51
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Freitas R, Cardoso CED, Costa S, Morais T, Moleiro P, Lima AFD, Soares M, Figueiredo S, Águeda TL, Rocha P, Amador G, Soares AMVM, Pereira E. New insights on the impacts of e-waste towards marine bivalves: The case of the rare earth element Dysprosium. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2020; 260:113859. [PMID: 31991344 DOI: 10.1016/j.envpol.2019.113859] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 11/30/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
With the technological advances and economic development, the multiplicity and wide variety of applications of electrical and electronic equipment have increased, as well as the amount of end-of-life products (waste of electrical and electronic equipment, WEEE). Accompanying their increasing application, there is an increasing risk to aquatic ecosystems and inhabiting organisms. Among the most common elements present in WEEE are rare earth elements (REE) such as Dysprosium (Dy). The present study evaluated the metabolic and oxidative stress responses of mussels Mytilus galloprovincialis exposed to an increasing range of Dy concentrations, after a 28 days experimental period. The results obtained highlighted that Dy was responsible for mussel's metabolic increase associated with glycogen expenditure, activation of antioxidant and biotransformation defences and cellular damage, with a clear loss of redox balance. Such effects may greatly impact mussel's physiological functions, including reproduction capacity and growth, with implications for population conservation. Overall the present study pointed out the need for more research on the toxic impacts resulting from these emerging pollutants, especially towards marine and estuarine invertebrate species.
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Affiliation(s)
- Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Celso E D Cardoso
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Silvana Costa
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Tiago Morais
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Pedro Moleiro
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - André F D Lima
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Márcio Soares
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Samuel Figueiredo
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Tiago L Águeda
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Pedro Rocha
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Gonçalo Amador
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Eduarda Pereira
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
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Freitas R, Costa S, D Cardoso CE, Morais T, Moleiro P, Matias AC, Pereira AF, Machado J, Correia B, Pinheiro D, Rodrigues A, Colónia J, Soares AMVM, Pereira E. Toxicological effects of the rare earth element neodymium in Mytilus galloprovincialis. CHEMOSPHERE 2020; 244:125457. [PMID: 32050323 DOI: 10.1016/j.chemosphere.2019.125457] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/21/2019] [Accepted: 11/22/2019] [Indexed: 06/10/2023]
Abstract
The wide range of applications of rare earth elements (REE) is leading to their occurrence in worldwide aquatic environments. Among the most popular REE is Neodymium (Nd), being widely used in permanent magnets, lasers, and glass additives. Neodymium-iron-boron (NdFeB) magnets is the main application of Nd since they are used in electric motors, hard disk drives, speakers and generators for wind turbines. Recent studies have already evaluated the toxic potential of different REE, but no information is available on the effects of Nd towards marine bivalves. Thus, the present study evaluated the biochemical alterations caused by Nd in the mussel Mytilus galloprovincialis exposed to this element for 28 days. The results obtained clearly demonstrated that Nd was accumulated by mussels, leading to mussel's metabolic capacity increase and GLY expenditure, in an attempt to fuel up defense mechanisms. Antioxidant and biotransformation defenses were insufficient in the elimination of ROS excess, resulting from the presence of Nd and increased electron transport system activity, which caused cellular damages (measured by lipid peroxidation) and loss of redox balance (assessed by the ratio between reduced and oxidized glutathione). The results obtained clearly highlight the potential toxicity of REEs and, in particular of Nd, with impacts at cellular level, which may have consequences in mussel's survival, growth and reproduction, affecting mussel's population.
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Affiliation(s)
- Rosa Freitas
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal.
| | - Silvana Costa
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Celso E D Cardoso
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Tiago Morais
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Pedro Moleiro
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Ana C Matias
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Ana F Pereira
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Joana Machado
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Beatriz Correia
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Diana Pinheiro
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Adriana Rodrigues
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - João Colónia
- Departamento de Química, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Amadeu M V M Soares
- Departamento de Biologia & CESAM, Universidade de Aveiro, 3810-193, Aveiro, Portugal
| | - Eduarda Pereira
- Departamento de Química & LAQV-REQUIMTE, Universidade de Aveiro, 3810-193, Aveiro, Portugal
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Hua Y, Zheng X, Xue L, Han L, He S, Mishra T, Feng Y, Yang L, Xing B. Microbial aging of hydrochar as a way to increase cadmium ion adsorption capacity: Process and mechanism. BIORESOURCE TECHNOLOGY 2020; 300:122708. [PMID: 31926474 DOI: 10.1016/j.biortech.2019.122708] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/24/2019] [Accepted: 12/27/2019] [Indexed: 06/10/2023]
Abstract
Microbially-aged hydrochar were prepared to investigate how aging affected their ability to remove Cd2+ from aqueous solutions. Based on aging time in an anaerobic fermenter, four samples were produced: HC, M20-HC, M40-HC, and M60-HC. Results indicated increases in specific surface area, pH, and negative charge on hydrochar surface with aging process. Also, there were a decrease in O/C and an increase in surface functional groups, such as -COOH. The adsorption experiments confirmed the positive correlation between aging time and adsorption performance. The 60-day-aged M60-HC treatment displayed the maximum adsorption capacity, which was 3.8 times higher than that of HC. The Langmuir and pseudo-second-order kinetic equations fitted well with isothermal and kinetic data, respectively. Thermodynamic study indicated that Cd2+ adsorption is dominated by chemisorption. This study showed that microbial aging process is an effective and promising measure to improve hydrochar adsorption capacity for Cd2+.
