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Zhou R, Liu Y, Li M, Cao J, Cheng J, Wei D, Li B, Wang Y, Jia D, Jiang B, Valiev RZ, Zhou Y. Electrical Responsive Coating with a Multilayered TiO 2-SnO 2-RuO 2 Heterostructure on Ti for Controlling Antibacterial Ability and Improving Osseointegration. ACS APPLIED MATERIALS & INTERFACES 2024; 16:39064-39078. [PMID: 39028896 DOI: 10.1021/acsami.4c07114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/21/2024]
Abstract
The bacterial infection and poor osseointegration of Ti implants could significantly compromise their applications in bone repair and replacement. Based on the carrier separation ability of the heterojunction and the redox reaction of pseudocapacitive metal oxides, we report an electrically responsive TiO2-SnO2-RuO2 coating with a multilayered heterostructure on a Ti implant. Owing to the band gap structure of the TiO2-SnO2-RuO2 coating, electron carriers are easily enriched at the coating surface, enabling a response to the endogenous electrical stimulation of the bone. With the formation of SnO2-RuO2 pseudocapacitance on the modified surface, the postcharging mode can significantly change the surface chemical state of the coating due to the redox reaction, enhancing the antibacterial ability and osteogenesis-related gene expression of the human bone marrow mesenchymal stem cells. Owing to the attraction for Ca2+, only the negatively postcharged SnO2@RuO2 can promote apatite deposition. The in vivo experiment reveals that the S-SnO2@RuO2-NP could effectively kill the bacteria colonized on the surface and promote osseointegration with the synostosis bonding interface. Thus, negatively charging the electrically responsive coating of TiO2-SnO2-RuO2 is a good strategy to endow modified Ti implants with excellent antibacterial ability and osseointegration.
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Affiliation(s)
- Rui Zhou
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, PR China
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Yifei Liu
- State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, PR China
| | - Ming Li
- Honghui Hospital, Xi'an Jiaotong University, Xi'an 710054, PR China
| | - Jianyun Cao
- Key Laboratory of LCR Materials and Devices of Yunnan Province, School of Materials and Energy, Yunnan University, Kunming 650500, PR China
| | - Jiahui Cheng
- The Second Affiliated Hospital of Xi'an Jiaotong University (Xibei Hospital), Xi'an 710004, PR China
| | - Daqing Wei
- Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Baoqiang Li
- Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China
- Laboratory of Dynamics and Extreme Characteristics of Promising Nanostructured Materials, Saint Petersburg State University, Saint Petersburg 199034, Russia
| | - Yaming Wang
- Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Dechang Jia
- Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China
| | - Bailing Jiang
- School of Materials Science and Engineering, Xi'an University of Technology, Xi'an 710048, PR China
| | - Ruslan Z Valiev
- Laboratory of Dynamics and Extreme Characteristics of Promising Nanostructured Materials, Saint Petersburg State University, Saint Petersburg 199034, Russia
- Institute of Physics of Advanced Materials, Ufa University of Science and Technology, Ufa 450076, Russia
| | - Yu Zhou
- Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150080, PR China
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Zhang X, Yang Q, Ma L, Zhang D, Lin W, Schlensky N, Cheng H, Zheng Y, Luo X, Ding C, Zhang Y, Hou X, Lu F, Yan H, Wang R, Li CZ, Qu K. Automatically showing microbial growth kinetics with a high-performance microbial growth analyzer. Biosens Bioelectron 2023; 239:115626. [PMID: 37643493 DOI: 10.1016/j.bios.2023.115626] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/11/2023] [Accepted: 08/20/2023] [Indexed: 08/31/2023]
Abstract
It is difficult to show microbial growth kinetics online when they grow in complex matrices. We presented a novel strategy to address this challenge by developing a high-performance microbial growth analyzer (HPMGA), which employed a unique 32-channel capacitively coupled contactless conductivity detector as a sensing element and fixed with a CellStatz software. It was capable of online showing accurate and repeatable growth curves of well-dispersed and bad-dispersed microbes, whether they grew in homogeneous simple culture broth or heterogeneous complex matrices. Moreover, it could automatically report key growth kinetics parameters. In comparison to optical density (OD), plate counting and broth microdilution (BMD) methods, we demonstrated its practicability in five scenarios: 1) the illustration of the growth, growth rate, and acceleration curves of Escherichia coli (E. coli); 2) the antimicrobial susceptibility testing (AST) of Oxacillin against Staphylococcus aureus (S. aureus); 3) the determination of Ag nanoparticle toxicity on Providencia rettgeri (P. rettgeri); 4) the characterization of milk fermentation; and 5) the enumeration of viable pathogenic Vibrio in shrimp body. Results highlighted that the HPMGA method had the advantages of universality and effectivity. This technology would significantly facilitate the routine analysis of microbial growth in many fields (biology, medicine, clinic, life, food, environment, and ecology), paving an avenue for microbiologists to achieve research goals that have been inhibited for years due to a lack of practical analytical methods.
