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Yan X, Song M, Zhou M, Ding C, Wang Z, Wang Y, Yang W, Yang Z, Liao Q, Shi Y. Response of Cupriavidus basilensis B-8 to CuO nanoparticles enhances Cr(VI) reduction. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 688:46-55. [PMID: 31229827 DOI: 10.1016/j.scitotenv.2019.05.438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/28/2019] [Accepted: 05/29/2019] [Indexed: 06/09/2023]
Abstract
CuO nanoparticles (NPs) released into aqueous environments induce metal toxicity, which generally exerts negative effects on various organisms and leads to great challenge for wastewater biotreatment. In this study, a promotion effect of CuO NPs on biological process was first found. Cr(VI) reduction by Cupriavidus basilensis B-8 (hereafter B-8) was enhanced in the presence of CuO NPs. The efficiency of Cr(VI) bioreduction was much higher with B-8 and CuO NPs (approximately 100%) than with B-8 (approximately 37.6%) and CuO NPs (39.9-44.7%) alone, indicating a stimulatory effect of CuO NPs on Cr(VI) reduction by B-8. Our material analyses revealed different response mechanisms of B-8 to Cr(VI), with and without CuO NPs. The addition of CuO NPs influenced the interaction of Cr(VI) with the N-, P-, S-, and C-related functional groups of B-8. Transcriptomic analysis indicated that multiple mechanisms, including Cr(VI) uptake and reactive oxygen species detoxification, were induced by Cr(VI). Many genes involved in various metabolic processes were significantly upregulated by the addition of CuO NPs. To a certain extent, the pressure of DNA repairment by B-8 induced by Cr(VI) was also alleviated by the presence of CuO NPs. They contributed to facilitate B-8 growth and enhance Cr(VI) reduction, even with 50 mg/L Cr(VI). This study not only elaborated the mechanisms of bacterial Cr(VI) reduction when enhanced by CuO NPs, but also provided a novel perspective for wastewater biotreatment.
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Affiliation(s)
- Xu Yan
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Mengmeng Song
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Mo Zhou
- Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Chunlian Ding
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Zhongren Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China
| | - Yunyan Wang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Weichun Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Zhihui Yang
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Qi Liao
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China
| | - Yan Shi
- School of Metallurgy and Environment, Central South University, Changsha 410083, China; Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Changsha 410083, China.
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Wang Y, Liu W, Li R, Zhang Y. New insight into chemical changes between dissolved organic matter and environmental nano-CuO pollutants binding experiment using multi-spectroscopic techniques. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.111278] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Du J, Fu L, Li H, Xu S, Zhou Q, Tang J. The potential hazards and ecotoxicity of CuO nanoparticles: an overview. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1670211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Jia Du
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Li Fu
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Huanxuna Li
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Shaodan Xu
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Qingwei Zhou
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
| | - Junhong Tang
- Institute of Environmental Science and Engineering, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, China
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Zhu Y, Liu X, Hu Y, Wang R, Chen M, Wu J, Wang Y, Kang S, Sun Y, Zhu M. Behavior, remediation effect and toxicity of nanomaterials in water environments. ENVIRONMENTAL RESEARCH 2019; 174:54-60. [PMID: 31029942 DOI: 10.1016/j.envres.2019.04.014] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/14/2019] [Accepted: 04/15/2019] [Indexed: 05/11/2023]
Abstract
In recent years, nanotechnology has been developing continuously. Due to their advantageous huge specific surface areas, microinterface characteristics, remediation ability and potential environmental risks, nanomaterials have become a hot topic in the field of environmental research. With the mass production and use of nanomaterials, they will inevitably be discharged or leaked into the water environment. In this paper, we will describe some typical nanomaterials, such as nanoscale zero valent iron (nZVI), graphene nanomaterials (GNMs), TiO2 nanoparticles (NPs), ZnO NPs, Fe3O4 NPs, carbon nanotubes (CNTs), Ag NPs, and other nanomaterials in water environments, focusing on the positive and negative effects of some nanomaterials in water environments. The remediation function and the impact of nanomaterials in water environments, including behavior of nanomaterials and their toxicity to aquatic organisms will be discussed. This will be of great significance for our subsequent research on nanomaterials.
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Affiliation(s)
- Yi Zhu
- School of Environmental Science & Engineering, Hubei Polytechnic University, Huangshi 435003, PR China
| | - Xianli Liu
- School of Environmental Science & Engineering, Hubei Polytechnic University, Huangshi 435003, PR China
| | - Yali Hu
- School of Environmental Science & Engineering, Hubei Polytechnic University, Huangshi 435003, PR China
| | - Rui Wang
- School of Environmental Science & Engineering, Hubei Polytechnic University, Huangshi 435003, PR China
| | - Ming Chen
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China.
| | - Jianhua Wu
- School of Resources and Environmental Engineering, Wuhan University of Science and Technology, Wuhan, 430080, PR China
| | - Yanyan Wang
- School of Land Resources and Environment, Jiangxi Agricultural University, Nanchang, 330045, PR China
| | - Shuang Kang
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Yan Sun
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
| | - Mengxi Zhu
- College of Environmental Science and Engineering, Hunan University and Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha, 410082, PR China
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55
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Yang L, Wang WX. Comparative contributions of copper nanoparticles and ions to copper bioaccumulation and toxicity in barnacle larvae. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 249:116-124. [PMID: 30884390 DOI: 10.1016/j.envpol.2019.02.103] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 01/29/2019] [Accepted: 02/28/2019] [Indexed: 06/09/2023]
Abstract
Cu nanoparticles (CuNPs) have been widely used in numerous products, and may become a potential threat to marine organisms, but their behavior in the marine environments and potential toxicity to marine organisms remain little known. In the present study, we investigated the behavior of CuNPs in seawater, as well as the toxicity and bioaccumulation of CuNPs and copper sulfate (CuSO4) in barnacle larvae (Balanus amphitrite), a dominant fouling invertebrate in marine environment. CuNPs tended to aggregate in natural seawater and released Cu ion rapidly into seawater. The aggregation and release were especially higher at a lower concentration of CuNPs, e.g., 94-96% of CuNPs were released as Cu ions at 20 μg/L after 24 h. The larger size of CuNPs (40 nm) tended to display a higher solubility than the 20 nm CuNPs did. Humic acids enhanced the aggregation and inhibited the dissolution of CuNPs, and had a protective effect on the survival of nauplii II at higher Cu concentrations (100-200 μg/L). Comparison of the lethal concentrations showed that CuNPs were generally less toxic to the two stages of barnacle larvae (nauplii II and VI) than the Cu ions. The calculated 48-h LC50 values for nauplii II were 189.5 μg/L, 123.2 μg/L, and 89.8 μg/L for 20 nm CuNPs, 40 nm CuNPs, and CuSO4, respectively. However, the lethal concentrations of Cu bioaccumulation in the barnacle larvae were comparable between CuNPs and Cu ions when expressed by the actual tissue Cu bioaccumulation. Barnacle larval settlement decreased with an increase of Cu concentrations of both CuNPs and CuSO4, and was significantly inhibited at 100 μg/L CuSO4 and 150 μg/L CuNPs. Our results indicated that the toxicity of CuNPs could not be solely explained by the released Cu ions, and both CuNPs and the released Cu ion contributed to their toxicity and bioaccumulation in barnacle larvae.
