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Samal D, Khandayataray P, Sravani M, Murthy MK. Silver nanoparticle ecotoxicity and phytoremediation: a critical review of current research and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8400-8428. [PMID: 38182947 DOI: 10.1007/s11356-023-31669-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Silver nanoparticles (AgNPs) are widely used in various industries, including textiles, electronics, and biomedical fields, due to their unique optical, electronic, and antimicrobial properties. However, the extensive use of AgNPs has raised concerns about their potential ecotoxicity and adverse effects on the environment. AgNPs can enter the environment through different pathways, such as wastewater, surface runoff, and soil application and can interact with living organisms through adsorption, ingestion, and accumulation, causing toxicity and harm. The small size, high surface area-to-volume ratio, and ability to generate reactive oxygen species (ROS) make AgNPs particularly toxic. Various bioremediation strategies, such as phytoremediation, have been proposed to mitigate the toxic effects of AgNPs and minimize their impact on the environment. Further research is needed to improve these strategies and ensure their safety and efficacy in different environmental settings.
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Affiliation(s)
- Dibyaranjan Samal
- Department of Biotechnology, Sri Satya Sai University of Technical and Medical Sciences, Sehore, Bhopal, Madhya Pradesh, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, 752057, Odisha, India
| | - Meesala Sravani
- Department of Computer Science and Engineering, GMR Institute of Technology, Rajam, 532127, India
| | - Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab, 140401, India.
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Husain S, Nandi A, Simnani FZ, Saha U, Ghosh A, Sinha A, Sahay A, Samal SK, Panda PK, Verma SK. Emerging Trends in Advanced Translational Applications of Silver Nanoparticles: A Progressing Dawn of Nanotechnology. J Funct Biomater 2023; 14:jfb14010047. [PMID: 36662094 PMCID: PMC9863943 DOI: 10.3390/jfb14010047] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/07/2023] [Accepted: 01/12/2023] [Indexed: 01/19/2023] Open
Abstract
Nanoscience has emerged as a fascinating field of science, with its implementation in multiple applications in the form of nanotechnology. Nanotechnology has recently been more impactful in diverse sectors such as the pharmaceutical industry, agriculture sector, and food market. The peculiar properties which make nanoparticles as an asset are their large surface area and their size, which ranges between 1 and 100 nanometers (nm). Various technologies, such as chemical and biological processes, are being used to synthesize nanoparticles. The green chemistry route has become extremely popular due to its use in the synthesis of nanoparticles. Nanomaterials are versatile and impactful in different day to day applications, resulting in their increased utilization and distribution in human cells, tissues, and organs. Owing to the deployment of nanoparticles at a high demand, the need to produce nanoparticles has raised concerns regarding environmentally friendly processes. These processes are meant to produce nanomaterials with improved physiochemical properties that can have significant uses in the fields of medicine, physics, and biochemistry. Among a plethora of nanomaterials, silver nanoparticles have emerged as the most investigated and used nanoparticle. Silver nanoparticles (AgNPs) have become vital entities of study due to their distinctive properties which the scientific society aims to investigate the uses of. The current review addresses the modern expansion of AgNP synthesis, characterization, and mechanism, as well as global applications of AgNPs and their limitations.
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Affiliation(s)
- Shaheen Husain
- Amity Institute of Nanotechnology, Amity University Uttar Pradesh (AUUP), Sector 125, Noida 201313, India
- Correspondence: (S.H.); (S.K.V.)
| | - Aditya Nandi
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | | | - Utsa Saha
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Aishee Ghosh
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Adrija Sinha
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Aarya Sahay
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
| | - Shailesh Kumar Samal
- Unit of Immunology and Chronic Disease, Institute of Environmental Medicine, Karolinska Institutet, 17177 Stockholm, Sweden
| | - Pritam Kumar Panda
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
| | - Suresh K. Verma
- School of Biotechnology, KIIT University, Bhubaneswar 751024, India
- Condensed Matter Theory Group, Materials Theory Division, Department of Physics and Astronomy, Uppsala University, 75120 Uppsala, Sweden
- Correspondence: (S.H.); (S.K.V.)
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Gray DB, Gagnon V, Button M, Farooq AJ, Patch DJ, Wallace SJ, Koch I, O'Carroll DM, Weber KP. Silver nanomaterials released from commercial textiles have minimal impacts on soil microbial communities at environmentally relevant concentrations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:151248. [PMID: 34715213 DOI: 10.1016/j.scitotenv.2021.151248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/30/2021] [Accepted: 10/22/2021] [Indexed: 06/13/2023]
Abstract
Silver nanomaterials (Ag NMs) have been used in a variety of commercial products to take advantage of their antimicrobial properties. However, there are concerns that these AgNMs can be released during/after use and enter wastewater streams, potentially impacting aquatic systems or accumulating in wastewater biosolids. Biosolids, which are a residual of wastewater treatment processes, have been found to contain AgNMs and are frequently used as agricultural fertilizer. Since the function of soil microbial communities is imperative to nutrient cycling and agricultural productivity, it is important to characterize and assess the effects that silver nanomaterials could have in agricultural soils. In this study agricultural soil was amended with pristine engineered (PVP-coated or uncoated AgNMs), aged silver (sulphidized or released from textiles) nanomaterials, and ionic silver to determine the fate and toxicity over the course of three months. Exposures were carried out at various environmentally relevant concentrations (1 and 10 mg Ag/kg soil) representing between 30 to over 800 years of equivalent biosolid loadings. Over thirteen different methodologies and measures were used throughout this study to assess for potential effects of the silver nanomaterials on soil, including microbial community composition, average well colour development (AWCD) and enzymatic activity. Overall, the AgNM exposures did not exhibit significant toxic effects to the soil microbial communities in terms of density, activity, function and diversity. However, the positive ionic silver treatment (100 mg Ag/kg soil) resulted in suppression to microbial activity while also resulting in significantly higher populations of Frankia alni (nitrogen-fixer) and Arenimonas malthae (phytopathogen) as compared to the negative control (p < 0.05, Tukey HSD) which warrants further investigation.
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Affiliation(s)
- Devon B Gray
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - Vincent Gagnon
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - Mark Button
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada; Fipke Laboratory for Trace Element Research, University of British Columbia Okanagan, Kelowna, V1V 1V7, British Columbia, Canada
| | - Anbareen J Farooq
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - David J Patch
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - Sarah J Wallace
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - Iris Koch
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada
| | - Denis M O'Carroll
- School of Civil and Environmental Engineering, UNSW Water Research Laboratory, University of New South Wales Sydney, Manly Vale, NSW 2093, Australia
| | - Kela P Weber
- Environmental Sciences Group, Department of Chemistry and Chemical Engineering, Royal Military College of Canada, Kingston, ON K7K 7B4, Canada.