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Affiliation(s)
- Xuzhi Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Qianqian Yang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Liangyu Ma
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Dahai Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Wentao Lin
- eDAQ Pty Ltd, 6 Doig Ave, Denistone East, NSW, 2112, Australia
| | - Nick Schlensky
- eDAQ Pty Ltd, 6 Doig Ave, Denistone East, NSW, 2112, Australia
| | - Hongrui Cheng
- College of Chemistry, Fuzhou University, Fuzhou, 350116, China
| | - Yuanhui Zheng
- College of Chemistry, Fuzhou University, Fuzhou, 350116, China.
| | - Xiliang Luo
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Caifeng Ding
- College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Yan Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Xiangyi Hou
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Feng Lu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Hua Yan
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Ruoju Wang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Chen-Zhong Li
- Biosensors & Bioelectronics Center, Biomedical Engineering, School of Medicine, The Chinese University of Hong Kong (Shenzhen), Shenzhen, 518172, China.
| | - Keming Qu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
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Vignardi CP, Adeleye AS, Kayal M, Oranu E, Miller RJ, Keller AA, Holden PA, Lenihan HS. Aging of Copper Nanoparticles in the Marine Environment Regulates Toxicity for a Coastal Phytoplankton Species. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:6989-6998. [PMID: 37083408 DOI: 10.1021/acs.est.2c07953] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Environmental conditions in aquatic ecosystems transform toxic chemicals over time, influencing their bioavailability and toxicity. Using an environmentally relevant methodology, we tested how exposure to seawater for 1-15 weeks influenced the accumulation and toxicity of copper nanoparticles (nano-Cu) in a marine phytoplankton species. Nano-Cu rapidly agglomerated in seawater and then decreased in size due to Cu dissolution. Dissolution rates declined during weeks 1-4 and remained low until 15 weeks, when the large agglomerates that had formed began to rapidly dissolve again. Marine phytoplankton species were exposed for 5-day periods to nano-Cu aged from 1 to 15 weeks at concentrations from 0.01 to 20 ppm. Toxicity to phytoplankton, measured as change in population growth rate, decreased significantly with particle aging from 0 to 4 weeks but increased substantially in the 15-week treatment due apparently to elevated Cu dissolution of reagglomerated particles. Results indicate that the transformation, fate, and toxicity of nano-Cu in marine ecosystems are influenced by a highly dynamic physicochemical aging process.
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Affiliation(s)
- Caroline P Vignardi
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
| | - Adeyemi S Adeleye
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
| | - Mohsen Kayal
- UMR ENTROPIE, IRD, IFREMER, CNRS, University of La Reunion, University of New Caledonia, Noumea 98848, New Caledonia
| | - Ekene Oranu
- College of Letters & Science, University of California, Santa Barbara, California 93106, United States
| | - Robert J Miller
- Marine Science Institute, University of California, Santa Barbara, California 93106, United States
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
| | - Patricia A Holden
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
| | - Hunter S Lenihan
- Bren School of Environmental Science and Management, University of California, Santa Barbara, California 93106, United States
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Zhang X, Hou X, Ma L, Shi Y, Zhang D, Qu K. Analytical methods for assessing antimicrobial activity of nanomaterials in complex media: advances, challenges, and perspectives. J Nanobiotechnology 2023; 21:97. [PMID: 36941596 PMCID: PMC10026445 DOI: 10.1186/s12951-023-01851-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 03/07/2023] [Indexed: 03/23/2023] Open
Abstract
Assessing the antimicrobial activity of engineered nanomaterials (ENMs), especially in realistic scenarios, is of great significance for both basic research and applications. Multiple analytical methods are available for analysis via off-line or on-line measurements. Real-world samples are often complex with inorganic and organic components, which complicates the measurements of microbial viability and/or metabolic activity. This article highlights the recent advances achieved in analytical methods including typical applications and specifics regarding their accuracy, cost, efficiency, and user-friendliness. Methodological drawbacks, technique gaps, and future perspectives are also discussed. This review aims to help researchers select suitable methods for gaining insight into antimicrobial activities of targeted ENMs in artificial and natural complex matrices.
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Affiliation(s)
- Xuzhi Zhang
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Xiangyi Hou
- School of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, 201306, China
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Liangyu Ma
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China
| | - Yaqi Shi
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China
| | - Dahai Zhang
- Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, 266100, China.
| | - Keming Qu
- Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao, 266071, China.
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5
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Rajan R, Huo P, Chandran K, Manickam Dakshinamoorthi B, Yun SI, Liu B. A review on the toxicity of silver nanoparticles against different biosystems. CHEMOSPHERE 2022; 292:133397. [PMID: 34954197 DOI: 10.1016/j.chemosphere.2021.133397] [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] [Received: 10/13/2021] [Revised: 12/03/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Despite significant progress made in the past two decades, silver nanoparticles (AgNPs) have not yet made it to the clinical trials. In addition, they showed both positive and negative effects in their toxicity from unicellular organism to well-developed multi-organ system, for example, rat. Although it is generally accepted that capped (bio)molecules have synergistic bioactivities and diminish the toxicity of metallic Ag core, convincing evidence is completely lacking. Therefore, in this review, we first highlight the recent in vivo toxicity studies of chemically manufactured AgNPs, biologically synthesized AgNPs and reference AgNPs of European Commission. Then, their toxic effects are compared with each other and the overlooked factors leading to the potential conflict of obtained toxicity results are discussed. Finally, suggestions are given to better design and conduct the future toxicity studies and to fast-track the successful clinical translation of AgNPs as well.
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Affiliation(s)
- Ramachandran Rajan
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China
| | - PeiPei Huo
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China
| | - Krishnaraj Chandran
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Department of Agricultural Convergence Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea
| | | | - Soon-Il Yun
- Department of Food Science and Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Department of Agricultural Convergence Technology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, 54896, Republic of Korea.
| | - Bo Liu
- Laboratory of Functional Molecules and Materials, School of Physics and Optoelectronic Engineering, Shandong University of Technology, Zibo, Shandong, 255000, PR China.
