, and their toxicities to freshwater microalgae Scenedesmus obliquus and model plant Arabidopsis thaliana were determined. In the results, Ag+ was in suit photo-reduced by cysteine enantiomers, and the UV-Vis and circular dichroism spectrum evidence confirmed the quantification difference between Ag-l-cysteine (Ag-l-Cys) and Ag-d-cysteine (Ag-d-Cys), where there was more AgNP and less Ag+ in Ag-l-Cys. Furthermore, the toxicity assay data revealed that Ag-d-Cys was more toxic to S. obliquus but A. thaliana was more susceptible to Ag-l-Cys. The metal element distribution in Arabidopsis leaves was also influenced in an enantioselective manner, which was related to the oxidative stress. Considering the quantification difference between Ag-l-Cys and Ag-d-Cys, it can be concluded that AgNP exhibited their toxicity to S. obliquus by the action of Ag+, but toxicity brought to A. thaliana was attributed to AgNP themselves rather than Ag+. The results of the present study help to better clarify the role of Ag+ in AgNP toxicity and offer a chiral tool and a new sight to investigate the toxicity mechanism of AgNP.
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Affiliation(s)
- Zunwei Chen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaolin Sheng
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Jia Wang
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuezhong Wen
- MOE Key Laboratory of Environmental Remediation & Ecosystem Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Zhou XX, Lai YJ, Liu R, Li SS, Xu JW, Liu JF. Polyvinylidene Fluoride Micropore Membranes as Solid-Phase Extraction Disk for Preconcentration of Nanoparticulate Silver in Environmental Waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:13816-13824. [PMID: 29121473 DOI: 10.1021/acs.est.7b04055] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Efficient separation and preconcentration of trace nanoparticulate silver (NAg) from large-volume environmental waters is a prerequisite for reliable analysis and therefore understanding the environmental processes of silver nanoparticles (AgNPs). Herein, we report the novel use of polyvinylidene fluoride (PVDF) filter membrane for disk-based solid phase extraction (SPE) of NAg in 1 L of water samples with the disk-based SPE system, which consists of a syringe pump and a syringe filter holder to embed the filter membrane. While the PVDF membrane can selectively adsorb NAg in the presence of Ag+, aqueous solution of 2% (m/v) FL-70 is found to efficiently elute NAg. Analysis of NAg is performed following optimization of filter membrane and elution conditions with an enrichment factor of 1000. Additionally, transmission electron microscopy (TEM), UV-vis spectroscopy, and size-exclusion chromatography coupled with ICP-MS (SEC-ICP-MS) analysis showed that the extraction gives rise to no change in NAg size or shape, making this method attractive for practical applications. Furthermore, feasibility of the protocol is verified by applying it to extract NAg in four real waters with recoveries of 62.2-80.2% at 0.056-0.58 μg/L spiked levels. This work will facilitate robust studies of trace NAg transformation and their hazard assessments in the environment.
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Affiliation(s)
- Xiao-Xia Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
| | - Yu-Jian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
| | - Sha-Sha Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences , Beijing 100049, China
| | - Jing-Wen Xu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
- College of Environment, Liaoning University , Shenyang 110036, China
| | - Jing-Fu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences , Beijing 100049, China
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36
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Conine AL, Rearick DC, Xenopoulos MA, Frost PC. Variable silver nanoparticle toxicity to Daphnia in boreal lakes. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2017; 192:1-6. [PMID: 28898784 DOI: 10.1016/j.aquatox.2017.09.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 08/29/2017] [Accepted: 09/02/2017] [Indexed: 06/07/2023]
Abstract
Variable sensitivity of organisms to silver nanoparticles (AgNPs) caused by changes in physico-chemical variables in aquatic ecosystems is receiving increasing attention. Variables such as dissolved organic carbon, pH, light, the presence of algae and bacteria, dissolved oxygen and different ions have all been studied individually, but it is still unclear how these variables in combination alter AgNP toxicity in natural ecosystems. Here we examined AgNP toxicity on survival of wild-caught Daphnia using AgNP suspensions placed in water from several different lakes at the IISD-Experimental Lakes Area, which span a gradient of water quality parameters. The partitioning of AgNPs between particulate and dissolved organic matter fractions was also assessed due to the potential for algal sequestration and detoxification of AgNPs. We found that toxicity varied between lakes with LC50 values ranging between 34 and 292μg AgL-1. Time of year in terms of days since ice-off and carbon to nitrogen ratios of particulate matter were the major predictors of toxicity between ecosystems. Total dissolved phosphorus, dissolved organic carbon, and particulate carbon to phosphorus ratios also played minor roles in influencing survival of Daphnia between water types. We found variable partitioning of silver into the particulate fraction within lakes and no significant differences between lakes. Silver associated with particulate organic matter increased with increasing concentrations of AgNPs in the ecosystem. Overall, we found strong evidence that AgNP toxicity is highly context dependent in natural lake ecosystems.
