101
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Bravo-Guerra C, Cáceres-Martínez J, Vásquez-Yeomans R, Pestryakov A, Bogdanchikova N. Lethal effects of silver nanoparticles on Perkinsus marinus, a protozoan oyster parasite. J Invertebr Pathol 2019; 169:107304. [PMID: 31816303 DOI: 10.1016/j.jip.2019.107304] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 12/03/2019] [Accepted: 12/05/2019] [Indexed: 12/29/2022]
Abstract
Perkinsus marinus, a World Organisation for Animal Health (OIE) notifiable parasite, infects several species of oyster, including Crassostrea virginica and Crassostrea corteziensis. There is little information on possible treatments for this parasite, but the biocidal properties of silver nanoparticles (AgNP) suggest their potential use. The lethal effects of the Argovit™ formulation of AgNP was evaluated for the first time against hypnospores of P. marinus, a particularly resistant stage of the parasite that persists in the environment until favorable conditions occur for zoosporulation to be induced. Hypnospores were exposed to 1, 10 and 100 µg/mL of silver compounded in Argovit™ (corresponding to 0.009, 0.093 and 0.927 mM of Ag), to 157.47 µg/mL (0.927 mM) of silver nitrate (AgNO3) used as a positive control, and to polyvinylpyrrolidone (PVP, 1570 µg/mL) used as a vehicle control. Hypnospores in culture medium without treatment served as a negative control. Dose-dependence after 24 h of exposure to AgNP was observed. A concentration of 0.093 mM AgNP resulted in 50% mortality of P. marinus. Treatment with 0.927 mM of silver, as AgNP or AgNO3, was highly lethal, with greater than 90% mortality. Silver nanoparticles were implicated in the deformation of hypnospores. Transmission electron microscopy (TEM) revealed AgNP within the hypnospore wall and involved in the degradation of lipid droplets in the cytoplasm. AgNP were effective in a saline medium, suggesting the utility of detailed studies of the physicochemical interactions of AgNP under these conditions. These results suggest investigations of possible effect of Argovit™ formulation of AgNP against stages of the parasite like trophozoites and tomonts that develop in tissues or hemolymph of infected oysters as well as studies on its effects in the host and environment.
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Affiliation(s)
- Cecilia Bravo-Guerra
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, CP 22860 Ensenada, Baja California, Mexico
| | - Jorge Cáceres-Martínez
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, CP 22860 Ensenada, Baja California, Mexico.
| | - Rebeca Vásquez-Yeomans
- Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Carretera Ensenada-Tijuana No. 3918, CP 22860 Ensenada, Baja California, Mexico
| | | | - Nina Bogdanchikova
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, km 107 carretera Ensenada-Tijuana, CP 22860 Ensenada, Baja California, Mexico
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102
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Déniel M, Errien N, Daniel P, Caruso A, Lagarde F. Current methods to monitor microalgae-nanoparticle interaction and associated effects. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 217:105311. [PMID: 31730931 DOI: 10.1016/j.aquatox.2019.105311] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 09/17/2019] [Accepted: 09/18/2019] [Indexed: 06/10/2023]
Abstract
Widespread use of nanoparticles for different applications has diffused their presence in the environment, particularly in water. Many studies have been conducted to evaluate their effects on aquatic organisms. Microalgae are at the base of aquatic trophic chains. These organisms which can be benthic or pelagic, meaning that they can enter into interaction with all kinds of particulate materials whatever their density, and constitute an interesting model study. The purpose of this review was to gather more than sixty studies on microalgae exposure to the different nanoparticles that may be present in the aquatic environment. After a brief description of each type of nanoparticle (metals, silica and plastic) commonly used in ecotoxicological studies, techniques to monitor their properties are presented. Then, different effects on microalgae resulting from interaction with nanoparticles are described as well as the parameters and techniques for monitoring them. The impacts described in the literature are primarily shading, ions release, oxidative stress, adsorption, absorption and disruption of microalgae barriers. Several parameters are proposed to monitor effects such as growth, photosynthesis, membrane integrity, biochemical composition variations and gene expression changes. Finally, in the literature, while different impacts of nanoparticles on microalgae have been described, there is no consensus on evidence of nanomaterial toxicity with regard to microalgae. A parallel comparison of different nanoparticle types appears essential in order to prioritize which factors exert the most influence on toxicity in microalgae cultures: size, nature, surface chemistry, concentration or interaction time.
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Affiliation(s)
- Maureen Déniel
- Le Mans Université, IMMM UMR-CNRS 6283, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
| | - Nicolas Errien
- Le Mans Université, IMMM UMR-CNRS 6283, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
| | - Philippe Daniel
- Le Mans Université, IMMM UMR-CNRS 6283, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
| | - Aurore Caruso
- Laboratoire Mer, Molécules, Santé, EA 2160, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
| | - Fabienne Lagarde
- Le Mans Université, IMMM UMR-CNRS 6283, Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
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103
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Cervantes-Avilés P, Huang Y, Keller AA. Multi-technique approach to study the stability of silver nanoparticles at predicted environmental concentrations in wastewater. WATER RESEARCH 2019; 166:115072. [PMID: 31525511 DOI: 10.1016/j.watres.2019.115072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 09/04/2019] [Accepted: 09/07/2019] [Indexed: 06/10/2023]
Abstract
The concentration of silver nanoparticles (nano-Ag) in aqueous media influences the kinetics of ion release; hence, the transformation and stability of nano-Ag are also influenced. The stability, dissolution and further transformation of nano-Ag in aqueous media at predicted environmental concentrations (PECs) ≤ μg/L may differ from that reported at higher concentrations. Analytical techniques characterizing nanoparticles (NPs) at μg/L have advantages and limitations, including an inherent bias based on theoretical and analytical considerations, as well as the matrix effects. In this work, we applied nanoparticle tracking analysis (NTA), single particle ICP-MS (sp-ICP-MS), and localized surface plasmon resonance (LSPR) analysis to study the stability and dissolution of nano-Ag with different nominal sizes (20, 40, 80 and 100 nm) at PECs in synthetic wastewater (SWW). The influence of the main wastewater constituents, such as organic matter, Cl-, S2-, PO43- and NH4+, on the stability and dissolution of nano-Ag (40 nm) at PECs was also determined. Diagrams of the predominant species of silver exposed to major ligands were generated using MINTEQ. After 5 h in SWW, 20 nm nano-Ag dissolved 19.27% and 40 nm nano-Ag dissolved 14.8%. Aggregates of Ag particles were clearly noted for 80 and 100 nm nano-Ag after 5 h of exposure to SWW. Aggregates size also ranged very similar for both techniques, NTA and sp-ICP-MS, 29-211 nm and 38-241 for NTA and 48-210 and 50-220 nm, for sp-ICP-MS, respectively. Monodispersed size distribution (22-85 nm) and low dissolution (up to 5.1%) of nano-Ag at PECs were observed in presence of organic matter (5-800 μg/L) and PO43- (9.5-47.5 mg/L), while precipitation and higher dissolution (up to 74.9%) were observed in media containing either Cl- (0.07-10.64 g/L), S2- (0.32-32.1 mg/L) or NH4+ (36-90 mg/L), respectively. Speciation diagrams predict the formation of Ag2S(s) and AgCl(s), and soluble species such as AgClx(x-1)-, AgNH3+ and Ag(NH3)2+ when Ag+ at PECs in wastewater. The NTA and sp-ICP-MS were suitable techniques for sizing nano-Ag in wastewater at PECs at experimented nominal sizes. sp-ICP-MS was also useful to quantify the coexistence of Ag+ and nano-Ag. The LSPR analysis served to determine the relative persistence of original nano-Ag at PECs in the wastewater during the first 5 h after spiking.
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Affiliation(s)
- Pabel Cervantes-Avilés
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA; UC Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA, 93106, USA
| | - Yuxiong Huang
- UC Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA, 93106, USA; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, 518055, PR China
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA; UC Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA, 93106, USA.
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104
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De Leersnyder I, De Gelder L, Van Driessche I, Vermeir P. Revealing the Importance of Aging, Environment, Size and Stabilization Mechanisms on the Stability of Metal Nanoparticles: A Case Study for Silver Nanoparticles in a Minimally Defined and Complex Undefined Bacterial Growth Medium. NANOMATERIALS (BASEL, SWITZERLAND) 2019; 9:E1684. [PMID: 31775314 PMCID: PMC6955861 DOI: 10.3390/nano9121684] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/14/2019] [Accepted: 11/17/2019] [Indexed: 12/15/2022]
Abstract
Although the production and stabilization of metal nanoparticles (MNPs) is well understood, the behavior of these MNPs (possible aggregation or disaggregation) when they are intentionally or unintentionally exposed to different environments is a factor that continues to be underrated or overlooked. A case study is performed to analyze the stability of silver nanoparticles (AgNPs)-one of the most frequently used MNPs with excellent antibacterial properties-within two bacterial growth media: a minimally defined medium (IDL) and an undefined complex medium (LB). Moreover, the effect of aging, size and stabilization mechanisms is considered. Results clearly indicate a strong aggregation when AgNPs are dispersed in IDL. Regarding LB, the 100 nm electrosterically stabilized AgNPs remain stable while all others aggregate. Moreover, a serious aging effect is observed for the 10 nm electrostatically stabilized AgNPs when added to LB: after aggregation a restabilization effect occurs over time. Generally, this study demonstrates that the aging, medium composition (environment), size and stabilization mechanism-rarely acknowledged as important factors in nanotoxicity studies-have a profound impact on the AgNPs stabilization and should gain more attention in scientific research.