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Kabeerdass N, Al Otaibi A, Rajendran M, Manikandan A, Kashmery HA, Rahman MM, Madhu P, Khan A, Asiri AM, Mathanmohun M. Bacillus-Mediated Silver Nanoparticle Synthesis and Its Antagonistic Activity against Bacterial and Fungal Pathogens. Antibiotics (Basel) 2021; 10:1334. [PMID: 34827271 PMCID: PMC8614847 DOI: 10.3390/antibiotics10111334] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/25/2021] [Accepted: 10/26/2021] [Indexed: 12/24/2022] Open
Abstract
In this article, the supernatant of the soil-borne pathogen Bacillus mn14 was used as the catalyst for the synthesis of AgNPs. The antibacterial and antifungal activity of Bs-AgNPs was evaluated, in which S. viridans and R. solani showed susceptibility at 70 µL and 100 µL concentrations. Enzyme properties of the isolates, according to minimal inhibitory action and a growth-enhancing hormone-indole acetic acid (IAA) study of the isolates, were expressed in TLC as a purple color with an Rf value of 0.7. UV/Vis spectroscopy revealed the presence of small-sized AgNPs, with a surface plasmon resonance (SPR) peak at 450 nm. The particle size analyzer identified the average diameter of the particles as 40.2 nm. The X-ray diffraction study confirmed the crystalline nature and face-centered cubic type of the silver nanoparticle. Scanning electron microscopy characterized the globular, small, round shape of the silver nanoparticle. AFM revealed the two-dimensional topology of the silver nanoparticle with a characteristic size ranging around 50 nm. Confocal microscopy showed the cell-wall disruption of S. viridans treated with Bs-AgNPs. High-content screening and compound microscopy revealed the destruction of mycelia of R. solani after exposure to Bs-AgNPs. Furthermore, the Bs-AgNPs cured sheath blight disease by reducing lesion length and enhancing root and shoot length in Oryza sativa seeds. This soil-borne pathogen Bacillus-mediated synthesis approach of AgNPs appears to be cost-efficient, ecofriendly, and farmer-friendly, representing an easy way of providing valuable nutritious edibles in the future.
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Affiliation(s)
- Nivedhitha Kabeerdass
- Department of Microbiology, Muthayammal College of Arts & Science, Rasipuram, Namakkal DT 637408, Tamil Nadu, India;
| | - Ahmed Al Otaibi
- Chemistry Department, Faculty of Science, University of Ha’il, P.O. Box 2440, Ha’il 81451, Saudi Arabia;
| | - Manikandan Rajendran
- Department of Biotechnology, Padmavani Arts and Science College for Women, Salem 636011, Tamil Nadu, India;
| | - Ayyar Manikandan
- Department of Chemistry, Bharath Institute of Higher Education and Research (BIHER), Bharath University, Chennai 600073, Tamil Nadu, India;
- Centre for Catalysis and Renewable Energy, Bharath Institute of Higher Education and Research (BIHER), Bharath University, Chennai 600073, Tamil Nadu, India
| | - Heba A. Kashmery
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.K.); (M.M.R.); (A.M.A.)
| | - Mohammed M. Rahman
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.K.); (M.M.R.); (A.M.A.)
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - P. Madhu
- Department of Mechanical Engineering, Malnad College of Engineering, Hassan, Visvesvaraya Technological University, Belagavi 590018, Karnataka, India;
| | - Anish Khan
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.K.); (M.M.R.); (A.M.A.)
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdullah M. Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (H.A.K.); (M.M.R.); (A.M.A.)
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Maghimaa Mathanmohun
- Department of Microbiology, Muthayammal College of Arts & Science, Rasipuram, Namakkal DT 637408, Tamil Nadu, India;
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Zhang X, Wang X, Cheng H, Zheng Y, Zhao J, Qu K. A universal automated method for determining the bacteriostatic activity of nanomaterials. JOURNAL OF HAZARDOUS MATERIALS 2021; 413:125320. [PMID: 33611037 DOI: 10.1016/j.jhazmat.2021.125320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/26/2021] [Accepted: 02/01/2021] [Indexed: 06/12/2023]
Abstract
The lack of analytical strategies to directly determine the bacteriostatic activity of nanomaterials in complex aqueous media (e.g., environmentally relevant scenarios) seriously hampers the harvest of reliable data for nanomaterial risk assessment. Here, we created an automated phenotypic method based on a developed multi-channel contactless conductometric sensor. Bacterial growth kinetics of E. coli and S. aureus were determined via on-line monitoring of conductivity changes in simple media (e.g., liquid LB broth) and complex media (e.g., relevant river water and seawater samples with diverse pH, salinity, conductivity, turbidity, chemical oxygen demand and total suspended solids). The high temporal resolution growth curves provide detailed information on the bacteria inhibition of the model nanomaterial - Au nanospheres, Au nanorods, Ag nanospheres and Ag nanocubes - at each growth stage, thus enabling users to directly obtain minimum inhibitory concentrations. The method highlights the advantages of universality, simplicity and affordability. It opens up possibilities for the development of a powerful analytical platform for researches in the field of nanoscience, e.g. to assess ecotoxicity of nanomaterials.
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Affiliation(s)
- Xuzhi Zhang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
| | - Xiaochun Wang
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Hongrui Cheng
- College of Chemistry, Fuzhou University, Fuzhou 350116, China
| | - Yuanhui Zheng
- College of Chemistry, Fuzhou University, Fuzhou 350116, China.
| | - Jun Zhao
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China
| | - Keming Qu
- Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China; Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China.