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Yonathan K, Mann R, Mahbub KR, Gunawan C. The impact of silver nanoparticles on microbial communities and antibiotic resistance determinants in the environment. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 293:118506. [PMID: 34793904 DOI: 10.1016/j.envpol.2021.118506] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 10/14/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
Nanosilver (NAg) is currently one of the major alternative antimicrobials to control microorganisms. With its broad-spectrum efficacy and lucrative commercial values, NAg has been used in medical devices and increasingly, in consumer products and appliances. This widespread use has inevitably led to the release and accumulation of the nanoparticle in water and sediment, in soil and even, wastewater treatment plants (WWTPs). This Article describes the physical and chemical transformations of NAg as well as the impact of the nanoparticle on microbial communities in different environmental settings; how the nanoparticle shifts not only the diversity and abundance of microbes, including those that are important in nitrogen cycles and decomposition of organic matters, but also their associated genes and in turn, the key metabolic processes. Current findings on the microbiological activity of the leached soluble silver, solid silver particulates and their respective transformed products, which underpin the mechanism of the nanoparticle toxicity in environmental microbes, is critically discussed. The Article also addresses the emerging evidence of silver-driven co-selection of antibiotic resistance determinants. The mechanism has been linked to the increasing pools of many antibiotic resistance genes already detected in samples from different environmental settings, which could ultimately find their ways to animals and human. The realized ecological impact of NAg calls for more judicial use of the nanoparticle. The generated knowledge can inform strategies for a better 'risks versus benefits' assessment of NAg applications, including the disposal stage.
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Affiliation(s)
- Kevin Yonathan
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Riti Mann
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia
| | - Khandaker Rayhan Mahbub
- School of Life Sciences, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia; South Australian Research and Development Institute, Primary Industries and Regions SA, Urrbrae, SA 5064, Australia
| | - Cindy Gunawan
- iThree Institute, University of Technology Sydney, 15 Broadway, Ultimo, NSW 2007, Australia; School of Chemical Engineering, University of New South Wales, NSW 2052, Australia.
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Ihtisham M, Noori A, Yadav S, Sarraf M, Kumari P, Brestic M, Imran M, Jiang F, Yan X, Rastogi A. Silver Nanoparticle's Toxicological Effects and Phytoremediation. NANOMATERIALS 2021; 11:nano11092164. [PMID: 34578480 PMCID: PMC8465113 DOI: 10.3390/nano11092164] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Revised: 08/05/2021] [Accepted: 08/19/2021] [Indexed: 11/17/2022]
Abstract
The advancement in nanotechnology has brought numerous benefits for humans in diverse areas including industry, medicine, and agriculture. The demand in the application of nanomaterials can result in the release of these anthropogenic materials into soil and water that can potentially harm the environment by affecting water and soil properties (e.g., soil texture, pH, organic matter, and water content), plants, animals, and subsequently human health. The properties of nanoparticles including their size, surface area, and reactivity affect their fate in the environment and can potentially result in their toxicological effects in the ecosystem and on living organisms. There is extensive research on the application of nano-based materials and the consequences of their release into the environment. However, there is little information about environmentally friendly approaches for removing nanomaterials from the environment. This article provides insight into the application of silver nanoparticles (AgNPs), as one of the most commonly used nanomaterials, their toxicological effects, their impacts on plants and microorganisms, and briefly reviews the possibility of remediation of these metabolites using phytotechnology approaches. This article provides invaluable information to better understand the fate of nanomaterials in the environment and strategies in removing them from the environment.
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Affiliation(s)
- Muhammad Ihtisham
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China; (M.I.); (F.J.)
| | - Azam Noori
- Department of Biology, Merrimack College, North Andover, MA 01845, USA;
| | - Saurabh Yadav
- Department of Biotechnology, Hemvati Nandan Bahuguna Garhwal (Central) University, Garhwal, Srinagar 246174, Uttarakhand, India;
| | - Mohammad Sarraf
- Department of Horticulture Science, Shiraz Branch, Islamic Azad University, Shiraz 71987-74731, Iran;
| | - Pragati Kumari
- Scientist Hostel-S-02, Chauras Campus, Garhwal, Srinagar 246174, Uttarakhand, India;
| | - Marian Brestic
- Department of Plant Physiology, Slovak University of Agriculture, A. Hlinku 2, 94976 Nitra, Slovakia;
- Department of Botany and Plant Physiology, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, 16500 Prague, Czech Republic
| | - Muhammad Imran
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Agriculture, South China Agricultural University, Guangzhou 510642, China;
| | - Fuxing Jiang
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China; (M.I.); (F.J.)
| | - Xiaojun Yan
- College of Landscape Architecture, Sichuan Agricultural University, Chengdu 611130, China; (M.I.); (F.J.)
- Correspondence: (X.Y.); (A.R.)
| | - Anshu Rastogi
- Laboratory of Bioclimatology, Department of Ecology and Environmental Protection, Poznan University of Life Sciences, Piątkowska 94, 60-649 Poznan, Poland
- Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, 7500 AE Enschede, The Netherlands
- Correspondence: (X.Y.); (A.R.)
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Eco-Interactions of Engineered Nanomaterials in the Marine Environment: Towards an Eco-Design Framework. NANOMATERIALS 2021; 11:nano11081903. [PMID: 34443734 PMCID: PMC8398366 DOI: 10.3390/nano11081903] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 12/23/2022]
Abstract
Marine nano-ecotoxicology has emerged with the purpose to assess the environmental risks associated with engineered nanomaterials (ENMs) among contaminants of emerging concerns entering the marine environment. ENMs’ massive production and integration in everyday life applications, associated with their peculiar physical chemical features, including high biological reactivity, have imposed a pressing need to shed light on risk for humans and the environment. Environmental safety assessment, known as ecosafety, has thus become mandatory with the perspective to develop a more holistic exposure scenario and understand biological effects. Here, we review the current knowledge on behavior and impact of ENMs which end up in the marine environment. A focus on titanium dioxide (n-TiO2) and silver nanoparticles (AgNPs), among metal-based ENMs massively used in commercial products, and polymeric NPs as polystyrene (PS), largely adopted as proxy for nanoplastics, is made. ENMs eco-interactions with chemical molecules including (bio)natural ones and anthropogenic pollutants, forming eco- and bio-coronas and link with their uptake and toxicity in marine organisms are discussed. An ecologically based design strategy (eco-design) is proposed to support the development of new ENMs, including those for environmental applications (e.g., nanoremediation), by balancing their effectiveness with no associated risk for marine organisms and humans.