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Affiliation(s)
- Ilse De Leersnyder
- Laboratory of Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Leen De Gelder
- Department of Biotechnology, Laboratory for Environmental Biotechnology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
| | - Isabel Van Driessche
- Department of Chemistry, Sol-Gel Center for Research on Inorganic Powders and Thin Film Synthesis (SCRiPTS), Faculty of Sciences, 9000 Ghent, Belgium
| | - Pieter Vermeir
- Laboratory of Chemical Analysis (LCA), Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, 9000 Ghent, Belgium
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105
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Azizi-Lalabadi M, Alizadeh-Sani M, Khezerlou A, Mirzanajafi-Zanjani M, Zolfaghari H, Bagheri V, Divband B, Ehsani A. Nanoparticles and Zeolites: Antibacterial Effects and their Mechanism against Pathogens. Curr Pharm Biotechnol 2019; 20:1074-1086. [DOI: 10.2174/1573397115666190708120040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/18/2019] [Accepted: 06/20/2019] [Indexed: 01/21/2023]
Abstract
Nowadays, distribution and microorganism resistance against antimicrobial compounds
have caused crucial food safety problems. Hence, nanotechnology and zeolite are recognized as new
approaches to manage this problem due to their inherent antimicrobial activity. Different studies have
confirmed antimicrobial effects of Nano particles (NPs) (metal and metal oxide) and zeolite, by using
various techniques to determine antimicrobial mechanism. This review includes an overview of research
with the results of studies about antimicrobial mechanisms of nanoparticles and zeolite. Many
researches have shown that type, particle size and shape of NPs and zeolite are important factors showing
antimicrobial effectiveness. The use of NPs and zeolite as antimicrobial components especially in
food technology and medical application can be considered as prominent strategies to overcome pathogenic
microorganisms. Nevertheless, further studies are required to minimize the possible toxicity of
NPs in order to apply suitable alternatives for disinfectants and antibacterial agents in food applications.
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Affiliation(s)
- Maryam Azizi-Lalabadi
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahmood Alizadeh-Sani
- Food safety and hygiene division, Environmental Health Department, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Arezou Khezerlou
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mina Mirzanajafi-Zanjani
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hajar Zolfaghari
- Students' Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Vahid Bagheri
- Department of Food Science and Technology, Faculty of Agriculture, University of Tabriz, P.O. BOX 51666-16471, Tabriz, Iran
| | - Baharak Divband
- Inorganic Chemistry Department, Faculty of Chemistry, University of Tabriz, C.P. 51664 Tabriz, Iran
| | - Ali Ehsani
- Nutrition Research Center, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
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106
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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: 58] [Impact Index Per Article: 11.6] [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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107
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Bednář J, Svoboda L, Rybková Z, Dvorský R, Malachová K, Stachurová T, Matýsek D, Foldyna V. Antimicrobial Synergistic Effect Between Ag and Zn in Ag-ZnO· mSiO 2 Silicate Composite with High Specific Surface Area. NANOMATERIALS 2019; 9:nano9091265. [PMID: 31491918 PMCID: PMC6781028 DOI: 10.3390/nano9091265] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 08/23/2019] [Accepted: 09/01/2019] [Indexed: 12/24/2022]
Abstract
Antimicrobial materials are widely used for inhibition of microorganisms in the environment. It has been established that bacterial growth can be restrained by silver nanoparticles. Combining these with other antimicrobial agents, such as ZnO, may increase the antimicrobial activity and the use of carrier substrate makes the material easier to handle. In the paper, we present an antimicrobial nanocomposite based on silver nanoparticles nucleated in general silicate nanostructure ZnO·mSiO2. First, we prepared the silicate fine net nanostructure ZnO·mSiO2 with zinc content up to 30 wt% by precipitation of sodium water glass in zinc acetate solution. Silver nanoparticles were then formed within the material by photoreduction of AgNO3 on photoactive ZnO. This resulted into an Ag-ZnO·mSiO2 composite with silica gel-like morphology and the specific surface area of 250 m2/g. The composite, alongside with pure AgNO3 and clear ZnO·mSiO2, were successfully tested for antimicrobial activity on both gram-positive and gram-negative bacterial strains and yeast Candida albicans. With respect to the silver content, the minimal inhibition concentration of Ag-ZnO·mSiO2 was worse than AgNO3 only for gram-negative strains. Moreover, we found a positive synergistic antimicrobial effect between Ag and Zn agents. These properties create an efficient and easily applicable antimicrobial material in the form of powder.
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Affiliation(s)
- Jiří Bednář
- Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic.
- IT4Innovations National Supercomputing Center, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic.
| | - Ladislav Svoboda
- Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
- IT4Innovations National Supercomputing Center, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
| | - Zuzana Rybková
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Dvořákova 7, 701 03 Ostrava, Czech Republic
| | - Richard Dvorský
- Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
- IT4Innovations National Supercomputing Center, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
| | - Kateřina Malachová
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Dvořákova 7, 701 03 Ostrava, Czech Republic
| | - Tereza Stachurová
- Department of Biology and Ecology, Faculty of Science, University of Ostrava, Dvořákova 7, 701 03 Ostrava, Czech Republic
| | - Dalibor Matýsek
- Institute of Geological Engineering, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
| | - Vladimír Foldyna
- Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15/2172, 708 33 Ostrava, Czech Republic
- Institute of Geonics of the Czech Academy of Science, Department of Material Disintegration, Studentská 1768, 708 00 Ostrava, Czech Republic
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108
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Campbell LA, Gormley PT, Bennett JC, Murimboh JD, MacCormack TJ. Functionalized silver nanoparticles depress aerobic metabolism in the absence of overt toxicity in brackish water killifish, Fundulus heteroclitus. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 213:105221. [PMID: 31207537 DOI: 10.1016/j.aquatox.2019.105221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Revised: 06/04/2019] [Accepted: 06/08/2019] [Indexed: 06/09/2023]
Abstract
Engineered nanomaterials (ENMs) tend to precipitate in saline waters so the majority of aquatic toxicity studies have focused on freshwaters, where bioavailability is presumed to be higher. Recent studies have illustrated that some ENM formulations are bioavailable and bioactive in salt water and that their effects are more pronounced at the physiological than biochemical level. These findings raise concerns regarding the effects of ENMs on marine organisms. Therefore, our goal was to characterize the effects of polyvinylpyrolidone-functionalized silver ENMs (nAg) on aerobic performance in the killifish (Fundulus heteroclitus), a common euryhaline teleost. Fish were exposed to 80 μg L-1 of 5 nm nAg for 48 h in brackish water (12 ppt) and routine (ṀO2min) and maximum (ṀO2max) rates of oxygen consumption were quantified. Silver dissolution was minimal and nAg remained well dispersed in brackish water, with a hydrodynamic diameter of 21.0 nm, compared to 19.3 in freshwater. Both ṀO2min and ṀO2max were significantly lower (by 53 and 30%, respectively) in killifish exposed to nAg and a reduction in ṀO2 variability suggested spontaneous activity was suppressed. Neither gill Na+/K+-ATPase activity, nor various other biochemical markers were affected by nAg exposure. The results illustrate that a common ENM formulation is bioactive in salt water and, as in previous studies on functionalized copper ENMs, that effects are more pronounced at the whole animal than the biochemical level.
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Affiliation(s)
- L A Campbell
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - P T Gormley
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada
| | - J C Bennett
- Department of Physics, Acadia University, Wolfville, NS, Canada
| | - J D Murimboh
- Department Chemistry, Acadia University, Wolfville, NS, Canada
| | - T J MacCormack
- Department of Chemistry and Biochemistry, Mount Allison University, Sackville, NB, Canada.
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109
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Duroudier N, Markaide P, Cajaraville MP, Bilbao E. Season influences the transcriptomic effects of dietary exposure to PVP/PEI coated Ag nanoparticles on mussels Mytilus galloprovincialis. Comp Biochem Physiol C Toxicol Pharmacol 2019; 222:19-30. [PMID: 30940556 DOI: 10.1016/j.cbpc.2019.03.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 03/25/2019] [Accepted: 03/27/2019] [Indexed: 12/17/2022]
Abstract
Toxicity of AgNPs has been widely studied in waterborne exposed aquatic organisms. However, toxic effects caused by AgNPs ingested through the diet and depending on the season are still unexplored. The first cell response after exposure to xenobiotics occurs at gene transcription level. Thus, the aim of this study was to assess transcription level effects in the digestive gland of female mussels after dietary exposure to AgNPs both in autumn and in spring. Mussels were fed daily for 21 days with Isochrysis galbana microalgae previously exposed for 24 h to a dose close to environmentally relevant concentrations of 1 μg Ag/L PVP/PEI coated 5 nm AgNPs (in spring) and to a higher dose of 10 μg Ag/L of the same AgNPs both in autumn and in spring. After 1 and 21 days, mussels RNA was hybridized in a custom microarray containing 7806 annotated genes. Mussels were more responsive to the high dose compared to the low dose of AgNPs and a higher number of probes were altered in autumn than in spring. In both seasons, significantly regulated genes were involved in the cytoskeleton and lipid transport and metabolism COG categories, among others, while genes involved in carbohydrate transport and metabolism were specifically altered in autumn. Overall, transcription patterns were differently altered depending on the exposure time and season, indicating that season should be considered in ecotoxicological studies of metal nanoparticles in mussels.
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Affiliation(s)
- Nerea Duroudier
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Pablo Markaide
- Department of Genetics, Physical Anthropology and Animal Physiology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Miren P Cajaraville
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain
| | - Eider Bilbao
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology, Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country (UPV/EHU), Basque Country, Spain.
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110
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Malandrakis AA, Kavroulakis N, Chrysikopoulos CV. Use of copper, silver and zinc nanoparticles against foliar and soil-borne plant pathogens. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 670:292-299. [PMID: 30903901 DOI: 10.1016/j.scitotenv.2019.03.210] [Citation(s) in RCA: 82] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 06/09/2023]
Abstract
Nano-fungicides are expected to play an important role in future plant disease management as eco-friendly alternatives of conventional synthetic fungicides. In the present study, the sensitivity of seven fungal species, known to cause foliar and soil-borne diseases, to nanoparticles (NPs) containing copper (Cu-NPs, CuO-NPs), silver (Ag-NPs) and zinc (ZnO-NPs) was assessed in vitro. Mycelial growth assays revealed that Cu-NPs with mean inhibition rates, EC50, ranging between 162 and 310 μg/mL were most effective among the NPs tested in inhibiting fungal growth, followed by ZnO-NPs with EC50 ranging between 235 and 848 μg/mL. All fungal species were practically insensitive to CuO-NPs and Ag-NPs except for B. cinerea, which was equally sensitive to Ag-NPs and Cu-NPs (EC50 = 307 μg/mL). Cu-NPs were more fungitoxic in terms of mycelial growth, to almost all species tested, than a protective fungicide containing Cu(OH)2, which was used as a reference. Fungitoxicity experiments with the NPs tested and bulk size reagents containing the respective metals revealed that ZnO-NPs were more toxic to all fungal species tested than ZnSO4, whereas Cu-NPs were more fungitoxic than CuSO4 in all cases, except for B. cinerea, A. alternata and M. fructicola. The existence of a positive correlation between Cu-NPs and CuO-NPs toxicity and, at the same time, the absence of any correlation between NPs tested and their respective bulk metal counterparts indicated potential differences in the mode of action between bulk and nanosized antifungal ingredients. Although there was considerable variation between fungal species, all NPs were generally 10 to 100 fold more fungitoxic to spores than hyphae and in the majority of cases more effective than Cu(OH)2, as revealed by colony formation bioassays. NPs significantly suppressed grey mold symptoms on plum fruit, especially Ag-NPs, which completely inhibited disease development. Consequently, tested NPs have the potential to be used as protective antifungal agents.
