1
|
Zou W, Zhao C, Zhang X, Jin C, Jiang K, Zhou Q. Mitigation Effects and Associated Mechanisms of Environmentally Relevant Thiols on the Phytotoxicity of Molybdenum Disulfide Nanosheets. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:9556-9568. [PMID: 35576172 DOI: 10.1021/acs.est.1c08534] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Thorough investigations of the environmental fate and risks are necessary for the safe application of engineered nanomaterials. Nevertheless, the current understanding of potential transformations of MoS2 (an intensively studied two-dimensional nanosheet) upon interactions with ubiquitous environmentally relevant thiols (ERTs) in water is limited. This study revealed that two ERTs, l-cysteine and mercaptoacetic acid, could modify MoS2 by covalently grafting thiol groups on S atoms of 1T phases, improving the colloidal persistence and chemical stability of MoS2. Compared with the pristine form, MoS2-thiols with higher dispersity exhibited significantly mitigated envelopment and ultrastructural damage to microalgae. MoS2-triggered growth inhibition, upregulation of reactive oxygen species, photosynthetic injury, and metabolic perturbation in algae were remarkably attenuated by ERTs. The diminished capability for MoS2 to generate reactive intermediates and glutathione oxidation driven by ERTs caused the weakness of oxidative stress and negative effects. Additionally, molecular dynamics simulations demonstrated that ERTs altered the extent of the influence of MoS2 on the secondary structures and functions of adsorbed intracellular proteins, which also contributed to the lower phytotoxicity of MoS2. Our findings provide evidence for the crucial role of specific organic ligands in the risk of MoS2 in aquatic environments.
Collapse
Affiliation(s)
- Wei Zou
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Chenxu Zhao
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Xingli Zhang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Caixia Jin
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Kai Jiang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Qixing Zhou
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| |
Collapse
|
2
|
Microalgal photosynthetic inhibition and mixotrophic growth in Post Hydrothermal Liquefaction Wastewater (PHW). ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
3
|
Zou W, Wan Z, Yu X, Liu Z, Yuan P, Zhang X. Sulfur vacancies affect the environmental fate, corona formation, and microalgae toxicity of molybdenum disulfide nanoflakes. JOURNAL OF HAZARDOUS MATERIALS 2021; 419:126499. [PMID: 34214853 DOI: 10.1016/j.jhazmat.2021.126499] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 06/09/2021] [Accepted: 06/23/2021] [Indexed: 06/13/2023]
Abstract
Sulfur vacancy (SV) defects have been engineered in two-dimensional (2D) transition metal dichalcogenides (TMDs) for high performance applications in various fields involving environmental protection. Understanding the influence of SVs on the environmental fate and toxicity of TMDs is critical for evaluating their risk. Our work discovered that SVs (with S/Mo ratios of 1.65 and 1.32) reduced the dispersibility and promoted aggregation of 2H phase molybdenum disulfide (2H-MoS2, a hot TMD) in aqueous solution. The generation capability of •O2- and •OH was increased and the dissolution of 2H-MoS2 was significantly accelerated after SVs formation. Different with pristine form, S-vacant 2H-MoS2 preferentially harvested proteins (i.e., forming protein corona) involved in antioxidation, photosynthetic electron transport, and the cytoskeleton structure of microalgae. These proteins contain a higher relative number of thiol groups, which exhibited stronger affinity to S-vacant than pristine 2H-MoS2, as elucidated by density functional theory calculations. Notably, SVs aggravated algal growth inhibition, oxidative damage, photosynthetic efficiency and cell membrane permeability reduction induced by 2H-MoS2 due to increased free radical yield and the specific binding of functional proteins. Our findings provide insights into the roles of SVs on the risk of MoS2 while highlighting the importance of rational design for TMDs application.