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Affiliation(s)
- Andrea L Conine
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, Ontario, K9J 7B8, Canada.
| | - Daniel C Rearick
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, Ontario, K9J 7B8, Canada
| | | | - Paul C Frost
- Department of Biology, Trent University, Peterborough, Ontario, K9J 7B8, Canada
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37
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Li L, Xu Z, Wimmer A, Tian Q, Wang X. New Insights into the Stability of Silver Sulfide Nanoparticles in Surface Water: Dissolution through Hypochlorite Oxidation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:7920-7927. [PMID: 28608678 DOI: 10.1021/acs.est.7b01738] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Silver sulfide nanoparticles (Ag2SNPs) are considered to be stable in the environment due to the extreme low solubility of Ag2S (Ksp: 6.3 × 10-50). Little is known about the stability of Ag2SNPs in surface water disinfected with aqueous chlorine, one of the globally most used disinfectants. Our results suggested that both uncoated and polyvinylpyrrolidone (PVP)-coated Ag2SNPs (100 μg/L) underwent dissolution in surface water disinfected with aqueous chlorine at a dose of 4 mg/L, showing the highest dissolved silver ion concentrations of 22.3 and 10.5 μg/L within 45 min, respectively. The natural organic matter (NOM) and dissolved oxygen (DO) posed effects on the Ag2SNPs dissolution by chlorine; NOM accelerated Ag2SNPs dissolution while DO reduced the rate and extent of Ag2SNPs dissolution. We further demonstrated that Ag2SNPs dissolution was primarily attributed to active oxidative substances including hydroxyl radical and H2O2 originating from the hypochlorite oxidation. Additionally, water containing Ag2SNPs disinfected with hypochlorite showed stronger interference on the zebra fish (Danio rerio) embryo hatching than Ag2SNPs and hypochlorite on their own. This work documented that Ag2SNPs could undergo dissolution in surface water through hypochlorite oxidation, posing potential risks to aquatic organisms, and therefore showed new insights into the stability of Ag2SNPs in natural environment.
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Affiliation(s)
- Lingxiangyu Li
- School of Sciences, Zhejiang Sci-Tech University , Hangzhou 310018, China
| | - Zhenlan Xu
- Institute of Quality and Standard of Agro-Products, Zhejiang Academy of Agricultural Sciences , Hangzhou 310021, China
| | - Andreas Wimmer
- Division of Analytical Chemistry, Department of Chemistry, Technical University of Munich , Garching 85748, Germany
| | - Qinghua Tian
- School of Sciences, Zhejiang Sci-Tech University , Hangzhou 310018, China
| | - Xinping Wang
- School of Sciences, Zhejiang Sci-Tech University , Hangzhou 310018, China
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38
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Yin Y, Hu Z, Du W, Ai F, Ji R, Gardea-Torresdey JL, Guo H. Elevated CO 2 levels increase the toxicity of ZnO nanoparticles to goldfish (Carassius auratus) in a water-sediment ecosystem. JOURNAL OF HAZARDOUS MATERIALS 2017; 327:64-70. [PMID: 28040633 DOI: 10.1016/j.jhazmat.2016.12.044] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 12/21/2016] [Accepted: 12/23/2016] [Indexed: 06/06/2023]
Abstract
Concerns about the environmental safety of metal-based nanoparticles (MNPs) in aquatic ecosystems are increasing. Simultaneously, elevated atmospheric CO2 levels are a serious problem worldwide, making it possible for the combined exposure of MNPs and elevated CO2 to the ecosystem. Here we studied the toxicity of nZnO to goldfish in a water-sediment ecosystem using open-top chambers flushed with ambient (400±10μL/L) or elevated (600±10μL/L) CO2 for 30days. We measured the content of Zn in suspension and fish, and analyzed physiological and biochemical changes in fish tissues. Results showed that elevated CO2 increased the Zn content in suspension by reducing the pH value of water and consequently enhanced the bioavailability and toxicity of nZnO. Elevated CO2 led to higher accumulation of Zn in fish tissues (increased by 43.3%, 86.4% and 22.5% in liver, brain and muscle, respectively) when compared to ambient. Elevated CO2 also intensified the oxidative damage to fish induced by nZnO, resulting in higher ROS intensity, greater contents of MDA and MT and lower GSH content in liver and brain. Our results suggest that more studies in natural ecosystems are needed to better understand the fate and toxicity of nanoparticles in future CO2 levels.