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Affiliation(s)
- Li Yang
- Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresources and Environmental Protection, Yancheng Teachers University, Yancheng, Jiangsu, 224051, China; Department of Ocean Science, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong
| | - Wen-Xiong Wang
- Department of Ocean Science, Hong Kong University of Science and Technology, Clearwater Bay, Kowloon, Hong Kong; HKUST Shenzhen Research Institute, Shenzhen, 518057, China.
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Tavakoli Z, Rasekh B, Yazdian F, Maghsoudi A, Soleimani M, Mohammadnejad J. One-step separation of the recombinant protein by using the amine-functionalized magnetic mesoporous silica nanoparticles; an efficient and facile approach. Int J Biol Macromol 2019; 135:600-608. [PMID: 31121232 DOI: 10.1016/j.ijbiomac.2019.05.114] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Revised: 05/16/2019] [Accepted: 05/19/2019] [Indexed: 12/14/2022]
Abstract
The separation process is the main stage of recombinant production. With the advancement of nanotechnology and the development of magnetic nanoparticles, these structures are increasingly used in different applications. In the present study, we produced the recombinant human growth hormone from Pichia pastoris and for protein separation provided the surfaces similar to chromatographic columns on the surface of magnetic nanoparticles. For this purpose, using a co-precipitation method, the core of Fe3O4 was prepared and coated by silica. To increase the protein availability, silica mesoporous formation and its amine functionalization were performed. The specific surface area and the pore size were determined 78.3189 m2/g and 7.44 nm. After the magnetic separation, the sample loading in SDS gel shows a reduction in protein band and the protein absorption at a wavelength of 280 nm. Finally, we evaluate the ability of amine functionalized nanoparticles for protein separation that demonstrate the adsorption capacity significantly increased compare with silica-coated nanoparticles. The amine functionalized nanoparticles provide the maximum adsorption capacity of 235.21 μg/mg and after the elution, protein concentration determined 476 mg/L. This work indicates the functionalized magnetic mesoporous silica nanoparticles can be used as the best candidate for the separation of different biological macromolecules.
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Affiliation(s)
- Zahra Tavakoli
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
| | - Behnam Rasekh
- Microbiology and Biotechnology Research Group, Research Institute of Petroleum Industry, Tehran, Iran
| | - Fatemeh Yazdian
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.
| | | | - Mehdi Soleimani
- Department of Biotechnology, Faculty of Chemical Engineering, Tarbiat Modares University, Tehran, Iran
| | - Javad Mohammadnejad
- Department of Life Science Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran
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57
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Yuan Y, Guo P, Peng X. Effect of fullerol nanoparticles on the transport and release of copper ions in saturated porous media. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:15255-15261. [PMID: 30929172 DOI: 10.1007/s11356-019-04944-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Accepted: 03/20/2019] [Indexed: 06/09/2023]
Abstract
While the application and discharge of carbon nanomaterials (CNMs) increased rapidly, the research on the environmental safety of CNMs is also increasing. The high dispersity and mobility of modified CNMs in environmental media may have impacts on the environmental behavior of heavy metals. This work mainly studied the effect of fullerol nanoparticles (C60(OH)n) on Cu2+ transport, sorption, and release in water-saturated porous media. The results showed that due to the strong adsorption capacity of C60(OH)n for Cu2+, the transport of Cu2+ could be facilitated. However, with the pre-existence of C60(OH)n in porous media, the transport of Cu2+ was also slightly enhanced. In addition, when loaded into the pre-contaminated porous medium, the C60(OH)n also enhanced the release of retained Cu2+, which implies a high environmental risk of C60(OH)n.
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Affiliation(s)
- Yue Yuan
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
- College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Panpan Guo
- College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China
- Beijing Key Laboratory of Industrial Wastewater Treatment and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China
| | - Xianjia Peng
- Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
- College of Resource and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China.
- Beijing Key Laboratory of Industrial Wastewater Treatment and Resource Recovery, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China.
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58
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Safaei M, Taran M, Imani MM. Preparation, structural characterization, thermal properties and antifungal activity of alginate-CuO bionanocomposite. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 101:323-329. [PMID: 31029325 DOI: 10.1016/j.msec.2019.03.108] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2018] [Revised: 02/12/2019] [Accepted: 03/28/2019] [Indexed: 12/23/2022]
Abstract
In this study, the antifungal activity rate of alginate-CuO bionanocomposite was assessed against Aspergillus niger using colony forming units (CFU) and disc diffusion methods. Employing the Taguchi method, nine experiments were designed for the synthesis of alginate-CuO nanocomposite with the highest antifungal activity. The nanocomposite synthesized under the conditions of experiment 5 (4 mg/mL CuO nanoparticles and 1 mg/mL alginate biopolymer with stirring time of 90 min) showed the greatest inhibition rate on fungal growth (83.17%). In the optimum conditions for the synthesis of alginate-CuO nanocomposite with the highest antifungal activity the second level of CuO NPs (14.14%), alginate biopolymer (8.16%) and stirring time (5.63%) showed the best improvement performance on inhibiting the fungal growth. The results of ultraviolet-visible spectroscopy (UV-vis), transmission electron microscopy (TEM) and X-ray powder diffraction (XRD) confirmed the formation of alginate-CuO nanocomposite. Thermogravimetric analysis (TGA) and differential thermal analysis (DTA) indicated that the thermal stability of alginate biopolymer and CuO nanoparticles were improved by the formation of the nanocomposite. Due to the favorable properties of alginate-CuO nanocomposite, its antifungal feature can be used in various biomedical fields.