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8
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Tegenaw A, Sorial GA, Sahle-Demessie E. Effect of colloid-size copper-based pesticides and wood-preservatives against microbial activities of Gram-positive Bacillus species using five-day biochemical oxygen demand test. J Environ Sci (China) 2021; 105:71-80. [PMID: 34130841 PMCID: PMC8217730 DOI: 10.1016/j.jes.2020.12.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 05/03/2023]
Abstract
Copper-based pesticides and wood preservatives could end up in the environment during production, use, and end-of-life via different pathways that could cause unintended ecological and adverse health effects. This paper provides the effect of colloid-size Cu-based pesticides (CuPRO and Kocide), micronized Cu azole (MCA-1 and MCA-2) and alkaline Cu quaternary (ACQ) treated woods, Cu2+, Cu2+ spiked untreated wood (UTW), and CuCO3 solutions against Gram-positive Bacillus species using five-day biochemical oxygen demand (BOD5) standard test. The total Cu leached from MCA-1, MCA-2, and ACQ in Milli-Q water after 5 days were ~0.1, ~0.11, and ~0.64 g/kg of wood, respectively. However, the form of Cu leached from MCA woods was mostly ionic (> 90%). The total organic carbon (TOC) content of any tested wood (UTW/MCA-1/MCA-2/ACQ) was ~99% of its corresponding total carbon (TC) content, whereas the TOC of any tested wood sawdust exceeded that of its corresponding piece/block by > 300%. The dissolved oxygen (DO) consumption value in the presence of Cu2+, CuCO3, CuPRO, and Kocide solutions was significantly influenced by Cu particles/ions. However, the DO consumption value in the presence of UTW/MCA-1/MCA-2/ACQ woods was significantly influenced by organics leached from woods. On the other hand, the DO consumption of MCA sawdust was greater than (300%) that of MCA pieces/block. The findings of this study provide more insight into how organics leached from woods significantly reduce the toxic effects of Cu ions against Gram-positive Bacillus species.
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Affiliation(s)
- Ayenachew Tegenaw
- Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, 701 Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221-0012, USA.
| | - George A Sorial
- Department of Chemical and Environmental Engineering, College of Engineering and Applied Science, 701 Engineering Research Center, University of Cincinnati, Cincinnati, OH 45221-0012, USA
| | - Endalkachew Sahle-Demessie
- U.S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solution and Emergency Response, Cincinnati, OH 45268, USA
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Electrophoretic Deposition of Aged and Charge Controlled Colloidal Copper Sulfide Nanoparticles. NANOMATERIALS 2021; 11:nano11010133. [PMID: 33429956 PMCID: PMC7827911 DOI: 10.3390/nano11010133] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 12/22/2020] [Accepted: 12/31/2020] [Indexed: 12/22/2022]
Abstract
Colloidal nanoparticles (NPs) have been recently spotlighted as building blocks for various nanostructured devices. Their collective properties have been exhibited by arranging them on a substrate to form assembled NPs. In particular, electrophoretic deposition (EPD) is an emerging fabrication method for such nanostructured films. To maximize the benefits of this method, further studies are required to fully elucidate the key parameters that influence the NP deposition. Herein, two key parameters are examined, namely: (i) the aging of colloidal NPs and (ii) the charge formation by surface ligands. The aging of Cu2-xS NPs changes the charge states, thus leading to different NP deposition behaviors. The SEM images of NP films, dynamic light scattering, and zeta potential results demonstrated that the charge control and restoration of interparticle interactions for aged NPs were achieved via simple ligand engineering. The charge control of colloidal NPs was found to be more dominant than the influence of aging, which can alter the surface charges of the NPs. The present results thus reveal that the charge formation on the colloidal NPs, which depends on the surface ligands, is an important controllable parameter in EPD.
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10
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Wheeler RM, Lower SK. A meta-analysis framework to assess the role of units in describing nanoparticle toxicity. NANOIMPACT 2021; 21:100277. [PMID: 35559769 DOI: 10.1016/j.impact.2020.100277] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 11/13/2020] [Accepted: 11/16/2020] [Indexed: 06/15/2023]
Abstract
Despite ample research on nanoparticles, their environmental toxicity is still debatable. The lack of consensus is due in part to the challenge of comparing studies because of variability in parameters like test organism, test medium, and duration of experiment. However, the unit used to compare the toxicology of nanoparticles is one variable that experimentalists can control. Traditionally, mass per volume is the most common unit used to make comparisons, but there is growing evidence that alternative units such as surface area per volume or particles per volume may provide a better and more mechanistic measure of toxicity. Herein, we propose and test a meta-analytic framework to study the effect of units on nanotoxicology using data from the NanoE-Tox database, a freely available database containing 1518 toxicology values from 224 published articles of which 42 records met our basic inclusion criteria. These data were augmented with more recent data published over the past five years as archived by the Web of Science citation index. An additional 27 records from 1676 papers met the inclusion criteria and were also included in the analysis. The meta-analysis framework measures the degree of heterogeneity for each of three units (grams/L, particles/L, surface area/L) grouped by the type of test organism, particle chemistry, and manner in which a nanoparticle's size was measured (e.g., nominal particle size reported by the manufacturer vs. measurement of size for particles suspended in the liquid medium used in a subsequent toxicity experiment). The result of the meta-analysis reveals that surface area per volume reduces the heterogeneity in the Ag crustacean subgroup when nanoparticle size was measured in the test medium, and the ZnO crustacean subgroup when nanoparticle size was measured out the test medium and may therefore be a more appropriate estimate of the toxicity of soluble nanoparticles. No subgroups in our analysis showed a reduction in heterogeneity for particles per volume in either soluble or insoluble nanoparticles. The lack of conclusion on insoluble nanoparticles was not due to a limitation of our meta-analysis but rather highlights a critical deficiency in the primary literature. The majority of published studies fail to report common measures of error that are essential for further analysis (i.e. error of the measured nanoparticle size and/or interoperable error of the measured half-maximal concentration of the toxic endpoint). If future nanotoxicity studies report such error, as they should, then the framework of our meta-analysis could be used more broadly to provide a simple, statistically rigorous way to assess the role of units on the toxicity of nanoparticles.
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Affiliation(s)
- Robert M Wheeler
- The Ohio State University, Columbus, OH 43210, United States of America.
| | - Steven K Lower
- The Ohio State University, Columbus, OH 43210, United States of America.