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Affiliation(s)
- Yun Hua
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; College of Resources and Environment Science, Nanjing Agricultural University, Nanjing 210095, China
| | - Xuebo Zheng
- Key Laboratory of Tobacco Biology and Processing, Ministry of Agriculture and Rural Affairs, Tobacco Research Institute of Chinese Academy of Agricultural Sciences, Qingdao 266101, China
| | - Lihong Xue
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212001, China
| | - Lanfang Han
- Institute of Environmental and Ecological Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Shiying He
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Tripti Mishra
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yanfang Feng
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China; Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA; School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212001, China.
| | - Linzhang Yang
- Key Laboratory of Agro-Environment in Downstream of Yangtze Plain, Ministry of Agriculture and Rural Affairs, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
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Blinova I, Muna M, Heinlaan M, Lukjanova A, Kahru A. Potential Hazard of Lanthanides and Lanthanide-Based Nanoparticles to Aquatic Ecosystems: Data Gaps, Challenges and Future Research Needs Derived from Bibliometric Analysis. NANOMATERIALS 2020; 10:nano10020328. [PMID: 32075069 PMCID: PMC7075196 DOI: 10.3390/nano10020328] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/09/2020] [Accepted: 02/10/2020] [Indexed: 12/16/2022]
Abstract
Lanthanides (Ln), applied mostly in the form of nanoparticles (NPs), are critical to emerging high-tech and green energy industries due to their distinct physicochemical properties. The resulting anthropogenic input of Ln and Ln-based NPs into aquatic environment might create a problem of emerging contaminants. Thus, information on the biological effects of Ln and Ln-based NPs is urgently needed for relevant environmental risk assessment. In this mini-review, we made a bibliometric survey on existing scientific literature with the main aim of identifying the most important data gaps on Ln and Ln-based nanoparticles' toxicity to aquatic biota. We report that the most studied Ln for ecotoxicity are Ce and Ln, whereas practically no information was found for Nd, Tb, Tm, and Yb. We also discuss the challenges of the research on Ln ecotoxicity, such as relevance of nominal versus bioavailable concentrations of Ln, and point out future research needs (long-term toxicity to aquatic biota and toxic effects of Ln to bottom-dwelling species).
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Affiliation(s)
- Irina Blinova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Marge Muna
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Margit Heinlaan
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Aljona Lukjanova
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
| | - Anne Kahru
- Laboratory of Environmental Toxicology, National Institute of Chemical Physics and Biophysics, Tallinn 12618, Estonia; (I.B.); (M.M.); (M.H.); (A.L.)
- Estonian Academy of Sciences, Tallinn 10130, Kohtu 6, Estonia
- Correspondence: ; Tel.: +372-6398373
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Akhtar MJ, Ahamed M, Alhadlaq H, Alrokayan S. Toxicity Mechanism of Gadolinium Oxide Nanoparticles and Gadolinium Ions in Human Breast Cancer Cells. Curr Drug Metab 2019; 20:907-917. [DOI: 10.2174/1389200220666191105113754] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2019] [Revised: 10/03/2019] [Accepted: 10/16/2019] [Indexed: 12/19/2022]
Abstract
Background:
Due to the potential advantages of Gadolinium Nanoparticles (NPs) over gadolinium elements,
gadolinium based NPs are currently being explored in the field of MRI. Either in elemental form or nanoparticulate
form, gadolinium toxicity is believed to occur due to the deposition of gadolinium ion (designated as Gd3+ ion
or simply G ion).
Objective:
There is a serious lack of literature on the mechanisms of toxicity caused by either gadolinium-based NPs
or ions. Breast cancer tumors are often subjected to MRIs, therefore, human breast cancer (MCF-7) cells could serve
as an appropriate in vitro model for the study of Gadolinium Oxide (GO) NP and G ion.
Methods:
Cytotoxicity and oxidative damage was determined by quantifying cell viability, cell membrane damage,
and Reactive Oxygen Species (ROS). Intracellular Glutathione (GSH) was measured along with cellular Total Antioxidant
Capacity (TAC). Autophagy was determined by using Monodansylcadaverine (MDC) and Lysotracker Red
(LTR) dyes in tandem. Mitochondrial Membrane Potential (MMP) was measured by JC-1 fluorescence. Physicochemical
properties of GO NPs were characterized by field emission transmission electron microscopy, X-ray diffraction,
and energy dispersive spectrum.
Results:
A time- and concentration-dependent toxicity and oxidative damage was observed due to GO NPs and G
ions. Bax/Bcl2 ratios, FITC-7AAD double staining, and cell membrane blebbing in phase-contrast images all suggested
different modes of cell death induced by NPs and ions.
Conclusion:
In summary, cell death induced by GO NPs with high aspect ratio favored apoptosis-independent cell
death, whereas G ions favored apoptosis-dependent cell death.
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Affiliation(s)
- Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Maqusood Ahamed
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Hisham Alhadlaq
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh, Saudi Arabia
| | - Salman Alrokayan
- Department of Biochemistry, College of Sciences, King Saud University, Riyadh, Saudi Arabia
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