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Affiliation(s)
- Mohsen Safaei
- Oral and Dental Sciences Research Laboratory, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran.
| | - Mojtaba Taran
- Department of Nanobiotechnology, Faculty of Science, Razi University, Kermanshah, Iran
| | - Mohammad Moslem Imani
- Department of Orthodontics, School of Dentistry, Kermanshah University of Medical Sciences, Kermanshah, Iran
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59
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Zhang R, Zhang X, Gao S, Liu R. Assessing the in vitro and in vivo toxicity of ultrafine carbon black to mouse liver. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:1334-1341. [PMID: 30577125 DOI: 10.1016/j.scitotenv.2018.11.295] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 11/16/2018] [Accepted: 11/19/2018] [Indexed: 06/09/2023]
Abstract
The increasing presence of nanomaterials in commercial products makes large quantities of nanoparticles reach the environment intentionally or accidentally. Their ability to be cleared from lung to stomach and then translocate into blood circulation suggests they may cause effects on the organs and cells of the organism. In this study, we characterized the dispersity of UFCB (ultrafine carbon black, FW200) in the complete medium and investigated the toxicity of FW200 to mouse hepatocytes and the liver both in vitro and in vivo. FW200 dispersed homogeneously in the complete medium with an average size at around 100 nm. In vitro, FW200 induced apparent cytotoxicity in the hepatocytes with the level of oxidative stress, apoptosis and the viability of hepatocytes changed by approximately 30%. The intracellular catalase (CAT) activity was stimulated by FW200 to a higher level than the control group. In vivo, the 7-week mice were exposed to FW200 (10 mg/kg body weight) by oral administration for six days. The liver was collected and used for histopathological analysis. In our findings, the 13 nm carbon black nanoparticle was proved to induce acute inflammation and apoptosis in the liver. The particles were also proved to have a damage to central veins and architecture of the hepatocytes. These findings suggest that the carbon black nanoparticle could cause a negative effect at both the cellular and organism level and unearthed the potential effects of carbon black nanoparticles on animals and human.
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Affiliation(s)
- Rui Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Xun Zhang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Sichen Gao
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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60
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Kim HM, Lee DK, Long NP, Kwon SW, Park JH. Uptake of nanopolystyrene particles induces distinct metabolic profiles and toxic effects in Caenorhabditis elegans. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 246:578-586. [PMID: 30597390 DOI: 10.1016/j.envpol.2018.12.043] [Citation(s) in RCA: 122] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 12/12/2018] [Accepted: 12/14/2018] [Indexed: 05/06/2023]
Abstract
Nanoplastics are widely used in modern life, for example, in cosmetics and daily use products, and are attracting concern due to their potential toxic effects on environments. In this study, the uptake of nanopolystyrene particles by Caenorhabditis elegans (C. elegans) and their toxic effects were evaluated. Nanopolystyrene particles with sizes of 50 and 200 nm were prepared, and the L4 stage of C. elegans was exposed to these particles for 24 h. Their uptake was monitored by confocal microscopy, and various phenotypic alterations of the exposed nematode such as locomotion, reproduction and oxidative stress were measured. In addition, a metabolomics study was performed to determine the significantly affected metabolites in the exposed C. elegans group. Exposure to nanopolystyrene particles caused the perturbation of metabolites related to energy metabolism, such as TCA cycle intermediates, glucose and lactic acid. Nanopolystyrene also resulted in toxic effect including induction of oxidative stress and reduction of locomotion and reproduction. Collectively, these findings provide new insights into the toxic effects of nanopolystyrene particles.
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Affiliation(s)
- Hyung Min Kim
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Dong-Kyu Lee
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Nguyen Phuoc Long
- College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Sung Won Kwon
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Jeong Hill Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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61
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Sakho EHM, Jose J, Thomas S, Kalarikkal N, Oluwafemi OS. Antimicrobial properties of MFe2O4 (M = Mn, Mg)/reduced graphene oxide composites synthesized via solvothermal method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 95:43-48. [DOI: 10.1016/j.msec.2018.10.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 10/05/2018] [Accepted: 10/19/2018] [Indexed: 12/23/2022]
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Samei M, Sarrafzadeh MH, Faramarzi MA. The impact of morphology and size of zinc oxide nanoparticles on its toxicity to the freshwater microalga, Raphidocelis subcapitata. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:2409-2420. [PMID: 30467754 DOI: 10.1007/s11356-018-3787-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/16/2018] [Indexed: 06/09/2023]
Abstract
Microalgae are key test organisms to assess the effects of chemicals on aquatic ecosystems. Zinc oxide nanoparticles (ZnO NPs) as a widely used metal oxide is considered a potential threat to these primary producers at the base of the food chain. This study investigates the toxicity of ZnO NPs, bulk ZnO, and Zn2+ to the representative of freshwater microalgae, Raphidocelis subcapitata. To examine the effect of shape and size of nanoparticles, two types of spherical ZnO NPs with different sizes (20 and 40 nm) and two types of rod-shaped ZnO NPs with different lengths (100 and 500 nm) were synthesized. Microalgal cells were exposed to eight concentrations of each ZnO NP type from 0.01 to 0.7 mg/L for 96 h. The results showed that 0.7 mg/L of ZnO NP could completely inhibit algal growth. Size did not interfere with toxicity in spherical ZnO NPs, but the toxicity decreased by increasing the size of rod-shaped ZnO NPs. Spherical ZnO NPs acted more destructive to microalgal cells than nanorod shape. The addition of 0.7 mg/L of ZnO nanorods to samples caused 30% cell death, while 50% cell death was observed by adding the same concentration of nanospherical ZnO. Nano ZnO revealed to be more toxic than bulk ZnO and Zn2+. The Zn2+ released from dissolution of ZnO NPs was one of the sources of toxicity, but the ZnO nanostructures were also an important factor in the toxicity.
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Affiliation(s)
- Mahya Samei
- UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran
| | - Mohammad-Hossein Sarrafzadeh
- UNESCO Chair on Water Reuse, School of Chemical Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran.
| | - Mohammad Ali Faramarzi
- Department of Pharmaceutical Biotechnology, Faculty of Pharmacy and Biotechnology Research Center, Tehran University of Medical Sciences, P.O. Box 14155-6451, Tehran, 1417614411, Iran.
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63
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Hou J, Wang L, Wang C, Zhang S, Liu H, Li S, Wang X. Toxicity and mechanisms of action of titanium dioxide nanoparticles in living organisms. J Environ Sci (China) 2019; 75:40-53. [PMID: 30473306 DOI: 10.1016/j.jes.2018.06.010] [Citation(s) in RCA: 139] [Impact Index Per Article: 27.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 06/13/2018] [Accepted: 06/14/2018] [Indexed: 05/26/2023]
Abstract
Titanium dioxide nanoparticles (TiO2 NPs) are one of the most widely used nanomaterials in the consumer products, agriculture, and energy sectors. Their large demand and widespread applications will inevitably cause damage to organisms and ecosystems. A better understanding of TiO2 NP toxicity in living organisms may promote risk assessment and safe use practices of these nanomaterials. This review summarizes the toxic effects of TiO2 NPs on multiple taxa of microorganisms, algae, plants, invertebrates, and vertebrates. The mechanism of TiO2 NP toxicity to organisms can be outlined in three aspects: The Reactive Oxygen Species (ROS) produced by TiO2 NPs following the induction of electron-hole pairs; cell wall damage and lipid peroxidation of the cell membrane caused by NP-cell attachment by electrostatic force owing to the large surface area of TiO2 NPs; and TiO2 NP attachment to intracellular organelles and biological macromolecules following damage to the cell membranes.