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Affiliation(s)
- Anastasios A Malandrakis
- School of Environmental Engineering, Technical University of Crete, 73100 Chania, Greece; Pesticide Science Laboratory, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos, 118 55 Athens, Greece.
| | - Nektarios Kavroulakis
- Hellenic Agricultural Organization "Demeter", Institute for Olive Tree, Subtropical Plants and Viticulture, Agrokipio-Souda, 73164 Chania, Greece
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Rong H, Garg S, Waite TD. Impact of light and Suwanee River Fulvic Acid on O 2 and H 2O 2 Mediated Oxidation of Silver Nanoparticles in Simulated Natural Waters. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:6688-6698. [PMID: 31090416 DOI: 10.1021/acs.est.8b07079] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
In this work, we investigate the impact of natural organic matter (NOM) and light on silver nanoparticle (AgNP) dissolution kinetics with particular emphasis on determining the (i) mechanism via which NOM affects the oxidative dissolution of AgNPs, (ii) the role of photogenerated organic radicals and reactive oxygen species (ROS) in oxidative dissolution of AgNPs, and (iii) the mechanism of formation of AgNPs in NOM solution under dark and irradiated conditions. We measured the oxidation of citrate stabilized AgNPs by O2 and hydrogen peroxide (H2O2) in the dark and in irradiated Suwannee River fulvic acid (SRFA) solutions at pH 8.0. Results show that the reactivity of AgNPs toward O2 and H2O2 in the dark decreased in the presence of SRFA as a result of blocking of AgNP surface sites through either steric or electrostatic effects. Irradiation promoted dissolution of AgNPs by O2 and H2O2 in the presence of low concentrations (≤20 mg·L-1) of SRFA as a result of contribution from photogenerated H2O2 formed on irradiation of SRFA as well as photofragmentation of AgNPs. Furthermore, our results show that photogenerated superoxide can induce formation of AgNPs by reducing Ag(I) ions. Based on our experimental results, we have developed a kinetic model to explain AgNP transformation by O2 and H2O2 in the dark and in irradiated SRFA solutions with this model of use in predicting the transformation and fate of AgNPs in natural waters.
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Affiliation(s)
- Hongyan Rong
- UNSW Water Research Center, School of Civil and Environmental Engineering , The University of New South Wales , Sydney , New South Wales NSW 2052 , Australia
| | - Shikha Garg
- UNSW Water Research Center, School of Civil and Environmental Engineering , The University of New South Wales , Sydney , New South Wales NSW 2052 , Australia
| | - T David Waite
- UNSW Water Research Center, School of Civil and Environmental Engineering , The University of New South Wales , Sydney , New South Wales NSW 2052 , Australia
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Cervantes-Avilés P, Huang Y, Keller AA. Incidence and persistence of silver nanoparticles throughout the wastewater treatment process. WATER RESEARCH 2019; 156:188-198. [PMID: 30913422 DOI: 10.1016/j.watres.2019.03.031] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/14/2019] [Accepted: 03/16/2019] [Indexed: 05/23/2023]
Abstract
While the predicted or observed concentrations of Ag NPs in wastewater treatment plants (WWTPs) have ranged from μg/L to ng/L, there is still uncertainty with regards to the realistic concentration range of Ag NPs in WWTPs. In addition, the persistence, removal, and size of Ag NPs throughout WWTP process is also not well investigated, particularly in real operating conditions. In this study, the incidence and persistence of Ag NPs in the wastewater process were studied by using single particle inductively coupled plasma mass spectrometry (sp-ICP-MS). The incidence of Ag NPs was determined in samples collected at the influent and effluent of the conventional process, as well as reclaimed and backwash waters of the ultrafiltration (UF) system in a WWTP (Santa Barbara, CA), showing a concentration of 13.5, 3.2, 0.5 and 9.8 ng/L, respectively, with relative standard deviations (RSDs) < 5%. Total Ag concentration (Ag NP and Ag+) ranged from 40 to 70 ng/L, in line with lower predicted values. Most of the Ag NPs detected were below 100 nm, with a few above 100 nm in the conventional effluent. Biological and physical processes in the secondary treatment removed 76.3% of the colloidal Ag fraction, while with the tertiary treatment (UF) the WWTP achieved a removal of 96.3% of the colloidal fraction. Persistence of Ag NPs in various water matrixes, including a synthetic wastewater (SWW), was determined by spiking 300 ng/L of Ag NPs (40 nm) and monitoring the concentrations and size change for 15 days. The persistence of Ag NPs in suspension was Influent > Effluent > Reclaimed > SWW. Partial dissolution of NPs in all waters was observed from time 0 h. Although the current concentrations in the outlet flows from WWTP (effluent and reclaimed waters) were low, the presence of small and stable Ag NPs may raise ecotoxicological concerns via bioaccumulation.
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Affiliation(s)
- Pabel Cervantes-Avilés
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA; Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA 93106, USA
| | - Yuxiong Huang
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA; Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA 93106, USA; Shenzhen Environmental Science and New Energy Technology Engineering Laboratory, Tsinghua-Berkeley Shenzhen Institute, Shenzhen 518055, PR China
| | - Arturo A Keller
- Bren School of Environmental Science and Management, University of California, Santa Barbara, CA, 93106, USA; Center for Environmental Implications of Nanotechnology, University of California, Santa Barbara, CA 93106, USA.
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Abstract
The increase in synthesis and application of silver nanoparticles (AgNPs) in the last decade has resulted in contamination of AgNPs in the aquatic environment. The presence of AgNPs in aquatic environments has posed toxic effects to aquatic organisms and ecological damage. In this study, two tropical microalgae species including the freshwater Scenedesmus sp. and the marine diatom Thalassiosira sp. were employed to examine the toxic effects of AgNPs. The toxic effects were determined by analyzing different end points, such as half maximal effective concentration (EC50), algae growth inhibition, algae cell size, chlorophyll-a content, and total lipid accumulation. The results suggested that AgNPs presented different toxicity mechanisms for microalgae and showed to be more toxic in freshwater than in marine environment. The EC50 values of AgNPs after 72 h for the growth inhibition of Scenedesmus sp. and Thalassiosira sp. were 89.92 ± 9.68 and 107.21 ± 7.43 μg/L, respectively. AgNPs at a certain concentration have resulted in change in cell diameter, reduction in chlorophyll-a content, and enhancement of the total lipid production in the tested microalgae. Thus, local species should be involved in the toxic assessment. This research contributes on understanding the toxicity of AgNPs on freshwater and marine environments.
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Duroudier N, Cardoso C, Mehennaoui K, Mikolaczyk M, Schäfer J, Gutleb AC, Giamberini L, Bebianno MJ, Bilbao E, Cajaraville MP. Changes in protein expression in mussels Mytilus galloprovincialis dietarily exposed to PVP/PEI coated silver nanoparticles at different seasons. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 210:56-68. [PMID: 30825730 DOI: 10.1016/j.aquatox.2019.02.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 02/15/2019] [Accepted: 02/15/2019] [Indexed: 06/09/2023]
Abstract
Potential toxic effects of Ag NPs ingested through the food web and depending on the season have not been addressed in marine bivalves. This work aimed to assess differences in protein expression in the digestive gland of female mussels after dietary exposure to Ag NPs in autumn and spring. Mussels were fed daily with microalgae previously exposed for 24 h to 10 μg/L of PVP/PEI coated 5 nm Ag NPs. After 21 days, mussels significantly accumulated Ag in both seasons and Ag NPs were found within digestive gland cells and gills. Two-dimensional electrophoresis distinguished 104 differentially expressed protein spots in autumn and 142 in spring. Among them, chitinase like protein-3, partial and glyceraldehyde-3-phosphate dehydrogenase, that are involved in amino sugar and nucleotide sugar metabolism, carbon metabolism, glycolysis/gluconeogenesis and the biosynthesis of amino acids KEGG pathways, were overexpressed in autumn but underexpressed in spring. In autumn, pyruvate metabolism, citrate cycle, cysteine and methionine metabolism and glyoxylate and dicarboxylate metabolism were altered, while in spring, proteins related to the formation of phagosomes and hydrogen peroxide metabolism were differentially expressed. Overall, protein expression signatures depended on season and Ag NPs exposure, suggesting that season significantly influences responses of mussels to NP exposure.
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Affiliation(s)
- Nerea Duroudier
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - Câtia Cardoso
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000-135 Faro, Portugal
| | - Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Insitute of Science and Technology (LIST), L-4422 Belvaux, Luxembourg; Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), UMR 7360 CNRS, F-57070, Metz, France
| | - Mathilde Mikolaczyk
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St Hilaire, 33615 Pessac Cedex, France
| | - Jörg Schäfer
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St Hilaire, 33615 Pessac Cedex, France
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Insitute of Science and Technology (LIST), L-4422 Belvaux, Luxembourg
| | - Laure Giamberini
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), UMR 7360 CNRS, F-57070, Metz, France
| | - Maria J Bebianno
- CIMA, Marine and Environmental Research Center, University of Algarve, Campus de Gambelas, 8000-135 Faro, Portugal
| | - Eider Bilbao
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - Miren P Cajaraville
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain.