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Georgantzopoulou A, Farkas J, Ndungu K, Coutris C, Carvalho PA, Booth AM, Macken A. Wastewater-Aged Silver Nanoparticles in Single and Combined Exposures with Titanium Dioxide Affect the Early Development of the Marine Copepod Tisbe battagliai. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2020; 54:12316-12325. [PMID: 32852942 DOI: 10.1021/acs.est.0c03113] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
In this study, the effects of aged Ag and TiO2 nanoparticles (NPs), individually and as a mixture, in wastewater relative to their pristine counterparts on the development of the copepod nauplii (Tisbe battagliai) were investigated. NP behavior in synthetic wastewater and seawater was characterized during aging and exposure. A delayed development and subsequent mortality were observed after 6 days of exposure to aged Ag NPs, with a twofold decrease in EC50 (316 μg/L) compared to pristine NPs (EC50 640 μg/L) despite the similar dissolved Ag concentrations measured for aged and pristine Ag NPs (441 and 378 μg/L, respectively). In coexposures with TiO2 NPs, higher dissolved Ag levels were measured for aged NPs (238.3 μg/L) relative to pristine NPs (98.57 μg/L). Coexposure resulted in a slight decrease (15%) in the Ag NP EC50 (270 μg/L) with a 1.9-fold increase in the Ag NP retained within the organisms after depuration (2.82% retention) compared to Ag NP single exposures as measured with sp-ICP-MS, suggesting that the particles are still bioavailable despite the heteroaggregation observed between Ag, Ti NPs, and wastewater components. This study shows that the presence of TiO2 NPs can affect the stability and toxicity of Ag NPs in complex media that cannot be predicted solely based on ionic, total, or nanoparticulate concentrations, and the need for studying NP interactions in more complex matrices is highlighted.
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Affiliation(s)
| | - Julia Farkas
- SINTEF Ocean, Brattørkaia 17C, 7010 Trondheim, Norway
| | - Kuria Ndungu
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway
| | - Claire Coutris
- NIBIO Norwegian Institute of Bioeconomy Research, Høyskoleveien 7, 1431 Ås, Norway
| | | | - Andy M Booth
- SINTEF Ocean, Brattørkaia 17C, 7010 Trondheim, Norway
| | - Ailbhe Macken
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21, 0349 Oslo, Norway
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12
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Spurgeon DJ, Lahive E, Schultz CL. Nanomaterial Transformations in the Environment: Effects of Changing Exposure Forms on Bioaccumulation and Toxicity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000618. [PMID: 32402152 DOI: 10.1002/smll.202000618] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 04/10/2020] [Accepted: 04/11/2020] [Indexed: 06/11/2023]
Abstract
In the environment, nanomaterials (NMs) are subject to chemical transformations, such as redox reactions, dissolution, coating degradation, and organic matter, protein, and macromolecule binding, and physical transformations including homo or heteroagglomeration. The combination of these reactions can result in NMs with differing characteristics progressing through a functional fate pathway that leads to the formation of transformed NM functional fate groups with shared properties. To establish the nature of such effects of transformation on NMs, four main types of studies are conducted: 1) chemical aging for transformation of pristine NMs; 2) manipulation of test media to change NM surface properties; 3) aging of pristine NMs water, sediment, or soil; 4) NM aging in waste streams and natural environments. From these studies a paradigm of aging effects on NM uptake and toxicity can be developed. Transformation, especially speciation changes, largely results in reduced potency. Further reactions at the surface resulting in processes, such as ecocorona formation and heteroagglomeration may additionally reduce NM potency. When NMs of differing potency transform and enter environments, common transformation reaction occurring in receiving system may act to reduce the variation in hazard between different initial NMs leading to similar actual hazard under realistic exposure conditions.
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Affiliation(s)
- David J Spurgeon
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, UK
| | - Elma Lahive
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, UK
| | - Carolin L Schultz
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford, Oxfordshire, OX10 8BB, UK
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13
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Baysal A, Saygin H, Ustabasi GS. Age-related physicochemical differences in ZnO nanoparticles in the seawater and their bacterial interaction. ENVIRONMENTAL MONITORING AND ASSESSMENT 2020; 192:276. [PMID: 32274591 DOI: 10.1007/s10661-020-08254-w] [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: 09/05/2019] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Abstract
To assess the fate and behavior of engineered nanoparticles in the environment, it is important to examine the physicochemical and toxicological transformation of nanoparticles as they age in seawater. In this study, we investigated how aging and seawater conditions altered the physiochemical structure of nanoparticles and affected their interactions with bacteria. For this purpose, zinc oxide nanoparticles were aged under different seawater conditions by keeping them in 1%, 10%, and 100% seawater for 1 day and 20 days. The main physicochemical parameters (surface chemistry, chemical composition, particle size, and zeta potential) and toxicity of aged nanoparticles towards gram-negative Pseudomonas aeruginosa and gram-positive Staphylococcus aureus were examined. The results indicated that aged zinc oxide nanoparticles in various concentrations of seawater changed their surface chemistry, chemical composition, particle size, and zeta potentials. Growth inhibition results were observed in that the inhibition of gram-negative (Pseudomonas aeruginosa) bacteria was higher compared with the gram-positive (Staphylococcus aureus) bacteria, and Staphylococcus aureus activated with the aged zinc oxide nanoparticles. Also, the results showed that the key biochemical factors affected by the aging and seawater concentration.