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Affiliation(s)
- Jing Hou
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Luyao Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Chunjie Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Songlin Zhang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Haiqiang Liu
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Shiguo Li
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
| | - Xiangke Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
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Zhang J, Wang B, Wang H, He H, Wu Q, Qin X, Yang X, Chen L, Xu G, Yuan Z, Yi Q, Zou Z, Yu C. Disruption of the superoxide anions-mitophagy regulation axis mediates copper oxide nanoparticles-induced vascular endothelial cell death. Free Radic Biol Med 2018; 129:268-278. [PMID: 30248444 DOI: 10.1016/j.freeradbiomed.2018.09.032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 09/20/2018] [Accepted: 09/20/2018] [Indexed: 12/18/2022]
Abstract
Copper oxide nanoparticles (CuONPs) have been widely used in the industrial and pharmaceutical fields; however, their toxicity profile is deeply concerning. Currently, nanomaterials-induced toxicity in the cardiovascular system is receiving increased attention. Our previous toxicological study found that lysosomal deposition of CuONPs triggered vascular endothelial cell death, indicating that the involvement of autophagic dysfunction was crucial for CuONPs-induced toxicity in human umbilical vein endothelial cells (HUVECs). In the current study, we investigated the detailed mechanism underlying the autophagic dysfunction induced by CuONPs. We demonstrated that CuONPs exposure caused accumulation of superoxide anions, which likely resulted from mitochondrial dysfunctions. MnTBAP, a superoxide anions scavenger, alleviated CuONPs-induced HUVECs death, indicating that excessive superoxide anions were directly related to the CuONPs cytotoxicity in HUVECs. Interestingly, we found that mitophagy (a protective mechanism for clearance of damaged mitochondria and excessive superoxide anions) was initiated but failed to be cleared in CuONPs-treated cells, resulting in the accumulation of damaged mitochondria. Inhibition of mitophagy through Atg5 knockout or blocking of mitochondria fission with Mdivi-1 significantly aggravated CuONPs-induced superoxide anions accumulation and cell death, suggesting that mitophagy is a protective mechanism against CuONPs cytotoxicity in HUVECs. In summary, we demonstrate that superoxide anions (originating from damaged mitochondria) are involved in CuONPs-associated toxicity and that impaired mitophagic flux aggravates the accumulation of excessive superoxide anions, which leads to HUVECs death. Our findings indicate that there are crucial roles for superoxide anions and mitophagy in CuONPs-induced toxicity in vascular endothelial cells.
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Affiliation(s)
- Jun Zhang
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Bin Wang
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Hong Wang
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Hui He
- College of Pharmacy, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Qiong Wu
- College of Pharmacy, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Xia Qin
- College of Pharmacy, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Xi Yang
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Linmu Chen
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Ge Xu
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Zhiyi Yuan
- College of Pharmacy, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Qiying Yi
- Laboratory Animal Center, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China
| | - Zhen Zou
- Institute of Life Sciences, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China.
| | - Chao Yu
- College of Pharmacy, Chongqing Medical University, No.1 Yixueyuan Road, Yuzhong District, Chongqing, China.
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Mansano AS, Souza JP, Cancino-Bernardi J, Venturini FP, Marangoni VS, Zucolotto V. Toxicity of copper oxide nanoparticles to Neotropical species Ceriodaphnia silvestrii and Hyphessobrycon eques. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 243:723-733. [PMID: 30228063 DOI: 10.1016/j.envpol.2018.09.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 08/12/2018] [Accepted: 09/03/2018] [Indexed: 06/08/2023]
Abstract
The increase of production and consumption of copper oxide nanostructures in several areas contributes to their release into aquatic ecosystems. Toxic effects of copper oxide nanoparticles (CuO NPs), in particular, on tropical aquatic organisms are still unknown, representing a risk for biota. In this study, the effects of rod-shaped CuO NPs on the Neotropical species Ceriodaphnia silvestrii and Hyphessobrycon eques were investigated. We also compared the toxicity of CuO NPs and CuCl2 on these species to investigate the contribution of particles and cupper ions to the CuO NPs toxicity. Considering the low copper ions release from CuO NPs (<1%), our results revealed that the toxicity of CuO NPs to C. silvestrii and H. eques was mainly induced by the NPs. The 48 h EC50 for C. silvestrii was 12.6 ± 0.7 μg Cu L-1 and for H. eques the 96 h LC50 was 211.4 ± 57.5 μg Cu L-1 of CuO NPs. There was significant decrease in reproduction, feeding inhibition and increase in reactive oxidative species (ROS) generation in C. silvestrii exposed to CuO NPs. In fish H. eques, sublethal exposure to CuO NPs caused an increase in ROS generation in gill cells and an increase in cells number that were in early apoptotic and necrotic stages. Our results showed that CuO NPs caused toxic effects to C. silvestrii and H. eques and ROS play an important role in the toxicity pathway observed. Data also indicated that C. silvestrii was among the most sensitive species for CuO NPs. Based on predicted environmental concentration in water bodies, CuO NPs pose potential ecological risks for C. silvestrii and H. eques and other tropical freshwater organisms.
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Affiliation(s)
- Adrislaine S Mansano
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil.
| | - Jaqueline P Souza
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil
| | - Juliana Cancino-Bernardi
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil
| | - Francine P Venturini
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil
| | - Valéria S Marangoni
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil
| | - Valtencir Zucolotto
- Nanomedicine and Nanotoxicology Group, Physics Institute of São Carlos (IFSC), University of São Paulo (USP), Brazil
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66
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Li S, Chen W, Zhan A, Liang J. Identification and characterization of microRNAs involved in scale biomineralization in the naked carp Gymnocypris przewalskii. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS 2018; 28:196-203. [PMID: 30317123 DOI: 10.1016/j.cbd.2018.09.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Revised: 09/26/2018] [Accepted: 09/27/2018] [Indexed: 11/25/2022]
Abstract
The mineralized scale derived from skin plays a protective role for the fish body and also possesses important application values in the biomaterial field. However, little is known about fish scale biomineralization and related molecular regulatory mechanisms. Here, we used a comparative microRNA sequencing approach to identify and characterize differentially expressed microRNAs (DEMs) involved in scale biomineralization in the naked carp Gymnocypris przewalskii. A total of 18, 43, and 66 DEMs were obtained from skin tissues covered with initial, developing, and mature scales (IS, DS, and MS) compared with scale-uncovered skin. The target genes of these DEMs were significantly enriched in a sole biomineralization-related sphingolipid signaling pathway. Seven DEMs (dre-miR-124-3p, dre-miR-133a-2-5p, dre-miR-184, dre-miR-206-3p, novel_33, novel_56 and novel_75) were common in IS, DS, and MS. Dre-miR-124-3p, dre-miR-206-3p, and novel_33 were predicted to be able to target biomineralization-related genes. Stem-loop real-time quantitative PCR further confirmed that the common DEMs had higher expression levels in scale-covered skin tissues than that in the gill, intestine, and brain, except for dre-miR-133a-2-5p. Our results suggest that these identified microRNAs may play a role in scale biomineralization in G. przewalskii, and the obtained microRNAs are expected to be candidates in understanding the molecular mechanism of scale biomineralization in fish species.