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Jorge de Souza TA, Rosa Souza LR, Franchi LP. Silver nanoparticles: An integrated view of green synthesis methods, transformation in the environment, and toxicity. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 171:691-700. [PMID: 30658305 DOI: 10.1016/j.ecoenv.2018.12.095] [Citation(s) in RCA: 132] [Impact Index Per Article: 26.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 12/26/2018] [Accepted: 12/27/2018] [Indexed: 05/24/2023]
Abstract
Nowadays, silver nanoparticles (AgNPs) are the most widely used nanoparticles (NPs) in the industry due to their peculiar biocidal features. However, the use of these NPs still runs into limitations mainly because of the low efficiency of environmental friendly synthesis methods and lack of size standardization. When NPs are release in the environment, they can be transformed by oxidation, adsorption or aggregation. These modification shows a dual role in toxic response of AgNPs. The adsorption of natural organic matter from environment on AgNPs, for example, can decrease their toxicity. Otherwise oxidation occurred in the environment is also able to increase the release of toxic Ag+ from NPs. Thus, the current review proposes an integrated approach of AgNP synthetic methods using bacteria, fungi, and plants, AgNP cytotoxic and genotoxic effects as well as their potential therapeutic applications are also presented.
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Affiliation(s)
- Tiago Alves Jorge de Souza
- Department of Genetics, FMRP-USP, University of São Paulo - USP, Bloco G. Av. Bandeirantes, 3900, Monte Alegre Zip Code: 14049-900, Ribeirão Preto, SP, Brazil; Department of Agronomic Engineering, Adventist University of São Paulo - UNASP, Engenheiro Coelho, SP, Brazil.
| | | | - Leonardo Pereira Franchi
- Department of Genetics, FMRP-USP, University of São Paulo - USP, Bloco G. Av. Bandeirantes, 3900, Monte Alegre Zip Code: 14049-900, Ribeirão Preto, SP, Brazil; Department of Chemistry, FFCLRP-USP, University of São Paulo - USP, Ribeirão Preto, SP, Brazil
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116
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Hedberg J, Blomberg E, Odnevall Wallinder I. In the Search for Nanospecific Effects of Dissolution of Metallic Nanoparticles at Freshwater-Like Conditions: A Critical Review. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:4030-4044. [PMID: 30908015 DOI: 10.1021/acs.est.8b05012] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Knowledge on relations between particle properties and dissolution/transformation characteristics of metal and metal oxide nanoparticles (NPs) in freshwater is important for risk assessment and product development. This critical review aims to elucidate nanospecific effects on dissolution of metallic NPs in freshwater and similar media. Dissolution rate constants are compiled and analyzed for NPs of silver (Ag), copper (Cu), copper oxide/hydroxide (CuO, Cu(OH)2), zinc oxide (ZnO), manganese (Mn), and aluminum (Al), showing largely varying (orders of magnitude) constants when modeled using first order kinetics. An effect of small primary sizes (<15 nm) was observed, leading to increased dissolution rate constants and solubility in some cases. However, the often extensive particle agglomeration can result in reduced nanospecific effects on dissolution and also an increased uncertainty related to the surface area, a parameter that largely influence the extent of dissolution. Promising ways to model surface areas of NPs in solution using fractal dimensions and size distributions are discussed in addition to nanospecific aspects related to other processes such as corrosion, adsorption of natural organic matter (NOM), presence of capping agents, and existence of surface defects. The importance of the experimental design on the results of dissolution experiments of metal and metal oxide NPs is moreover highlighted, including the influence of ionic metal solubility and choice of particle dispersion methodology.
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Affiliation(s)
- Jonas Hedberg
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Surface and Corrosion Science , Stockholm , Sweden
| | - Eva Blomberg
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Surface and Corrosion Science , Stockholm , Sweden
- RISE Research Institutes of Sweden , Division Bioscience and Materials , Stockholm , Sweden
| | - Inger Odnevall Wallinder
- KTH Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Chemistry , Division of Surface and Corrosion Science , Stockholm , Sweden
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117
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Alaraby M, Romero S, Hernández A, Marcos R. Toxic and Genotoxic Effects of Silver Nanoparticles in Drosophila. ENVIRONMENTAL AND MOLECULAR MUTAGENESIS 2019; 60:277-285. [PMID: 30353950 DOI: 10.1002/em.22262] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/01/2018] [Accepted: 10/17/2018] [Indexed: 06/08/2023]
Abstract
The in vivo model Drosophila melanogaster was used here to determine the detrimental effects induced by silver nanoparticles (AgNPs) exposure. The main aim was to explore its interaction with the intestinal barrier and the genotoxic effects induced in hemocytes. The observed effects were compared with those obtained by silver nitrate, as an agent acting via the release of silver ions. Larvae were fed in food media containing both forms of silver. Results indicated that silver nitrate was more toxic than AgNPs when the viability "egg-to-adult" was determined. Depigmentation was observed in adults including those exposed to nontoxic concentrations, as indicative of exposure action. Interestingly, AgNPs were able to cross the intestinal barrier affecting hemocytes that show significant increases in the levels of intracellular reactive oxygen species. Additionally, significant levels of genotoxic damage, as determined by the comet assay, were also induced. When the expression of different stress-response genes was determined, for both AgNPs and silver nitrate, significant upregulation of Sod2 and p53 genes was observed. Our results confirm for the first time that in an in vivo model as Drosophila, AgNPs are able to cross the intestinal barriers and produce primary DNA damage (comet assay) via oxidative stress induction. In general, the effects induced by silver nitrate were more pronounced than those induced by AgNPs what would emphasize the role of silver ions in the observed effects. Environ. Mol. Mutagen. 60:277-285, 2019. © 2018 Wiley Periodicals, Inc.
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Affiliation(s)
- Mohamed Alaraby
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
- Zoology Department, Faculty of Sciences, Sohag University, Sohag, Egypt
| | - Sara Romero
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
| | - Alba Hernández
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
- CIBER Epidemiología y Salud Pública, ISCIII, Madrid, Spain
| | - Ricard Marcos
- Grup de Mutagènesi, Departament de Genètica i de Microbiologia, Facultat de Biociències, Universitat Autònoma de Barcelona, Cerdanyola del Vallès, Barcelona, Spain
- CIBER Epidemiología y Salud Pública, ISCIII, Madrid, Spain
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Vieira Costa JA, Machado Terra AL, Cruz ND, Gonçalves IS, Moreira JB, Kuntzler SG, de Morais MG. Microalgae Cultivation and Industrial Waste: New Biotechnologies for Obtaining Silver Nanoparticles. MINI-REV ORG CHEM 2019. [DOI: 10.2174/1570193x15666180626141922] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Industrial effluents containing heavy metals can have harmful effects on organisms and the
ecosystem. Silver is a waste from textile, galvanic and photographic industries, and when released into
the environment, it can harm human health and cause biological modification. Removal of metals, such
as silver, has been traditionally carried out using physicochemical methods that produce a high concentration
of sludge and expend a significant amount of energy. Researchers are seeking innovative technologies
for more efficient removal of silver or for using this heavy metal to obtain new products. The
use of microalgae is a promising alternative to traditional remediation methods because several species
can absorb and assimilate heavy metals. When exposed to toxic substances, microalgae excrete molecules
in the medium that induce the reduction of silver particles to nanoparticles. Biosynthesized silver
nanoparticles (AgNPs) can be used in medicine, food packaging, the production of cosmetics and pharmaceuticals,
civil engineering, sensors and water purification. Thus, microalgal biosynthesis of metal
nanoparticles has the capacity to bioremediate metals and subsequently convert them into non-toxic
forms in the cell. In this context, this review addresses the use of microalgal biotechnology for industrial
waste remediation of silver, which includes the simultaneous biosynthesis of AgNPs. We also discuss
the potential applications of these nanoparticles.
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Affiliation(s)
- Jorge Alberto Vieira Costa
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Ana Luiza Machado Terra
- Laboratory of Biochemical Engineering, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Nidria Dias Cruz
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Igor Severo Gonçalves
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Juliana Botelho Moreira
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Suelen Goettems Kuntzler
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
| | - Michele Greque de Morais
- Laboratory of Microbiology and Biochemistry, College of Chemistry and Food Engineering, Federal University of Rio Grande (FURG), P.O. Box 474, 96203-900, Rio Grande, RS, Brazil
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Radtke A, Grodzicka M, Ehlert M, Jędrzejewski T, Wypij M, Golińska P. "To Be Microbiocidal and Not to Be Cytotoxic at the Same Time…"-Silver Nanoparticles and Their Main Role on the Surface of Titanium Alloy Implants. J Clin Med 2019; 8:jcm8030334. [PMID: 30857367 PMCID: PMC6463051 DOI: 10.3390/jcm8030334] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 02/28/2019] [Accepted: 03/04/2019] [Indexed: 12/28/2022] Open
Abstract
The chemical vapor deposition (CVD) method has been used to produce dispersed silver nanoparticles (AgNPs) on the surface of titanium alloy (Ti6Al4V) and nanotubular modified titanium alloys (Ti6Al4V/TNT5), leading to the formation of Ti6Al4V/AgNPs and Ti6Al4V/TNT5/AgNPs systems with different contents of metallic silver particles. Their surface morphology and silver particles arrangement were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectrometry (EDS), and atomic force microscopy (AFM). The wettability and surface free energy of these materials were investigated on the basis of contact angle measurements. The degree of silver ion release from the surface of the studied systems immersed in phosphate buffered saline solution (PBS) was estimated using inductively coupled plasma ionization mass spectrometry (ICP-MS). The biocompatibility of the analyzed materials was estimated based on the fibroblasts and osteoblasts adhesion and proliferation, while their microbiocidal properties were determined against Gram-positive and Gram-negative bacteria, and yeasts. The results of our works proved the high antimicrobial activity and biocompatibility of all the studied systems. Among them, Ti6Al4V/TNT5/0.6AgNPs contained the lowest amount of AgNPs, but still revealed optimal biointegration properties and high biocidal properties. This is the biomaterial that possesses the desired biological properties, in which the potential toxicity is minimized by minimizing the number of silver nanoparticles.