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Affiliation(s)
- Asli Baysal
- Health Services Vocational School of Higher Education, T. C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey.
| | - Hasan Saygin
- Application and Research Center for Advanced Studies, T. C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey
| | - Gul Sirin Ustabasi
- Health Services Vocational School of Higher Education, T. C. Istanbul Aydin University, Sefakoy Kucukcekmece, 34295, Istanbul, Turkey
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14
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Khan I, Bahuguna A, Krishnan M, Shukla S, Lee H, Min SH, Choi DK, Cho Y, Bajpai VK, Huh YS, Kang SC. The effect of biogenic manufactured silver nanoparticles on human endothelial cells and zebrafish model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 679:365-377. [PMID: 31085416 DOI: 10.1016/j.scitotenv.2019.05.045] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2019] [Revised: 05/02/2019] [Accepted: 05/04/2019] [Indexed: 06/09/2023]
Abstract
Human health and environment have been continuously getting exposure to toxic chemicals including nanomaterial; therefore, nontoxicity has recently attracted huge amount of attention. In this study, RU-AgNPs were synthesized by a green synthesis procedure and evaluated for their toxicity in human umbilical vein endothelial cells (HUVECs) as well as on zebrafish embryos via apoptotic pathway. The synthesized RU-AgNPs were average in size (20-25 nm) with a negative surface charge of -13.43 mV. As a result, RU-AgNPs potentiated the formation of reactive oxygen species (ROS) in HUVECs as confirmed by the results of immunoblotting analysis using apoptotic markers, such as Bax, Bcl2, and cytochrome C. Moreover, the induction of apoptosis in HUVECs was also authenticated in a dose-dependent manner after the treatment with RU-AgNPs by the Incucyte analysis. In vivo trials conducted on zebrafish visualized the mortality, malformation, and imbalanced in the heart rate, and cell death of the whole embryo, including severe morphological changes in the yolk sac and the tail of zebrafish. Furthermore, the results of western blot analysis demonstrated the increasing intensity of apoptotic biomarkers such as Bax, Bcl2, and Cyto C, including enhanced production of ROS, validating the cell death in zebrafish larvae. In addition, chemically functionalized silver nanoparticles found to be more cytotoxic than biogenic functionalized silver nanoparticles. Above-mentioned findings clearly demonstrate that Ru-AgNPs cause the toxicity via ROS-induced apoptotic pathway. Therefore, it is necessary to decide RU-AgNPs toxicity levels before being used in any biomedical application.
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Affiliation(s)
- Imran Khan
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Republic of Korea; Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Ashutosh Bahuguna
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea; Department of Food Science and Technology, Yeungnam University, Gyeongsan-si, Gyeongsangbuk-do, 38541, Republic of Korea
| | - Manigandan Krishnan
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea
| | - Shruti Shukla
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Republic of Korea
| | - Hoomin Lee
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Republic of Korea
| | - Sang-Hyun Min
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, Republic of Korea
| | - Dong Kyu Choi
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation (DGMIF), Daegu, Republic of Korea
| | - Youngjin Cho
- Research Group of Consumer Safety, Korea Food Research Institute, Wanju-gun, Jeollabuk-do 55365, Republic of Korea
| | - Vivek K Bajpai
- Department of Energy and Materials Engineering, Dongguk University-Seoul, 30 Pildong-ro 1-gil, Seoul 04620, Republic of Korea.
| | - Yun Suk Huh
- Department of Biological Engineering, Biohybrid Systems Research Center (BSRC), Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Republic of Korea.
| | - Sun Chul Kang
- Department of Biotechnology, Daegu University, Gyeongsan, Gyeongbuk 38453, Republic of Korea.
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15
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Hurtado-Gallego J, Leganés F, Rosal R, Fernández-Piñas F. Use of Cyanobacterial Luminescent Bioreporters to Report on the Environmental Impact of Metallic Nanoparticles. SENSORS (BASEL, SWITZERLAND) 2019; 19:E3597. [PMID: 31430858 PMCID: PMC6721232 DOI: 10.3390/s19163597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 08/06/2019] [Accepted: 08/12/2019] [Indexed: 11/16/2022]
Abstract
Due to their ecological relevance, low cost, and easy maintenance, cyanobacteria have been used for bioreporter development. In this study, a battery of cyanobacterial bioreporters has been used to assess the ecotoxicity of four highly used metallic nanoparticles (NPs). The toxicity of these NPs was tested using the bioreporter Nostoc CPB4337 (Anabaena CPB4337). As oxidative stress is a primary toxic mechanism of metallic NPs, cyanobacterial reactive oxygen species (ROS)-detecting bioreporters were used. Metallic NPs release metal ions, which contribute to their toxic effect and the formation of ROS, so a metal-detecting bioreporter was also used to detect the bioavailable metals. The results confirm that ROS production by NPs was due to the NPs per se and not by released free-ions, which in fact were almost undetectable. Although the metal-detecting bioreporter could not detect the dissolved metal ions, it was able to detect the metallic NPs themselves, indicating that this bioreporter may be useful to detect them in the environment. ROS production varied depending on the growth medium or environmental matrices conditions and on the NP type. This work demonstrated the different levels of ROS production by metallic NPs and the importance of nanotoxicology studies in real matrices.
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Affiliation(s)
- Jara Hurtado-Gallego
- Departamento de Biología, Facultad de ciencias, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Francisco Leganés
- Departamento de Biología, Facultad de ciencias, Universidad Autónoma de Madrid, 28029 Madrid, Spain
| | - Roberto Rosal
- Departamento de Ingeniería Química, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Francisca Fernández-Piñas
- Departamento de Biología, Facultad de ciencias, Universidad Autónoma de Madrid, 28029 Madrid, Spain.