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Affiliation(s)
- Shiguo Li
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China
| | - Weiwei Chen
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Aibin Zhan
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing 100049, China.
| | - Jian Liang
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China.
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Maria VL, Licha D, Scott-Fordsmand JJ, Huber CG, Amorim MJ. The Proteome ofEnchytraeus crypticus-Exposure to CuO Nanomaterial and CuCl2-in Pursue of a Mechanistic Interpretation. Proteomics 2018; 18:e1800091. [DOI: 10.1002/pmic.201800091] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 07/27/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Vera L. Maria
- Department of Biology & CESAM; University of Aveiro; Campus Universitário de Santiago; Aveiro Portugal
| | - David Licha
- Department of Biosciences; Bioanalytical Research Labs; University of Salzburg; Salzburg Austria
| | | | - Christian G. Huber
- Department of Biosciences; Bioanalytical Research Labs; University of Salzburg; Salzburg Austria
| | - Mónica J.B. Amorim
- Department of Biology & CESAM; University of Aveiro; Campus Universitário de Santiago; Aveiro Portugal
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Luo Y, Gao B, Yue Q, Li R. Application of enteromorpha polysaccharides as coagulant aid in the simultaneous removal of CuO nanoparticles and Cu 2+: Effect of humic acid concentration. CHEMOSPHERE 2018; 204:492-500. [PMID: 29679870 DOI: 10.1016/j.chemosphere.2018.03.168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/22/2018] [Accepted: 03/24/2018] [Indexed: 05/10/2023]
Abstract
Humic acid (HA) influences the aggregation and stability of nanoparticles (NPs), which determine the removal performance of NPs in coagulation. Consequently, in this study, the impact of HA concentration on the simultaneous removal of CuO NPs, Cu2+, and natural organic matter (NOM) was investigated. Enteromorpha polysaccharides (Ep), as the novel recycling coagulant aid, were integrated with polyaluminum chloride (PAC) to treat composite contaminants in this coagulation process. Removal performance, floc properties, zeta potential, scanning electron microscope (SEM) images, and Fourier Transform Infrared Spectra (FT-IR) were measured and analyzed. Results showed that PAC with Ep (PAC-Ep) was more beneficial for improving removal performances than PAC alone. Further, the coagulation performance became better with the increase in HA concentration. When the HA concentration was 10 mg/L (used PAC-Ep), the removal efficiencies of CuO NPs and Cu2+ were both more than 80%; and in particular, the highest removal efficiency of turbidity was 98%. However, excessive HA (more than 10 mg/L) reduced the removal efficiency of Cu by more than 31%. Smaller and denser flocs with better recoverability were formed as the HA concentration increased. Furthermore, because of affluent functional groups, HA was easily adsorbed on the surface of NPs and combined with dissociative Cu2+, thereby forming a composite contaminant. During the coagulation process, the colloidal system was destabilized preferentially by the charge neutralization between composite contaminants and PAC. Furthermore, a chelated reticular structure was formed by the conjunction of carboxyl and hydroxyl groups (from Ep) and Al (III) species (from PAC). Flocs were further enlarged and precipitated by bridging and sweeping of this structure.
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Affiliation(s)
- Yuanxia Luo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda south Road, 250100 Jinan, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda south Road, 250100 Jinan, PR China.
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda south Road, 250100 Jinan, PR China
| | - Ruihua Li
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, No. 27 Shanda south Road, 250100 Jinan, PR China
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69
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Giannetto A, Cappello T, Oliva S, Parrino V, De Marco G, Fasulo S, Mauceri A, Maisano M. Copper oxide nanoparticles induce the transcriptional modulation of oxidative stress-related genes in Arbacia lixula embryos. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2018; 201:187-197. [PMID: 29933146 DOI: 10.1016/j.aquatox.2018.06.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 05/25/2018] [Accepted: 06/12/2018] [Indexed: 06/08/2023]
Abstract
Copper oxide nanoparticles (CuO NPs) are widely used in various industrial applications, i.e. semiconductor devices, batteries, solar energy converter, gas sensor, microelectronics, heat transfer fluids, and have been recently recognized as emerging pollutants of increasing concern for human and marine environmental health. Therefore, the toxicity of CuO NPs needs to be thoroughly understood. In this study, we evaluated the potential role of oxidative stress in CuO NP toxicity by exploring the molecular response of Arbacia lixula embryos to three CuO NP concentrations (0.7, 10, 20 ppb) by investigating the transcriptional patterns of oxidative stress-related genes (catalase and superoxide dismutase) and metallothionein, here cloned and characterized for the first time. Time- and concentration-dependent changes in gene expression were detected in A. lixula embryos exposed to CuO NPs, up to pluteus stage (72 h post-fertilization, hpf), indicating that oxidative stress is one of the toxicity mechanisms for CuO NPs. These findings provide new insights into the comprehension of the molecular mechanisms underlying copper nanoparticle toxicity in A. lixula sea urchin and give new tools for monitoring of aquatic areas, thus corroborating the suitability of this embryotoxicity assay for future evaluation of impacted sites.
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Affiliation(s)
- Alessia Giannetto
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Tiziana Cappello
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Sabrina Oliva
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Vincenzo Parrino
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Giuseppe De Marco
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Salvatore Fasulo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Angela Mauceri
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy
| | - Maria Maisano
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale F. Stagno d'Alcontres n. 31, 98166 Messina, Italy.