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Affiliation(s)
- Aleksandra Radtke
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Marlena Grodzicka
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Michalina Ehlert
- Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100 Toruń, Poland.
- Nano-implant Ltd., Gagarina 5/102, 87-100 Toruń, Poland.
| | - Tomasz Jędrzejewski
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
| | - Magdalena Wypij
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
| | - Patrycja Golińska
- Faculty of Biology and Environmental Protection, Nicolaus Copernicus University in Toruń, Lwowska 1, 87-100 Toruń, Poland.
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120
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Duroudier N, Katsumiti A, Mikolaczyk M, Schäfer J, Bilbao E, Cajaraville MP. Dietary exposure of mussels to PVP/PEI coated Ag nanoparticles causes Ag accumulation in adults and abnormal embryo development in their offspring. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 655:48-60. [PMID: 30469068 DOI: 10.1016/j.scitotenv.2018.11.181] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Revised: 11/11/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
Toxicity of silver nanoparticles (Ag NPs) to aquatic organisms has been widely studied. However, the potential toxic effects of Ag NPs ingested through the food web, especially at environmentally relevant concentrations, as well as the potential effects on the offspring remain unknown. The aims of this work were to screen the cytotoxicity of Poly N‑vinyl‑2‑pirrolidone/Polyethyleneimine (PVP/PEI) coated 5 nm Ag NPs in hemocytes exposed in vitro and to assess the effects of dietary exposure to Ag NPs on mussels growth, immune status, gonad condition, reproductive success and offspring embryo development. For this, mussels Mytilus galloprovincialis were fed daily with microalgae Isochrysis galbana previously exposed for 24 h to a dose close to environmentally relevant concentrations (1 μg Ag/L Ag NPs) and to a high dose of 10 μg Ag/L Ag NPs. After 24 h of in vitro exposure, Ag NPs were cytotoxic to mussel hemocytes starting at 1 mg Ag/L (LC50: 2.05 mg Ag/L). Microalgae significantly accumulated Ag after the exposure to both doses and mussels fed for 21 days with microalgae exposed to 10 μg Ag/L Ag NPs significantly accumulated Ag in the digestive gland and gills. Sperm motility and fertilization success were not affected but exposed females released less eggs than non-exposed ones. The percentage of abnormal embryos was significantly higher than in control individuals after parental exposure to both doses. Overall, results indicate that Ag NPs taken up through the diet can significantly affect ecologically relevant endpoints such as reproduction success and embryo development in marine mussels.
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Affiliation(s)
- Nerea Duroudier
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - Alberto Katsumiti
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - Mathilde Mikolaczyk
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St Hilaire, 33615 Pessac Cedex, France
| | - Jörg Schäfer
- Université de Bordeaux, UMR 5805 EPOC, Allée Geoffroy St Hilaire, 33615 Pessac Cedex, France
| | - Eider Bilbao
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | - Miren P Cajaraville
- CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology PiE, University of the Basque Country UPV/EHU, Basque Country, Spain.
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121
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Hu H, Wu X, Wang H, Wang H, Zhou J. Photo-reduction of Ag nanoparticles by using cellulose-based micelles as soft templates: Catalytic and antimicrobial activities. Carbohydr Polym 2019; 213:419-427. [PMID: 30879687 DOI: 10.1016/j.carbpol.2019.02.062] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/18/2019] [Accepted: 02/18/2019] [Indexed: 01/21/2023]
Abstract
Amphiphilic cellulose derivatives were synthesized from allyl cellulose (AC) and cystein (Cys)/n-dodecyl mercaptan (NDM) via the thiol-ene click reactions. The derivatives were self-assembled into micelles in distilled water, and the micelles sizes increased with an increase of the DSNDM. The amphiphilic cellulose micelles were served as the soft templates for the controllable synthesis of Ag nanoparticles (NPs) through the photo-reduction. Ag NPs were embedded and stabilized by the amphiphilic cellulose micelles, and their sizes increased from 3.1 to 14.4 nm with an increase of the original template sizes. The catalytic properties of the Ag-loaded micelles were evaluated by the reduction of p-nitropheonl to p-aminophenol. The results demonstrated that the Ag-loaded micelles exhibited excellent catalytic activity. The reduction followed the first-order rate law, and the reaction constant decreased with increasing size of Ag NPs. Moreover, the Ag-loaded micelles displayed good antimicrobial activities to both S. aureus and E. coli. Therefore, the Ag-loaded cellulose-based micelles have potential applications in various fields.
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Affiliation(s)
- Haoze Hu
- Department of Chemistry and Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, 430072, China
| | - Xiaoqing Wu
- Department of Chemistry and Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, 430072, China
| | - Haoying Wang
- Department of Chemistry and Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, 430072, China
| | - Hongyu Wang
- School of Civil Engineering, Wuhan University, Wuhan 430072, China
| | - Jinping Zhou
- Department of Chemistry and Key Laboratory of Biomedical Polymers of Ministry of Education, Wuhan University, 430072, China.
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122
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Kumar I, Bhattacharya J. Assessment of the role of silver nanoparticles in reducing poultry mortality, risk and economic benefits. APPLIED NANOSCIENCE 2019. [DOI: 10.1007/s13204-018-00942-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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123
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Ochoa-Meza AR, Álvarez-Sánchez AR, Romo-Quiñonez CR, Barraza A, Magallón-Barajas FJ, Chávez-Sánchez A, García-Ramos JC, Toledano-Magaña Y, Bogdanchikova N, Pestryakov A, Mejía-Ruiz CH. Silver nanoparticles enhance survival of white spot syndrome virus infected Penaeus vannamei shrimps by activation of its immunological system. FISH & SHELLFISH IMMUNOLOGY 2019; 84:1083-1089. [PMID: 30389645 DOI: 10.1016/j.fsi.2018.10.007] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Revised: 09/21/2018] [Accepted: 10/03/2018] [Indexed: 05/19/2023]
Abstract
The global aquaculture has shown an impressive growth in the last decades contributing with a major part of total food fish supply. However, it also helps in the spread of diseases that in turn, causes great economic losses. The White Spot Syndrome Virus (WSSV) is one of the major viral pathogen for the shrimp aquaculture industry. Several attempts to eliminate the virus in the shrimp have been addressed without achieving a long-term effectiveness. In this work, we determine the capacity of the commercial non-toxic PVP-coated silver nanoparticles to promote the response of the immune system of WSSV-infected shrimps with or without an excess of iron ions. Our results showed that a single dose of metallic silver in the nanomolar range (111 nmol/shrimp), which is equivalent to 12 ng/mL of silver nanoparticles, produces 20% survival of treated infected shrimps. The same concentration administered in healthy shrimps do not show histological evidence of damage. The observed survival rate could be associated with the increase of almost 2-fold of LGBP expression levels compared with non-treated infected shrimps. LGBP is a key gene of shrimp immunological response and its up-regulation is most probably induced by the recognition of silver nanoparticles coating by specific pathogen-associated molecular pattern recognition proteins (PAMPs) of shrimp. Increased LGBP expression levels was observed even with a 10-fold lower dose of silver nanoparticles (1.2 ng/shrimp, 0.011 nmol of metallic silver/shrimp). The increase in LGBP expression levels was also observed even in the presence of iron ion excess, a condition that favors virus proliferation. Those results showed that a single dose of a slight amount of silver nanoparticles were capable to enhance the response of shrimp immune system without toxic effects in healthy shrimps. This response could be enhanced by administration of other doses and might represent an important alternative for the treatment of a disease that has still no cure, white spot syndrome virus.
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Affiliation(s)
| | - Ana R Álvarez-Sánchez
- Facultad de Ciencias Agrarias, Universidad Técnica Estatal de Quevedo (UTEQ), Quevedo, Los Ríos, Ecuador
| | - Carlos R Romo-Quiñonez
- Centro de Investigaciones Biológicas del Noroeste, S. C. Calle IPN#195, 23060, La Paz, B.C.S, Mexico
| | - Aarón Barraza
- CONACyT-CIBNOR, Calle IPN#195, 23060, La Paz, B.C.S, Mexico
| | | | | | - Juan Carlos García-Ramos
- CONACyT-UNAM- Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, 22860, Ensenada, Mexico
| | - Yanis Toledano-Magaña
- CONACyT-UNAM- Centro de Nanociencias y Nanotecnología, Km. 107 Carretera Tijuana-Ensenada, 22860, Ensenada, Mexico
| | - Nina Bogdanchikova
- Centro de Nanociencias y Nanotecnología, Universidad Nacional Autónoma de México, Km. 107 Carretera Tijuana-Ensenada, 22860, Ensenada, Mexico
| | - Alexey Pestryakov
- Tomsk Polytechnic University, Lenin Avenue 30, Tomsk, 634050, Russia
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124
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Zhang C, Li Y, Shuai D, Shen Y, Xiong W, Wang L. Graphitic carbon nitride (g-C 3N 4)-based photocatalysts for water disinfection and microbial control: A review. CHEMOSPHERE 2019; 214:462-479. [PMID: 30273880 DOI: 10.1016/j.chemosphere.2018.09.137] [Citation(s) in RCA: 156] [Impact Index Per Article: 31.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Revised: 09/14/2018] [Accepted: 09/22/2018] [Indexed: 05/14/2023]
Abstract
Microbial contamination in drinking water is of great concern around the world because of high pathogenic risks to humans. Semiconductor photocatalysis has aroused an increasing interest as a promising environmental remediation technology for water disinfection and microbial control. Among various photocatalysts, graphitic carbon nitride (g-C3N4), as a fascinating two-dimensional conjugated polymer consisting of low-cost, earth-abundant elements, has drawn broad attention as a robust, metal-free, and visible-light-active material in the fields of both environmental remediation and solar energy conversion. Photocatalytic applications of g-C3N4-based nanomaterials for water splitting, hydrogen production, carbon dioxide reduction, and pollutant degradation have been extensively investigated and systematically reviewed. In contrast, their antimicrobial properties have been explored more recently due to the complex structure and unique metabolism of living microorganisms compared with chemicals. The corresponding rapidly increasing research efforts in the last five years have inspired us to conduct the review. This review is the first to comprehensively summarize the progress in design and antimicrobial performance of g-C3N4-based photocatalysts for water disinfection and microbial control, involving not only bacteria but also viruses and microalgae. Moreover, the underlying inactivation mechanisms of photocatalysts for microorganisms are evaluated to provide further understanding of g-C3N4-based advanced disinfection processes. In addition, some exciting future opportunities and challenges at the forefront of this research platform are pointed out. It is expected that this review can pave a new avenue for the development of a facile, cost-effective, environmental-friendly, and sustainable disinfection alternative.
