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Zúñiga-Miranda J, Guerra J, Mueller A, Mayorga-Ramos A, Carrera-Pacheco SE, Barba-Ostria C, Heredia-Moya J, Guamán LP. Iron Oxide Nanoparticles: Green Synthesis and Their Antimicrobial Activity. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2919. [PMID: 37999273 PMCID: PMC10674528 DOI: 10.3390/nano13222919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 11/25/2023]
Abstract
The rise of antimicrobial resistance caused by inappropriate use of these agents in various settings has become a global health threat. Nanotechnology offers the potential for the synthesis of nanoparticles (NPs) with antimicrobial activity, such as iron oxide nanoparticles (IONPs). The use of IONPs is a promising way to overcome antimicrobial resistance or pathogenicity because of their ability to interact with several biological molecules and to inhibit microbial growth. In this review, we outline the pivotal findings over the past decade concerning methods for the green synthesis of IONPs using bacteria, fungi, plants, and organic waste. Subsequently, we delve into the primary challenges encountered in green synthesis utilizing diverse organisms and organic materials. Furthermore, we compile the most common methods employed for the characterization of these IONPs. To conclude, we highlight the applications of these IONPs as promising antibacterial, antifungal, antiparasitic, and antiviral agents.
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Affiliation(s)
- Johana Zúñiga-Miranda
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador; (J.Z.-M.); (A.M.-R.); (S.E.C.-P.); (J.H.-M.)
| | - Julio Guerra
- Facultad de Ingeniería en Ciencias Aplicadas, Universidad Técnica del Norte, Ibarra 100107, Ecuador;
| | - Alexander Mueller
- Department of Molecular Biology, Princeton University, Princeton, NJ 08544, USA;
| | - Arianna Mayorga-Ramos
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador; (J.Z.-M.); (A.M.-R.); (S.E.C.-P.); (J.H.-M.)
| | - Saskya E. Carrera-Pacheco
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador; (J.Z.-M.); (A.M.-R.); (S.E.C.-P.); (J.H.-M.)
| | - Carlos Barba-Ostria
- Escuela de Medicina, Colegio de Ciencias de la Salud Quito, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador;
- Instituto de Microbiología, Universidad San Francisco de Quito USFQ, Quito 170901, Ecuador
| | - Jorge Heredia-Moya
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador; (J.Z.-M.); (A.M.-R.); (S.E.C.-P.); (J.H.-M.)
| | - Linda P. Guamán
- Centro de Investigación Biomédica (CENBIO), Facultad de Ciencias de la Salud Eugenio Espejo, Universidad UTE, Quito 170527, Ecuador; (J.Z.-M.); (A.M.-R.); (S.E.C.-P.); (J.H.-M.)
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2
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Pérez-Reverón R, Álvarez-Méndez SJ, González-Sálamo J, Socas-Hernández C, Díaz-Peña FJ, Hernández-Sánchez C, Hernández-Borges J. Nanoplastics in the soil environment: Analytical methods, occurrence, fate and ecological implications. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 317:120788. [PMID: 36481462 DOI: 10.1016/j.envpol.2022.120788] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 11/19/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
Soils play a very important role in ecosystems sustainability, either natural or agricultural ones, serving as an essential support for living organisms of different kinds. However, in the current context of extremely high plastic pollution, soils are highly threatened. Plastics can change the chemical and physical properties of the soils and may also affect the biota. Of particular importance is the fact that plastics can be fragmented into microplastics and, to a final extent into nanoplastics. Due to their extremely low size and high surface area, nanoplastics may even have a higher impact in soil ecosystems. Their transport through the edaphic environment is regulated by the physicochemical properties of the soil and plastic particles themselves, anthropic activities and biota interactions. Their degradation in soils is associated with a series of mechanical, photo-, thermo-, and bio-mediated transformations eventually conducive to their mineralisation. Their tiny size is precisely the main setback when it comes to sampling soils and subsequent processes for their identification and quantification, albeit pyrolysis coupled with gas chromatography-mass spectrometry and other spectroscopic techniques have proven to be useful for their analysis. Another issue as a consequence of their minuscule size lies in their uptake by plants roots and their ingestion by soil dwelling fauna, producing morphological deformations, damage to organs and physiological malfunctions, as well as the risks associated to their entrance in the food chain, although current conclusions are not always consistent and show the same pattern of effects. Thus, given the omnipresence and seriousness of the plastic menace, this review article pretends to provide a general overview of the most recent data available regarding nanoplastics determination, occurrence, fate and effects in soils, with special emphasis on their ecological implications.
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Affiliation(s)
- Raquel Pérez-Reverón
- Departamento de Biología Animal, Edafología y Geología, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain
| | - Sergio J Álvarez-Méndez
- Departamento de Biología Animal, Edafología y Geología, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna (ULL), Avda. Astrofísico Francisco Sánchez, s/n, 38206 La Laguna, Tenerife, Spain; Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain
| | - Javier González-Sálamo
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Department of Chemistry, Sapienza University of Rome, P.le Aldo Moro, 5, 00185, Rome, Italy
| | - Cristina Socas-Hernández
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Foundation for the Promotion of Health and Biomedical Research in the Valencian Region, FISABIO-Public Health, Avenida Catalunya, 21, 46020, Valencia, Spain
| | - Francisco J Díaz-Peña
- Departamento de Biología Animal, Edafología y Geología, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain
| | - Cintia Hernández-Sánchez
- Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Departamento de Obstetricia y Ginecología, Pediatría, Medicina Preventiva y Salud Pública, Toxicología, Medicina Forense y Legal y Parasitología, Área de Medicina Preventiva y Salud Pública, Escuela Politécnica Superior de Ingeniería, Sección de Náutica, Máquinas y Radioelectrónica Naval, Universidad de La Laguna (ULL), Vía Auxiliar Paso Alto 2, 38001, Santa Cruz de Tenerife, Spain
| | - Javier Hernández-Borges
- Departamento de Química, Unidad Departamental de Química Analítica, Facultad de Ciencias, Universidad de La Laguna (ULL). Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain; Instituto Universitario de Enfermedades Tropicales y Salud Pública de Canarias, Universidad de La Laguna (ULL), Avda. Astrofísico Fco. Sánchez, s/n, 38206, San Cristóbal de La Laguna, Spain.
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Das I, Gogoi B, Sharma B, Borah D. Role of metal-nanoparticles in farming practices: an insight. 3 Biotech 2022; 12:294. [PMID: 36276472 PMCID: PMC9519825 DOI: 10.1007/s13205-022-03361-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Accepted: 09/12/2022] [Indexed: 11/01/2022] Open
Abstract
Nanotechnology introduces revolutionary approaches for agriculture in the form of nano-based pesticides, fertilizers, sensors, weed-controlling agents, enhanced seed germination materials, etc. Even though metal-nanoparticles (NPs) have shown their potential to improve crop yield, the mode of action at the cellular level and fate in the human body and the environment are not well understood yet. Several metal-nanoparticles have been studied extensively by researchers for their active role in enhancing the rate of seed germination and crop quality augmentation which may happen due to several mechanisms such as increased porosity in nano-primed seeds inducing up-regulation of the expression of aquaporin and Reactive Oxygen Species (ROS) genes involved in water uptake, improving the root dehydrogenase activity to enhance the water absorption capability, etc. However, researchers have also demonstrated and reported the possible toxicity of NPs in the environment due to their agricultural practices. But the fate of NPs and their environmental impact are still unclear and largely vary based on several factors such as the size of NPs, coating material, mode of discharge and locations, etc. This review thoroughly focuses on the mode of action of various NPs in seed germination and accumulation, translocation through cells, and potential environmental and health risks.
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Affiliation(s)
- Indukalpa Das
- Department of Biotechnology, The Assam Royal Global University, Guwahati, 781035 India
| | - Bhaskarjyoti Gogoi
- Department of Biotechnology, The Assam Royal Global University, Guwahati, 781035 India
| | - Bidisha Sharma
- Department of Botany, Cotton University, Guwahati, 781001 India
| | - Debajit Borah
- Department of Biotechnology, The Assam Royal Global University, Guwahati, 781035 India
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4
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Cheng K, Wang M, Wang S, Liu N, Xu J, Wang H, Su Y. Monolayer Sc 2CF 2 as a Potential Selective and Sensitive NO 2 Sensor: Insight from First-Principles Calculations. ACS OMEGA 2022; 7:9267-9275. [PMID: 35350369 PMCID: PMC8945134 DOI: 10.1021/acsomega.1c06027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
Two-dimensional materials with excellent surface-volume ratios and massive reaction sites recently have been receiving attention for gas sensing. With first-principles calculations, we explored the performance of monolayer Sc2CF2 as a gas sensor. We investigated how molecule adsorption affects its electronic structure and optical properties. It is found that a large charge transfer quantity happens between Sc2CF2 and NO2, which results from the fact that the lowest unoccupied molecular orbital (LUMO) of NO2 is below the valence band maximum (VBM) of Sc2CF2. Moreover, the MD simulation shows that NO2 can adsorb on the Sc2CF2 surface stably at room temperature. We explored the effect of biaxial strain on the adsorption energy and charge transfer quantity of each system, and the results show that the biaxial strain can enhance both the adsorption energy and charge transfer quantity of the NO2 system and thus can improve the sensitivity of Sc2CF2 in detecting the NO2 molecule. Furthermore, we investigated the adsorption behavior and charge transfer of polar polyatomic molecules at the Sc2CF2 surface with h-BN as a substrate, and the results demonstrate that the h-BN substrate can hardly modify the main results. Our result predicts that Sc2CF2 can be a promising selective and sensitive sensor to detect the NO2 molecule, and could also give a theoretical guide for other terminated MXenes used for gas sensors or detectors.
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Affiliation(s)
- Kai Cheng
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
- Key
Laboratory of Materials Modification by Laser, Ion and Electron Beams
(Dalian University of Technology), Ministry
of Education, Dalian 116024, China
- Department
of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
| | - Mengxia Wang
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Sihao Wang
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Nanshu Liu
- Key
Laboratory of Materials Modification by Laser, Ion and Electron Beams
(Dalian University of Technology), Ministry
of Education, Dalian 116024, China
| | - Jinke Xu
- School
of Electronic Engineering, Xi’an
University of Posts and Telecommunications, Xi’an 710121, China
| | - Han Wang
- Department
of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, New York 12180, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Yan Su
- Key
Laboratory of Materials Modification by Laser, Ion and Electron Beams
(Dalian University of Technology), Ministry
of Education, Dalian 116024, China
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Vázquez OA, Rahman MS. An ecotoxicological approach to microplastics on terrestrial and aquatic organisms: A systematic review in assessment, monitoring and biological impact. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2021; 84:103615. [PMID: 33607259 DOI: 10.1016/j.etap.2021.103615] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 02/03/2021] [Accepted: 02/11/2021] [Indexed: 05/06/2023]
Abstract
Marine and land plastic debris biodegrades at micro- and nanoscales through progressive fragmentation. Oceanographic model studies confirm the presence of up to ∼2.41 million tons of microplastics across the Atlantic, Pacific, and Indian subtropical gyres. Microplastics distribute from primary (e.g., exfoliating cleansers) and secondary (e.g., chemical deterioration) sources in the environment. This anthropogenic phenomenon poses a threat to the flora and fauna of terrestrial and aquatic ecosystems as ingestion and entanglement cases increase over time. This review focuses on the impact of microplastics across taxa at suggested environmentally relevant concentrations, and advances the groundwork for future ecotoxicological-based research on microplastics including the main points: (i) adhesion of chemical pollutants (e.g., PCBs); (ii) biological effects (e.g., bioaccumulation, biomagnification, biotransportation) in terrestrial and aquatic organisms; (iii) physico-chemical properties (e.g., polybrominated diphenyl ethers) and biodegradation pathways in the environment (e.g., chemical stress, heat stress); and (iv) an ecotoxicological prospect for optimized impact assessments.