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Affiliation(s)
- Ying Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China
| | - Zhengxue Hu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China
| | - Wenchao Du
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China.
| | - Fuxun Ai
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China
| | - Jorge L Gardea-Torresdey
- Department of Chemistry, The University of Texas at El Paso, El Paso, TX 79968, United States; Environmental Science and Engineering PhD program, The University of Texas at El Paso, El Paso, TX 79968, United States; University of California Center for Environmental Implications of Nanotechnology (UC CEIN), The University of Texas at El Paso, El Paso, TX 79968, United States
| | - Hongyan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210046, China.
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Ghasemi Siani N, Fallah S, Pokhrel LR, Rostamnejadi A. Natural amelioration of Zinc oxide nanoparticle toxicity in fenugreek (Trigonella foenum-gracum) by arbuscular mycorrhizal (Glomus intraradices) secretion of glomalin. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2017; 112:227-238. [PMID: 28107731 DOI: 10.1016/j.plaphy.2017.01.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Revised: 12/17/2016] [Accepted: 01/01/2017] [Indexed: 05/23/2023]
Abstract
Owing to rising production and use of engineered nanoparticles (ENPs) in the myriad of consumer applications, ENPs are being released into the environment where their potential fate and effects have remained unclear. With naturally occurring arbuscular mycorrhizal fungus (AMF; Glomus intraradices) in soils, their influence (positive or negative) on ENPs toxicity in plants is not well documented. Herein, we investigated potential influence of AMF on the growth and development in fenugreek (Trigonella foenum-graecum) under varied Zinc oxide nanoparticles (ZnONPs) treatments (0, 125, 250, 375 and 500 μg g-1). Results showed that in the absence of AMF, increasing ZnONPs concentrations caused significant decline in root nodule number and biomass in fenugreek. In non-AMF plants, shoot length, and biomass of both root and shoot decreased at ≥375 μg g-1 of ZnONPs treatment; while Zn uptake by shoot and root increased as a function of ZnONPs treatments. Interestingly, AMF colonization in roots significantly diminished at 375 μg g-1 ZnONPs treatment compared to controls. More importantly, AMF inoculation ameliorated inhibitory effects of ZnONPs by promoting secretion of glycoprotein called glomalin-a potent metal chelator-within the rhizosphere, which significantly reduced (by almost half) Zn uptake by root and subsequent translocation to the shoot. AMF inoculation (high glomalin secretion)-mediated low Zn uptake might have been stimulatory to promote root and shoot growth in fenugreek. The results highlight significant protective roles of rhizospheric AMF through glomalin secretion thereby ameliorating nanotoxicity in plants, and underscore the need to include soil-microbial interactions when assessing nanophytotoxicology and risks. Furthermore, potential positive implications to other organisms in the food chain can be inferred due to low tropic transfer of ENPs and/or associated toxic dissolved ions in the presence of naturally occurring soil fingi.
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Affiliation(s)
- Narges Ghasemi Siani
- Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
| | - Seyfollah Fallah
- Department of Agronomy, Faculty of Agriculture, Shahrekord University, Shahrekord, Iran
| | - Lok Raj Pokhrel
- Division of Environmental Health, Department of Epidemiology and Biostatistics, College of Public Health, Temple University, 1301 Cecil B. Moore Avenue, Ritter Annex, Philadelphia, PA 19122, USA.