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Affiliation(s)
- Chi Zhang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Yi Li
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China.
| | - Danmeng Shuai
- Department of Civil and Environmental Engineering, The George Washington University, 800 22nd St NW Suite 3530, Washington, DC, 20052, USA
| | - Yun Shen
- Department of Civil & Environmental Engineering, The University of Michigan, 1351 Beal Avenue, Ann Arbor, MI, 48109-2125, USA
| | - Wei Xiong
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
| | - Linqiong Wang
- Key Laboratory of Integrated Regulation and Resource Development of Shallow Lakes, Ministry of Education, College of Environment, Hohai University, Xikang Road #1, Nanjing, 210098, PR China
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125
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Zhang L, Wu L, Si Y, Shu K. Size-dependent cytotoxicity of silver nanoparticles to Azotobacter vinelandii: Growth inhibition, cell injury, oxidative stress and internalization. PLoS One 2018; 13:e0209020. [PMID: 30566461 PMCID: PMC6300289 DOI: 10.1371/journal.pone.0209020] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 11/28/2018] [Indexed: 01/09/2023] Open
Abstract
The influence of nanomaterials on the ecological environment is becoming an increasingly hot research field, and many researchers are exploring the mechanisms of nanomaterial toxicity on microorganisms. Herein, we studied the effect of two different sizes of nanosilver (10 nm and 50 nm) on the soil nitrogen fixation by the model bacteria Azotobacter vinelandii. Smaller size AgNPs correlated with higher toxicity, which was evident from reduced cell numbers. Flow cytometry analysis further confirmed this finding, which was carried out with the same concentration of 10 mg/L for 12 h, the apoptotic rates were20.23% and 3.14% for 10 nm and 50 nm AgNPs, respectively. Structural damage to cells were obvious under scanning electron microscopy. Nitrogenase activity and gene expression assays revealed that AgNPs could inhibit the nitrogen fixation of A. vinelandii. The presence of AgNPs caused intracellular reactive oxygen species (ROS) production and electron spin resonance further demonstrated that AgNPs generated hydroxyl radicals, and that AgNPs could cause oxidative damage to bacteria. A combination of Ag content distribution assays and transmission electron microscopy indicated that AgNPs were internalized in A. vinelandii cells. Overall, this study suggested that the toxicity of AgNPs was size and concentration dependent, and the mechanism of antibacterial effects was determined to involve damage to cell membranes and production of reactive oxygen species leading to enzyme inactivation, gene down-regulation and death by apoptosis.
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Affiliation(s)
- Li Zhang
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Lingli Wu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
| | - Youbin Si
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
- * E-mail:
| | - Kunhui Shu
- Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention, School of Resources and Environment, Anhui Agricultural University, Hefei, China
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126
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McGillicuddy E, Morrison L, Cormican M, Dockery P, Morris D. Activated charcoal as a capture material for silver nanoparticles in environmental water samples. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 645:356-362. [PMID: 30029114 DOI: 10.1016/j.scitotenv.2018.07.145] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/11/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
Silver nanoparticles (AgNPs), due to their antibacterial activity, have been incorporated into numerous consumer products. Their environmental impact however, is currently unclear. Uncertainties surround the concentration, fate, and effects of AgNPs in aquatic environments. This study examined the suitability of activated charcoal as a capture material for AgNPs from water. Samples of 100 ppb AgNPs were initially generated and exposed to activated charcoal for 24 h to examine the ability of charcoal to capture AgNPs. The decrease in Ag concentration was measured using ICP-MS. Following initial investigations, the surface area of the charcoal was increased firstly with a pestle and mortar and secondly by milling the charcoal using a ball mill. The increased surface area of the milled charcoal increased the capture of the AgNPs from 11.9% to 63.6% for the 100 ppb samples. Further investigations were carried out examining the effect on the capture of AgNP concentration (with concentration ranging from 10 to 100 ppb), particle coating and the effect of exposure time to the activated charcoal. The capture of AgNP increased with decreasing concentration. A hydrochloric acid (HCl) leaching procedure was also developed which successfully removed the captured silver allowing the fraction captured by the charcoal to be quantified with an average of 94.8% recovery. The results show that milled activated charcoal, can successfully capture AgNPs from water samples, and that therefore, activated charcoal may prove to be a cost effective material for the remediation of waters impacted by AgNP or other nano-wastes.
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Affiliation(s)
- E McGillicuddy
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, National University of Ireland Galway, Galway, Ireland; Centre for Health from Environment, Ryan Institute, National University of Ireland Galway, Galway, Ireland.
| | - L Morrison
- Centre for Health from Environment, Ryan Institute, National University of Ireland Galway, Galway, Ireland; Earth and Ocean Sciences, School of Natural Sciences, National University of Ireland, Galway, Ireland
| | - M Cormican
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, National University of Ireland Galway, Galway, Ireland; Centre for Health from Environment, Ryan Institute, National University of Ireland Galway, Galway, Ireland
| | - P Dockery
- Anatomy, School of Medicine, National University of Ireland Galway, Galway, Ireland
| | - D Morris
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine, National University of Ireland Galway, Galway, Ireland; Centre for Health from Environment, Ryan Institute, National University of Ireland Galway, Galway, Ireland
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127
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Welz PJ, Khan N, Prins A. The effect of biogenic and chemically manufactured silver nanoparticles on the benthic bacterial communities in river sediments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:1380-1390. [PMID: 30743850 DOI: 10.1016/j.scitotenv.2018.06.283] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 06/21/2018] [Accepted: 06/22/2018] [Indexed: 06/09/2023]
Abstract
This study was conducted to determine and compare the effect of chemically-synthesised and biogenic silver nanoparticles on the benthic bacterial community structure in mesocosms containing sediment from three rivers in geographical sites with different population densities (low, medium, high), and therefore likely to be associated with respective low, moderate and high degrees of anthropogenic input. The nanoparticles were applied at the upper limit expected to accumulate in impacted environments (4 μg kgsed-1). The biomass, concentrations of elements, including selection metals (P, K, Na, K, Ca, Mg, Zn, Cu, Al, Ag) were all significantly higher at the high density than at the low density sites. Bacterial community profiling (terminal restriction fragment length polymorphism and amplicon sequencing) showed that the bacterial community structure in the sediments from the high population density site were resilient to environmental perturbations [adjustment from in-situ to ex-situ (laboratory) conditions], as well as to exposure to silver nanoparticles, with the converse being true for the low population density site. Results obtained from amplicon sequencing were interrogated to the lowest taxonomic level with a relative abundance >5%. Proteobacteria was the most abundant phylum in all the sediments. Notable resistance (increased relative abundance) to one or both forms of silver nanoparticles was seen in the class Thermoleophilia, and the orders Myxococcales, Bacteriodales, Pirellules CCU21 and iii 1-15 (class Acidobacteria 6). Conversely, sensitivity was demonstrated in the family Koribacteraceae and the orders Rhizobiales, Ellin 329 and Gemmatales. It is recommended that pro-active environmental monitoring is performed in aquatic systems receiving point source pollution from wastewater treatment plants in order to assess the accumulation of silver nanoparticles. If necessary, measures should be implemented to mitigate the entry of silver nanoparticles, especially into more vulnerable environments.
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Affiliation(s)
- Pamela J Welz
- Biocatalysis and Technical Biology Research Group, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7530, South Africa.
| | - Nuraan Khan
- Biocatalysis and Technical Biology Research Group, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7530, South Africa
| | - Alaric Prins
- Biocatalysis and Technical Biology Research Group, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of Technology, Symphony way, Bellville, Cape Town 7530, South Africa
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128
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Ke M, Qu Q, Peijnenburg WJGM, Li X, Zhang M, Zhang Z, Lu T, Pan X, Qian H. Phytotoxic effects of silver nanoparticles and silver ions to Arabidopsis thaliana as revealed by analysis of molecular responses and of metabolic pathways. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 644:1070-1079. [PMID: 30743820 DOI: 10.1016/j.scitotenv.2018.07.061] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 07/02/2018] [Accepted: 07/05/2018] [Indexed: 06/09/2023]
Abstract
The acute (3 days) and chronic (whole life history) responses of Arabidopsis thaliana following exposure to silver nanoparticles (AgNPs) and Ag+ ions (AgNO3) in respectively a hydroponic medium and in soil were studied. After 3 days of hydroponic exposure, AgNPs (1.0 and 2.5 mg/L) exerted more severe inhibitory effects on plant (shoot and root) growth and photosynthesis than the same concentrations of Ag+ ions. In soil cultivation, the photoperiod, the autonomous, and the vernalization pathways were down-regulated to 0.15- to 0.5-fold of the control after 12.5 mg/kg AgNPs treatment. This exposure caused a decrease of approximately 25%-40% as compared to the control of the transcription of flowering key genes including AP1, LFY, FT and SOC1, and finally resulted in a delayed flowering time of 5 days. Only autonomous and vernalization pathways were inhibited by Ag+ ion treatment and ultimately the time of flowering in treated plants was delayed by 3 days. The energy production related metabolic pathways in the tricarboxylic acid cycle and in sugar metabolism were stimulated stronger by AgNPs than by Ag+ ion treatment, thus releasing more energy and accelerating the physiological metabolic responses against stress in the AgNPs treatment while subsequently reducing the plant growth and yield at the maturation stage. Importantly, shikimate-phenylpropanoid biosynthesis, and tryptophan and galactose metabolisms were regulated only by the AgNPs treatment, which was a specific effect of nanoparticles. This work provides a systematic understanding at the molecular, physiological as well as metabolic level of the effects of AgNPs and Ag+ ions in A. thaliana.