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Affiliation(s)
- Omar A Vázquez
- Biochemistry and Molecular Biology Program, University of Texas Rio Grande Valley, Brownsville, TX, USA
| | - Md Saydur Rahman
- Biochemistry and Molecular Biology Program, University of Texas Rio Grande Valley, Brownsville, TX, USA; School of Earth, Environmental, and Marine Sciences, University of Texas Rio Grande Valley, Brownsville, TX, USA.
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6
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Iqbal S, Xu J, Allen SD, Khan S, Nadir S, Arif MS, Yasmeen T. Unraveling consequences of soil micro- and nano-plastic pollution on soil-plant system: Implications for nitrogen (N) cycling and soil microbial activity. CHEMOSPHERE 2020; 260:127578. [PMID: 32683024 DOI: 10.1016/j.chemosphere.2020.127578] [Citation(s) in RCA: 65] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2020] [Revised: 06/20/2020] [Accepted: 06/29/2020] [Indexed: 06/11/2023]
Abstract
Micro- and nano-plastics have widely been recognized as major global environmental problem due to its widespread use and inadequate waste management. The emergence of these plastic pollutants in agroecosystem is a legitimate ecotoxicological concerns for food web exchanges. In agriculture, micro/nano plastics are originated from a variety of different agricultural management practices, such as the use of compost, sewage sludge and mulching. A range of soil properties and plant traits are affected by their presence. With the increase of plastic debris, these pollutant materials have now begun to demonstrate serious implications for key soil ecosystem functions, such as soil microbial activity and nutrient cycling. Nitrogen (N) cycle is key predictor of ecological stability and management in terrestrial ecosystem. In this review, we evaluate ecological risks associated with micro-nano plastic for soil-plant system. We also discuss the consequence of plastic pollutants, either positive or negative, on soil microbial activities. In addition, we systematically summarize both direct and hypothesized implications for N cycling in agroecosystem. We conclude that soil N transformation had showed varied effects resulting from different types and sizes of plastic polymers present in soil. While mixed effects of microplastic pollution on plant growth and yield have been observed, biodegradable plastics have appeared to pose greater risk for plant growth compared to chemical plastic polymers.
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Affiliation(s)
- Shahid Iqbal
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China; East and Central Asia Regional Office, World Agroforestry Centre (ICRAF), 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Centre for Mountain Futures (CMF), Kunming Institute of Botany, 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China.
| | - Jianchu Xu
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China; East and Central Asia Regional Office, World Agroforestry Centre (ICRAF), 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Centre for Mountain Futures (CMF), Kunming Institute of Botany, 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China.
| | - Schaefer Douglas Allen
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China; East and Central Asia Regional Office, World Agroforestry Centre (ICRAF), 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Centre for Mountain Futures (CMF), Kunming Institute of Botany, 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China
| | - Sehroon Khan
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China; East and Central Asia Regional Office, World Agroforestry Centre (ICRAF), 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Centre for Mountain Futures (CMF), Kunming Institute of Botany, 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China
| | - Sadia Nadir
- CAS Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, Yunnan, China; East and Central Asia Regional Office, World Agroforestry Centre (ICRAF), 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Centre for Mountain Futures (CMF), Kunming Institute of Botany, 132 Lanhei Rd, Heilongtan, Kunming, 650201, Yunnan, China; Department of Chemistry, Faculty of Sciences, University of Science and Technology Bannu, Khyber Pakhtunkhwa, Bannu, 28100, Pakistan
| | - Muhammad Saleem Arif
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
| | - Tahira Yasmeen
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad, 38000, Pakistan
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7
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Komendová R, Žídek J, Berka M, Jemelková M, Řezáčová V, Conte P, Kučerík J. Small-sized platinum nanoparticles in soil organic matter: Influence on water holding capacity, evaporation and structural rigidity. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 694:133822. [PMID: 31756795 DOI: 10.1016/j.scitotenv.2019.133822] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/26/2019] [Accepted: 08/06/2019] [Indexed: 06/10/2023]
Abstract
Engineered and anthropogenic nanoparticles represent a new type of pollutants. Up until now, many studies have reported its adverse effect on biota, but the potential influence on the properties and functions of environmental compartments has largely been ignored. In this work, the effect of Pt nanoparticles on the functions and properties of model soil organic matter has been studied. Using differential scanning calorimetry and molecular modeling, the effect of a wide range of 3 nm Pt nanoparticles concentrations on water holding capacity, the strength of water binding, the stability of water molecule bridges and the content of aliphatic crystallites was studied. It was found that strong hydration of the nanoparticles influences the 3D water structural network and acts as kosmotropic agents (structure-forming) in water bridges and as chaotropic agents (i.e. water destructuring) in larger water volumes. Contrarily, the interaction with soil organic matter moieties partially eliminates these effects. As a result, the 3 nm Pt nanoparticles decreased the evaporation enthalpy of water in soil organic matter and supported soil desiccation. They also increased the strength of water molecule bridges and increased the soil structural rigidity even at low concentrations. Additionally, at high concentrations, they decreased the water content in soil organic matter and induced the aliphatic moieties' crystallization. It is concluded that the small-sized Pt nanoparticles, and perhaps other types as well, may affect the local physicochemical processes in soils and may consequently contribute to enhanced evapotranspiration and deterioration of soil functions.
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Affiliation(s)
- Renata Komendová
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic
| | - Jan Žídek
- Central European Institute of Technology, Purkyňova 123, 61200 Brno, Czech Republic
| | - Michal Berka
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic
| | - Marta Jemelková
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic
| | - Veronika Řezáčová
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic
| | - Pellegrino Conte
- Dipartimento di Scienze Agrarie, Alimentari e Forestali, Università degli Studi di Palermo, v.le delle Scienze edificio 4, 90128 Palermo, Italy
| | - Jiří Kučerík
- Institute of Chemistry and Technology of Environmental Protection, Faculty of Chemistry, Brno University of Technology, Purkyňova 118, 61200 Brno, Czech Republic.
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8
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Fletcher ND, Lieb HC, Mullaugh KM. Stability of silver nanoparticle sulfidation products. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 648:854-860. [PMID: 30138885 DOI: 10.1016/j.scitotenv.2018.08.239] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/17/2018] [Accepted: 08/18/2018] [Indexed: 06/08/2023]
Abstract
The adoption of silver nanoparticles in consumer goods has raised concerns about the potential environmental harm of their widespread use. We studied chemical transformations that Ag NPs may undergo as they pass through sulfide-rich conditions common in waste water treatment plants (WWTPs), which may limit the release of Ag+ from Ag NPs due to the formation of low-solubility silver sulfide (Ag2S). However, it is uncertain whether sulfidation is complete and if sulfidized Ag NPs continue to release Ag+. To address these uncertainties, we monitored the reaction of Ag NPs with various levels of sulfide with an ion selective electrode and UV/visible spectrophotometry over the course of two months. We characterized the products of the sulfidation reactions with a purge-and-trap acid volatile sulfide (AVS) analysis, which served as a measure of the stability of the sulfidized products because sulfide would be readily lost to oxidation unless it is stabilized as Ag2S. The Ag NP surface plasmon resonance (SPR) absorbance peak was initially diminished and then returned over the course of several days after reaction with limited amounts of sulfide, suggesting a dynamic system that may retain some characteristics of the pristine Ag NPs. However, ICP-MS analysis of sulfidized Ag NP suspensions over a two-month period demonstrates that sulfidation limits the release of Ag+ ions from nanosilver that pass through a WWTP, even when sulfide concentrations are limited relative to silver.
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Affiliation(s)
- Nathaniel D Fletcher
- Department of Chemistry & Biochemistry, 66 George St., College of Charleston, Charleston, SC, USA
| | - Heather C Lieb
- Department of Chemistry & Biochemistry, 66 George St., College of Charleston, Charleston, SC, USA
| | - Katherine M Mullaugh
- Department of Chemistry & Biochemistry, 66 George St., College of Charleston, Charleston, SC, USA.
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9
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Geitner NK, Cooper JL, Avellan A, Castellon BT, Perrotta BG, Bossa N, Simonin M, Anderson SM, Inoue S, Hochella MF, Richardson CJ, Bernhardt ES, Lowry GV, Ferguson PL, Matson CW, King RS, Unrine JM, Wiesner MR, Hsu-Kim H. Size-Based Differential Transport, Uptake, and Mass Distribution of Ceria (CeO 2) Nanoparticles in Wetland Mesocosms. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:9768-9776. [PMID: 30067347 DOI: 10.1021/acs.est.8b02040] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Trace metals associated with nanoparticles are known to possess reactivities that are different from their larger-size counterparts. However, the relative importance of small relative to large particles for the overall distribution and biouptake of these metals is not as well studied in complex environmental systems. Here, we have examined differences in the long term fate and transport of ceria (CeO2) nanoparticles of two different sizes (3.8 vs 185 nm), dosed weekly to freshwater wetland mesocosms over 9 months. While the majority of CeO2 particles were detected in soils and sediments at the end of nine months, there were significant differences observed in fate, distribution, and transport mechanisms between the two materials. Small nanoparticles were removed from the water column primarily through heteroaggregation with suspended solids and plants, while large nanoparticles were removed primarily by sedimentation. A greater fraction of small particles remained in the upper floc layers of sediment relative to the large particles (31% vs 7%). Cerium from the small particles were also significantly more bioavailable to aquatic plants (2% vs 0.5%), snails (44 vs 2.6 ng), and insects (8 vs 0.07 μg). Small CeO2 particles were also significantly reduced from Ce(IV) to Ce(III), while aquatic sediments were a sink for untransformed large nanoparticles. These results demonstrate that trace metals originating from nanoscale materials have much greater potential than their larger counterparts to distribute throughout multiple compartments of a complex aquatic ecosystem and contribute to the overall bioavailable pool of the metal for biouptake and trophic transfer.
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Affiliation(s)
- Nicholas K Geitner
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Jane L Cooper
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Astrid Avellan
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil & Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - Benjamin T Castellon
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Environmental Science , Baylor University , Waco , Texas 76706 , United States
| | - Brittany G Perrotta
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Baylor University , Waco , Texas 76706 , United States
| | - Nathan Bossa
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Marie Simonin
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Steven M Anderson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Sayako Inoue
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Geosciences , Virginia Polytechnic Institute and State University , Blacksburg , Virginia 24061 , United States
| | - Michael F Hochella
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Geosciences , Virginia Polytechnic Institute and State University , Blacksburg , Virginia 24061 , United States
- Energy and Environment Directorate Pacific Northwest National Laboratory Richland , Washington 99354 , United States
| | - Curtis J Richardson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Nicholas School of the Environment , Duke University , Durham , North Carolina 27708 , United States
| | - Emily S Bernhardt
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Duke University , Durham , North Carolina 27708 , United States
| | - Gregory V Lowry
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil & Environmental Engineering , Carnegie Mellon University , Pittsburgh , Pennsylvania 15213 , United States
| | - P Lee Ferguson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Cole W Matson
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Environmental Science , Baylor University , Waco , Texas 76706 , United States
| | - Ryan S King
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Biology , Baylor University , Waco , Texas 76706 , United States
| | - Jason M Unrine
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Plant and Soil Sciences , University of Kentucky , Lexington , Kentucky 40506 , United States
| | - Mark R Wiesner
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
| | - Heileen Hsu-Kim
- Center for the Environmental Implications of Nanotechnology , Duke University , Durham , North Carolina 27708 , United States
- Civil and Environmental Engineering Department , Duke University , Durham , North Carolina 27708 , United States
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10
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Mourdikoudis S, Pallares RM, Thanh NTK. Characterization techniques for nanoparticles: comparison and complementarity upon studying nanoparticle properties. NANOSCALE 2018; 10:12871-12934. [PMID: 29926865 DOI: 10.1039/c8nr02278j] [Citation(s) in RCA: 537] [Impact Index Per Article: 89.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Nanostructures have attracted huge interest as a rapidly growing class of materials for many applications. Several techniques have been used to characterize the size, crystal structure, elemental composition and a variety of other physical properties of nanoparticles. In several cases, there are physical properties that can be evaluated by more than one technique. Different strengths and limitations of each technique complicate the choice of the most suitable method, while often a combinatorial characterization approach is needed. In addition, given that the significance of nanoparticles in basic research and applications is constantly increasing, it is necessary that researchers from separate fields overcome the challenges in the reproducible and reliable characterization of nanomaterials, after their synthesis and further process (e.g. annealing) stages. The principal objective of this review is to summarize the present knowledge on the use, advances, advantages and weaknesses of a large number of experimental techniques that are available for the characterization of nanoparticles. Different characterization techniques are classified according to the concept/group of the technique used, the information they can provide, or the materials that they are destined for. We describe the main characteristics of the techniques and their operation principles and we give various examples of their use, presenting them in a comparative mode, when possible, in relation to the property studied in each case.