| | - Ali Rostamnejadi
- Electroceram Research Center, Malek Ashtar University of Technology, Iran
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40
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Effect of nanomaterial and media physicochemical properties on Ag NM aggregation kinetics. J Colloid Interface Sci 2017; 487:192-200. [DOI: 10.1016/j.jcis.2016.10.037] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2016] [Revised: 10/01/2016] [Accepted: 10/16/2016] [Indexed: 12/25/2022]
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41
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Conine AL, Frost PC. Variable toxicity of silver nanoparticles to Daphnia magna: effects of algal particles and animal nutrition. ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:118-126. [PMID: 27909840 DOI: 10.1007/s10646-016-1747-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 11/16/2016] [Indexed: 06/06/2023]
Abstract
Aquatic environments vary widely in aspects other than their physicochemical properties that could alter the toxicity of novel contaminants. One factor that could affect chemical toxicity to aquatic consumers is their nutritional environment as it can strongly affect their physiology and life history. Nutrition has the potential to alter an organism's response to the toxin or how the toxin interacts with the consumer through its food. Here we determined how growth and survival responses of Daphnia to an emerging contaminant, silver nanoparticles (AgNPs), are affected by the presence of food and its stoichiometric food quality. We used a series of survival tests, each slightly modified, to determine whether variable toxicity in different nutritional environments resulted from algal sequestration of AgNPs in a nontoxic form or from changes to the nutritional status of the test animals. We found that the presence of algae, of good or poor quality, reduced the toxicity of AgNPs on animal growth and survival. However, the decrease in AgNP toxicity was greater for animals consuming P-rich compared to P-poor food. We found evidence that this effect of food quality was due to greater algal uptake of AgNPs by P-rich than by P-stressed algae. However, we also found animal nutrition, in the absence of algal AgNP binding, could affect toxicity with P-nourished animals surviving slightly better when exposed to AgNPs compared to their P-stressed counterparts. Our results show an important role for algal particles and their P content in determining the toxicity of AgNPs in natural waters primarily due to their binding and uptake abilities and, less so, to their effects on animal nutrition.
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Affiliation(s)
- Andrea L Conine
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, K9J 7B8, Canada.
| | - Paul C Frost
- Department of Biology, Trent University, Peterborough, ON, K9J 7B8, Canada
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42
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Bao S, Wang H, Zhang W, Xie Z, Fang T. An investigation into the effects of silver nanoparticles on natural microbial communities in two freshwater sediments. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 219:696-704. [PMID: 27396616 DOI: 10.1016/j.envpol.2016.06.071] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Revised: 06/05/2016] [Accepted: 06/29/2016] [Indexed: 06/06/2023]
Abstract
The expanding production and usage of commercial silver nanoparticles (AgNPs) will inevitably increase their environmental release, with sediments as a substantial sink. However, little knowledge is available about the potential impacts of AgNPs on freshwater sediment microbial communities, as well as the interactions between microbial communities and biogeochemical factors in AgNPs polluted sediment. To address these issues, two different sediments: a eutrophic freshwater sediment and an oligotrophic freshwater sediment, were exposed to 1 mg/g of either AgNO3, uncoated AgNPs (35-nm and 75-nm), or polyvinylpyrrolidone coated AgNPs (PVP-AgNPs) (30-50 nm) for 45 days. High-throughput sequencing of 16S ribosomal ribonucleic acid (16S rRNA) genes using the Illumina MiSeq platform was conducted to evaluate the effects of Ag addition on bacterial community composition. Moreover, sediment microbial biomass and activity were assessed by counting cultivable bacterial number and determining enzyme activities. During the 45-day exposure, compared with no amendment control, some treatments had resulted in significant changes and alterations of sediment biomass or bacterial enzyme activities shortly. While the microbial components at phylum level were rarely affected by AgNPs addition, and as confirmed by the statistical analysis with two-factor analysis of similarities (ANOSIM), there were no significant differences on bacterial community structure across the amended treatments. Redundancy analysis further demonstrated that chemical parameters acid-volatile sulfide (AVS) and simultaneously extracted silver (SE-Ag) in sediment significantly structured the overall bacterial community in sediments spiked with various silver species. In summary, these findings suggested that the ecotoxicity of AgNPs may be attenuated by the transformation under complex environmental conditions and the self-adaption of sediment microbial communities.
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Affiliation(s)
- Shaopan Bao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Han Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China; Graduate University of Chinese Academy of Sciences, Beijing 100049, China
| | - Weicheng Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Zhicai Xie
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Tao Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.
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McLaughlin S, Ahumada M, Franco W, Mah TF, Seymour R, Suuronen EJ, Alarcon EI. Sprayable peptide-modified silver nanoparticles as a barrier against bacterial colonization. NANOSCALE 2016; 8:19200-19203. [PMID: 27834428 DOI: 10.1039/c6nr07976h] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Sprayable formulations of AgNPs were prepared by exchanging citrate capping agents with LL37-SH peptides. The AgNP@LL37 material was then combined with type I collagen to form a stable film once sprayed. The AgNP@LL37 spray prevented Pseudomonas aeruginosa (P. aeruginosa) proliferation and eradicated a P. aeruginosa biofilm, while being non-toxic for human skin fibroblasts embedded within 3D artificial skin constructs. Finally, no silver infiltration was observed after spraying on a full-thickness skin wound in a mouse model.