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Courtois P, Rorat A, Lemiere S, Guyoneaud R, Attard E, Longepierre M, Rigal F, Levard C, Chaurand P, Grosser A, Grobelak A, Kacprzak M, Lors C, Richaume A, Vandenbulcke F. Medium-term effects of Ag supplied directly or via sewage sludge to an agricultural soil on Eisenia fetida earthworm and soil microbial communities. CHEMOSPHERE 2021; 269:128761. [PMID: 33168285 DOI: 10.1016/j.chemosphere.2020.128761] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/22/2020] [Accepted: 10/25/2020] [Indexed: 06/11/2023]
Abstract
The widespread use of silver nanoparticles (AgNPs) in consumer products that release Ag throughout their life cycle has raised potential environmental concerns. AgNPs primarily accumulate in soil through the spreading of sewage sludge (SS). In this study, the effects of direct exposure to AgNPs or indirect exposure via SS contaminated with AgNPs on the earthworm Eisenia fetida and soil microbial communities were compared, through 3 scenarios offering increasing exposure concentrations. The effects of Ag speciation were analyzed by spiking SS with AgNPs or AgNO3 before application to soil. SS treatment strongly impacted Ag speciation due to the formation of Ag2S species that remained sulfided after mixing in the soil. The life traits and expression of lysenin, superoxide dismutase, cd-metallothionein genes in earthworms were not impacted by Ag after 5 weeks of exposure, but direct exposure to Ag without SS led to bioaccumulation of Ag, suggesting transfer in the food chain. Ag exposure led to a decrease in potential carbon respiration only when directly added to the soil. The addition of SS had a greater effect on soil microbial diversity than the form of Ag, and the formation of Ag sulfides in SS reduced the impact of AgNPs on E. fetida and soil microorganisms compared with direct addition.
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Affiliation(s)
- Pauline Courtois
- Univ. Lille, IMT Lille Douai, Univ. Artois, Yncrea Hauts-de-France, ULR4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000, Lille, France.
| | - Agnieszka Rorat
- Univ. Lille, IMT Lille Douai, Univ. Artois, Yncrea Hauts-de-France, ULR4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000, Lille, France
| | - Sébastien Lemiere
- Univ. Lille, IMT Lille Douai, Univ. Artois, Yncrea Hauts-de-France, ULR4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000, Lille, France
| | - Rémy Guyoneaud
- Université de Pau et des Pays de L'Adour, E2S UPPA, CNRS, UMR IPREM 5254, Environmental Microbiology, 64000, Pau, France
| | - Eléonore Attard
- Université de Pau et des Pays de L'Adour, E2S UPPA, CNRS, UMR IPREM 5254, Environmental Microbiology, 64000, Pau, France
| | - Manon Longepierre
- Université de Pau et des Pays de L'Adour, E2S UPPA, CNRS, UMR IPREM 5254, Environmental Microbiology, 64000, Pau, France
| | - François Rigal
- Azorean Biodiversity Group, Centre for Ecology, Evolution and Environmental Changes (CE3C), Departamento de Ciencias Agráriase Engenharia Do Ambiente, Universidade Dos Açores, PT-9700-042, Angra Do Heroísmo, Açores, Portugal
| | - Clément Levard
- Aix Marseille Univ, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence, France
| | - Perrine Chaurand
- Aix Marseille Univ, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence, France
| | - Anna Grosser
- Częstochowa University of Technology, Faculty of Infrastructure and Environment, Czestochowa, Poland
| | - Anna Grobelak
- Częstochowa University of Technology, Faculty of Infrastructure and Environment, Czestochowa, Poland
| | - Malgorzata Kacprzak
- Częstochowa University of Technology, Faculty of Infrastructure and Environment, Czestochowa, Poland
| | - Christine Lors
- Univ. Lille, IMT Lille Douai, Univ. Artois, Yncrea Hauts-de-France, ULR4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000, Lille, France
| | - Agnès Richaume
- LEM, Laboratoire D'Ecologie Microbienne, UMR 5557, 69622, Villeurbanne, France
| | - Franck Vandenbulcke
- Univ. Lille, IMT Lille Douai, Univ. Artois, Yncrea Hauts-de-France, ULR4515 - LGCgE, Laboratoire de Génie Civil et Géo-Environnement, F-59000, Lille, France
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Abdulsada Z, Kibbee R, Örmeci B, DeRosa M, Princz J. Impact of anaerobically digested silver and copper oxide nanoparticles in biosolids on soil characteristics and bacterial community. CHEMOSPHERE 2021; 263:128173. [PMID: 33297141 DOI: 10.1016/j.chemosphere.2020.128173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 08/24/2020] [Accepted: 08/26/2020] [Indexed: 06/12/2023]
Abstract
This study investigated whether 2 and 30 mg AgNPs or CuONPs/g TS present in treated sludge (biosolids) may impact the soil health by monitoring the soil characteristics and soil bacterial community for 105 days after the application of biosolids. AgNPs or CuONPs/g TS were first anaerobically digested with mixed primary and secondary sludge rather than adding pristine nanoparticles to biosolids directly. Both environmentally relevant (under the USEPA ceiling concentration limits) and high concentrations of AgNPs and CuONPs were tested. Soil tests included TOC, TN, TP, pH, cell viability and heterotrophic plate counts (HPC). Metagenomic data was generated by high-throughput sequencing of the 16S rRNA gene to explore bacterial populations and diversity. AgNPs and CuONPs at 2 and 30 mg NPs/g TS of sludge could impact soil health factors such as bacterial diversity, community structure, and the population of plant growth-promoting rhizobacteria (PGPR). The population of the highly abundant bacteria that have important physiological roles in soil decreased, while the less important bacteria for soil function were able to thrive. CuONPs exhibited a higher level of toxicity than the AgNPs at both phylum and genus taxonomic levels, and the HPC decreased with higher concentrations of AgNPs and CuONPs. Initially, most of the studied phyla abundance was affected, but the control and other reactors approached similar levels by the end of the experiments, which may be explained by the decrease in toxicity due to the transformation of nanoparticles and the defence mechanisms of bacteria, and indicates the need for long-term field studies.
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Affiliation(s)
- Zainab Abdulsada
- Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada
| | - Richard Kibbee
- Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada
| | - Banu Örmeci
- Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada.