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16
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Lewis RW, Bertsch PM, McNear DH. Nanotoxicity of engineered nanomaterials (ENMs) to environmentally relevant beneficial soil bacteria - a critical review. Nanotoxicology 2019; 13:392-428. [PMID: 30760121 DOI: 10.1080/17435390.2018.1530391] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Deposition of engineered nanomaterials (ENMs) in various environmental compartments is projected to continue rising exponentially. Terrestrial environments are expected to be the largest repository for environmentally released ENMs. Because ENMs are enriched in biosolids during wastewater treatment, agriculturally applied biosolids facilitate ENM exposure of key soil micro-organisms, such as plant growth-promoting rhizobacteria (PGPR). The ecological ramifications of increasing levels of ENM exposure of terrestrial micro-organisms are not clearly understood, but a growing body of research has investigated the toxicity of ENMs to various soil bacteria using a myriad of toxicity end-points and experimental procedures. This review explores what is known regarding ENM toxicity to important soil bacteria, with a focus on ENMs which are expected to accumulate in terrestrial ecosystems at the highest concentrations and pose the greatest potential threat to soil micro-organisms having potential indirect detrimental effects on plant growth. Knowledge gaps in the fundamental understanding of nanotoxicity to bacteria are identified, including the role of physicochemical properties of ENMs in toxicity responses, particularly in agriculturally relevant micro-organisms. Strategies for improving the impact of future research through the implementation of in-depth ENM characterization and use of necessary experimental controls are proposed. The future of nanotoxicological research employing microbial ecoreceptors is also explored, highlighting the need for continued research utilizing bacterial isolates while concurrently expanding efforts to study ENM-bacteria interactions in more complex environmentally relevant media, e.g. soil. Additionally, the particular importance of future work to extensively examine nanotoxicity in the context of bacterial ecosystem function, especially of plant growth-promoting agents, is proposed.
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Affiliation(s)
- Ricky W Lewis
- a Rhizosphere Science Laboratory, Department of Plant and Soil Sciences , University of Kentucky , Lexington , KY , USA
| | - Paul M Bertsch
- a Rhizosphere Science Laboratory, Department of Plant and Soil Sciences , University of Kentucky , Lexington , KY , USA.,b CSIRO Land and Water , Ecosciences Precinct , Brisbane , Australia.,c Center for the Environmental Implications of Nanotechnology (CEINT) , Duke University , Durham , NC , USA
| | - David H McNear
- a Rhizosphere Science Laboratory, Department of Plant and Soil Sciences , University of Kentucky , Lexington , KY , USA
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17
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Georgantzopoulou A, Almeida Carvalho P, Vogelsang C, Tilahun M, Ndungu K, Booth AM, Thomas KV, Macken A. Ecotoxicological Effects of Transformed Silver and Titanium Dioxide Nanoparticles in the Effluent from a Lab-Scale Wastewater Treatment System. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9431-9441. [PMID: 30048126 DOI: 10.1021/acs.est.8b01663] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
In this study, a lab-scale wastewater treatment plant (WWTP), simulating biological treatment, received 10 μg/L Ag and 100 μg/L TiO2 nanoparticles (NPs) for 5 weeks. NP partitioning was evaluated by size fractionation (>0.7 μm, 0.1-0.7 μm, 3 kDa-0.1 μm, < 3 kDa) using inductively coupled plasma mass spectrometry (ICP-MS), single particle ICP-MS and transmission electron microscopy. The ecotoxicological effects of the transformed NPs in the effluent were assessed using a battery of marine and freshwater bioassays (algae and crustaceans) and an in vitro gill cell line model (RTgill-W1). TiO2 aggregates were detected in the effluent, whereas Ag NPs (0.1-0.22 μg/L) were associated with S, Cu, Zn. Fractionation showed that >80% of Ag and Ti were associated with the effluent solids. Increased toxicity was observed during weeks 2-3 and the effects were species-dependent; with marine epibenthic copepods and algae being the most sensitive. Increased reactive oxygen species formation was observed in vitro followed by an increase in epithelial permeability. The effluent affected the gill epithelium integrity in vitro and impacted defense pathways (upregulation of multixenobiotic resistance genes). To our knowledge, this is the first study to combine a lab-scale activated sludge WWTP with extensive characterization techniques and ecotoxicological assays to study the effects of transformed NPs in the effluent.
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Affiliation(s)
| | | | - Christian Vogelsang
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21 , 0349 , Oslo , Norway
| | - Mengstab Tilahun
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21 , 0349 , Oslo , Norway
| | - Kuria Ndungu
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21 , 0349 , Oslo , Norway
| | - Andy M Booth
- SINTEF Ocean, Brattørkaia 17C , 7010 , Trondheim , Norway
| | - Kevin V Thomas
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21 , 0349 , Oslo , Norway
- Queensland Alliance for Environmental Health Sciences (QAEHS) , University of Queensland , 20 Cornwall Street , Woolloongabba , Queensland 4102 Australia
| | - Ailbhe Macken
- NIVA, Norwegian Institute for Water Research, Gaustadalleen 21 , 0349 , Oslo , Norway
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18
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Kleiven M, Rossbach LM, Gallego-Urrea JA, Brede DA, Oughton DH, Coutris C. Characterizing the behavior, uptake, and toxicity of NM300K silver nanoparticles in Caenorhabditis elegans. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:1799-1810. [PMID: 29603779 DOI: 10.1002/etc.4144] [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: 01/22/2018] [Revised: 03/06/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
Using Caenorhabditis elegans as a model organism, we addressed the potential linkage among toxicity of NM300K Ag nanoparticles (AgNPs), their particle size distribution, and the presence of dissolved Ag in the test media. Of the 3 endpoints assessed (growth, fertility, and reproduction), reproduction was the most sensitive, with the 50% effect concentration (EC50) ranging from 0.26 to 0.84 mg Ag L-1 and 0.08 to 0.11 mg Ag L-1 for NM300K and AgNO3 , respectively. Silver uptake by C. elegans was similar for both forms of Ag, whereas bioaccumulation was higher in AgNO3 exposure. The observed differences in toxicity between NM300K and AgNO3 did not correlate with bioaccumulated Ag, which suggests that toxicity is a function of the type of exposing agent (AgNPs vs AgNO3 ) and its mode of action. Before addition of the food source (Escherichia coli), size fractionation revealed that dissolved Ag comprised 13 to 90% and 4 to 8% of total Ag in the AgNO3 and NM300K treatments, respectively. No dissolved Ag was detectable in the actual test media due to immediate Ag adsorption to bacteria. The results of the present study indicate that information on behavior and characterization of exposure conditions is essential for nanotoxicity studies. Environ Toxicol Chem 2018;37:1799-1810. © 2018 SETAC.