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Affiliation(s)
- Sarah McLaughlin
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Manuel Ahumada
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Walfre Franco
- Wellman Centre for Photomedicine, Department of Dermatology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Thien-Fah Mah
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Richard Seymour
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Erik J Suuronen
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada.
| | - Emilio I Alarcon
- Division of Cardiac Surgery Research, University of Ottawa Heart Institute, 40 Ruskin Street, Ottawa, Ontario K1Y 4W7, Canada. and Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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Chen D, Li X, Soule T, Yorio F, Orr L. Effects of solution chemistry on antimicrobial activities of silver nanoparticles against Gordonia sp. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 566-567:360-367. [PMID: 27228306 DOI: 10.1016/j.scitotenv.2016.05.037] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/05/2016] [Accepted: 05/06/2016] [Indexed: 06/05/2023]
Abstract
Silver nanoparticles (NPs) are the largest and fastest growing category of nanotechnology-based medicines and consumer products. Silver can have great toxicity to some aquatic organisms and, as a biocidal agent, may also damage or alter the most abundant and vulnerable beneficial microorganisms in the environment, such as Gordonia sp. However, considering the complex chemical background of natural waters, silver NPs can have complicated interactions with background chemicals such as chloride, surfactants, and dissolved natural organic matters (NOM). The results of this study show that the average particle size and dispersivity of silver NPs and the surface characteristics play an important role in the toxicity of silver NPs. Aggregation was enhanced for silver NPs in 10mM NaNO3, but not much in 10mM NaCl due to reactions with chloride. However, the presence of 3mM sodium dodecyl sulfate (SDS) or 8mgC/L Suwannee River (SR) NOM appeared to reduce the aggregation of silver NPs. Regarding the bactericidal effect of silver NPs, solubility analysis suggests silver NPs inactivate Gordonia sp. differently from Ag(+) and/or a slow release of Ag(+) from silver NPs. When the silver NP concentration was raised from 7.3 to 29.2mg/L in DI water, the log inactivation rate of Gordonia sp. increased from 0.16±0.04 to 0.45±0.13. However, with 29.2mg/L silver NPs the log inactivation rate reached 1.40±0.26 in 3mM SDS. The presence of SRNOM mitigated the bactericidal efficacy of silver NPs due to surface coating/adsorption. On the other hand, 10mM NaCl reduced the log inactivation rate to 0.07±0.07 due to the formation of likely less toxic silver chloride species, such as AgCl, AgCl2(-), AgCl3(2-), and AgCl4(3-).
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Affiliation(s)
- Dong Chen
- Department of Civil and Mechanical Engineering, Indiana University-Purdue University, 2101 E Coliseum Blvd, Fort Wayne, IN 46805, USA.
| | - Xuan Li
- ORISE Postdoctoral Participant at the U.S. Environmental Protection Agency, 26 W. Martin Luther King Jr. Drive, Cincinnati, OH 45268, USA
| | - Tanya Soule
- Department of Biology, Indiana University-Purdue University, 2101 E Coliseum Blvd, Fort Wayne, IN 46805, USA
| | - Francis Yorio
- Department of Biology, Indiana University-Purdue University, 2101 E Coliseum Blvd, Fort Wayne, IN 46805, USA
| | - Louisa Orr
- Department of Civil and Mechanical Engineering, Indiana University-Purdue University, 2101 E Coliseum Blvd, Fort Wayne, IN 46805, USA
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45
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Heinlaan M, Muna M, Knöbel M, Kistler D, Odzak N, Kühnel D, Müller J, Gupta GS, Kumar A, Shanker R, Sigg L. Natural water as the test medium for Ag and CuO nanoparticle hazard evaluation: An interlaboratory case study. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 216:689-699. [PMID: 27357482 DOI: 10.1016/j.envpol.2016.06.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2016] [Revised: 06/15/2016] [Accepted: 06/16/2016] [Indexed: 05/14/2023]
Abstract