| | - Maria DeRosa
- Department of Chemistry, Carleton University, 1125 Colonel by Drive, Ottawa, ON K1S 5B6, Canada
| | - Juliska Princz
- Environment and Climate Change Canada, 335 River Road South, Ottawa, ON K1V 1C7, Canada
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Peixoto S, Khodaparast Z, Cornelis G, Lahive E, Green Etxabe A, Baccaro M, Papadiamantis AG, Gonçalves SF, Lynch I, Busquets-Fite M, Puntes V, Loureiro S, Henriques I. Impact of Ag 2S NPs on soil bacterial community - A terrestrial mesocosm approach. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 206:111405. [PMID: 33010592 DOI: 10.1016/j.ecoenv.2020.111405] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 09/18/2020] [Accepted: 09/19/2020] [Indexed: 06/11/2023]
Abstract
Soils might be a final sink for Ag2S nanoparticles (NPs). Still, there are limited data on their effects on soil bacterial communities (SBC). To bridge this gap, we investigated the effects of Ag2S NPs (10 mg kg-1 soil) on the structure and function of SBC in a terrestrial indoor mesocosm, using a multi-species design. During 28 days of exposure, the SBC function-related parameters were analysed in terms of enzymatic activity, community level physiological profile, culture of functional bacterial groups [phosphorous-solubilizing bacteria (P-SB) and heterotrophic bacteria (HB)], and SBC structure was analysed by 16S rRNA gene-targeted denaturing gradient gel electrophoresis. The SBC exposed to Ag2S NPs showed a significative decrease of functional parameters, such as β-glucosidase activity and L-arginine consumption, and increase of the acid phosphatase activity. At the structural level, significantly lower richness and diversity were detected, but at later exposure times compared to the AgNO3 treatment, likely because of a low dissolution rate of Ag2S NPs. In fact, stronger effects were observed in soils spiked with AgNO3, in both functional and structural parameters. Changes in SBC structure seem to negatively correlate with parameters related to phosphorous (acid phosphatase activity) and carbon cycling (abundance of HB, P-SB, and β-glucosidase activity). Our results indicate a significant effect of Ag2S NPs on SBC, specifically on parameters related to carbon and phosphorous cycling, at doses as low as 10 mg kg-1 soil. These effects were only observed after 28 days, highlighting the importance of long-term exposure experiments for slowly dissolving NPs.
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Affiliation(s)
- S Peixoto
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Z Khodaparast
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - G Cornelis
- Department of Soil and Environment, Swedish University of Agricultural Sciences, 75651 Uppsala, Sweden
| | - E Lahive
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford OX10 8BB, UK
| | - A Green Etxabe
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford OX10 8BB, UK
| | - M Baccaro
- Division of Toxicology, Wageningen University, 6708 WE Wageningen, The Netherlands
| | - A G Papadiamantis
- School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston B15 2TT, Birmingham, UK; NovaMechanics Ltd., 1065 Nicosia, Cyprus
| | - S F Gonçalves
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - I Lynch
- UK Centre for Ecology and Hydrology, Maclean Building, Benson Lane, Crowmarsh Gifford, Wallingford OX10 8BB, UK
| | - M Busquets-Fite
- Applied Nanoparticles SL, C Àlaba 88, 08018 Barcelona, Spain
| | - V Puntes
- Institut Català de Nanociència i Nanotecnologia (ICN2), CSIC, The Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, Barcelona, Spain; Institució Catalana de Recerca i Estudis Avançats (ICREA), 08010 Barcelona, Spain; Vall d'Hebron Institut de Recerca (VHIR), 08035 Barcelona, Spain
| | - S Loureiro
- CESAM-Centre for Environmental and Marine Studies & Department of Biology, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal.
| | - I Henriques
- Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Portugal
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Bilal M, Rasheed T, Mehmood S, Tang H, Ferreira LFR, Bharagava RN, Iqbal HMN. Mitigation of environmentally-related hazardous pollutants from water matrices using nanostructured materials - A review. CHEMOSPHERE 2020; 253:126770. [PMID: 32464768 DOI: 10.1016/j.chemosphere.2020.126770] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 04/07/2020] [Accepted: 04/08/2020] [Indexed: 02/05/2023]
Abstract
An unprecedented rise in population growth and rapid worldwide industrial development are associated with the increasing discharge of a range of toxic and baleful compounds. These toxic pollutants including dyes, endocrine-disrupters, heavy metals, personal care products, and pharmaceuticals are destructing nature's balance and intensifying environmental toxicity at a disquieting rate. Therefore, finding better, novel and more environmentally sound approaches for wastewater remediation are of great importance. Nanoscale materials have opened up some new horizons in various fields of science and technology. Among a range of treatment technologies, nanostructured materials have recently received incredible interest as an emerging platform for wastewater remediation owing to their exceptional surface-area-to-volume ratio, unique electrical and chemical properties, quantum size effects, high scalability, and tunable surface functionalities. An array of nanomaterials including noble metal-based nanostructures, transition metal oxide nanomaterials, carbon-based nanomaterials, carbon nanotubes, and graphene/graphene oxide nanomaterials to their novel nanocomposites and nanoconjugates have been attempted as the promising catalysts to overcome environmental dilemmas. In this review, we summarized recent advances in nanostructured materials that are particularly engineered for the remediation of environmental contaminants. The toxicity of various classes of relevant tailored nanomaterials towards human health and the ecosystem along with perspectives is also presented. In our opinion, an overview of the up-to-date advancements on this emerging topic may provide new ideas and thoughts for engineering low-cost and highly-efficient nanostructured materials for the abatement of recalcitrant pollutants for a sustainable environment.
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Affiliation(s)
- Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian, 223003, China.
| | - Tahir Rasheed
- School of Chemistry & Chemical Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Shahid Mehmood
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Hongzhi Tang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Luiz Fernando Romanholo Ferreira
- Graduate Program in Process Engineering, Tiradentes University, Av. Murilo Dantas 300, Farolândia, 49032-490, Aracaju, SE, Brazil; Institute of Technology and Research, Av. Murilo Dantas 300 - Prédio do ITP, Farolândia, 49032-490, Aracaju, SE, Brazil
| | - Ram Naresh Bharagava
- Laboratory for Bioremediation and Metagenomics Research, Department of Microbiology, Babasaheb Bhimrao Ambedkar University (A Central University), Vidya Vihar, Raebareli Road, Lucknow, 226 025, Uttar Pradesh, India
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, NL, CP 64849, Mexico.
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11
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Cao J, Feng Y, Lin X, Wang J. A beneficial role of arbuscular mycorrhizal fungi in influencing the effects of silver nanoparticles on plant-microbe systems in a soil matrix. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:11782-11796. [PMID: 31975001 DOI: 10.1007/s11356-020-07781-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
Silver nanoparticles (AgNPs) are considered to be emerging contaminant for plant-soil systems. AM arbuscular mycorrhizal (AM) fungi can alleviate the negative effects of a variety of pollutants on their hosts, but its potential roles in influencing the toxicity of AgNPs and the underlying mechanisms are still an open question. This study investigated the responses of maize (Zea mays L.) inoculated with or without AM fungi and soil microorganisms to different concentrations of AgNPs (0, 0.025, 0.25, and 2.5 mg kg-1). The inoculation of AM fungi helps to alleviate the AgNP-induced phytotoxicity. Compared to the non-AM fungal inoculated treatments, AM fungal inoculation significantly increased the mycorrhizal colonization, biomass and phosphorus (P) acquisitions of maize, with an upregulation of P transporter gene expression under AgNP treatments. AM fungal inoculation decreased Ag content in plant shoots and roots, downregulated expression levels of genes involved in Ag transport and gene encoding a metallothionein involved in metal homeostasis. The beneficial role of AM fungi extended to soil microbes. Compared to the non-AM fungal inoculated treatments, AM fungal inoculation decreased the toxicity of AgNPs to soil microbial activities and bacterial abundance. AM fungal inoculation increased the bacterial diversity and induced changes in the soil bacterial community composition. Altogether, the present study revealed that AM fungal symbiosis can play beneficial roles in mediating the negative effects exposed by AgNPs on plants probably through changing the expressions of potential Ag transporters and cooperating with soil bacterial community.