Collapse
Affiliation(s)
- Wei Zou
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China.
| | - Zepeng Wan
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Xiaoyu Yu
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Zhenzhen Liu
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| | - Peng Yuan
- Henan International Collaborative Laboratory for Health Effects and Intervention of Air Pollution, School of Public Health, Xinxiang Medical University, Xinxiang 453003, China
| | - Xingli Zhang
- School of Environment, Key Laboratory for Yellow River and Huai River Water Environment and Pollution Control, Ministry of Education, Henan Key Laboratory for Environmental Pollution Control, International Joint Laboratory on Key Techniques in Water Treatment, Henan Normal University, Xinxiang 453007, China
| |
Collapse
|
4
|
Aguirrezabala-Campano T, Gonzalez-Valencia R, Cervantes FJ, Thalasso F. Overall spatiotemporal dynamics of greenhouse gasses and oxygen in two subtropical reservoirs with contrasting trophic states. WATER RESEARCH 2021; 196:117056. [PMID: 33774352 DOI: 10.1016/j.watres.2021.117056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 03/08/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
The impact of cultural eutrophication on carbon cycling in subtropical reservoirs was assessed using high-resolution measurements of dissolved gas concentration, atmospheric exchange, and uptake/production rates of methane, carbon dioxide, and oxygen. Seasonal measurements were performed in two reservoirs that pertain to the same hydrological basin but are drastically different in terms of allochthonous carbon input. These results were used to feed a mass balance model, from which a large number of overall parameters were determined to explicitly describe the dynamics and spatial attributes of the carbon cycle in the reservoirs. A single graphical representation of each reservoir was created to facilitate an overall appraisal of the carbon cycle. The impact of cultural eutrophication was profound and resulted in a complete redistribution of how the various bioprocesses participated in the methane, carbon dioxide, and oxygen cycles. Among several identified impacts of eutrophication, it was observed that while eutrophication triggered increased methane production, this effect was followed by a similar increase in methane emissions and methanotrophic rates, while gross primary production was depleted.
Collapse
Affiliation(s)
- Teresa Aguirrezabala-Campano
- Department of Biotechnology and Bioengineering, Cinvestav, Avenida IPN 2508, Mexico City, San Pedro Zacatenco, 07360, Mexico
| | - Rodrigo Gonzalez-Valencia
- Department of Biotechnology and Bioengineering, Cinvestav, Avenida IPN 2508, Mexico City, San Pedro Zacatenco, 07360, Mexico
| | - Francisco J Cervantes
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro, 76230, Mexico
| | - Frédéric Thalasso
- Department of Biotechnology and Bioengineering, Cinvestav, Avenida IPN 2508, Mexico City, San Pedro Zacatenco, 07360, Mexico.
| |
Collapse
|
5
|
Chen X, Zheng M, Zhang G, Li F, Chen H, Leng Y. The nature of dissolved organic matter determines the biosorption capacity of Cu by algae. CHEMOSPHERE 2020; 252:126465. [PMID: 32199165 DOI: 10.1016/j.chemosphere.2020.126465] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 02/08/2020] [Accepted: 03/09/2020] [Indexed: 06/10/2023]
Abstract
The role of dissolved organic matter (DOM) on the biochemical behavior and toxicity of heavy metals in water is very important but complex and unclear. The present work extracted DOM from a natural water and separated it into three fractions, namely humic acid (HA), fulvic acid (FA) and transphilic acid (TPA). Optical detection showed that HA had most aromatic ring skeletons, FA had more aromatic ring hydrophilic groups, and TPA had the largest number of hydroxyl or carboxyl groups. Their effects on the toxicity of Cu by Chlorella pyrenoidosa depended on types and concentration of DOM. In the case of algal exposure to 0.003 mM initial Cu concentration, the final algal optical density increased from 0.317 of the control group to 0.345, 0.645 and 0.435 in the presence of 20, 10 mg L-1 HA, and 10 mg L-1 TPA, respectively, but were suppressed to 0.246, 0.117 and 0.234 in the presence of 10, 20 mg L-1 FA and 20 mg L-1 TPA. Most adsorption isotherms lost the linearity in the presence of HA, FA and TPA. The adsorbed Cu increased from 0.242 to 0.477 mmol g-1, following the order of increased concentration of HA, FA, and TPA. The formation of ternary complex and the multi-layer adsorption were proposed to explain the significant enhancement adsorption of Cu in the presence of FA and TPA. This study showed that the type and the density of effective functional groups in DOM determined its effects on Cu toxicity and bioavailability to algae.