Engineered nanoparticles (NPs) have realistic potential of reaching natural waterbodies and of exerting toxicity to freshwater organisms. The toxicity may be influenced by the composition of natural waters as crucial NP properties are influenced by water constituents. To tackle this issue, a case study was set up in the framework of EU FP7 NanoValid project, performing an interlaboratory hazard evaluation of NPs in natural freshwater. Ag and CuO NPs were selected as model NPs because of their potentially high toxicity in the freshwater. Daphnia magna (OECD202) and Danio rerio embryo (OECD236) assays were used to evaluate NP toxicity in natural water, sampled from Lake Greifen and Lake Lucerne (Switzerland). Dissolution of the NPs was evaluated by ultrafiltration, ultracentrifugation and metal specific sensor bacteria. Ag NP size was stable in natural water while CuO NPs agglomerated and settled rapidly. Ag NP suspensions contained a large fraction of Ag(+) ions and CuO NP suspensions had low concentration of Cu(2+) ions. Ag NPs were very toxic (48 h EC50 1-5.5 μg Ag/L) to D. magna as well as to D. rerio embryos (96 h EC50 8.8-61 μg Ag/L) in both standard media and natural waters with results in good agreement between laboratories. CuO NP toxicity to D. magna differed significantly between the laboratories with 48 h EC50 0.9-11 mg Cu/L in standard media, 5.7-75 mg Cu/L in Lake Greifen and 5.5-26 mg Cu/L in Lake Lucerne. No toxicity of CuO NP to zebrafish embryos was detected up to 100 mg/L independent of the medium used. The results show that Ag and CuO NP toxicity may be higher in natural water than in the standard media due to differences in composition. NP environmental hazard evaluation can and should be carried out in natural water to obtain more realistic estimates on the toxicity.
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Affiliation(s)
- Margit Heinlaan
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia.
| | - Marge Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Akadeemia tee 23, 12618 Tallinn, Estonia; Department of Materials Science, Tallinn University of Technology, Ehitajate tee 5, 19086 Tallinn, Estonia
| | - Melanie Knöbel
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - David Kistler
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Niksa Odzak
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Dana Kühnel
- Helmholtz Centre for Environmental Research - UFZ, Department of Bioanalytical Ecotoxicology, Permoserstr.15, 04318 Leipzig, Germany
| | - Josefine Müller
- Helmholtz Centre for Environmental Research - UFZ, Department of Bioanalytical Ecotoxicology, Permoserstr.15, 04318 Leipzig, Germany
| | - Govind Sharan Gupta
- Institute of Life Sciences, School of Science and Technology, Ahmedabad University, University Road, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Ashutosh Kumar
- Institute of Life Sciences, School of Science and Technology, Ahmedabad University, University Road, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Rishi Shanker
- Institute of Life Sciences, School of Science and Technology, Ahmedabad University, University Road, Navrangpura, Ahmedabad, 380009, Gujarat, India
| | - Laura Sigg
- Eawag, Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, 8600 Dübendorf, Switzerland.
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46
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Andersen CP, King G, Plocher M, Storm M, Pokhrel LR, Johnson MG, Rygiewicz PT. Germination and early plant development of ten plant species exposed to titanium dioxide and cerium oxide nanoparticles. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:2223-9. [PMID: 26773270 DOI: 10.1002/etc.3374] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 09/17/2015] [Accepted: 01/13/2016] [Indexed: 05/20/2023]
Abstract
Ten agronomic plant species were exposed to different concentrations of nano-titanium dioxide (nTiO2 ) or nano-cerium oxide (nCeO2 ) (0 μg/mL, 250 μg/mL, 500 μg/mL, and 1000 μg/mL) to examine potential effects on germination and early seedling development. The authors modified a standard test protocol developed for soluble chemicals (OPPTS 850.4200) to determine if such an approach might be useful for screening engineered nanomaterials (ENMs) and whether there were differences in response across a range of commercially important plant species to 2 common metal oxide ENMs. Eight of 10 species responded to nTiO2 , and 5 species responded to nCeO2 . Overall, it appeared that early root growth may be a more sensitive indicator of potential effects from ENM exposure than germination. The observed effects did not always relate to the exposure concentration, indicating that mass-based concentration may not fully explain the developmental effects of these 2 ENMs. The results suggest that nTiO2 and nCeO2 have different effects on early plant growth of agronomic species, with unknown effects at later stages of the life cycle. In addition, standard germination tests, which are commonly used for toxicity screening of new materials, may not detect the subtle but potentially more important changes associated with early growth and development in terrestrial plants. Environ Toxicol Chem 2016;35:2223-2229. Published 2016 Wiley Periodicals Inc. on behalf of SETAC. This article is a US Government work and, as such, is in the public domain in the United States of America.