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Affiliation(s)
- Jiling Cao
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu, People's Republic of China
| | - Youzhi Feng
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu, People's Republic of China
| | - Xiangui Lin
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu, People's Republic of China.
| | - Junhua Wang
- State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, Nanjing, 210008, Jiangsu, People's Republic of China
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Jogaiah S, Kurjogi M, Abdelrahman M, Hanumanthappa N, Tran LSP. Ganoderma applanatum-mediated green synthesis of silver nanoparticles: Structural characterization, and in vitro and in vivo biomedical and agrochemical properties. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2017.12.002] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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13
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Courtois P, Rorat A, Lemiere S, Guyoneaud R, Attard E, Levard C, Vandenbulcke F. Ecotoxicology of silver nanoparticles and their derivatives introduced in soil with or without sewage sludge: A review of effects on microorganisms, plants and animals. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 253:578-598. [PMID: 31330350 DOI: 10.1016/j.envpol.2019.07.053] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 07/09/2019] [Accepted: 07/10/2019] [Indexed: 06/10/2023]
Abstract
Silver nanoparticles (AgNPs) are widely incorporated in many products, partly due to their antimicrobial properties. The subsequent discharge of this form of silver into wastewater leads to an accumulation of silver species (AgNPs and derivatives resulting from their chemical transformation), in sewage sludge. As a result of the land application of sewage sludge for agricultural or remediation purposes, soils are the primary receiver media of silver contamination. Research on the long-term impact of AgNPs on the environment is ongoing, and this paper is the first review that summarizes the existing state of scientific knowledge on the potential impact of silver species introduced into the soil via sewage sludge, from microorganisms to earthworms and plants. Silver species can easily enter cells through biological membranes and affect the physiology of organisms, resulting in toxic effects. In soils, exposure to AgNPs may change microbial biomass and diversity, decrease plant growth and inhibit soil invertebrate reproduction. Physiological, biochemical and molecular effects have been documented in various soil organisms and microorganisms. Negative effects on organisms of the dominant form of silver in sewage sludge, silver sulfide (Ag2S), have been observed, although these effects are attenuated compared to the effects of metallic AgNPs. However, silver toxicity is complex to evaluate and much remains unknown about the ecotoxicology of silver species in soils, especially with respect to the possibility of transfer along the trophic chain via accumulation in plant and animal tissues. Critical points related to the hazards associated with the presence of silver species in the environment are described, and important issues concerning the ecotoxicity of sewage sludge applied to soil are discussed to highlight gaps in existing scientific knowledge and essential research directions for improving risk assessment.
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Affiliation(s)
- Pauline Courtois
- Univ. Lille - LGCgE - Laboratoire de Génie Civil et géo-Environnement, Cité scientifique, SN3, F-59655, Villeneuve d'Ascq, France
| | - Agnieszka Rorat
- Univ. Lille - LGCgE - Laboratoire de Génie Civil et géo-Environnement, Cité scientifique, SN3, F-59655, Villeneuve d'Ascq, France
| | - Sébastien Lemiere
- Univ. Lille - LGCgE - Laboratoire de Génie Civil et géo-Environnement, Cité scientifique, SN3, F-59655, Villeneuve d'Ascq, France
| | - Rémy Guyoneaud
- Université de Pau et des Pays de l'Adour/E2S/CNRS, Institut des Sciences Analytiques et de Physico-chimie pour L'Environnement et les Matériaux (IPREM), UMR 5254, 64000, Pau, France
| | - Eléonore Attard
- Université de Pau et des Pays de l'Adour/E2S/CNRS, Institut des Sciences Analytiques et de Physico-chimie pour L'Environnement et les Matériaux (IPREM), UMR 5254, 64000, Pau, France
| | - Clément Levard
- Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, Aix-en-Provence, France
| | - Franck Vandenbulcke
- Univ. Lille - LGCgE - Laboratoire de Génie Civil et géo-Environnement, Cité scientifique, SN3, F-59655, Villeneuve d'Ascq, France.
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Fajardo C, García-Cantalejo J, Botías P, Costa G, Nande M, Martin M. New insights into the impact of nZVI on soil microbial biodiversity and functionality. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 54:157-167. [PMID: 30588856 DOI: 10.1080/10934529.2018.1535159] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 10/05/2018] [Accepted: 10/09/2018] [Indexed: 06/09/2023]
Abstract
Nanoscale zero-valent iron (nZVI) is a strong reducing agent used for in situ remediation of soil. The impacts of nZVI (5-10% w/w) on the soil microbial biodiversity and functionality of two soils (Lufa 2.2 and 2.4) were assessed. Illumina MiSeq technology was used to evaluate the structure of soil microbiomes after 21 days of exposure. Proteobacteria, Verrucomicrobia, Firmicutes and Actinobacteria were the most abundant phyla in both soils. However, the dynamics of bacterial community composition following nZVI addition differed. nZVI exposure induced pronounced shifts in the microbial composition of soil 2.4, but not in soil 2.2; an increase in Verrucomicrobia abundance was the unique common taxonomic pattern observed in both soils. The PICRUSt approach was applied to predict the functional composition of each metagenome. Environmental information processing function (membrane transport) was decreased in both nZVI-spiked soils, although soil 2.4 samples were enriched in functions involved in cellular processes and metabolism. The effects of nZVI on autochthonous bacterial communities clearly varied with the soil type assessed; changes at the phylogenetic level appeared to be more abundant than those observed at the functional level, and thus, the overall effort of the soil ecosystem might involve the maintenance of functionality following nZVI exposure.