Collapse
Affiliation(s)
- Xiujuan Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Mengmeng Zheng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Gaoxiang Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Feili Li
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China.
| | - Hexuan Chen
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| | - Yaling Leng
- College of Environment, Zhejiang University of Technology, Hangzhou, 310032, China
| |
Collapse
|
6
|
Wang R, Zhu W, Hu S, Feng G, Xue Z, Chen H. Hydrothermal pretreatment of salvaged cyanobacteria and use of pretreated medium for cultivating Scenedesmus obliquus. BIORESOURCE TECHNOLOGY 2019; 294:122120. [PMID: 31520855 DOI: 10.1016/j.biortech.2019.122120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 08/31/2019] [Accepted: 09/04/2019] [Indexed: 06/10/2023]
Abstract
This work studied the hydrothermal Pretreatment of Salvaged Cyanobacteria and used the pretreated slurry as medium for cultivating Scenedesmus obliquus. The cyanobacterial slurry was pretreated by chemical oxidation, hydrothermal treatment and hydrothermal oxidation, and then the cultivation experiment of oil-producing microalgae (Scenedesmus obliquus) was carried out. The results showed that hydrothermal oxidation could transform the hard-to-treat salvaged cyanobacteria into culture medium for microalgae. The oil yield from S. obliquus cultured in that was higher than that in conventional BG11 medium.
Collapse
Affiliation(s)
- Ruochen Wang
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
| | - Wei Zhu
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China.
| | - Siyuan Hu
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
| | - Ganyu Feng
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
| | - Zongpu Xue
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
| | - Huaimin Chen
- College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China; Ministry of Education, Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, College of Environment, Hohai University, No. 1 Xikang Road, Nanjing 210098, China
| |
Collapse
|
7
|
Misaki K, Matsuda S, Matsuda T, Kusakabe T, Shimizu Y. Detection of DNA damage formation by natural organic matter using EGFP-fused MDC1-expressing cells. CHEMOSPHERE 2019; 235:169-174. [PMID: 31255757 DOI: 10.1016/j.chemosphere.2019.06.126] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Revised: 06/13/2019] [Accepted: 06/17/2019] [Indexed: 06/09/2023]
Abstract
Studies have been conducted on the genotoxicity and carcinogenicity of disinfection by-products formed from natural organic matter (NOM) and mitigation effect for mutagens and clastogens by NOM. Whereas, reportedly, synthetic humic acid in high concentration has induced genotoxicity in human cells, and NOM samples have provoked mild oxidative and other physiological responses in aquatic organisms. Our group developed a novel detection method for DNA damage formation, namely enhanced green fluorescent protein (EGFP)-fused mediator of DNA damage checkpoint 1 (MDC1)-expressing human cells as simple and high-sensitive system. By using this method, a significant increase in the foci area was observed after 3 h, but not 24 h for 130 mgC L-1 Suwannee River fulvic acid (SRFA), 38 mgC L-1 humic acid (SRHA), and 19 mgC L-1 NOM (SRNOM). The SRNOM concentration is the original environmental one; therefore, it was suggested that the formation and repair of DNA damage associated with γ-H2AX, a biomarker for DNA double-strand breaks by mild oxidative stress, in Suwannee River (SR) were detected for the first time. The increase in the foci area was not observed for 18 mgC L-1 Lake Biwa fulvic acid (LBFA) and 50 mg L-1 catechin after both 3 h and 24 h. The difference between the SR and Lake Biwa (LB) samples may result from the differences in their electron-accepting capacity. The application of this methodology is expected to elucidate oxidative stress and toxicological effects shortly and in detail for many water samples.
Collapse
Affiliation(s)
- Kentaro Misaki
- Research Center for Environmental Quality Management (RCEQM), Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga, Japan; School of Nursing, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, Japan.
| | - Shun Matsuda
- Research Center for Environmental Quality Management (RCEQM), Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga, Japan
| | - Tomonari Matsuda
- Research Center for Environmental Quality Management (RCEQM), Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga, Japan
| | - Taketoshi Kusakabe
- Research Center for Environmental Quality Management (RCEQM), Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga, Japan
| | - Yoshihisa Shimizu
- Research Center for Environmental Quality Management (RCEQM), Graduate School of Engineering, Kyoto University, 1-2 Yumihama, Otsu, Shiga, Japan
| |
Collapse
|