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70
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Maria VL, Licha D, Ranninger C, Scott-Fordsmand JJ, Huber CG, Amorim MJB. The Enchytraeus crypticus stress metabolome – CuO NM case study. Nanotoxicology 2018; 12:766-780. [DOI: 10.1080/17435390.2018.1481237] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Vera L. Maria
- Department of Biology, CESAM, University of Aveiro, Aveiro, Portugal
| | - David Licha
- Biosciences, Bioanalytical Research Labs, University of Salzburg, Salzburg, Austria
| | - Christina Ranninger
- Biosciences, Bioanalytical Research Labs, University of Salzburg, Salzburg, Austria
| | | | - Christian G. Huber
- Biosciences, Bioanalytical Research Labs, University of Salzburg, Salzburg, Austria
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71
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Ge Y, Shen C, Wang Y, Sun YQ, Schimel JP, Gardea-Torresdey JL, Holden PA. Carbonaceous Nanomaterials Have Higher Effects on Soybean Rhizosphere Prokaryotic Communities During the Reproductive Growth Phase than During Vegetative Growth. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:6636-6646. [PMID: 29719150 DOI: 10.1021/acs.est.8b00937] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Carbonaceous nanomaterials (CNMs) can affect agricultural soil prokaryotic communities, but how the effects vary with the crop growth stage is unknown. To investigate this, soybean plants were cultivated in soils amended with 0, 0.1, 100, or 1000 mg kg-1 of carbon black, multiwalled carbon nanotubes (MWCNTs), or graphene. Soil prokaryotic communities were analyzed by Illumina sequencing at day 0 and at the soybean vegetative and reproductive stages. The sequencing data were functionally annotated using the functional annotation of prokaryotic taxa (FAPROTAX) database. The prokaryotic communities were unaffected at day 0 and were altered at the plant vegetative stage only by 0.1 mg kg-1 MWCNTs. However, at the reproductive stage, when pods were filling, most treatments (except 1000 mg kg-1 MWCNTs) altered the prokaryotic community composition, including functional groups associated with C, N, and S cycling. The lower doses of CNMs, which were previously shown to be less agglomerated and thus more bioavailable in soil relative to the higher doses, were more effective toward both overall communities and individual functional groups. Taken together, prokaryotic communities in the soybean rhizosphere can be significantly phylogenetically and functionally altered in response to bioavailable CNMs, especially when soybean plants are actively directing resources to seed production.
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Affiliation(s)
- Yuan Ge
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
- Bren School of Environmental Science and Management , University of California , Santa Barbara , California 93106 , United States
- Earth Research Institute , University of California , Santa Barbara , California 93106 , United States
- University of California Center for the Environmental Implications of Nanotechnology (UC CEIN) , University of California , Santa Barbara , California 93106 , United States
| | - Congcong Shen
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
| | - Ying Wang
- Bren School of Environmental Science and Management , University of California , Santa Barbara , California 93106 , United States
- Earth Research Institute , University of California , Santa Barbara , California 93106 , United States
- University of California Center for the Environmental Implications of Nanotechnology (UC CEIN) , University of California , Santa Barbara , California 93106 , United States
| | - Yao-Qin Sun
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences , Chinese Academy of Sciences , Beijing 100085 , China
| | - Joshua P Schimel
- Earth Research Institute , University of California , Santa Barbara , California 93106 , United States
- University of California Center for the Environmental Implications of Nanotechnology (UC CEIN) , University of California , Santa Barbara , California 93106 , United States
- Department of Ecology, Evolution and Marine Biology , University of California , Santa Barbara , California 93106 , United States
| | - Jorge L Gardea-Torresdey
- University of California Center for the Environmental Implications of Nanotechnology (UC CEIN) , University of California , Santa Barbara , California 93106 , United States
- Department of Chemistry , University of Texas at El Paso , El Paso , Texas 79968 , United States
| | - Patricia A Holden
- Bren School of Environmental Science and Management , University of California , Santa Barbara , California 93106 , United States
- Earth Research Institute , University of California , Santa Barbara , California 93106 , United States
- University of California Center for the Environmental Implications of Nanotechnology (UC CEIN) , University of California , Santa Barbara , California 93106 , United States
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72
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Denluck L, Wu F, Crandon LE, Harper BJ, Harper SL. Reactive oxygen species generation is likely a driver of copper based nanomaterial toxicity. ENVIRONMENTAL SCIENCE. NANO 2018; 5:1473-1481. [PMID: 30455956 PMCID: PMC6239169 DOI: 10.1039/c8en00055g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Determining the specific nanomaterial features that elicit adverse biological responses is important to inform risk assessments, develop targeted applications, and rationally design future nanomaterials. Embryonic zebrafish are often employed to study nanomaterial-biological interactions, but few studies address the role of the chorion in nanomaterial exposure and toxicity. Here, we used chorion-intact (CI) or dechorionated (DC) embryonic zebrafish to investigate the influence of the chorion on copper-based nanoparticle toxicity. We found that despite higher dissolution and uptake, CuO NPs were less toxic than Cu NPs regardless of chorion status and did not cause 100 % mortality at even the highest exposure concentration. The presence of the chorion inhibited Cu toxicity: DC exposures to Cu NPs had an LC50 of 2.5 ± 0.3 mg/L compared to a CI LC50 of 13.7 ± 0.8 mg/L. This highlights the importance of considering zebrafish chorion status during nanotoxicological investigations, as embryo sensitivity increased by one order of magnitude or more when chorions were removed. Agglomerate size, zeta potential, and dissolved Cu did not sufficiently explain the differences in toxicity between Cu NPs and CuO NPs; however, reactive oxygen species (ROS) generation did. Cu NPs generated ROS in a concentration-dependent manner, while CuO did not and generated less than Cu NPs. We believe that the differences between the toxicities of Cu NPs and CuO NPs are due in part to their ability to generate ROS which could and should be a hazard consideration for risk assessments.
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Affiliation(s)
- Lindsay Denluck
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis OR, USA
| | - Fan Wu
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis OR, USA
| | - Lauren E. Crandon
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis OR, USA
| | - Bryan J. Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis OR, USA
| | - Stacey L. Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis OR, USA
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis OR, USA
- Oregon Nanoscience and Michrotechnologies Institute, Eugene OR, USA
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73
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Chen Y, Gao Q, Chen W, Wu F, Yang Y, Werner D, Tao S, Wang X. A mechanistic study of stable dispersion of titanium oxide nanoparticles by humic acid. WATER RESEARCH 2018; 135:85-94. [PMID: 29454925 DOI: 10.1016/j.watres.2018.02.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 12/18/2017] [Accepted: 02/07/2018] [Indexed: 06/08/2023]
Abstract
Stable dispersion of nanoparticles with environmentally-friendly materials is important for their various applications including environmental remediation. In this study, we systematically examined the mechanisms of stable dispersion of two types of TiO2 nanoparticles (TNPs) with anatase and rutile crystalline structures by naturally occurring dissolved organic matter (humic acid) at different pHs, including at, below and above the Point of Zero Charge (PZC). The results showed that stable dispersion of TNPs by humic acid (HA) at all pHs tested can only be achieved with the assistance of ultra-sonication. The dispersion of TNPs by HA differed at the three pHs tested. Generally, HA greatly decreased the hydrodynamic diameters of TNPs at a very low concentration. The dispersion of TNPs became relatively stable when the HA concentration exceeded 5 mg/L, indicating that this HA concentration is required for stable dispersion of TNPs. The mechanisms involved in dispersion of TNPs by HA included electrostatic repulsion, steric hindrance and hydrophobic interaction. Electrostatic repulsion was identified to be the dominant mechanism. The dispersion of TNPs was enhanced when HA was added before ultra-sonication to avoid the partly irreversible re-aggregation of TNPs after sonication. The crystalline phases and concentrations of TNPs were also found to influence their stable dispersion. The findings from this work enhance understanding of the combined effects of HA, pH, ultra-sonication and crystalline structures of TNPs on their stable dispersion. The mechanisms identified can improve applications of TNPs in environmental water pollution control.