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Affiliation(s)
- Carmen Fajardo
- a Facultad de Farmacia , Universidad de Alcalá , Alcalá de Henares , Madrid , Spain
| | - Jesús García-Cantalejo
- b Genomics Facility , Universidad Complutense, Parque Científico (UCM-PCM) , Madrid , Spain
| | - Pedro Botías
- b Genomics Facility , Universidad Complutense, Parque Científico (UCM-PCM) , Madrid , Spain
| | - Gonzalo Costa
- c Facultad de Veterinaria , Universidad Complutense , Madrid , Spain
| | - Mar Nande
- c Facultad de Veterinaria , Universidad Complutense , Madrid , Spain
| | - Margarita Martin
- c Facultad de Veterinaria , Universidad Complutense , Madrid , Spain
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Parada J, Rubilar O, Fernández-Baldo MA, Bertolino FA, Durán N, Seabra AB, Tortella GR. The nanotechnology among US: are metal and metal oxides nanoparticles a nano or mega risk for soil microbial communities? Crit Rev Biotechnol 2018; 39:157-172. [PMID: 30396282 DOI: 10.1080/07388551.2018.1523865] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Metal nanoparticles and metal oxides nanoparticles (MNPs/MONPs) have been widely included in a great diversity of products and industrial applications and they are already a part of our everyday life. According to estimation studies, their production is expected to increase exponentially in the next few years. Consequently, soil has been suggested as the main sink of MNPs/MONPs once they are deliberately or accidentally released into the environment. The potential negative perturbations that may result on soil microbial communities and ecological processes are resulting in concerns. Several nano-toxicological studies of MNPs/MONPs, reported so far, have focused on aquatic organisms, animals, and soil invertebrates. However, during recent years, the studies have been oriented to understand the effects of MNPs/MONPs on microbial communities and their interaction with soil components. The studies have suggested that MNPs/MONPs are one of the most toxic type to soil biota, amongst different types of nanomaterials. This may threaten soil health and fertility, since microbial communities are known to support important biological processes and ecosystem services such as the nutrient cycling, whereby their protection against the environmental pollution is imperative. Therefore, in this review we summarize the actual knowledge available from the last five years (2013-2018) and gaps about the potential negative, positive or neutral effects produced on soil by different classes of MNPs/MONPs. A particular emphasis has been placed on the associated soil microorganisms and biological processes. Finally, perspectives about future research are discussed.
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Affiliation(s)
- J Parada
- a Doctoral Program in Sciences of Natural Resources , Universidad de La Frontera , Temuco , Chile
| | - O Rubilar
- b Chemical Engineering Department , Universidad de La Frontera , Temuco , Chile.,c Scientific & Technological Bioresource Nucleus , Universidad de La Frontera , Temuco , Chile
| | - M A Fernández-Baldo
- d INQUISAL, Departamento de Química , Universidad Nacional de San Luis , San Luis , Argentina
| | - F A Bertolino
- d INQUISAL, Departamento de Química , Universidad Nacional de San Luis , San Luis , Argentina
| | - N Durán
- e Institute of Biology, Urogenital, Carcinogenesis and Immunotherapy Laboratory, Department of Genetics, Evolution and Bioagents, University of Campinas, Campinas, Brazil.,f NanoBioss, Chemistry Institute , University of Campinas , Campinas , Brazil.,g Nanomedicine Research Unit (Nanomed) , Federal University of ABC (UFABC) , Santo André , Brazil
| | - A B Seabra
- h Center for Natural and Human Sciences , Universidade Federal do ABC , Santo André , Brazil
| | - G R Tortella
- b Chemical Engineering Department , Universidad de La Frontera , Temuco , Chile.,c Scientific & Technological Bioresource Nucleus , Universidad de La Frontera , Temuco , Chile
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16
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Verma M, Kaur A, Kaur H, Kaur N, Singh N. Selective Determination of Silver Metal Ion Using Polyamine‐Based Ratiometric Chemosensor in an Aqueous Medium and Its Real‐Time Applicability as a Silver Sink. ChemistrySelect 2018. [DOI: 10.1002/slct.201702540] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Meenakshi Verma
- Department of ChemistryIndian Institute of Technology Ropar, Rupanagar Punjab India
| | - Amanpreet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Harpreet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Navneet Kaur
- Department of ChemistryPanjab University Chandigarh-160014 India
| | - Narinder Singh
- Department of ChemistryIndian Institute of Technology Ropar, Rupanagar Punjab India
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17
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McGee CF, Storey S, Clipson N, Doyle E. Concentration-dependent responses of soil bacterial, fungal and nitrifying communities to silver nano and micron particles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:18693-18704. [PMID: 29705905 DOI: 10.1007/s11356-018-2087-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 04/20/2018] [Indexed: 05/16/2023]
Abstract
The growing use of silver nanoparticles (AgNPs) is likely to result in increased environmental contamination. Although AgNPs have been reported to affect microbial communities in a range of ecosystems, there is still a lack of information concerning the effect of low concentrations of AgNPs on soil microbial community structures and functional groups involved in biogeochemical cycling. In this study, the concentration-dependent effects of AgNPs and silver micron particles (AgMPs) on bacterial and fungal community structures in an agricultural pastureland soil were examined in a microcosm-based experiment using enzyme analysis, molecular fingerprinting, qPCR and amplicon sequencing. Soil enzyme processes were impacted by Ag contamination, with soil dehydrogenase activity reduced by 1 mg kg-1 of AgNPs and AgMPs. Soil urease activity was less susceptible, but was inhibited by ≥ 10 mg kg-1 AgNPs. The significant (P ≤ 0.001) decrease in copy numbers of the amoA gene by 10 mg kg-1 AgNPs indicated that archaea ammonia oxidisers may be more sensitive to AgNP contamination than bacteria. Amplicon sequencing revealed the bacterial phyla Acidobacteria and Verrucomicrobia to be highly sensitive to AgNP contamination. A broad reduction in the relative abundance of Acidobacterial genera was observed, with the exception of the genus Geothrix which increased in response to AgNP and AgMP amendment. Broad tolerance to Ag was observed among the Bacteriodetes, with higher relative abundance of most genera observed in the presence of AgNPs and AgMPs. The proteobacterial genus Dyella was highly tolerant to AgNPs and AgMPs and relative abundance of this genus increased with Ag concentration. Soil fungal community structure responded to both AgNPs and AgMPs, but the nanoparticle had an impact at a lower concentration. This study demonstrates that pastureland soil microbial communities are highly sensitive to AgNP amendment and key functional processes may be disrupted by relatively low levels of contamination.
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Affiliation(s)
- Conor Francis McGee
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland.
| | - Sean Storey
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Nicholas Clipson
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - Evelyn Doyle
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
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18
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Effect of biosynthesized silver nanoparticles on native soil microflora via plant transport during plant-pathogen-nanoparticles interaction. 3 Biotech 2017; 7:345. [PMID: 28955642 DOI: 10.1007/s13205-017-0988-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2017] [Accepted: 09/20/2017] [Indexed: 10/18/2022] Open
Abstract
In this study, the interaction of biosynthesized silver nanoparticles (BSNP) with native soil via plant transport was assessed in model pathosystem of Arabidopsis thaliana and Alternaria brassicicola. Foliar application of 5 μg/mL of BSNP reduced number of spores of fungi to 2.2 × 105 from 7 × 105, while numbers of lesions got reduced to 0.9/leaf in treated plants compared to 2.9/leaf in pathogen-infected plant without altering soil pH, electric conductivity, soil organic carbon and soil microbial biomass carbon. Soil enzyme activities including dehydrogenase, acid and alkaline phosphatase, urease, β-glucosidase and protease did not alter significantly in BSNP-treated plants compared to control plants. Application of BSNP did not alter the number of cultivable bacteria, fungi and actinomycetes. Effect of BSNP on uncultured bacterial diversity was measured by DGGE analysis which revealed similar banding pattern in all different treatments except in A. brassicicola-infected (AB) and A. brassicicola-infected plants treated with silver nanoparticles (AB + BSNP) after 120 days. Although AB-infected plants exhibited a decrease in bacterial diversity, treatment of AB + BSNP after 120 days demonstrated maximum bacterial diversity. McIntosh, Shannon, and Simpson diversity indices were calculated based on carbon source utilization pattern by BIOLOG analysis, revealing no significant difference among all treatments in different time intervals. BSNPs have the potential to act as strong antimicrobial agent for plant disease management without altering the native soil microflora.