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Affiliation(s)
| | | | | | | | - Lok R Pokhrel
- College of Public Health, Temple University, Philadelphia, Pennsylvania, USA
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Su Y, Chen Y, Zheng X, Wan R, Huang H, Li M, Wu L. Using sludge fermentation liquid to reduce the inhibitory effect of copper oxide nanoparticles on municipal wastewater biological nutrient removal. WATER RESEARCH 2016; 99:216-224. [PMID: 27161888 DOI: 10.1016/j.watres.2016.04.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Revised: 04/19/2016] [Accepted: 04/29/2016] [Indexed: 06/05/2023]
Abstract
The deterioration of biological nutrient removal (BNR) can occur with the release of engineering nanomaterials into wastewater treatment plants (WWTPs). Also, large amounts of waste sludge are generated in WWTPs, which can be reutilized as a useful resource. In this study, the use of sludge fermentation liquid to reduce CuO nanoparticles (NPs) toxicity to municipal wastewater BNR was reported. In the BNR system supplemented with sodium acetate, which was widely used as additional carbon source of municipal wastewater in literatures, the appearance of 2.5 mg/L CuO NPs for 5.5 h decreased the total nitrogen (TN) removal efficiency from 81.4% to 59.0%, but the TN removal was recovered to 78.7% after sodium acetate was replaced by sludge fermentation liquid. It was found that CuO NPs induced excessive generation of reactive nitrogen species (RNS), which led to the disorder of redox status, low levels of energy and reduction equivalents generations, and deterioration of denitrification. Further investigation revealed that cysteine in fermentation liquid played a vital biological role in reducing nanotoxicity by facilitating the synthesis of glutathione, which reduced excessive RNS generation, increased key proteins expression, guaranteed the metabolisms of intracellular energy and substrate smoothly, and finally recovered the BNR performance.
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Affiliation(s)
- Yinglong Su
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Xiong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China.
| | - Rui Wan
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Haining Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Mu Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
| | - Lijuan Wu
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai, 200092, China
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48
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Afshinnia K, Gibson I, Merrifield R, Baalousha M. The concentration-dependent aggregation of Ag NPs induced by cystine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 557-558:395-403. [PMID: 27016687 DOI: 10.1016/j.scitotenv.2016.02.212] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 02/25/2016] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
Cystine is widely used in cell culture media. Cysteine, the reduced form of cystine, is widely used to scavenge dissolved Ag in eco-toxicological studies to differentiate dissolved vs. nanoparticle uptake and toxicity. However, little is known about the impact of cysteine and cystine on the aggregation behavior of Ag NPs, in particular as a function of Ag NP concentration. Herein, we investigate how cystine (0-300μM) affects the stability of citrate-, polyvinylpyrrolidone-, and polyethylene glycol-coated silver nanoparticles (cit-Ag NPs, PVP-Ag NPs and PEG-Ag NPs, respectively) with and without Suwannee River fulvic acid (SRFA) as a function of Ag NPs concentration using UV-vis spectroscopy at environmentally and ecotoxicologically relevant Ag NP concentrations (ca. 125-1000μgL(-1)). The results demonstrate, for the first time, the concentration-dependent aggregation of cit-Ag NPs in the presence of cystine with a shift in the critical coagulation concentration (CCC) to lower cystine concentrations at lower cit-Ag NP concentrations. At the highest cit-Ag NP concentration (1000μgL(-1)), reaction limited aggregation was only observed and no CCC was measured. SRFA slowed the aggregation of cit-Ag NPs by cystine and aggregation occurred in reaction limited aggregation (RLA) regime only. No CCC value was measured in the presence of SRFA. Cystine replaces citrate, PVP and PEG coatings, resulting in aggregation of both electrostatically and sterically stabilized Ag NPs. These findings are important in understanding the factors determining the behavior of Ag NPs in cell culture media. Also due to the similarity between cystine and cysteine, these results are important in understanding the uptake and toxicity of Ag NPs vs. Ag ions, and suggest that the reduction of the toxicity of Ag NPs in the presence of cysteine could be due to a combined effect of scavenging Ag(+) ions and Ag NP aggregation in the presence of cysteine.