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Affiliation(s)
- Merethe Kleiven
- Center for Environmental Radioactivity (CERAD CoE), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Lisa M Rossbach
- Center for Environmental Radioactivity (CERAD CoE), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Julian A Gallego-Urrea
- Center for Environmental Radioactivity (CERAD CoE), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
- Department of Marine Sciences, University of Gothenburg, Kristineberg, Fiskebäckskil, Sweden
| | - Dag A Brede
- Center for Environmental Radioactivity (CERAD CoE), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Deborah H Oughton
- Center for Environmental Radioactivity (CERAD CoE), Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, Ås, Norway
| | - Claire Coutris
- Division of Environment and Natural Resources, Norwegian Institute of Bioeconomy Research, Høgskoleveien, Ås, Norway
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19
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Echavarri-Bravo V, Paterson L, Aspray TJ, Porter JS, Winson MK, Hartl MGJ. Natural marine bacteria as model organisms for the hazard-assessment of consumer products containing silver nanoparticles. MARINE ENVIRONMENTAL RESEARCH 2017; 130:293-302. [PMID: 28867133 DOI: 10.1016/j.marenvres.2017.08.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2017] [Revised: 08/15/2017] [Accepted: 08/19/2017] [Indexed: 06/07/2023]
Abstract
Scarce information is available regarding the fate and toxicology of engineered silver nanoparticles (AgNPs) in the marine environment, especially when compared to other environmental compartments. Hence, the antibacterial activity of the NM-300 AgNPs (OECD programme) and a household product containing colloidal AgNPs (Mesosilver) was investigated using marine bacteria, pure cultures and natural mixed populations (microcosm approach). Bacterial susceptibility to AgNPs was species-specific, with Gram negative bacteria being more resistant than the Gram positive species (NM-300 concentration used ranged between 0.062 and 1.5 mg L-1), and the Mesosilver product was more toxic than the NM-300. Bacterial viability and the physiological status (O2 uptake measured by respirometry) of the microbial community in the microcosm was negatively affected at an initial concentration of 1 mg L-1 NM-300. The high chloride concentrations in the media/seawater led to the formation of silver-chloro complexes thus enhancing AgNP toxicity. We recommend the use of natural marine bacteria as models when assessing the environmental relevant antibacterial properties of products containing nanosilver.
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Affiliation(s)
- Virginia Echavarri-Bravo
- Heriot-Watt University, Centre for Marine Biodiversity & Biotechnology, Institute for Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Riccarton, Edinburgh EH14 4AS, Scotland, UK
| | - Lynn Paterson
- SUPA, Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, School of Engineering and Physical Sciences, Riccarton, Edinburgh EH14 4AS, Scotland, UK
| | - Thomas J Aspray
- Heriot-Watt University, Centre for Marine Biodiversity & Biotechnology, Institute for Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Riccarton, Edinburgh EH14 4AS, Scotland, UK
| | - Joanne S Porter
- Heriot-Watt University, Centre for Marine Biodiversity & Biotechnology, Institute for Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Riccarton, Edinburgh EH14 4AS, Scotland, UK; Heriot Watt University, International Centre for Island Technology, Institute of Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Old Academy, Back Road, Stromness, Orkney KW16 3AW, Scotland, UK
| | - Michael K Winson
- Heriot-Watt University, Centre for Marine Biodiversity & Biotechnology, Institute for Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Riccarton, Edinburgh EH14 4AS, Scotland, UK
| | - Mark G J Hartl
- Heriot-Watt University, Centre for Marine Biodiversity & Biotechnology, Institute for Life and Earth Sciences, School of Energy, Geoscience, Infrastructure and Society, Riccarton, Edinburgh EH14 4AS, Scotland, UK.
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20
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Martin JD, Telgmann L, Metcalfe CD. A Method for Preparing Silver Nanoparticle Suspensions in Bulk for Ecotoxicity Testing and Ecological Risk Assessment. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2017; 98:589-594. [PMID: 28341993 DOI: 10.1007/s00128-017-2067-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 03/11/2017] [Indexed: 06/06/2023]
Abstract
Methods are needed to prepare stable suspensions of engineered nanoparticles in aqueous matrixes for ecotoxicity testing and ecological risk assessments. We developed a novel method of preparing large volumes of silver nanoparticles (AgNP) in suspension using a commercially available rotor-stator dispersion mill. AgNP in powder form (PVP capped, 30-50 nm) was suspended in deionized water and natural lake water at 1 g/L and the addition of 0.025% (w/v) gum arabic (GA) increased stability over 2 weeks after preparation. The concentrations of total and dissolved Ag in the suspensions did not change significantly over this period. Analysis of hydrodynamic diameters of the major peaks in suspension using dynamic light scattering showed that suspensions prepared with GA were stable, and this was confirmed by single-particle ICP-MS analysis. This method for dispersing AgNPs provides an inexpensive, yet reliable method for preparing suspensions for toxicity testing and ecosystem level studies of the fate and biological effects of AgNPs in aquatic ecosystems.
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Affiliation(s)
- Jonathan D Martin
- Water Quality Centre, Trent University, Peterborough, ON, K9J 7B8, Canada
| | - Lena Telgmann
- Water Quality Centre, Trent University, Peterborough, ON, K9J 7B8, Canada
| | - Chris D Metcalfe
- Water Quality Centre, Trent University, Peterborough, ON, K9J 7B8, Canada.
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21
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Engineered Nanomaterials in the Environment. NANOMATERIALS 2016; 6:nano6060106. [PMID: 28335235 PMCID: PMC5302635 DOI: 10.3390/nano6060106] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/03/2016] [Revised: 06/03/2016] [Accepted: 06/03/2016] [Indexed: 11/20/2022]
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