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Affiliation(s)
- Stefanos Mourdikoudis
- Biophysics Group, Department of Physics and Astronomy, University College London, London, WC1E 6BT, UK.
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11
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Ng EL, Huerta Lwanga E, Eldridge SM, Johnston P, Hu HW, Geissen V, Chen D. An overview of microplastic and nanoplastic pollution in agroecosystems. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 627:1377-1388. [PMID: 30857101 DOI: 10.1016/j.scitotenv.2018.01.341] [Citation(s) in RCA: 525] [Impact Index Per Article: 87.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/31/2018] [Accepted: 01/31/2018] [Indexed: 05/20/2023]
Abstract
Microplastics and nanoplastics are emerging pollutants of global importance. They are small enough to be ingested by a wide range of organisms and at nano-scale, they may cross some biological barriers. However, our understanding of their ecological impact on the terrestrial environment is limited. Plastic particle loading in agroecosystems could be high due to inputs of some recycled organic waste and plastic film mulching, so it is vital that we develop a greater understanding of any potentially harmful or adverse impacts of these pollutants to agroecosystems. In this article, we discuss the sources of plastic particles in agroecosystems, the mechanisms, constraints and dynamic behaviour of plastic during aging on land, and explore the responses of soil organisms and plants at different levels of biological organisation to plastic particles of micro and nano-scale. Based on limited evidence at this point and understanding that the lack of evidence of ecological impact from microplastic and nanoplastic in agroecosystems does not equate to the evidence of absence, we propose considerations for addressing the gaps in knowledge so that we can adequately safeguard world food supply.
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Affiliation(s)
- Ee-Ling Ng
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia.
| | - Esperanza Huerta Lwanga
- Soil Physics and Land Management Group, Wageningen University & Research, Droevendaalsesteeg 4, 6708PB Wageningen, The Netherlands; Agroecologia, El Colegio de la Frontera Sur, Unidad Campeche Av Polígono s/n, Cd. Industrial, Lerma, Campeche, Mexico
| | - Simon M Eldridge
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
| | | | - Hang-Wei Hu
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
| | - Violette Geissen
- Soil Physics and Land Management Group, Wageningen University & Research, Droevendaalsesteeg 4, 6708PB Wageningen, The Netherlands
| | - Deli Chen
- School of Agriculture and Food, Faculty of Veterinary and Agricultural Sciences, The University of Melbourne, Victoria 3010, Australia
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12
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Zhang T, Lu D, Zeng L, Yin Y, He Y, Liu Q, Jiang G. Role of Secondary Particle Formation in the Persistence of Silver Nanoparticles in Humic Acid Containing Water under Light Irradiation. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:14164-14172. [PMID: 29164869 DOI: 10.1021/acs.est.7b04115] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The wide use of silver nanoparticles (AgNPs) leads to the increasing release of AgNPs into the environment. Dissolved organic matter (DOM) is a key factor affecting the behaviors and fate of AgNPs in the aquatic environment. However, the mechanisms for the DOM-mediated transformations of AgNPs are still not fully understood. In this study, we investigated the persistence of AgNPs in the aquatic environment in the presence of different concentrations of humic acid (HA) over periods of time up to 14 days. The Ag species were monitored and characterized by absorption spectrometry, transmission electron microscopy (TEM), inductively coupled plasma mass spectrometry (ICP-MS), and multicollector ICP-MS (MC-ICP-MS). Results showed that the long-term persistence of AgNPs in HA-containing water was determined by two critical concentrations of HA. When the HA concentration exceeded a lower critical value, AgNPs could be persistent in the solution, and a large number of AgNPs were formed secondarily from the HA-induced reduction of the Ag+ ions released from the primary AgNPs, causing a redistribution of the particle size. With the HA concentration above a higher critical value, AgNPs could persist in the solution without a significant change in particle size. Notably, we used Ag isotope fractionation to investigate the transformation mechanism of AgNPs. The natural isotopic analysis by MC-ICP-MS revealed that the size redistribution of AgNPs caused significant Ag isotope fractionation, which gave additional evidence for the proposed mechanisms. This study provides new insights into the environmental fate of engineered AgNPs and highlights the usefulness of stable isotope fractionation in environmental nanotechnology.
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Affiliation(s)
- Tuoya Zhang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dawei Lu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lixi Zeng
- School of Environment, Guangzhou Key Laboratory of Environmental Exposure and Health, and Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University , Guangzhou 510632, China
| | - Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
| | - Yujian He
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qian Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Institute of Environment and Health, Jianghan University , Wuhan 430056, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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13
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Koelmans AA, Besseling E, Foekema E, Kooi M, Mintenig S, Ossendorp BC, Redondo-Hasselerharm PE, Verschoor A, van Wezel AP, Scheffer M. Risks of Plastic Debris: Unravelling Fact, Opinion, Perception, and Belief. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:11513-11519. [PMID: 28971682 PMCID: PMC5677762 DOI: 10.1021/acs.est.7b02219] [Citation(s) in RCA: 167] [Impact Index Per Article: 23.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Researcher and media alarms have caused plastic debris to be perceived as a major threat to humans and animals. However, although the waste of plastic in the environment is clearly undesirable for aesthetic and economic reasons, the actual environmental risks of different plastics and their associated chemicals remain largely unknown. Here we show how a systematic assessment of adverse outcome pathways based on ecologically relevant metrics for exposure and effect can bring risk assessment within reach. Results of such an assessment will help to respond to the current public worry in a balanced way and allow policy makers to take measures for scientifically sound reasons.
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Affiliation(s)
- Albert A. Koelmans
- Aquatic
Ecology and Water Quality Management group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands
- Wageningen
Marine Research, Den Helder, The Netherlands
- E-mail:
| | - Ellen Besseling
- Aquatic
Ecology and Water Quality Management group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands
- Wageningen
Marine Research, Den Helder, The Netherlands
| | - Edwin Foekema
- Wageningen
Marine Research, Den Helder, The Netherlands
- Marine
Animal Ecology group, Wageningen University
& Research, Wageningen, The Netherlands
| | - Merel Kooi
- Aquatic
Ecology and Water Quality Management group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands
| | - Svenja Mintenig
- KWR
Watercycle Research Institute, Nieuwegein, The Netherlands
- Copernicus
Institute, Utrecht University, Utrecht, The Netherlands
| | | | - Paula E. Redondo-Hasselerharm
- Aquatic
Ecology and Water Quality Management group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands
| | - Anja Verschoor
- National
Institute of Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Annemarie P. van Wezel
- KWR
Watercycle Research Institute, Nieuwegein, The Netherlands
- Copernicus
Institute, Utrecht University, Utrecht, The Netherlands
| | - Marten Scheffer
- Aquatic
Ecology and Water Quality Management group, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands
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14
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Geitner NK, Zhao W, Ding F, Chen W, Wiesner MR. Mechanistic Insights from Discrete Molecular Dynamics Simulations of Pesticide-Nanoparticle Interactions. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:8396-8404. [PMID: 28686420 DOI: 10.1021/acs.est.7b01674] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Nanoscale particles have the potential to modulate the transport, lifetimes, and ultimate uptake of pesticides that may otherwise be bound to agricultural soils. Engineered nanoparticles provide a unique platform for studying these interactions. In this study, we utilized discrete molecular dynamics (DMD) as a screening tool for examining nanoparticle-pesticide adsorptive interactions. As a proof-of-concept, we selected a library of 15 pesticides common in the United States and 4 nanomaterials with likely natural or incidental sources, and simulated all possible nanoparticle-pesticide pairs. The resulting adsorption coefficients derived from DMD simulations ranged over several orders of magnitude, and in many cases were significantly stronger than pesticide adsorption on clay surfaces, highlighting the significance of specific nanoscale phases as a preferential media with which pesticides may associate. Binding was found to be significantly enhanced by the capacity to form hydrogen bonds with slightly hydroxylated fullerols, highlighting the importance of considering the precise nature of weathered nanomaterials as opposed to pristine precursors. Results were compared to experimental adsorption studies using selected pesticides, with a Pearson correlation coefficient of 0.97.
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Affiliation(s)
- Nicholas K Geitner
- Center for the Environmental Implications of NanoTechnology, Department of Civil and Environmental Engineering, Duke University , Durham, North Carolina 27708, United States
| | - Weilu Zhao
- College of Environmental Science and Engineering, Nankai University , Tianjin 300350, China
| | - Feng Ding
- Department of Physics and Astronomy, Clemson University , Clemson, South Carolina 29634, United States
| | - Wei Chen
- College of Environmental Science and Engineering, Nankai University , Tianjin 300350, China
| | - Mark R Wiesner
- Center for the Environmental Implications of NanoTechnology, Department of Civil and Environmental Engineering, Duke University , Durham, North Carolina 27708, United States
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15
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Aquatic Ecotoxicity of Microplastics and Nanoplastics: Lessons Learned from Engineered Nanomaterials. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/978-3-319-61615-5_2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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16
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Adsorption of Extracellular Polymeric Substances Derived from S. cerevisiae to Ceria Nanoparticles and the Effects on Their Colloidal Stability. ENVIRONMENTS 2017. [DOI: 10.3390/environments4030048] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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17
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Boyes WK, Thornton BLM, Al-Abed SR, Andersen CP, Bouchard DC, Burgess RM, Hubal EAC, Ho KT, Hughes MF, Kitchin K, Reichman JR, Rogers KR, Ross JA, Rygiewicz PT, Scheckel KG, Thai SF, Zepp RG, Zucker RM. A comprehensive framework for evaluating the environmental health and safety implications of engineered nanomaterials. Crit Rev Toxicol 2017; 47:767-810. [DOI: 10.1080/10408444.2017.1328400] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- William K. Boyes
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Brittany Lila M. Thornton
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Souhail R. Al-Abed
- National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA
| | - Christian P. Andersen
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Dermont C. Bouchard
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA, USA
| | - Robert M. Burgess
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Narragansett, RI, USA
| | - Elaine A. Cohen Hubal
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Kay T. Ho
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Narragansett, RI, USA
| | - Michael F. Hughes
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Kirk Kitchin
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jay R. Reichman
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Kim R. Rogers
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Jeffrey A. Ross
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Paul T. Rygiewicz
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Corvallis, OR, USA
| | - Kirk G. Scheckel
- National Risk Management Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Cincinnati, OH, USA
| | - Sheau-Fung Thai
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Richard G. Zepp
- National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Athens, GA, USA
| | - Robert M. Zucker
- National Health and Environmental Effects Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
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18
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Tou F, Yang Y, Feng J, Niu Z, Pan H, Qin Y, Guo X, Meng X, Liu M, Hochella MF. Environmental Risk Implications of Metals in Sludges from Waste Water Treatment Plants: The Discovery of Vast Stores of Metal-Containing Nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:4831-4840. [PMID: 28380301 DOI: 10.1021/acs.est.6b05931] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Nanoparticle (NP) assessment in sludge materials, although of growing importance in eco- and biotoxicity studies, is commonly overlooked and, at best, understudied. In the present study, sewage sludge samples from across the mega-city of Shanghai, China were investigated for the first time using a sequential extraction method coupled with single particle inductively coupled plasma mass spectrometry (SP-ICP-MS) to quantify the abundance of metal-containing NPs in the extraction fractions and transmission electron microscopy to specifically identify the nanophases present. In general, most sludges observed showed high concentrations of Cr, Cu, Cd, Ni, Zn, and Pb, exceeding the maximum permitted values in the national application standard of acid soil in China. NPs in these sludges contribute little to the volume and mass but account for about half of the total particle number. Based on electron microscopy techniques, various NPs were further identified, including Ti-, Fe-, Zn-, Sn-, and Pb-containing NPs. All NPs, ignored by traditional metal risk evaluation methods, were observed at a concentration of 107 -1011 particles/g within the bioavailable fraction of metals. These results indicate the underestimate or misestimation in evaluating the environmental risks of metals based on traditional sequential extraction methods. A new approach for the environmental risk assessment of metals, including NPs, is urgently needed.