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Dempsey J, Stamets J, Eggleson K. Stakeholder Views of Nanosilver Linings: Macroethics Education and Automated Text Analysis Through Participatory Governance Role Play in a Workshop Format. SCIENCE AND ENGINEERING ETHICS 2017; 23:913-939. [PMID: 27405936 DOI: 10.1007/s11948-016-9799-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 05/25/2016] [Indexed: 06/06/2023]
Abstract
The Nanosilver Linings role play case offers participants first-person experience with interpersonal interaction in the context of the wicked problems of emerging technology macroethics. In the fictional scenario, diverse societal stakeholders convene at a town hall meeting to consider whether a nanotechnology-enabled food packaging industry should be offered incentives to establish an operation in their economically struggling Midwestern city. This original creative work was built with a combination of elements, selected for their established pedagogical efficacy (e.g. active learning, case-based learning) and as topical dimensions of the realistic scenario (e.g. nanosilver in food packaging, occupational safety and health). The product life cycle is used as a framework for integrated consideration of scientific, societal, and ethical issues. The Nanosilver Linings hypothetical case was delivered through the format of the 3-hour workshop Ethics when Biocomplexity meets Human Complexity, providing an immersive, holistic ethics learning experience for STEM graduate students. Through their participation in the Nanosilver Linings case and Ethics when Biocomplexity meets Human Complexity workshop, four cohorts of science and engineering doctoral students reported the achievement of specific learning objectives pertaining to a range of macroethics concepts and professional practices, including stakeholder perspectives, communication, human values, and ethical frameworks. Automated text analysis of workshop transcripts revealed differences in sentiment and in ethical framework (consequentialism/deontology) preference between societal stakeholder roles. These resources have been recognized as ethics education exemplars by the U.S. National Academy of Engineering .
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Affiliation(s)
| | | | - Kathleen Eggleson
- Indiana University School of Medicine-South Bend, 1234 Notre Dame Avenue, South Bend, IN, 46617, USA.
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20
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Dudefoi W, Moniz K, Allen-Vercoe E, Ropers MH, Walker VK. Impact of food grade and nano-TiO 2 particles on a human intestinal community. Food Chem Toxicol 2017; 106:242-249. [PMID: 28564612 DOI: 10.1016/j.fct.2017.05.050] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 05/01/2017] [Accepted: 05/25/2017] [Indexed: 12/12/2022]
Abstract
Titanium dioxide (TiO2) nanoparticles (NPs) are used as an additive (E171 or INS171) in foods such as gum, candy and puddings. To address concerns about the potential hazardous effects of ingested NPs, the toxicity of these food-grade NPs was investigated with a defined model intestinal bacterial community. Each titania preparation (food-grade TiO2 formulations, E171-1 and E171-6a) was tested at concentrations equivalent to those found in the human intestine after sampling 1-2 pieces of gum or candy (100-250 ppm). At the low concentrations used, neither the TiO2 food additives nor control TiO2 NPs had an impact on gas production and only a minor effect on fatty acids profiles (C16:00, C18:00, 15:1 w5c, 18:1 w9c and 18:1 w9c, p < 0.05). DNA profiles and phylogenetic distributions confirmed limited effects on the bacterial community, with a modest decrease in the relative abundance of the dominant Bacteroides ovatus in favor of Clostridium cocleatum (-13% and +14% respectively, p < 0.05). Such minor shifts in the treated consortia suggest that food grade and nano-TiO2 particles do not have a major effect on human gut microbiota when tested in vitro at relevant low concentrations. However, the cumulative effects of chronic TiO2 NP ingestion remain to be tested.
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Affiliation(s)
- William Dudefoi
- INRA, UR1268 Biopolymères Interactions Assemblages, 44300 Nantes, France
| | - Kristy Moniz
- Department of Biology, Queen's University, Kingston ON K7L 3N6, Canada
| | - Emma Allen-Vercoe
- Department of Molecular and Cellular Biology, University of Guelph, Guelph, ON N1G 2W1, Canada
| | | | - Virginia K Walker
- Department of Biology, Queen's University, Kingston ON K7L 3N6, Canada; Department of Biomedical and Molecular Sciences, School of Environmental Studies, Queen's University, Kingston, ON K7L 3N6, Canada.
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21
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McGee CF, Storey S, Clipson N, Doyle E. Soil microbial community responses to contamination with silver, aluminium oxide and silicon dioxide nanoparticles. ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:449-458. [PMID: 28197855 DOI: 10.1007/s10646-017-1776-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 02/04/2017] [Indexed: 05/14/2023]
Abstract
Soil microorganisms are key contributors to nutrient cycling and are essential for the maintenance of healthy soils and sustainable agriculture. Although the antimicrobial effects of a broad range of nanoparticulate substances have been characterised in vitro, little is known about the impact of these compounds on microbial communities in environments such as soil. In this study, the effect of three widely used nanoparticulates (silver, silicon dioxide and aluminium oxide) on bacterial and fungal communities in an agricultural pastureland soil was examined in a microcosm-based experiment using a combination of enzyme analysis, molecular fingerprinting and amplicon sequencing. A relatively low concentration of silver nanoparticles (AgNPs) significantly reduced total soil dehydrogenase and urease activity, while Al2O3 and SiO2 nanoparticles had no effect. Amplicon sequencing revealed substantial shifts in bacterial community composition in soils amended with AgNPs, with significant decreases in the relative abundance of Acidobacteria and Verrucomicrobia and an increase in Proteobacteria. In particular, the relative abundance of the Proteobacterial genus Dyella significantly increased in AgNP amended soil. The effects of Al2O3 and SiO2 NPs on bacterial community composition were less pronounced. AgNPs significantly reduced bacterial and archaeal amoA gene abundance in soil, with the archaea more susceptible than bacteria. AgNPs also significantly impacted soil fungal community structure, while Al2O3 and SiO2 NPs had no effect. Several fungal ribotypes increased in soil amended with AgNPs, compared to control soil. This study highlights the need to consider the effects of individual nanoparticles on soil microbial communities when assessing their environmental impact.
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Affiliation(s)
- C F McGee
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - S Storey
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - N Clipson
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland
| | - E Doyle
- School of Biology and Environmental Science and Earth Institute, University College Dublin, Belfield, Dublin 4, Ireland.