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Affiliation(s)
- Mingjing Ke
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Qian Qu
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - W J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, 2300 RA Leiden, The Netherlands; National Institute of Public Health and the Environment (RIVM), Center for Safety of Substances and Products, P.O. Box 1, Bilthoven, The Netherlands
| | - Xingxing Li
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Meng Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Zhenyan Zhang
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Tao Lu
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Xiangliang Pan
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China
| | - Haifeng Qian
- College of Environment, Zhejiang University of Technology, Hangzhou, PR China; Xinjiang Key Laboratory of Environmental Pollution and Bioremediation, Chinese Academy of Sciences, Urumqi, PR China.
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129
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Mehennaoui K, Cambier S, Serchi T, Ziebel J, Lentzen E, Valle N, Guérold F, Thomann JS, Giamberini L, Gutleb AC. Do the pristine physico-chemical properties of silver and gold nanoparticles influence uptake and molecular effects on Gammarus fossarum (Crustacea Amphipoda)? THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1200-1215. [PMID: 30189536 DOI: 10.1016/j.scitotenv.2018.06.208] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Revised: 06/16/2018] [Accepted: 06/17/2018] [Indexed: 06/08/2023]
Abstract
The specific and unique properties of silver nanoparticles (AgNPs) and gold nanoparticles (AuNPs), make them of high interest for different scientific and industrial applications. Their increasing use will inevitably lead to their release in the environment and aquatic ecosystems where they may represent a threat to aquatic organisms. Being a widespread and important component of the aquatic macroinvertebrate assemblage, amphipods and more specifically Gammarus fossarum will certainly be exposed to AgNPs and AuNPs. For these reasons, G. fossarum was selected as model organism for this study. The aim of the present work was the evaluation of the influence of both size (20, 40 and 80 nm) and surface coating (citrate CIT, polyethylene glycol PEG) on the acute toxicity of AgNPs and AuNPs on G. fossarum. We investigated the effects of AgNPs and AuNPs on the uptake by G. fossarum, NP tissue distribution and the expression of stress related genes by the use of ICP-MS, NanoSIMS50, Cytoviva®, and Rt-qPCR, respectively. Ag and Au bioaccumulation revealed a significant surface-coating dependence, with CIT-AgNPs and CIT-AuNPs showing the higher bio-accumulation potential in G. fossarum as compared to PEG-NPs. Opposite to that, no size-dependent effects on the bioaccumulation potential was observed. SIMS imaging and CytoViva® revealed an influence of the type of metal on the tissue distribution after uptake, with AgNPs detected in the cuticle and the gills of G. fossarum, while AuNPs were detected in the gut area. Furthermore, AgNPs were found to up-regulate CuZnSOD gene expression while AuNPs led to its down-regulation. Modulation of SOD may indicate generation of reactive species of oxygen and a possible activation of antioxidant defence in order to prevent and defend the organism from oxidative stress. However, further investigations are still needed to better define the mechanisms underlying the observed AgNPs and AuNPs effects.
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Affiliation(s)
- Kahina Mehennaoui
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg; Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France
| | - Sébastien Cambier
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Tommaso Serchi
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Johanna Ziebel
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Esther Lentzen
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Nathalie Valle
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - François Guérold
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France
| | - Jean-Sébastien Thomann
- Material Research and Technology (MRT) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg
| | - Laure Giamberini
- Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine, Metz, France.
| | - Arno C Gutleb
- Environmental Research and Innovation (ERIN) Department, Luxembourg Institute of Science and Technology, 41 rue du Brill, Belvaux, Luxembourg.
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130
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Guo Z, Cui K, Zeng G, Wang J, Guo X. Silver nanomaterials in the natural environment: An overview of their biosynthesis and kinetic behavior. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 643:1325-1336. [PMID: 30189549 DOI: 10.1016/j.scitotenv.2018.06.302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/21/2018] [Accepted: 06/24/2018] [Indexed: 06/08/2023]
Abstract
Silver nanomaterials (Ag NMs) are fabricated by many biological components in our environment. Recently, research on their biosynthesis and reactions has become a focus of attention. Due to the complexity of biological systems and samples, specific processes and mechanisms involving Ag NMs are difficult to identify and elucidate on the molecular and chemical-bond level. The microorganisms and composite components of plant extracts are of great interest in many biological syntheses. Although potential biomolecules have been shown to play essential roles in biological systems in Ag NM biosynthesis, the detailed mechanism of the electron transfer process and crucial molecules that control this reaction have only recently come into focus. The reactive behavior of the Ag NMs is of great significance for understanding their overall behavior and toxicity. Additionally, only limited knowledge is available about their kinetics. All reactions involve chemical bond formation, electron transfer, or electrostatic interactions. An overview is presented of the biosynthesis of Ag NMs based on molecular supports including a nitrate reductase/NADH oxidase-involved electron transfer reaction and their mechanisms in Ag+ reduction: quinol-mediated mechanism and superoxide-dependent mechanism, and molecular supports in plant extracts, is presented. The environmental reaction kinetics and mechanisms of the interactions of Ag NMs with substances are introduced based on the formation and classification of chemical bonds. The particle-particle reaction kinetics of Ag NMs in the environment are discussed to directly explain their stability and aggregation behavior. The toxicity of Ag NMs is also presented. In addition, future prospects are summarized. This review is the first to provide an insight into the mediating molecules and chemical bonds involved in the biosynthesis, kinetics, and mechanisms of action of Ag NMs.
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Affiliation(s)
- Zhi Guo
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, PR China.
| | - Kangping Cui
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, PR China
| | - Guangming Zeng
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Jiajia Wang
- College of Environmental Science and Engineering, Hunan University, Changsha 410082, PR China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, PR China
| | - Xingpan Guo
- Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographical Sciences, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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131
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Liang L, Tang H, Deng Z, Liu Y, Chen X, Wang H. Ag nanoparticles inhibit the growth of the bryophyte, Physcomitrella patens. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 164:739-748. [PMID: 30122261 DOI: 10.1016/j.ecoenv.2018.08.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 08/03/2018] [Accepted: 08/06/2018] [Indexed: 06/08/2023]
Abstract
The wide use of Ag nanoparticles (Ag NPs) as antimicrobial agents has resulted in a massive release of Ag NPs into environment, such as water and soil. As bryophytes live ubiquitously in water and soil, their tolerance and response to Ag NPs could be employed as an indicator for the harm of Ag NPs to the environment. Herein, we report the study on the physiological and biochemical responses of bryophytes to Ag NPs with different surface coatings at the gametophyte stages: protonema and leafy gametophyte, by using Physcomitrella patens as a model system. We found that Ag NPs, including AgNPs-B (Ag NPs without surface coating), AgNPs-PVP (Ag NPs coated with poly (N-vinyl-2-pyrrolidone)) and AgNPs-Cit (Ag NPs coated with citrate), were toxic to P. patens in terms of growth and development of the gametophyte. The toxicity was closely related to the concentration and surface coating of Ag NPs, and the growth stage of P. patens. The protonema was more sensitive to Ag NPs than the leafy gametophyte. Ag NPs inhibited the growth of the protonema following the trend of AgNPs-B > AgNPs-Cit > AgNPs-PVP. Ag NPs changed the thylakoid and chlorophyll contents, but did not affect the contents of essential elements in the protonema. At the leafy gametophyte stage, Ag NPs inhibited the growth of P. patens following a different order: AgNPs-Cit > AgNPs-B ≈ AgNPs-PVP. Ag NPs decreased the chlorophyll b content and disturbed the balance of some important essential elements in the leafy gametophytes. Both the dissolved fraction of Ag NPs and Ag NPs per se contributed to the toxicity. This study for the first time reveals the effects of Ag NPs on bryophytes at different growth stages, which calls for more attention to the nanoecotoxicology of Ag NPs.
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Affiliation(s)
- Lin Liang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Huan Tang
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Zhaoguo Deng
- Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China
| | - Yuanfang Liu
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China
| | - Xing Chen
- Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China; Peking-Tsinghua Center for Life Sciences, Peking University, Beijing 100871, China.
| | - Haifang Wang
- Institute of Nanochemistry and Nanobiology, Shanghai University, Shanghai 200444, China.
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132
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Liu Y, Yang T, Wang L, Huang Z, Li J, Cheng H, Jiang J, Pang S, Qi J, Ma J. Interpreting the effects of natural organic matter on antimicrobial activity of Ag 2S nanoparticles with soft particle theory. WATER RESEARCH 2018; 145:12-20. [PMID: 30118974 DOI: 10.1016/j.watres.2018.07.063] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 07/23/2018] [Accepted: 07/25/2018] [Indexed: 06/08/2023]
Abstract
Natural organic matter (NOM) ubiquitously exists in natural waters and would adsorb onto the particle surface. Previous studies showed that NOM would alleviate the toxicity of nanomaterials, while the mechanism is seldom quantitatively interpreted. Herein, the effects of humic substances [Suwannee River fulvic acid (SRFA) and Suwannee River humic acid (SRHA)] and biomacromolecules [alginate and bovine serum albumin (BSA)] on the aggregation and antimicrobial effects of silver sulfide nanoparticles (Ag2S-NPs) were investigated. The aggregation kinetics of Ag2S-NPs in electrolyte solutions were in agreement with the results based on Derjaguin-Landau-Verwey-Overbeek (DLVO) theory. The dynamic light scattering (DLS) results showed that the SRFA, SRHA, alginate and BSA molecules coated on the Ag2S-NPs surfaces. The NOM coating layer prevented salt-induced coagulation of Ag2S-NPs, and the effects of BSA and SRHA on Ag2S-NPs stabilizing were more obvious than that of SRFA and alginate. Flow cytometry analysis results suggested that BSA and SRHA were more effective on alleviating the Ag2S-NPs induced cell (Escherichia coli) membrane damage than SRFA and alginate. After interpreting the electrophoretic mobility (EPM) data of the NOM coated Ag2S-NPs by Ohshima's soft particle theory, it was found that the thickness of the NOM coating layers followed the orders of BSA > SRHA > alginate > SRFA. The E.coli cell membrane damage level was negatively correlated with the thickness and softness of the coating layer. NOM coating may physically alleviate the contact between NPs and E. coli cells and thus attenuate the extent of cell membrane damage caused by the NP-cell interaction. This work provides a new perspective for quantitatively interpreting the influence of NOM on the environmental behaviors and risks of nanomaterials.