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Affiliation(s)
| | | | | | | | | | | | | | - Xiangzhou Meng
- State Key Laboratory of Pollution Control and Resources Reuse, College of Environmental Science and Engineering, Tongji University , Shanghai 200092, China
| | | | - Michael F Hochella
- The Center for NanoBioEarth, Department of Geosciences, Virginia Tech , Blacksburg, Virginia 24061, United States
- Geosciences Group, Energy and Environment Directorate, Pacific Northwest National Laboratory , Richland, Washington 99352, United States
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19
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Larner SF, Wang J, Goodman J, Altman MBO, Xin M, Wang KKW. In Vitro Neurotoxicity Resulting from Exposure of Cultured Neural Cells to Several Types of Nanoparticles. J Cell Death 2017; 10:1179670717694523. [PMID: 28469474 PMCID: PMC5392047 DOI: 10.1177/1179670717694523] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Accepted: 11/01/2016] [Indexed: 01/01/2023] Open
Abstract
Laboratory and industrial production of various nanoparticles, single-walled nanotubes (SWNTs), fullerene (C60), cadmium selenide (CdSe) quantum dots, carbon black (CB), and dye-doped silica nanospheres (NSs), has greatly increased in the past 15 years. However, little research has been done to analyze the toxicity of these materials. With recent studies showing that nano-substances can cross the blood–brain barrier, we examined the neurotoxicity of these manufactured nanoparticles. By employing the rat PC-12 neuronal-like cell line as the basis for our studies, we were able to evaluate the toxicity caused by these five nanoparticles. The level of toxicity was measured by testing for cell viability using the lactate dehydrogenase (LDH) cell viability assay, morphological analysis of changes in cellular structures, and Western blot analyses of αII-spectrin breakdown products (SBDP) as cell death indicators. Our results showed cytotoxicity in nondifferentiated PC-12 cells exposed to CB (10–100 µg/mL), SWNTs (10–100 µg/mL), C60 (100 µg/mL), CdSe (10 µg/mL), CB (500 µg/mL), and dye-doped silicon NSs (10 µg/mL). Exposure to higher concentrations (100 µg/mL) of SWNTs, CB, and C60 increased the formation of SBDP150/145, as well as cell membrane contraction and the formation of cytosolic vacuoles. The incorporations of the nanoparticles into cell cytoplasm were observed using the fluorescent dye-doped NSs in both nondifferentiated and nerve growth factor (NGF)-differentiated PC-12 cells. When PC-12 cells are differentiated, they appeared to be even more sensitive to cytotoxicity of nanoparticles such as CB 10 nm (10–100 µg/mL), CB 100 nm (10–100 µg/mL), and CdSe (1–10 µg/mL).
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Affiliation(s)
- Stephen F Larner
- Department of Neuroscience, University of Florida, Gainesville, FL, USA
| | - Jonathan Wang
- Department of Neuroscience, University of Florida, Gainesville, FL, USA.,Program for Neurotrauma, Neuroproteomics & Biomarkers Research, University of Florida, Gainesville, FL, USA.,Department of Psychiatry, University of Florida, Gainesville, FL, USA.,Department of Chemistry, University of Florida, Gainesville, FL, USA
| | - Jared Goodman
- Program for Neurotrauma, Neuroproteomics & Biomarkers Research, University of Florida, Gainesville, FL, USA.,Department of Psychiatry, University of Florida, Gainesville, FL, USA
| | | | - Meiguo Xin
- The Department of Life Science and Technology, Foshan University, Foshan City, Guangdong Province, China
| | - Kevin K W Wang
- Department of Neuroscience, University of Florida, Gainesville, FL, USA
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20
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Yoshioka Y, Kuroda E, Hirai T, Tsutsumi Y, Ishii KJ. Allergic Responses Induced by the Immunomodulatory Effects of Nanomaterials upon Skin Exposure. Front Immunol 2017; 8:169. [PMID: 28261221 PMCID: PMC5311046 DOI: 10.3389/fimmu.2017.00169] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/02/2017] [Indexed: 01/13/2023] Open
Abstract
Over the past decade, a vast array of nanomaterials has been created through the development of nanotechnology. With the increasing application of these nanomaterials in various fields, such as foods, cosmetics, and medicines, there has been concern about their safety, that is, nanotoxicity. Therefore, there is an urgent need to collect information about the biological effects of nanomaterials so that we can exploit their potential benefits and design safer nanomaterials, while avoiding nanotoxicity as a result of inhalation or skin exposure. In particular, the immunomodulating effect of nanomaterials is one of most interesting aspects of nanotoxicity. However, the immunomodulating effects of nanomaterials through skin exposure have not been adequately discussed compared with the effects of inhalation exposure, because skin penetration by nanomaterials is thought to be extremely low under normal conditions. On the other hand, the immunomodulatory effects of nanomaterials via skin may cause severe problems for people with impaired skin barrier function, because some nanomaterials could penetrate the deep layers of their allergic or damaged skin. In addition, some studies, including ours, have shown that nanomaterials could exhibit significant immunomodulating effects even if they do not penetrate the skin. In this review, we summarize our current knowledge of the allergic responses induced by nanomaterials upon skin exposure. First, we discuss nanomaterial penetration of the intact or impaired skin barrier. Next, we describe the immunomodulating effects of nanomaterials, focusing on the sensitization potential of nanomaterials and the effects of co-exposure of nanomaterials with substances such as chemical sensitizers or allergens, on the onset of allergy, following skin exposure. Finally, we discuss the potential mechanisms underlying the immunomodulating effects of nanomaterials by describing the involvement of the protein corona in the interaction of nanomaterials with biological components and by presenting recent data about the adjuvant effects of well-characterized particle adjuvant, aluminum salt, as an example of immunomodulatory particulate.
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Affiliation(s)
- Yasuo Yoshioka
- Vaccine Creation Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan; BIKEN Center for Innovative Vaccine Research and Development, The Research Foundation for Microbial Diseases of Osaka University, Suita, Osaka, Japan; Laboratory of Nano-Design for Innovative Drug Development, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan; The Center for Advanced Medical Engineering and Informatics, Osaka University, Suita, Osaka, Japan
| | - Etsushi Kuroda
- Laboratory of Vaccine Science, Immunology Frontier Research Center, World Premier International Research Center, Osaka University , Suita, Osaka , Japan
| | - Toshiro Hirai
- Department of Dermatology and Immunology, University of Pittsburgh , Pittsburgh, PA , USA
| | - Yasuo Tsutsumi
- The Center for Advanced Medical Engineering and Informatics, Osaka University, Suita, Osaka, Japan; Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka, Japan
| | - Ken J Ishii
- Laboratory of Vaccine Science, Immunology Frontier Research Center, World Premier International Research Center, Osaka University, Suita, Osaka, Japan; Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki, Osaka, Japan
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21
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Dinali R, Ebrahiminezhad A, Manley-Harris M, Ghasemi Y, Berenjian A. Iron oxide nanoparticles in modern microbiology and biotechnology. Crit Rev Microbiol 2017; 43:493-507. [DOI: 10.1080/1040841x.2016.1267708] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ranmadugala Dinali
- Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand
| | - Alireza Ebrahiminezhad
- Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand
- Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Younes Ghasemi
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Aydin Berenjian
- Faculty of Science and Engineering, University of Waikato, Hamilton, New Zealand
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22
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Silver Nanoparticles Affect Functional Bioenergetic Traits in the Invasive Red Sea Mussel Brachidontes pharaonis. BIOMED RESEARCH INTERNATIONAL 2016; 2016:1872351. [PMID: 27800488 PMCID: PMC5069385 DOI: 10.1155/2016/1872351] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Accepted: 06/22/2016] [Indexed: 11/18/2022]
Abstract
We investigated the functional trait responses to 5 nm metallic silver nanoparticle (AgNPs) exposure in the Lessepsian-entry bivalve B. pharaonis. Respiration rate (oxygen consumption), heartbeat rate, and absorption efficiency were evaluated across an 8-day exposure period in mesocosmal conditions. Basal reference values from not-exposed specimens were statistically compared with those obtained from animals treated with three sublethal nanoparticle concentrations (2 μg L−1, 20 μg L−1, and 40 μg L−1). Our data showed statistically significant effects on the average respiration rate of B. pharaonis. Moreover, complex nonlinear dynamics were observed as a function of the concentration level and time. Heartbeat rates largely increased with no acclimation in animals exposed to the two highest levels with similar temporal dynamics. Eventually, a decreasing trend for absorption efficiency might indicate energetic constraints. In general, these data support the possible impact of engineered nanomaterials in marine environments and support the relevance of functional trait assessment in present and future ecotoxicological studies.
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23
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Hirai T, Yoshioka Y, Izumi N, Ichihashi KI, Handa T, Nishijima N, Uemura E, Sagami KI, Takahashi H, Yamaguchi M, Nagano K, Mukai Y, Kamada H, Tsunoda SI, Ishii KJ, Higashisaka K, Tsutsumi Y. Metal nanoparticles in the presence of lipopolysaccharides trigger the onset of metal allergy in mice. NATURE NANOTECHNOLOGY 2016; 11:808-16. [PMID: 27240418 DOI: 10.1038/nnano.2016.88] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Accepted: 04/27/2016] [Indexed: 05/07/2023]
Abstract
Many people suffer from metal allergy, and the recently demonstrated presence of naturally occurring metal nanoparticles in our environment could present a new candidate for inducing metal allergy. Here, we show that mice pretreated with silver nanoparticles (nAg) and lipopolysaccharides, but not with the silver ions that are thought to cause allergies, developed allergic inflammation in response to the silver. nAg-induced acquired immune responses depended on CD4(+) T cells and elicited IL-17A-mediated inflammation, similar to that observed in human metal allergy. Nickel nanoparticles also caused sensitization in the mice, whereas gold and silica nanoparticles, which are minimally ionizable, did not. Quantitative analysis of the silver distribution suggested that small nAg (≤10 nm) transferred to the draining lymph node and released ions more readily than large nAg (>10 nm). These results suggest that metal nanoparticles served as ion carriers to enable metal sensitization. Our data demonstrate a potentially new trigger for metal allergy.