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Samarajeewa AD, Velicogna JR, Princz JI, Subasinghe RM, Scroggins RP, Beaudette LA. Effect of silver nano-particles on soil microbial growth, activity and community diversity in a sandy loam soil. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 220:504-513. [PMID: 27717530 DOI: 10.1016/j.envpol.2016.09.094] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 09/23/2016] [Accepted: 09/29/2016] [Indexed: 05/23/2023]
Abstract
Silver nano-particles (AgNPs) are widely used in a range of consumer products as a result of their antimicrobial properties. Given the broad spectrum of uses, AgNPs have the potential for being released to the environment. As a result, environmental risks associated with AgNPs need to be assessed to aid in the development of regulatory guidelines. Research was performed to assess the effects of AgNPs on soil microbial activity and diversity in a sandy loam soil with an emphasis on using a battery of microbial tests involving multiple endpoints. The test soil was spiked with PVP coated (0.3%) AgNPs at the following concentrations of 49, 124, 287, 723 and 1815 mg Ag kg-1 dry soil. Test controls included an un-amended soil; soil amended with PVP equivalent to the highest PVP concentration of the coated AgNP; and soil amended with humic acid, as 1.8% humic acid was used as a suspension agent for the AgNPs. The impact on soil microbial community was assessed using an array of tests including heterotrophic plate counting, microbial respiration, organic matter decomposition, soil enzyme activity, biological nitrification, community level physiological profiling (CLPP), Ion Torrent™ DNA sequencing and denaturing gradient gel electrophoresis (DGGE). An impact on microbial growth, activity and community diversity was evident from 49 to 1815 mg kg-1 with the median inhibitory concentrations (IC50) as low as 20-31 mg kg-1 depending on the test. AgNP showed a notable impact on microbial functional and genomic diversity. Emergence of a silver tolerant bacterium was observed at AgNP concentrations of 49-287 mg kg-1 after 14-28 days of incubation, but not detectable at 723 and 1815 mg kg-1. The bacterium was identified as Rhodanobacter sp. The study highlighted the effectiveness of using multiple microbial endpoints for inclusion to the environmental risk assessment of nanomaterials.
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Affiliation(s)
- A D Samarajeewa
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada.
| | - J R Velicogna
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada
| | - J I Princz
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada
| | - R M Subasinghe
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada
| | - R P Scroggins
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada
| | - L A Beaudette
- Biological Assessment and Standardization Section, Environment and Climate Change Canada, 335, River Road, Ottawa, K1V 1C7, Ontario, Canada
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23
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Kwak JI, An YJ. The current state of the art in research on engineered nanomaterials and terrestrial environments: Different-scale approaches. ENVIRONMENTAL RESEARCH 2016; 151:368-382. [PMID: 27540869 DOI: 10.1016/j.envres.2016.08.005] [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: 03/16/2016] [Revised: 07/07/2016] [Accepted: 08/06/2016] [Indexed: 06/06/2023]
Abstract
Recent studies regarding the environmental fate of engineered nanomaterials (ENMs) reported that most ENMs were eventually deposited in landfills. Therefore, it is important to evaluate the environmental effects of ENMs on soils through long-term and environmentally relevant studies. Our review of 65 studies published since 2007 revealed that ENMs had adverse effects on terrestrial species, including soil microorganisms, plants, and earthworms. The papers reported the results of soil toxicity tests for ENMs at the microcosm and mesocosm levels, in the field, and through food chains, as well as their effects on species sensitivity distributions. Little research has been conducted on the interaction between ENMs and actual environmental conditions, such as their effects on a community of multiple species or species sensitivity distributions. Few studies have used mesocosms, and only a single study has been conducted in the field. The present review provides a broad perspective on the impact of ENMs on soil organisms as reported in the literature and highlights directions for future work.
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Affiliation(s)
- Jin Il Kwak
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea.
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24
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Doolette CL, Gupta VVSR, Lu Y, Payne JL, Batstone DJ, Kirby JK, Navarro DA, McLaughlin MJ. Quantifying the Sensitivity of Soil Microbial Communities to Silver Sulfide Nanoparticles Using Metagenome Sequencing. PLoS One 2016; 11:e0161979. [PMID: 27575719 PMCID: PMC5004803 DOI: 10.1371/journal.pone.0161979] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 08/15/2016] [Indexed: 12/22/2022] Open
Abstract
Soils are a sink for sulfidised-silver nanoparticles (Ag2S-NPs), yet there are limited ecotoxicity data for their effects on microbial communities. Conventional toxicity tests typically target a single test species or function, which does not reflect the broader community response. Using a combination of quantitative PCR, 16S rRNA amplicon sequencing and species sensitivity distribution (SSD) methods, we have developed a new approach to calculate silver-based NP toxicity thresholds (HCx, hazardous concentrations) that are protective of specific members (operational taxonomic units, OTUs) of the soil microbial community. At the HC20 (80% of species protected), soil OTUs were significantly less sensitive to Ag2S-NPs compared to AgNPs and Ag+ (5.9, 1.4 and 1.4 mg Ag kg-1, respectively). However at more conservative HC values, there were no significant differences. These trends in OTU responses matched with those seen in a specific microbial function (rate of nitrification) and amoA-bacteria gene abundance. This study provides a novel molecular-based framework for quantifying the effect of a toxicant on whole soil microbial communities while still determining sensitive genera/species. Methods and results described here provide a benchmark for microbial community ecotoxicological studies and we recommend that future revisions of Soil Quality Guidelines for AgNPs and other such toxicants consider this approach.
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Affiliation(s)
- Casey L. Doolette
- School of Agriculture Food and Wine, The University of Adelaide, Adelaide, Australia
- * E-mail:
| | | | - Yang Lu
- Advanced Water Management Centre (AWMC), The University of Queensland, St. Lucia, Australia
| | - Justin L. Payne
- School of Natural and Built Environments, University of South Australia, Adelaide, Australia
| | - Damien J. Batstone
- Advanced Water Management Centre (AWMC), The University of Queensland, St. Lucia, Australia
| | - Jason K. Kirby
- CSIRO Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Adelaide, Australia
| | - Divina A. Navarro
- School of Agriculture Food and Wine, The University of Adelaide, Adelaide, Australia
- CSIRO Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Adelaide, Australia
| | - Mike J. McLaughlin
- School of Agriculture Food and Wine, The University of Adelaide, Adelaide, Australia
- CSIRO Land and Water, Environmental Contaminant Mitigation and Technologies Research Program, Adelaide, Australia
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25
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Tlili A, Cornut J, Behra R, Gil-Allué C, Gessner MO. Harmful effects of silver nanoparticles on a complex detrital model system. Nanotoxicology 2016; 10:728-35. [DOI: 10.3109/17435390.2015.1117673] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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