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Affiliation(s)
- Yin Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Qian Gao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Weixiao Chen
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Fan Wu
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Yu Yang
- Department of Civil and Environmental Engineering, University of Nevada, Reno, NV 89557, USA
| | - David Werner
- School of Engineering, Newcastle University, Newcastle upon Tyne, UK
| | - Shu Tao
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - Xilong Wang
- Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
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Xu C, Yang Y, Liu L, Li J, Liu X, Zhang X, Liu Y, Zhang C, Liu X. Microcystin-LR nanobody screening from an alpaca phage display nanobody library and its expression and application. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 151:220-227. [PMID: 29353171 DOI: 10.1016/j.ecoenv.2018.01.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2017] [Revised: 12/28/2017] [Accepted: 01/03/2018] [Indexed: 06/07/2023]
Abstract
Microcystin-LR (MC-LR) is a type of biotoxin that pollutes the ecological environment and food. The study aimed to obtain new nanobodies from phage nanobody library for determination of MC-LR. The toxin was conjugated to keyhole limpet haemocyanin (KLH) and bovine serum albumin (BSA), respectively, then the conjugates were used as coated antigens for enrichment (coated MC-LR-KLH) and screening (coated MC-LR-BSA) of MC-LR phage nanobodies from an alpaca phage display nanobody library. The antigen-specific phage particles were enriched effectively with four rounds of biopanning. At the last round of enrichment, total 20 positive monoclonal phage nanobodies were obtained from the library, which were analyzed after monoclonal phage enzyme linked immunosorbent assay (ELISA), colony PCR and DNA sequencing. The most three positive nanobody genes, ANAb12, ANAb9 and ANAb7 were cloned into pET26b vector, then the nanobodies were expressed in Escherichia coli BL21 respectively. After being purified, the molecular weight (M.W.) of all nanobodies were approximate 15kDa with sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). The purified nanobodies, ANAb12, ANAb9 and ANAb7 were used to establish the indirect competitive ELISA (IC-ELISA) for MC-LR, and their half-maximum inhibition concentrations (IC50) were 0.87, 1.17 and 1.47μg/L, their detection limits (IC10) were 0.06, 0.08 and 0.12μg/L, respectively. All of them showed strong cross-reactivity (CRs) of 82.7-116.9% for MC-RR, MC-YR and MC-WR, and weak CRs of less than 4.56% for MC-LW, less than 0.1% for MC-LY and MC-LF. It was found that all the IC-ELISAs for MC-LR spiked in tap water samples detection were with good accuracy, stability and repeatability, their recoveries were 84.0-106.5%, coefficient of variations (CVs) were 3.4-10.6%. These results showed that IC-ELISA based on the nanobodies from the alpaca phage display antibody library were promising for high sensitive determination of multiple MCs.
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Affiliation(s)
- Chongxin Xu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China; Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Ying Yang
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Liwen Liu
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China
| | - Jianhong Li
- College of Life Sciences, Nanjing Normal University, Nanjing 210023, China.
| | - Xiaoqin Liu
- Huaihua Vocational and Technical College, Huaihua 418007, China
| | - Xiao Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuan Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Cunzheng Zhang
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xianjin Liu
- Key Laboratory of Food Quality and Safety of Jiangsu/Province-State Key Laboratory Breeding Base, Institute of Food Safety and Nutrition, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
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75
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Zong P, Cao D, Cheng Y, Wang S, Hayat T, Alharbi NS, Guo Z, Zhao Y, He C. Enhanced performance for Eu(iii) ion remediation using magnetic multiwalled carbon nanotubes functionalized with carboxymethyl cellulose nanoparticles synthesized by plasma technology. Inorg Chem Front 2018. [DOI: 10.1039/c8qi00901e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Synthesis of sodium carboxymethyl cellulose/iron oxides/MWCNTs composites by a plasma technique and their application to the decontamination of europium ions from aqueous solutions under controlled laboratory conditions.
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Affiliation(s)
- Pengfei Zong
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- P. R. China
| | - Duanlin Cao
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- P. R. China
| | - Yuan Cheng
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- P. R. China
| | - Shoufang Wang
- School of Chemical Engineering and Technology
- North University of China
- Taiyuan
- P. R. China
| | - Tasawar Hayat
- Department of Mathematics
- Quaid-I-Azam University
- Islamabad
- Pakistan
- NAAM Research Group
| | - Njud S. Alharbi
- Biotechnology Research Group
- Department of Biological Sciences
- Faculty of Science
- King Abdulaziz University
- Jeddah
| | - Zhiqiang Guo
- School of Resources and Environmental Engineering
- Hefei University of Technology
- Hefei
- P. R. China
| | - Yaolin Zhao
- School of Nuclear Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
| | - Chaohui He
- School of Nuclear Science and Technology
- Xi'an Jiaotong University
- Xi'an
- P. R. China
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76
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Abstract
In the recent times, nanomaterials are used in many sectors of science, medicine and industry, without revealing its toxic effects. Thus, it is in urgent need for exploring the toxicity along with the application of such useful nanomaterials. Nanomaterials are categorized with a particle size of 1-100 nm. They have gained increasing attention because of their novel properties, including a large specific surface area and high reaction activity. The various fundamental and practical applications of nanomaterials include drug delivery, cell imaging, and cancer therapy. Nanosized semiconductors have their versatile applications in different areas such as catalysts, sensors, photoelectronic devices, highly functional and effective devices etc. Metal oxides contribute in many areas of chemistry, physics and materials science. Mechanism of toxicity of metal oxide nanoparticles can occur by different methods like oxidative stress, co-ordination effects, non-homeostasis effects, genotoxicity and others. Factors that affect the metal oxide nanoparticles were size, dissolution and exposure routes. This chapter will explain elaborately the toxicity of metal oxide nano structures in living beings and their effect in ecosystem.