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Affiliation(s)
- Toshiro Hirai
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasuo Yoshioka
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Vaccine Creation Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
- BIKEN Center for Innovative Vaccine Research and Development, The Research Foundation for Microbial Diseases of Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Natsumi Izumi
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ko-Ichi Ichihashi
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takayuki Handa
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Nobuo Nishijima
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Eiichiro Uemura
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ko-Ichi Sagami
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Hideki Takahashi
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Vaccine Creation Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases, Osaka University, 3-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Manami Yamaguchi
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kazuya Nagano
- Laboratory of Biopharmaceutical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
| | - Yohei Mukai
- Laboratory of Innovative Antibody Engineering and Design, Center for Drug Innovation and Screening, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
| | - Haruhiko Kamada
- Laboratory of Biopharmaceutical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Shin-Ichi Tsunoda
- Laboratory of Biopharmaceutical Research, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Ken J Ishii
- Laboratory of Adjuvant Innovation, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
- Laboratory of Vaccine Science, Immunology Frontier Research Center, World Premier International Research Center, Osaka University, 3-1 Suita, Osaka 565-0871, Japan
| | - Kazuma Higashisaka
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yasuo Tsutsumi
- Laboratory of Toxicology and Safety Science, Graduate School of Pharmaceutical Sciences, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
- Laboratory of Innovative Antibody Engineering and Design, Center for Drug Innovation and Screening, National Institutes of Biomedical Innovation, Health and Nutrition, 7-6-8 Saitoasagi, Ibaraki, Osaka 567-0085, Japan
- The Center for Advanced Medical Engineering and Informatics, Osaka University, 1-6 Yamadaoka, Suita, Osaka 565-0871, Japan
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24
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Judy JD, Kirby JK, McLaughlin MJ, McNear D, Bertsch PM. Symbiosis between nitrogen-fixing bacteria and Medicago truncatula is not significantly affected by silver and silver sulfide nanomaterials. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2016; 214:731-736. [PMID: 27149150 DOI: 10.1016/j.envpol.2016.04.078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 04/21/2016] [Accepted: 04/21/2016] [Indexed: 06/05/2023]
Abstract
Silver (Ag) engineered nanomaterials (ENMs) are being released into waste streams and are being discharged, largely as Ag2S aged-ENMs (a-ENMs), into agroecosystems receiving biosolids amendments. Recent research has demonstrated that biosolids containing an environmentally relevant mixture of ZnO, TiO2, and Ag ENMs and their transformation products, including Ag2S a-ENMs, disrupted the symbiosis between nitrogen-fixing bacteria and legumes. However, this study was unable to unequivocally determine which ENM or combination of ENMs and a-ENMs was responsible for the observed inhibition. Here, we examined further the effects of polyvinylpyrollidone (PVP) coated pristine Ag ENMs (PVP-Ag), Ag2S a-ENMs, and soluble Ag (as AgSO4) at 1, 10, and 100 mg Ag kg(-1) on the symbiosis between the legume Medicago truncatula and the nitrogen-fixing bacterium, Sinorhizobium melliloti in biosolids-amended soil. Nodulation frequency, nodule function, glutathione reductase production, and biomass were not significantly affected by any of the Ag treatments, even at 100 mg kg(-1), a concentration analogous to a worst-case scenario resulting from long-term, repeated biosolids amendments. Our results provide additional evidence that the disruption of the symbiosis between nitrogen-fixing bacteria and legumes in response to a mixture of ENMs in biosolids-amended soil reported previously may not be attributable to Ag ENMs or their transformation end-products. We anticipate these findings will provide clarity to regulators and industry regarding potential unintended consequences to terrestrial ecosystems resulting from of the use of Ag ENMs in consumer products.
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Affiliation(s)
- Jonathan D Judy
- Commonwealth Science and Industry Research Organization (CSIRO), Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064 South Australia, Australia.
| | - Jason K Kirby
- Commonwealth Science and Industry Research Organization (CSIRO), Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064 South Australia, Australia
| | - Mike J McLaughlin
- Commonwealth Science and Industry Research Organization (CSIRO), Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064 South Australia, Australia
| | - David McNear
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, 40546 Kentucky, United States
| | - Paul M Bertsch
- Department of Plant and Soil Sciences, University of Kentucky, Lexington, 40546 Kentucky, United States; Center for the Environmental Implications for Nanotechnology, Duke University, Durham, 27708 North Carolina, USA; Commonwealth Science and Industry Research Organization (CSIRO), Land and Water, Ecosciences Precinct, 41 Boggo Road, Dutton Park, 4102, Queensland, Australia
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25
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Huang C, Liu S, Li R, Sun F, Zhou Y, Yu G. Spectroscopic Evidence of the Improvement of Reactive Iron Mineral Content in Red Soil by Long-Term Application of Swine Manure. PLoS One 2016; 11:e0146364. [PMID: 26752419 PMCID: PMC4713869 DOI: 10.1371/journal.pone.0146364] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 12/16/2015] [Indexed: 01/27/2023] Open
Abstract
Mineral elements in soil solutions are thought to be the precursor of the formation of reactive minerals, which play an important role in global carbon (C) cycling. However, information regarding the regulation of mineral elements release in soil is scarce. Here, we examined the long-term (i.e., 23 yrs) effects of fertilisation practices on Fe minerals in a red soil in Southern China. The results from chemical analysis and Fourier-transform infrared spectroscopy showed that long-term swine manure (M) treatment released greater amounts of minerals into soil solutions than chemical fertilisers (NPK) treatment, and Fe played a dominant role in the preservation of dissolved organic C. Furthermore, Fe K-edge X-ray absorption near-edge fine structure spectroscopy demonstrated that reactive Fe minerals were mainly composed of less crystalline ferrihydrite in the M-treated soil and more crystalline goethite in the NPK-treated soil. In conclusion, this study reported spectroscopic evidence of the improvement of reactive Femineral content in the M-treated soil colloids when compared to NPK-treated soil colloids.
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Affiliation(s)
- Chichao Huang
- National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Sha Liu
- National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Ruizhi Li
- National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Fusheng Sun
- National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, PR China
- * E-mail: (GY); (FS)
| | - Ying Zhou
- Shanghai Institute of Measurement and Testing Technology, Shanghai 201203, China
| | - Guanghui Yu
- National Engineering Research Center for Organic-based Fertilizers, Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource Utilization, Jiangsu Provincial Key Lab for Organic Solid Waste Utilization, Nanjing Agricultural University, Nanjing 210095, PR China
- * E-mail: (GY); (FS)
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26
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Potential Hazards of Skin Exposure to Nanoparticles. CURRENT TOPICS IN ENVIRONMENTAL HEALTH AND PREVENTIVE MEDICINE 2016. [DOI: 10.1007/978-4-431-55732-6_6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/08/2022]
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27
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Judy JD, Kirby JK, Creamer C, McLaughlin MJ, Fiebiger C, Wright C, Cavagnaro TR, Bertsch PM. Effects of silver sulfide nanomaterials on mycorrhizal colonization of tomato plants and soil microbial communities in biosolid-amended soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2015; 206:256-263. [PMID: 26196315 DOI: 10.1016/j.envpol.2015.07.002] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 05/23/2023]
Abstract
We investigated effects of Ag2S engineered nanomaterials (ENMs), polyvinylpyrrolidone (PVP) coated Ag ENMs (PVP-Ag), and Ag(+) on arbuscular mycorrhizal fungi (AMF), their colonization of tomato (Solanum lycopersicum), and overall microbial community structure in biosolids-amended soil. Concentration-dependent uptake was measured in all treatments. Plants exposed to 100 mg kg(-1) PVP-Ag ENMs and 100 mg kg(-1) Ag(+) exhibited reduced biomass and greatly reduced mycorrhizal colonization. Bacteria, actinomycetes and fungi were inhibited by all treatment classes, with the largest reductions measured in 100 mg kg(-1) PVP-Ag ENMs and 100 mg kg(-1) Ag(+). Overall, Ag2S ENMs were less toxic to plants, less disruptive to plant-mycorrhizal symbiosis, and less inhibitory to the soil microbial community than PVP-Ag ENMs or Ag(+). However, significant effects were observed at 1 mg kg(-1) Ag2S ENMs, suggesting that the potential exists for microbial communities and the ecosystem services they provide to be disrupted by environmentally relevant concentrations of Ag2S ENMs.
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Affiliation(s)
- Jonathan D Judy
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia.
| | - Jason K Kirby
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia
| | - Courtney Creamer
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Agriculture Flagship, Sustaining Agriculture Soil and Landscapes Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia
| | - Mike J McLaughlin
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia
| | - Cathy Fiebiger
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia
| | - Claire Wright
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, Environmental Contaminant Mitigation and Technologies Research Program, Waite Campus, Waite Road, Urrbrae, 5064, South Australia, Australia
| | - Timothy R Cavagnaro
- School of Agriculture, Food and Wine, University of Adelaide, Waite Campus, PMB 1, Glen Osmond, 5064, South Australia, Australia
| | - Paul M Bertsch
- Commonwealth Scientific and Industrial Research Organization (CSIRO), Land and Water Flagship, 41 Boggo Road, Ecosciences Precinct, Dutton Park, 4102, Queensland, Australia; Center for the Environmental Implications for Nanotechnology, Duke University, Durham, 27708, NC, USA; Department of Plant and Soil Sciences, University of Kentucky, Lexington, 40546, KY, United States
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28
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Gorka DE, Osterberg JS, Gwin CA, Colman BP, Meyer JN, Bernhardt ES, Gunsch CK, DiGulio RT, Liu J. Reducing Environmental Toxicity of Silver Nanoparticles through Shape Control. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:10093-10098. [PMID: 26146787 DOI: 10.1021/acs.est.5b01711] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The use of antibacterial silver nanomaterials in consumer products ranging from textiles to toys has given rise to concerns over their environmental toxicity. These materials, primarily nanoparticles, have been shown to be toxic to a wide range of organisms; thus methods and materials that reduce their environmental toxicity while retaining their useful antibacterial properties can potentially solve this problem. Here we demonstrate that silver nanocubes display a lower toxicity toward the model plant species Lolium multiflorum while showing similar toxicity toward other environmentally relevant and model organisms (Danio rerio and Caenorhabditis elegans) and bacterial species (Esherichia coli, Bacillus cereus, and Pseudomonas aeruginosa) compared to quasi-spherical silver nanoparticles and silver nanowires. More specifically, in the L. multiflorum experiments, the roots of silver nanocube treated plants were 5.3% shorter than the control, while silver nanoparticle treated plant roots were 39.6% shorter than the control. The findings here could assist in the future development of new antibacterial products that cause less environmental toxicity after their intended use.