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Affiliation(s)
- K Afshinnia
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - I Gibson
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - R Merrifield
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States
| | - M Baalousha
- Center for Environmental Nanoscience and Risk, Department of Environmental Health Sciences, Arnold School of Public Health, University South Carolina, Columbia, SC 29208, United States.
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49
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Cerrillo C, Barandika G, Igartua A, Areitioaurtena O, Uranga N, Mendoza G. Colloidal stability and ecotoxicity of multiwalled carbon nanotubes: Influence of select organic matters. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2016; 35:74-83. [PMID: 26189503 DOI: 10.1002/etc.3172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Revised: 05/18/2015] [Accepted: 07/16/2015] [Indexed: 06/04/2023]
Abstract
In the last few years, the release of multiwalled carbon nanotubes (MWCNTs) into the environment has raised serious concerns regarding their fate and potential impacts. Aquatic organisms constitute an important pathway for their entrance and transfer throughout the food web, and the current demand for standardization of methodologies to analyze the interactions of MWCNTs with them requires aquatic media that represent natural systems. However, the inherent hydrophobicity of MWCNTs and the substances present in natural waters may greatly affect their stability and bioavailability. The present study analyzes the influence of the most referenced synthetic and natural organic matters (Sigma-Aldrich humic acid and Suwannee River natural organic matter) in the agglomeration kinetics and ecotoxicity of MWCNTs, with the aim of determining their suitability to fulfill the current standardization requirements. Natural organic matter provides increased colloidal stability to the MWCNTs' dispersions, which results in higher adverse effects on the key invertebrate organism Daphnia magna. Furthermore, the results obtained with this type of organic matter allow for observation of the important role of the outer diameter and content impurities of MWCNTs in their stability and ecotoxicity on daphnids. Sigma-Aldrich humic acid appeared to alter the response of the organisms to carbon nanotubes compared with that observed in the presence of natural organic matter.
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Affiliation(s)
- Cristina Cerrillo
- Department of Inorganic Chemistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
- Tribology Unit, IK4-TEKNIKER, Eibar, Gipuzkoa, Spain
| | - Gotzone Barandika
- Department of Inorganic Chemistry, University of the Basque Country (UPV/EHU), Leioa, Bizkaia, Spain
| | - Amaya Igartua
- Tribology Unit, IK4-TEKNIKER, Eibar, Gipuzkoa, Spain
| | | | - Nerea Uranga
- Surface Chemistry Unit, IK4-TEKNIKER, Eibar, Gipuzkoa, Spain
| | - Gemma Mendoza
- Tribology Unit, IK4-TEKNIKER, Eibar, Gipuzkoa, Spain
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50
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Zhang C, Hu Z, Deng B. Silver nanoparticles in aquatic environments: Physiochemical behavior and antimicrobial mechanisms. WATER RESEARCH 2016; 88:403-427. [PMID: 26519626 DOI: 10.1016/j.watres.2015.10.025] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 10/05/2015] [Accepted: 10/17/2015] [Indexed: 05/22/2023]
Abstract
Nanosilver (silver nanoparticles or AgNPs) has unique physiochemical properties and strong antimicrobial activities. This paper provides a comprehensive review of the physicochemical behavior (e.g., dissolution and aggregation) and antimicrobial mechanisms of nanosilver in aquatic environments. The inconsistency in calculating the Gibbs free energy of formation of nanosilver [ΔGf(AgNPs)] in aquatic environments highlights the research needed to carefully determine the thermodynamic stability of nanosilver. The dissolutive release of silver ion (Ag(+)) in the literature is often described using a pseudo-first-order kinetics, but the fit is generally poor. This paper proposes a two-stage model that could better predict silver ion release kinetics. The theoretical analysis suggests that nanosilver dissolution could occur under anoxic conditions and that nanosilver may be sulfidized to form silver sulfide (Ag2S) under strict anaerobic conditions, but more investigation with carefully-designed experiments is required to confirm the analysis. Although silver ion release is likely the main antimicrobial mechanism of nanosilver, the contributions of (ion-free) AgNPs and reactive oxygen species (ROS) generation to the overall toxicity of nanosilver must not be neglected. Several research directions are proposed to better understand the dissolution kinetics of nanosilver and its antimicrobial mechanisms under various aquatic environmental conditions.
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Affiliation(s)
- Chiqian Zhang
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA.
| | - Zhiqiang Hu
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
| | - Baolin Deng
- Department of Civil and Environmental Engineering, University of Missouri, Columbia, MO 65211, USA
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