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77
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Hou J, Zhou Y, Wang C, Li S, Wang X. Toxic Effects and Molecular Mechanism of Different Types of Silver Nanoparticles to the Aquatic Crustacean Daphnia magna. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:12868-12878. [PMID: 28968066 DOI: 10.1021/acs.est.7b03918] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Silver nanoparticles (AgNPs) have been assessed to have a high exposure risk for humans and aquatic organisms. Toxicity varies considerably between different types of AgNPs. This study aimed to investigate the toxic effects of AgNPs with different particle sizes (40 and 110 nm) and different surface coatings (sodium citrate and polyvinylpyrrolidone, PVP) on Daphnia magna and their mechanisms of action. The results revealed that the citrate-coated AgNPs were more toxic than PVP-coated AgNPs and that the 40 nm AgNPs were more toxic than the 110 nm AgNPs. Transcriptome analysis further revealed that the toxic effects of AgNPs on D. magna were related to the mechanisms of ion binding and several metabolic pathways, such as the "RNA polymerase" pathway and the "protein digestion and absorption" pathway. Moreover, the principal component analysis (PAC) results found that surface coating was the major factor that determines the toxicities compared to particle size. These results could help us better understand the possible mechanism of AgNP toxicity in aquatic invertebrates at the transcriptome level and establish an important foundation for revealing the broad impacts of nanoparticles on aquatic environments.
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Affiliation(s)
- Jing Hou
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, China
| | - Yue Zhou
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, China
| | - Chunjie Wang
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, China
| | - Shiguo Li
- Research Center for Eco-Environmental Sciences, Chinese Academy of Science , Beijing 100085, China
| | - Xiangke Wang
- College of Environmental Science and Engineering, North China Electric Power University , Beijing 102206, China
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78
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Ulloa-Ogaz AL, Piñón-Castillo HA, Muñoz-Castellanos LN, Athie-García MS, Ballinas-Casarrubias MDL, Murillo-Ramirez JG, Flores-Ongay LÁ, Duran R, Orrantia-Borunda E. Oxidative damage to Pseudomonas aeruginosa ATCC 27833 and Staphylococcus aureus ATCC 24213 induced by CuO-NPs. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:22048-22060. [PMID: 28791555 DOI: 10.1007/s11356-017-9718-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 07/04/2017] [Indexed: 06/07/2023]
Abstract
The cytotoxicity of nanoparticles (NPs) and their properties are important issues in nanotechnology research. Particularly, NPs affect the metabolism of microorganisms due to NP interactions with some biomolecules. In order to assess the mechanisms underlying NPs toxicity, we studied the damage caused by copper oxide nanoparticles (CuO-NPs) on Staphylococcus aureus ATCC 24213 and Pseudomonas aeruginosa ATCC 27833. Spherical CuO-NPs characterized by their diameter (13 ± 3 nm) were synthesized with a maximum of 254 nm. These NPs reduced cell viability, with a minimum inhibitory concentration (MIC) of 500 and 700 ppm for Staphylococcus aureus and Pseudomonas aeruginosa, respectively. Surfactant was added to reduce the NP agglomeration, but it did not present any effect. The mechanism of CuO-NPs as antimicrobial agent was assessed by analyzing solubilized Cu2+, quantifying DNA release in the culture media, and measuring intracellular reactive oxygen species (ROS). CuO-NPs induced severe damage on cells as revealed by confocal optical microscopy and scanning electron microscopy (SEM). Our results indicated that CuO-NPs interacted with bacteria, triggering an intracellular signaling network which produced oxidative stress, leading to ROS generation. Finally, we concluded that CuO-NPs exhibited higher antibacterial activity on Gram-negative bacteria than on Gram-positive ones.
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Affiliation(s)
- Ana Laura Ulloa-Ogaz
- Universidad Autónoma de Chihuahua Circuito No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, 31240, Chihuahua, Chihuahua, México.
| | - Hilda Amelia Piñón-Castillo
- Universidad Autónoma de Chihuahua Circuito No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, 31240, Chihuahua, Chihuahua, México.
| | - Laila Nayzzel Muñoz-Castellanos
- Universidad Autónoma de Chihuahua Circuito No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, 31240, Chihuahua, Chihuahua, México
| | - Martha Samira Athie-García
- Universidad Autónoma de Chihuahua Circuito No. 1, Nuevo Campus Universitario, Apdo. Postal 1552, 31240, Chihuahua, Chihuahua, México
| | | | - José Guadalupe Murillo-Ramirez
- Centro de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31109, Chihuahua, Chihuahua, México
| | | | - Robert Duran
- Equipe Environment et Microbiologie, MELODY Group, UMR IPREM5254, IBEAS, Université de Pau et des Pays de l'Adour, Pau, France
| | - Erasmo Orrantia-Borunda
- Centro de Investigación en Materiales Avanzados, S. C. Miguel de Cervantes 120, Complejo Industrial Chihuahua, 31109, Chihuahua, Chihuahua, México
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79
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Du Y, Wang J, Zou Y, Yao W, Hou J, Xia L, Peng A, Alsaedi A, Hayat T, Wang X. Synthesis of molybdenum disulfide/reduced graphene oxide composites for effective removal of Pb(II) from aqueous solutions. Sci Bull (Beijing) 2017; 62:913-922. [PMID: 36659461 DOI: 10.1016/j.scib.2017.05.025] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 01/21/2023]
Abstract
In this work, a facile method was adopted to synthesize molybdenum disulfide/reduced graphene oxide (MoS2/rGO) composites through an l-cysteine-assisted hydrothermal technique. The as-prepared MoS2/rGO composites were firstly applied as adsorbents for efficient elimination of Pb(II) ions. Batch adsorption experiments showed that the adsorption of Pb(II) on MoS2/rGO followed pseudo-second-order kinetic model well. The adsorption of Pb(II) was intensely pH-dependent, ionic strength-dependent at pH < 9.0 and ionic strength-independent at pH > 9.0. The presence of humic acid (HA) enhanced Pb(II) adsorption obviously. The MoS2/rGO composites exhibited excellent adsorption capacity of 384.16mgg-1 at pH 5.0 and T=298.15K, which was superior to MoS2 (279.93mgg-1) and many other adsorbents. The thermodynamic parameters suggested that the adsorption process of Pb(II) on MoS2/rGO composites was spontaneous (ΔGθ<0) and endothermic (ΔHθ>0). The interaction of Pb(II) and MoS2/rGO was mainly dominated by electrostatic attraction and surface complexation between Pb(II) and oxygen-containing functional groups of MoS2/rGO. This work highlighted the application of MoS2/rGO as novel and promising materials in the efficient elimination of Pb(II) from contaminated water and industrial effluents in environmental pollution management.
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Affiliation(s)
- Yi Du
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Jian Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Yidong Zou
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Wen Yao
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China
| | - Jing Hou
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China.
| | - Liangshu Xia
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China
| | - Anguo Peng
- School of Nuclear Science and Technology, University of South China, Hengyang 421001, China.
| | - Ahmed Alsaedi
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Tasawar Hayat
- NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Xiangke Wang
- College of Environmental Science and Engineering, North China Electric Power University, Beijing 102206, China; School of Nuclear Science and Technology, University of South China, Hengyang 421001, China; NAAM Research Group, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, School for Radiological and Interdisciplinary Sciences, Soochow University, Suzhou 215123, China.
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