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Affiliation(s)
- Danielle E Gorka
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ‡Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
| | - Joshua S Osterberg
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- §Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States
| | - Carley A Gwin
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ∥Department of Civil and Environmental Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Benjamin P Colman
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ⊥Department of Biology, Duke University, Durham, North Carolina 27708, United States
| | - Joel N Meyer
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- §Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States
| | - Emily S Bernhardt
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ⊥Department of Biology, Duke University, Durham, North Carolina 27708, United States
| | - Claudia K Gunsch
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ∥Department of Civil and Environmental Engineering, Duke University, Durham, North Carolina 27708, United States
| | - Richard T DiGulio
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- §Nicholas School of the Environment, Duke University, Durham, North Carolina 27708, United States
| | - Jie Liu
- †Center for the Environmental Implications of NanoTechnology (CEINT), Duke University, P.O Box 90287, Durham, North Carolina 27708, United States
- ‡Department of Chemistry, Duke University, Durham, North Carolina 27708, United States
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29
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Tan ZQ, Liu JF, Guo XR, Yin YG, Byeon SK, Moon MH, Jiang GB. Toward Full Spectrum Speciation of Silver Nanoparticles and Ionic Silver by On-Line Coupling of Hollow Fiber Flow Field-Flow Fractionation and Minicolumn Concentration with Multiple Detectors. Anal Chem 2015. [DOI: 10.1021/acs.analchem.5b01827] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Zhi-Qiang Tan
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jing-Fu Liu
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Institute
of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Xiao-Ru Guo
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Yong-Guang Yin
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Seul Kee Byeon
- Department
of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Myeong Hee Moon
- Department
of Chemistry, Yonsei University, Seoul 120-749, Korea
| | - Gui-Bin Jiang
- State
Key Laboratory of Environmental Chemistry and Ecotoxicology, Research
Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
- Institute
of Environment and Health, Jianghan University, Wuhan 430056, China
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30
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Bour A, Mouchet F, Cadarsi S, Silvestre J, Verneuil L, Baqué D, Chauvet E, Bonzom JM, Pagnout C, Clivot H, Fourquaux I, Tella M, Auffan M, Gauthier L, Pinelli E. Toxicity of CeO₂ nanoparticles on a freshwater experimental trophic chain: A study in environmentally relevant conditions through the use of mesocosms. Nanotoxicology 2015; 10:245-55. [PMID: 26152687 DOI: 10.3109/17435390.2015.1053422] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The toxicity of CeO2 NPs on an experimental freshwater ecosystem was studied in mesocosm, with a focus being placed on the higher trophic level, i.e. the carnivorous amphibian species Pleurodeles waltl. The system comprised species at three trophic levels: (i) bacteria, fungi and diatoms, (ii) Chironomus riparius larvae as primary consumers and (iii) Pleurodeles larvae as secondary consumers. NP contamination consisted of repeated additions of CeO2 NPs over 4 weeks, to obtain a final concentration of 1 mg/L. NPs were found to settle and accumulate in the sediment. No effects were observed on litter decomposition or associated fungal biomass. Changes in bacterial communities were observed from the third week of NP contamination. Morphological changes in CeO2 NPs were observed at the end of the experiment. No toxicity was recorded in chironomids, despite substantial NP accumulation (265.8 ± 14.1 mg Ce/kg). Mortality (35.3 ± 6.8%) and a mean Ce concentration of 13.5 ± 3.9 mg/kg were reported for Pleurodeles. Parallel experiments were performed on Pleurodeles to determine toxicity pathways: no toxicity was observed by direct or dietary exposures, although Ce concentrations almost reached 100 mg/kg. In view of these results, various toxicity mechanisms are proposed and discussed. The toxicity observed on Pleurodeles in mesocosm may be indirect, due to microorganism's interaction with CeO2 NPs, or NP dissolution could have occurred in mesocosm due to the structural complexity of the biological environment, resulting in toxicity to Pleurodeles. This study strongly supports the importance of ecotoxicological assessment of NPs under environmentally relevant conditions, using complex biological systems.
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Affiliation(s)
- Agathe Bour
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - Florence Mouchet
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - Stéphanie Cadarsi
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - Jérôme Silvestre
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - Laurent Verneuil
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - David Baqué
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France
| | - Eric Chauvet
- c CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , Toulouse , France
| | - Jean-Marc Bonzom
- b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France .,d Laboratoire de Radioécologie et d'Ecotoxicologie , IRSN (Institut de Radioprotection et de Sûreté Nucléaire), DEI/SECRE , Cadarache , France
| | - Christophe Pagnout
- b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France .,e CNRS, Université de Lorraine, LIEC (Laboratoire Interdisciplinaire des Environnements Continentaux) UMR 7360, Metz, France
| | - Hugues Clivot
- b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France .,e CNRS, Université de Lorraine, LIEC (Laboratoire Interdisciplinaire des Environnements Continentaux) UMR 7360, Metz, France
| | - Isabelle Fourquaux
- f CMEAB (Centre de Microscopie Electronique Appliqué à la Biologie), Université Paul Sabatier, Faculté de Médecine Rangueil , Toulouse , France , and
| | - Marie Tella
- b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France .,g CNRS, Université d'Aix-Marseille, CEREGE UMR 7330 , Aix-en-Provence , France
| | - Mélanie Auffan
- b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France .,g CNRS, Université d'Aix-Marseille, CEREGE UMR 7330 , Aix-en-Provence , France
| | - Laury Gauthier
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
| | - Eric Pinelli
- a CNRS, Université de Toulouse, INP, UPS, EcoLab (Laboratoire d'écologie fonctionnelle et environnement) UMR 5245 , ENSAT, Avenue de l'Agrobiopole , Castanet Tolosan , France .,b International Consortium for the Environmental Implications of Nanotechnology (iCEINT) , Aix-en-Provence , France
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Exposure medium: key in identifying free Ag+ as the exclusive species of silver nanoparticles with acute toxicity to Daphnia magna. Sci Rep 2015; 5:9674. [PMID: 25858866 PMCID: PMC4392358 DOI: 10.1038/srep09674] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2014] [Accepted: 03/16/2015] [Indexed: 02/07/2023] Open
Abstract
It is still not very clear what roles the various Ag species play in the toxicity of silver nanoparticles (AgNPs). In this study, we found that traditional exposure media result in uncontrollable but consistent physicochemical transformation of AgNPs, causing artifacts in determination of median lethal concentration (LC50) and hindering the identification of Ag species responsible for the acute toxicity of AgNPs to Daphnia magna. This obstacle was overcome by using 8 h exposure in 0.1 mmol L(-1) NaNO3 medium, in which we measured the 8-h LC50 of seven AgNPs with different sizes and coatings, and determined the concentrations of various Ag species. The LC50 as free Ag(+) of the seven AgNPs (0.37-0.44 μg L(-1)) agreed very well with that of AgNO3 (0.40 μg L(-1)), and showed the lowest value compared to that as total Ag, total Ag(+), and dissolved Ag, demonstrating free Ag(+) is exclusively responsible for the acute toxicity of AgNPs to D. magna, while other Ag species in AgNPs have no contribution to the acute toxicity. Our results demonstrated the great importance of developing appropriate exposure media for evaluating risk of nanomaterials.
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Chai H, Yao J, Sun J, Zhang C, Liu W, Zhu M, Ceccanti B. The effect of metal oxide nanoparticles on functional bacteria and metabolic profiles in agricultural soil. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2015; 94:490-5. [PMID: 25636440 DOI: 10.1007/s00128-015-1485-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 01/26/2015] [Indexed: 05/16/2023]
Abstract
A significant knowledge gap in nanotechnology is the absence of standardized protocols for examining the effect of engineered nanoparticles on soil microorganisms. In this study, agricultural soil was exposed to ZnO, SiO2, TiO2 and CeO2 nanoparticles at 1 mg g(-1). The toxicity effect was evaluated by thermal metabolism, the abundance of functional bacteria and enzymatic activity. ZnO and CeO2 nanoparticles were observed to hinder thermogenic metabolism, reduce numbers of soil Azotobacter, P-solubilizing and K-solubilizing bacteria and inhibit enzymatic activities. TiO2 nanoparticles reduced the abundance of functional bacteria and enzymatic activity. SiO2 nanoparticles slightly boosted the soil microbial activity. Pearson's correlation analysis showed that thermodynamic parameters had a strong correlation with abundance of functional bacteria and enzymatic activity. These findings demonstrated that the combined approach of monitoring thermal metabolism, functional bacteria and enzymatic activity is feasible for testing the ecotoxicity of nanoparticles on agricultural soil.
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Affiliation(s)
- Hankui Chai
- School of Civil and Environmental Engineering, National "International Cooperation Based on Environment and Energy", University of Science and Technology Beijing, 30 Xueyuan Road, Haidian District, 100083, Beijing, People's Republic of China
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Meisterjahn B, Neubauer E, Von der Kammer F, Hennecke D, Hofmann T. Asymmetrical Flow-Field-Flow Fractionation coupled with inductively coupled plasma mass spectrometry for the analysis of gold nanoparticles in the presence of natural nanoparticles. J Chromatogr A 2014; 1372C:204-211. [PMID: 25465017 DOI: 10.1016/j.chroma.2014.10.093] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 10/06/2014] [Accepted: 10/25/2014] [Indexed: 01/15/2023]
Abstract
Flow-Field-Flow Fractionation (Flow-FFF), coupled with online detection systems, is one of the most promising tools available for the analysis and characterization of engineered nanoparticles (ENPs) in complex matrices. In order to demonstrate the applicability of Flow-FFF for the detection, quantification, and characterization of engineered gold nanoparticles (AuNPs), model dispersions were prepared containing AuNPs with diameters of 30 or 100nm, natural nanoparticles (NNPs) extracted from a soil sample, and different concentrations of natural organic matter (NOM), which were then used to investigate interactions between the AuNPs and the NNPs. It could be shown that light scattering detection can be used to evaluate the fractionation performance of the pure NNPs, but not the fractionation performance of the mixed samples that also contained AuNPs because of specific interactions between the AuNPs and the laser light. A combination of detectors (i.e. light absorbance and inductively coupled plasma mass spectrometry (ICP-MS)) was found to be useful for differentiating between heteroaggregation and homoaggregation of the nanoparticles (NPs). The addition of NOM to samples containing 30nm AuNPs stabilized the AuNPs without affecting the NP size distribution. However, fractograms for samples with no added NOM showed a change in the size distribution, suggesting interactions between the AuNPs and NNPs. This interpretation was supported by unchanged light absorption wavelengths for the AuNPs. In contrast, results for samples containing 100nm AuNPs were inconclusive with respect to recovery and size distributions because of problems with the separation system that probably related to the size and high density of these nanoparticles, highlighting the need for extensive method optimization strategies, even for nanoparticles of the same material but different sizes.
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Affiliation(s)
- Boris Meisterjahn
- Department of Environmental Geosciences, University of Vienna, Althanstr. 14 UZA II, 1090 Vienna, Austria; Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Auf dem Aberg 1, 57392 Schmallenberg, Germany
| | - Elisabeth Neubauer
- Department of Environmental Geosciences, University of Vienna, Althanstr. 14 UZA II, 1090 Vienna, Austria
| | - Frank Von der Kammer
- Department of Environmental Geosciences, University of Vienna, Althanstr. 14 UZA II, 1090 Vienna, Austria.
| | - Dieter Hennecke
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Auf dem Aberg 1, 57392 Schmallenberg, Germany
| | - Thilo Hofmann
- Department of Environmental Geosciences, University of Vienna, Althanstr. 14 UZA II, 1090 Vienna, Austria.
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Yin Y, Shen M, Zhou X, Yu S, Chao J, Liu J, Jiang G. Photoreduction and stabilization capability of molecular weight fractionated natural organic matter in transformation of silver ion to metallic nanoparticle. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2014; 48:9366-9373. [PMID: 25050868 DOI: 10.1021/es502025e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Photoinduced reduction of silver ion (Ag(+)) to silver nanoparticles (AgNPs) by dissolved organic matter (DOM) plays a crucial role in the transformation and transport of engineered AgNPs and Ag(+) in aquatic environments. DOM is a mixture of natural polymers with wide molecular weight (MW) distribution, and the roles of specific components of DOM in the photoreduction of Ag(+) to AgNPs are still not understood. In this study, MW fractionated natural organic matter (Mf-NOM) were investigated for their roles on the photoreduction process and stabilization of the formed AgNPs. This photoinduced reduction process depends highly on pH, concentration of Ag(+) and NOM, light quality, and the MW of Mf-NOM. Monochromatic radiation and light attenuation correction suggested that the difference of Mf-NOM on reduction was mainly ascribed to the differential light attenuation of Mf-NOM rather than the "real" reductive ability. More importantly, compared with low MW fractions, the high MW Mf-NOMs exhibit drastically higher capability in stabilizing the photosynthesized AgNPs against Ca(2+)-induced aggregation. This finding is important for a better understanding of the differential roles of Mf-NOM in the transformation and transport of Ag(+) and engineered AgNPs in DOM-rich surface water.
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Affiliation(s)
- Yongguang Yin
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , Beijing 100085, China
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Kwon D, Nho HW, Yoon TH. X-ray and electron microscopy studies on the biodistribution and biomodification of iron oxide nanoparticles in Daphnia magna. Colloids Surf B Biointerfaces 2014; 122:384-389. [PMID: 25086306 DOI: 10.1016/j.colsurfb.2014.07.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 06/09/2014] [Accepted: 07/12/2014] [Indexed: 11/16/2022]
Abstract
Biodistribution and biomodification of iron oxide (Fe3O4 and α-Fe2O3) nanoparticles (NPs) in a well-known toxicity test organism, Daphnia magna (D. magna), were investigated using transmission electron microscopy (TEM) and scanning transmission X-ray microscopy (STXM). In addition to the morphological changes in the gut tissues of D. magna, biodistribution and biomodification of iron oxide NPs in the digestive tract of D. magna were also monitored in this study. Upon exposures to both iron oxide NPs, unique morphological changes (e.g., irregular shaped microvilli, epithelial cell protrusion, and dilatation of cytoplasmic inclusion) in the gut tissues of D. magna were observed along with bacterial colonization of the gut lumen. However, despite their heavy accumulations in the digesitive tract, TEM and STXM images confirmed us that both Fe3O4 and α-Fe2O3 NPs were not penetrating into the gut tissues of D. magna. Moreover, for the Fe3O4 NPs in direct contact with the gut microvilli of D. magna, slight but significant spectral changes were observed in their Fe L-edge X-ray absorption near edge structure (XANES) spectra, which indicated that there were biomodifications of Fe3O4 NPs, probably involving oxidative dissolution of Fe3O4 NPs followed by rapid precipitation of ferric oxide or hydroxide. However, no significant changes were observed in the Fe L-edge XANES spectra of the α-Fe2O3 NPs present in the gut lumen of D. magna. These X-ray and electron microscopic observations confirmed us that, despite similarities in core sizes and chemical compositions, NPs with different crystalline phase and dissolution rates can interact quite differently with their local environment, may result in different biodistribution and cause completely dissimilar toxicities.
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Affiliation(s)
- Dongwook Kwon
- Laboratory of Nanoscale Characterization & Environmental Chemistry, Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 133-791, Republic of Korea
| | - Hyun Woo Nho
- Laboratory of Nanoscale Characterization & Environmental Chemistry, Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 133-791, Republic of Korea
| | - Tae Hyun Yoon
- Laboratory of Nanoscale Characterization & Environmental Chemistry, Department of Chemistry, College of Natural Sciences, Hanyang University, Seoul 133-791, Republic of Korea.
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Borcherding J, Baltrusaitis J, Chen H, Stebounova L, Wu CM, Rubasinghege G, Mudunkotuwa IA, Caraballo JC, Zabner J, Grassian VH, Comellas AP. Iron oxide nanoparticles induce Pseudomonas aeruginosa growth, induce biofilm formation, and inhibit antimicrobial peptide function. ENVIRONMENTAL SCIENCE. NANO 2014; 1:123-132. [PMID: 25221673 PMCID: PMC4158920 DOI: 10.1039/c3en00029j] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Given the increased use of iron-containing nanoparticles in a number of applications, it is important to understand any effects that iron-containing nanoparticles can have on the environment and human health. Since iron concentrations are extremely low in body fluids, there is potential that iron-containing nanoparticles may influence the ability of bacteria to scavenge iron for growth, affect virulence and inhibit antimicrobial peptide (AMP) function. In this study, Pseudomonas aeruginosa (PA01) and AMPs were exposed to iron oxide nanoparticles, hematite (α-Fe2O3), of different sizes ranging from 2 to 540 nm (2 ± 1, 43 ± 6, 85 ± 25 and 540 ± 90 nm) in diameter. Here we show that the greatest effect on bacterial growth, biofilm formation, and AMP function impairment is found when exposed to the smallest particles. These results are attributed in large part to enhanced dissolution observed for the smallest particles and an increase in the amount of bioavailable iron. Furthermore, AMP function can be additionally impaired by adsorption onto nanoparticle surfaces. In particular, lysozyme readily adsorbs onto the nanoparticle surface which can lead to loss of peptide activity. Thus, this current study shows that co-exposure of nanoparticles and known pathogens can impact host innate immunity. Therefore, it is important that future studies be designed to further understand these types of impacts.
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Affiliation(s)
| | | | - Haihan Chen
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA
| | | | - Chia-Ming Wu
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA
| | | | | | | | - Joseph Zabner
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Vicki H. Grassian
- Department of Chemistry, University of Iowa, Iowa City, IA 52242, USA
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Yu SJ, Yin YG, Chao JB, Shen MH, Liu JF. Highly dynamic PVP-coated silver nanoparticles in aquatic environments: chemical and morphology change induced by oxidation of Ag(0) and reduction of Ag(+). ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 48:403-411. [PMID: 24328224 DOI: 10.1021/es404334a] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The fast growing and abundant use of silver nanoparticles (AgNPs) in commercial products alerts us to be cautious of their unknown health and environmental risks. Because of the inherent redox instability of silver, AgNPs are highly dynamic in the aquatic system, and the cycle of chemical oxidation of AgNPs to release Ag(+) and reconstitution to form AgNPs is expected to occur in aquatic environments. This study investigated how inevitable environmentally relevant factors like sunlight, dissolved organic matter (DOM), pH, Ca(2+)/Mg(2+), Cl(-), and S(2-) individually or in combination affect the chemical transformation of AgNPs. It was demonstrated that simulated sunlight induced the aggregation of AgNPs, causing particle fusion or self-assembly to form larger structures and aggregates. Meanwhile, AgNPs were significantly stabilized by DOM, indicating that AgNPs may exist as single particles and be suspended in natural water for a long time or delivered far distances. Dissolution (ion release) kinetics of AgNPs in sunlit DOM-rich water showed that dissolved Ag concentration increased gradually first and then suddenly decreased with external light irradiation, along with the regeneration of new tiny AgNPs. pH variation and addition of Ca(2+) and Mg(2+) within environmental levels did not affect the tendency, showing that this phenomenon was general in real aquatic systems. Given that a great number of studies have proven the toxicity of dissolved Ag (commonly regarded as the source of AgNP toxicity) to many aquatic organisms, our finding that the effect of DOM and sunlight on AgNP dissolution can regulate AgNP toxicity under these conditions is important. The fact that the release of Ag(+) and regeneration of AgNPs could both happen in sunlit DOM-rich water implies that previous results of toxicity studies gained by focusing on the original nature of AgNPs should be reconsidered and highlights the necessity to monitor the fate and toxicity of AgNPs under more environmentally relevant conditions.
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Affiliation(s)
- Su-Juan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences , P.O. Box 2871, Beijing 100085, China
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Wang Z, Von Dem Bussche A, Kabadi PK, Kane AB, Hurt RH. Biological and environmental transformations of copper-based nanomaterials. ACS NANO 2013; 7:8715-27. [PMID: 24032665 PMCID: PMC3894052 DOI: 10.1021/nn403080y] [Citation(s) in RCA: 157] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Copper-based nanoparticles are an important class of materials with applications as catalysts, conductive inks, and antimicrobial agents. Environmental and safety issues are particularly important for copper-based nanomaterials because of their potential large-scale use and their high redox activity and toxicity reported from in vitro studies. Elemental nanocopper oxidizes readily upon atmospheric exposure during storage and use, so copper oxides are highly relevant phases to consider in studies of environmental and health impacts. Here we show that copper oxide nanoparticles undergo profound chemical transformations under conditions relevant to living systems and the natural environment. Copper oxide nanoparticle (CuO-NP) dissolution occurs at lysosomal pH (4-5), but not at neutral pH in pure water. Despite the near-neutral pH of cell culture medium, CuO-NPs undergo significant dissolution in media over time scales relevant to toxicity testing because of ligand-assisted ion release, in which amino acid complexation is an important contributor. Electron paramagnetic resonance (EPR) spectroscopy shows that dissolved copper in association with CuO-NPs are the primary redox-active species. CuO-NPs also undergo sulfidation by a dissolution-reprecipitation mechanism, and the new sulfide surfaces act as catalysts for sulfide oxidation. Copper sulfide NPs are found to be much less cytotoxic than CuO-NPs, which is consistent with the very low solubility of CuS. Despite this low solubility of CuS, EPR studies show that sulfidated CuO continues to generate some ROS activity due to the release of free copper by H2O2 oxidation during the Fenton-chemistry-based EPR assay. While sulfidation can serve as a natural detoxification process for nanosilver and other chalcophile metals, our results suggest that sulfidation may not fully and permanently detoxify copper in biological or environmental compartments that contain reactive oxygen species.
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Affiliation(s)
- Zhongying Wang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - Annette Von Dem Bussche
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912
| | - Pranita K. Kabadi
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912
| | - Agnes B. Kane
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912
- Institute for Molecular and Nanoscale Innovation, Brown University, Providence, Rhode Island 02912
| | - Robert H. Hurt
- School of Engineering, Brown University, Providence, Rhode Island 02912
- Institute for Molecular and Nanoscale Innovation, Brown University, Providence, Rhode Island 02912
- Address correspondence to
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Braunschweig J, Bosch J, Meckenstock RU. Iron oxide nanoparticles in geomicrobiology: from biogeochemistry to bioremediation. N Biotechnol 2013; 30:793-802. [DOI: 10.1016/j.nbt.2013.03.008] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 02/11/2013] [Accepted: 03/23/2013] [Indexed: 10/27/2022]
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Baer DR, Engelhard MH, Johnson GE, Laskin J, Lai J, Mueller K, Munusamy P, Thevuthasan S, Wang H, Washton N, Elder A, Baisch BL, Karakoti A, Kuchibhatla SVNT, Moon D. Surface characterization of nanomaterials and nanoparticles: Important needs and challenging opportunities. JOURNAL OF VACUUM SCIENCE & TECHNOLOGY. A, VACUUM, SURFACES, AND FILMS : AN OFFICIAL JOURNAL OF THE AMERICAN VACUUM SOCIETY 2013; 31:50820. [PMID: 24482557 PMCID: PMC3869349 DOI: 10.1116/1.4818423] [Citation(s) in RCA: 81] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2013] [Accepted: 07/25/2013] [Indexed: 05/17/2023]
Abstract
This review examines characterization challenges inherently associated with understanding nanomaterials and the roles surface and interface characterization methods can play in meeting some of the challenges. In parts of the research community, there is growing recognition that studies and published reports on the properties and behaviors of nanomaterials often have reported inadequate or incomplete characterization. As a consequence, the true value of the data in these reports is, at best, uncertain. With the increasing importance of nanomaterials in fundamental research and technological applications, it is desirable that researchers from the wide variety of disciplines involved recognize the nature of these often unexpected challenges associated with reproducible synthesis and characterization of nanomaterials, including the difficulties of maintaining desired materials properties during handling and processing due to their dynamic nature. It is equally valuable for researchers to understand how characterization approaches (surface and otherwise) can help to minimize synthesis surprises and to determine how (and how quickly) materials and properties change in different environments. Appropriate application of traditional surface sensitive analysis methods (including x-ray photoelectron and Auger electron spectroscopies, scanning probe microscopy, and secondary ion mass spectroscopy) can provide information that helps address several of the analysis needs. In many circumstances, extensions of traditional data analysis can provide considerably more information than normally obtained from the data collected. Less common or evolving methods with surface selectivity (e.g., some variations of nuclear magnetic resonance, sum frequency generation, and low and medium energy ion scattering) can provide information about surfaces or interfaces in working environments (operando or in situ) or information not provided by more traditional methods. Although these methods may require instrumentation or expertise not generally available, they can be particularly useful in addressing specific questions, and examples of their use in nanomaterial research are presented.
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Affiliation(s)
- Donald R Baer
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Mark H Engelhard
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Grant E Johnson
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Julia Laskin
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Jinfeng Lai
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Karl Mueller
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Prabhakaran Munusamy
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | | | - Hongfei Wang
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Nancy Washton
- Pacific Northwest National Laboratory, EMSL, P.O. Box 999, Richland, Washington 99352
| | - Alison Elder
- Department of Environmental Medicine, University of Rochester, Rochester, New York
| | - Brittany L Baisch
- Department of Environmental Medicine, University of Rochester, Rochester, New York
| | - Ajay Karakoti
- Battelle Science and Technology India, Pune, Maharashtra, India
| | | | - Daewon Moon
- Daegu Gyeongbuk Institute of Science and Technology, Daeju, Korea
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42
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Hou WC, Stuart B, Howes R, Zepp RG. Sunlight-driven reduction of silver ions by natural organic matter: formation and transformation of silver nanoparticles. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2013; 47:7713-7721. [PMID: 23731169 DOI: 10.1021/es400802w] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Photobiogeochemical reactions involving metal species can be a source of naturally occurring nanoscale materials in the aquatic environment. This study demonstrates that, under simulated sunlight exposure, ionic Ag is photoreduced in river water or synthetic natural water samples that contain natural organic matter (NOM), forming Ag nanoparticles (AgNPs) that transform in size and shape and precipitate out upon extended irradiation. We show that the dissolved oxygen concentration does not appear to affect AgNP formation rates, indicating that reactive transients such as superoxide, hydrated electron, and triplet NOM do not play a large role. By varying pH and NOM concentrations and adding competing cations on the AgNP formation, we present three lines of evidence to show that Ag ion photoreduction likely involves ionic Ag binding to NOM. Our work suggests that photochemical reactions involving ionic Ag and NOM can be a source of nanosized Ag in the environment.
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Affiliation(s)
- Wen-Che Hou
- National Research Council Associate, National Exposure Research Laboratory, Ecosystems Research Division, United States Environmental Protection Agency, Athens, Georgia 30605, USA.
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43
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MacPhail RC, Grulke EA, Yokel RA. Assessing nanoparticle risk poses prodigious challenges. WILEY INTERDISCIPLINARY REVIEWS-NANOMEDICINE AND NANOBIOTECHNOLOGY 2013; 5:374-87. [PMID: 23568806 DOI: 10.1002/wnan.1216] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Risk assessment is used both formally and informally to estimate the likelihood of an adverse event occurring, for example, as a consequence of exposure to a hazardous chemical, drug, or other agent. Formal risk assessments in government regulatory agencies have a long history of practice. The precision with which risk can be estimated is inevitably constrained, however, by uncertainties arising from the lack of pertinent data. Developing accurate risk assessments for nanoparticles and nanoparticle-containing products may present further challenges because of the unique properties of the particles, uncertainties about their composition and the populations exposed to them, and how these may change throughout the particle's life cycle. This review introduces the evolving practice of risk assessment followed by some of the uncertainties that need to be addressed to improve our understanding of nanoparticle risks. Given the clarion call for life-cycle assessments of nanoparticles, an unprecedented degree of national and international coordination between scientific organizations, regulatory agencies, and stakeholders will be required to achieve this goal.
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Affiliation(s)
- Robert C MacPhail
- Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA.
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Kwadijk CJAF, Velzeboer I, Koelmans AA. Sorption of perfluorooctane sulfonate to carbon nanotubes in aquatic sediments. CHEMOSPHERE 2013; 90:1631-1636. [PMID: 23041036 DOI: 10.1016/j.chemosphere.2012.08.041] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Revised: 08/10/2012] [Accepted: 08/20/2012] [Indexed: 06/01/2023]
Abstract
To date, sorption of organic compounds to nanomaterials has mainly been studied for the nanomaterial in its pristine state. However, sorption may be different when nanomaterials are buried in sediments. Here, we studied sorption of Perfluorooctane sulfonate (PFOS) to sediment and to sediment with 4% multiwalled carbon nanotubes (MWCNTs), as a function of factors affecting PFOS sorption; aqueous concentration, pH and Ca(2+) concentration. Sorption to MWCNT in the sediment-MWCNT mixtures was assessed by subtracting the contribution of PFOS sorption to sediment-only from PFOS sorption to the total sediment-MWCNT mixture. PFOS Log K(D) values ranged 0.52-1.62 L kg(-1) for sediment and 1.91-2.90 L kg(-1) for MWCNT present in the sediment. The latter values are relatively low, which is attributed to fouling of MWCNT by sediment organic matter. PFOS sorption was near-linear for sediment (Freundlich exponent of 0.92 ± 0.063) but non-linear for MWCNT (Freundlich exponent of 0.66 ± 0.03). Consequently, the impact of MWCNT on sorption in the mixture was larger at low PFOS aqueous concentration. Effects of pH and Ca(2+) on PFOS sorption to MWCNT were statistically significant. We conclude that MWCNT fouling and PFOS concentration dependency are important factors affecting PFOS-MWCNT interactions in sediments.
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Affiliation(s)
- C J A F Kwadijk
- Institute for Marine Resources & Ecosystem Studies, Wageningen UR, 1970 AB IJmuiden, The Netherlands.
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46
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Liu J, Wang Z, Liu FD, Kane AB, Hurt RH. Chemical transformations of nanosilver in biological environments. ACS NANO 2012; 6:9887-99. [PMID: 23046098 PMCID: PMC3508364 DOI: 10.1021/nn303449n] [Citation(s) in RCA: 137] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The widespread use of silver nanoparticles (Ag-NPs) in consumer and medical products provides strong motivation for a careful assessment of their environmental and human health risks. Recent studies have shown that Ag-NPs released to the natural environment undergo profound chemical transformations that can affect silver bioavailability, toxicity, and risk. Less is known about Ag-NP chemical transformations in biological systems, though the medical literature clearly reports that chronic silver ingestion produces argyrial deposits consisting of silver-, sulfur-, and selenium-containing particulate phases. Here we show that Ag-NPs undergo a rich set of biochemical transformations, including accelerated oxidative dissolution in gastric acid, thiol binding and exchange, photoreduction of thiol- or protein-bound silver to secondary zerovalent Ag-NPs, and rapid reactions between silver surfaces and reduced selenium species. Selenide is also observed to rapidly exchange with sulfide in preformed Ag(2)S solid phases. The combined results allow us to propose a conceptual model for Ag-NP transformation pathways in the human body. In this model, argyrial silver deposits are not translocated engineered Ag-NPs, but rather secondary particles formed by partial dissolution in the GI tract followed by ion uptake, systemic circulation as organo-Ag complexes, and immobilization as zerovalent Ag-NPs by photoreduction in light-affected skin regions. The secondary Ag-NPs then undergo detoxifying transformations into sulfides and further into selenides or Se/S mixed phases through exchange reactions. The formation of secondary particles in biological environments implies that Ag-NPs are not only a product of industrial nanotechnology but also have long been present in the human body following exposure to more traditional chemical forms of silver.
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Affiliation(s)
- Jingyu Liu
- Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - Zhongying Wang
- Department of Chemistry, Brown University, Providence, Rhode Island 02912
| | - Frances D. Liu
- School of Engineering, Brown University, Providence, Rhode Island 02912
| | - Agnes B. Kane
- Department of Pathology and Laboratory Medicine, Brown University, Providence, Rhode Island 02912
- Institute for Molecular and Nanoscale Innovation, Brown University, Providence, Rhode Island 02912
| | - Robert H. Hurt
- School of Engineering, Brown University, Providence, Rhode Island 02912
- Institute for Molecular and Nanoscale Innovation, Brown University, Providence, Rhode Island 02912
- Address correspondence to
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47
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Lowry GV, Espinasse BP, Badireddy AR, Richardson CJ, Reinsch BC, Bryant LD, Bone AJ, Deonarine A, Chae S, Therezien M, Colman BP, Hsu-Kim H, Bernhardt ES, Matson CW, Wiesner MR. Long-term transformation and fate of manufactured ag nanoparticles in a simulated large scale freshwater emergent wetland. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:7027-36. [PMID: 22463850 DOI: 10.1021/es204608d] [Citation(s) in RCA: 208] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Transformations and long-term fate of engineered nanomaterials must be measured in realistic complex natural systems to accurately assess the risks that they may pose. Here, we determine the long-term behavior of poly(vinylpyrrolidone)-coated silver nanoparticles (AgNPs) in freshwater mesocosms simulating an emergent wetland environment. AgNPs were either applied to the water column or to the terrestrial soils. The distribution of silver among water, solids, and biota, and Ag speciation in soils and sediment was determined 18 months after dosing. Most (70 wt %) of the added Ag resided in the soils and sediments, and largely remained in the compartment in which they were dosed. However, some movement between soil and sediment was observed. Movement of AgNPs from terrestrial soils to sediments was more facile than from sediments to soils, suggesting that erosion and runoff is a potential pathway for AgNPs to enter waterways. The AgNPs in terrestrial soils were transformed to Ag(2)S (~52%), whereas AgNPs in the subaquatic sediment were present as Ag(2)S (55%) and Ag-sulfhydryl compounds (27%). Despite significant sulfidation of the AgNPs, a fraction of the added Ag resided in the terrestrial plant biomass (~3 wt % for the terrestrially dosed mesocosm), and relatively high body burdens of Ag (0.5-3.3 μg Ag/g wet weight) were found in mosquito fish and chironomids in both mesocosms. Thus, Ag from the NPs remained bioavailable even after partial sulfidation and when water column total Ag concentrations are low (<0.002 mg/L).
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Affiliation(s)
- Gregory V Lowry
- Center for the Environmental Implications of NanoTechnology, Baylor University, Waco, Texas 76798, United States.
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48
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Misra SK, Dybowska A, Berhanu D, Croteau MN, Luoma SN, Boccaccini AR, Valsami-Jones E. Isotopically modified nanoparticles for enhanced detection in bioaccumulation studies. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2012; 46:1216-22. [PMID: 22148182 DOI: 10.1021/es2039757] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
This work presents results on synthesis of isotopically enriched (99% (65)Cu) copper oxide nanoparticles and its application in ecotoxicological studies. (65)CuO nanoparticles were synthesized as spheres (7 nm) and rods (7 × 40 nm). Significant differences were observed between the reactivity and dissolution of spherical and rod shaped nanoparticles. The extreme sensitivity of the stable isotope tracing technique developed in this study allowed determining Cu uptake at exposure concentrations equivalent to background Cu concentrations in freshwater systems (0.2-30 μg/L). Without a tracer, detection of newly accumulated Cu was impossible, even at exposure concentrations surpassing some of the most contaminated water systems (>1 mg/L).
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Affiliation(s)
- Superb K Misra
- Natural History Museum, Dept. of Mineralogy, Cromwell Road, London SW7 5BD, United Kingdom.
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