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Affiliation(s)
- Yulei Liu
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Tao Yang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Lu Wang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
| | - Zhuangsong Huang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Juan Li
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Haijun Cheng
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jin Jiang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Suyan Pang
- School of Municipal and Environmental Engineering, Jilin Jianzhu University, Changchun, 130118, China
| | - Jingyao Qi
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China
| | - Jun Ma
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, 150090, China.
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133
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Nanoparticles and their antimicrobial properties against pathogens including bacteria, fungi, parasites and viruses. Microb Pathog 2018; 123:505-526. [DOI: 10.1016/j.micpath.2018.08.008] [Citation(s) in RCA: 159] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 07/15/2018] [Accepted: 08/06/2018] [Indexed: 12/17/2022]
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134
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Gupta SD, Agarwal A, Pradhan S. Phytostimulatory effect of silver nanoparticles (AgNPs) on rice seedling growth: An insight from antioxidative enzyme activities and gene expression patterns. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2018; 161:624-633. [PMID: 29933132 DOI: 10.1016/j.ecoenv.2018.06.023] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 05/22/2018] [Accepted: 06/09/2018] [Indexed: 05/23/2023]
Abstract
The knowledge on the mode of action, biocompatibility and ecological tolerance of silver nanoparticles (AgNPs) is gradually accumulating over the years with contradictory findings. Most of the studies indicated the toxic impact of AgNPs on plant growth and development, where induction of oxidative stress was considered to be one of the causal factors. The present study demonstrates the phytostimulatory effect of bio-synthesized silver nanoparticles (AgNPs) during seed germination and seedling growth of rice (Oryza sativa L., cv. Swarna) under in vitro condition. All the tested concentrations of AgNPs (10, 20, 40 ppm) promote both the shoot and root growth which was evident from the increased length and biomass of the seedlings. Exposure to AgNPs also significantly increased the chlorophyll a and carotenoid contents. The content and the pattern of distribution of phenolic metabolites among the different treatments are indicative of non-toxic impact of AgNP mimicking mild or no stress to the seedlings. Growth stimulation of rice seedlings by AgNPs was further supported by a low level of reactive oxygen species (ROS) concomitant with decreased amount of lipid peroxidation and H2O2 content, compared to control. In order to unravel the stimulatory impact of AgNPs on rice seedling growth, the present study also describes the AgNPs induced changes in antioxidative enzyme activity and related gene expression levels. Elevated levels of catalase (CAT), ascorbate peroxidase (APX) and glutathione reductase (GR) activities were recorded in all the AgNPs treated seedlings with improved growth. The activity of superoxide dismutase (SOD) was not significantly altered at low concentration of AgNPs. It appears that enzymes of ascorbate cycle, APX and GR are more active in ensuring protection against oxidative damage than SOD. There was significant up-regulation of CAT and APX gene expressions in seedlings exposed to AgNPs, whereas the expression level of CuZnSOD gene was decreased gradually with an increase in the concentration of AgNPs. The antioxidant enzyme activities and gene expression patterns coupled with the levels of H2O2 and lipid peroxidation indicates that the efficiency of redox reactions was increased in the presence of AgNPs and that accelerates the seedling growth.
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Affiliation(s)
- S Dutta Gupta
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, India.
| | - A Agarwal
- Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
| | - S Pradhan
- Advanced Laboratory for Plant Genetic Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721302, India
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135
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Park S, Ko YS, Lee SJ, Lee C, Woo K, Ko G. Inactivation of influenza A virus via exposure to silver nanoparticle-decorated silica hybrid composites. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:27021-27030. [PMID: 30014367 DOI: 10.1007/s11356-018-2620-z] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 06/19/2018] [Indexed: 05/27/2023]
Abstract
Influenza A virus (IFV-A) is one of the main cause of seasonal flu and can infect various of host species via the reassortment of segmented RNA genomes. Silver nanoparticles (AgNPs) have been known as excellent antiviral agent against IFV. However, the use of free AgNPs has several major drawbacks, including the inherent aggregation among AgNPs and unwanted cytotoxic or genotoxic damages for human body via inhalation or ingestion. In this study, we assessed the efficacy of our novel ~ 30-nm-diameter AgNP-decorated silica hybrid composite (Ag30-SiO2; ~ 400 nm in diameter) for IFV-A inactivation. Ag30-SiO2 particles can inhibit IFV-A effectively in a clear dose-dependent manner. However, when real-time RT-PCR assay was used, merely 0.5-log10 reduction of IFV-A was observed at both 5 and 20 °C. Moreover, even after 1 h of exposure to Ag30-SiO2 particles, more than 80% of hemagglutinin (HA) damage and 20% of neuraminidase (NA) activities had occurred, and the infection of Madin-Darby Canine Kidney (MDCK) cells by IFV-A was reduced. The results suggested that the major antiviral mechanism of Ag30-SiO2 particles is the interaction with viral components located at the membrane. Therefore, Ag30-SiO2 particles can cause nonspecific damage to various IFV-A components and be used as an effective method for inactivating IFV-A.
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Affiliation(s)
- SungJun Park
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Young-Seon Ko
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Su Jin Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Cheonghoon Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
- Institute of Health and Environment, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Kyoungja Woo
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
- N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
- Institute of Health and Environment, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
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136
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Rearick DC, Telgmann L, Hintelmann H, Frost PC, Xenopoulos MA. Spatial and temporal trends in the fate of silver nanoparticles in a whole-lake addition study. PLoS One 2018; 13:e0201412. [PMID: 30110351 PMCID: PMC6093604 DOI: 10.1371/journal.pone.0201412] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 07/13/2018] [Indexed: 01/27/2023] Open
Abstract
Studies of the fate and toxicity of nanoparticles, including nanosilver (AgNPs), have been primarily conducted using bench scale studies over relatively short periods of time. To better understand the fate of AgNPs in natural aquatic ecosystems over longer time scales and ecological settings, we released suspensions of AgNPs (30–50 nm, capped with polyvinylpyrrolidone) into a boreal lake at the Experimental Lakes Area in Canada. Approximately 9 kg of silver was added from a shoreline point source from June to October 2014, which resulted in total Ag (TAg) concentrations of about 10 μg L-1 or less. In addition, dissolved Ag concentrations (DAg) were typically very low. Using single particle inductively coupled plasma mass spectrometry (sp-ICP-MS) analysis of grab samples, we found that the nanoparticles typically ranged in the 40–60 nm size class and were widely distributed throughout the lake, while larger aggregates (i.e. >100 nm) were infrequently detected. The highest occurrence of aggregates was found near the addition site; however, size distributions did not vary significantly among spatial locations or time suggesting rapid dispersal upon entry into the lake. Lake stratification at the thermocline was not a barrier to mobility of the AgNPs, as the particles were also detected in the hypolimnion. Environmental factors influenced Ag size distributions over sampling locations and time. Total dissolved phosphorus, bacterioplankton chlorophyll-a, and sampling time strongly correlated with aggregation and dissolution dynamics. AgNPs thus appear to be relatively mobile and persistent over the growing season in lake ecosystems.
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Affiliation(s)
- Daniel C. Rearick
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, Ontario, Canada
- * E-mail:
| | - Lena Telgmann
- Water Quality Centre, Department of Chemistry, Trent University, Peterborough, Ontario, Canada
| | - Holger Hintelmann
- Water Quality Centre, Department of Chemistry, Trent University, Peterborough, Ontario, Canada
| | - Paul C. Frost
- Department of Biology, Trent University, Peterborough, Ontario, Canada
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137
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Vilela P, Liu H, Lee S, Hwangbo S, Nam K, Yoo C. A systematic approach of removal mechanisms, control and optimization of silver nanoparticle in wastewater treatment plants. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 633:989-998. [PMID: 29758920 DOI: 10.1016/j.scitotenv.2018.03.247] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2017] [Revised: 03/01/2018] [Accepted: 03/21/2018] [Indexed: 06/08/2023]
Abstract
The release of silver nanoparticles (AgNPs) to wastewater caused by over-generation and poor treatment of the remaining nanomaterial has raised the interest of researchers. AgNPs can have a negative impact on watersheds and generate degradation of the effluent quality of wastewater treatment plants (WWTPs). The aim of this research is to design and analyze an integrated model system for the removal of AgNPs with high effluent quality in WWTPs using a systematic approach of removal mechanisms modeling, optimization, and control of the removal of silver nanoparticles. The activated sludge model 1 was modified with the inclusion of AgNPs removal mechanisms, such as adsorption/desorption, dissolution, and inhibition of microbial organisms. Response surface methodology was performed to minimize the AgNPs and total nitrogen concentrations in the effluent by optimizing operating conditions of the system. Then, the optimal operating conditions were utilized for the implementation of control strategies into the system for further analysis of enhancement of AgNPs removal efficiency. Thus, the overall AgNP removal efficiency was found to be slightly higher than 80%, which was an improvement of almost 7% compared to the BSM1 reference value. This study provides a systematic approach to find an optimal solution for enhancing AgNP removal efficiency in WWTPs and thereby to prevent pollution in the environment.
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Affiliation(s)
- Paulina Vilela
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of Korea; ESPOL Polytechnic University, Escuela Superior Politécnica del Litoral, ESPOL, Facultad de Ingeniería en Ciencias de la Tierra, Campus Gustavo Galindo Km. 30.5 Vía Perimetral, P.O. Box 09-01-5863, Guayaquil, Ecuador
| | - Hongbin Liu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - SeungChul Lee
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of Korea
| | - Soonho Hwangbo
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of Korea
| | - KiJeon Nam
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of Korea
| | - ChangKyoo Yoo
- Dept. of Environmental Science and Engineering, College of Engineering, Center for Environmental Studies, Kyung Hee University, Seocheon-dong 1, Giheung-gu, Yongin-Si, Gyeonggi-Do 446-701, Republic of Korea.
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138
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Miranda RR, Gorshkov V, Korzeniowska B, Kempf SJ, Neto FF, Kjeldsen F. Co-exposure to silver nanoparticles and cadmium induce metabolic adaptation in HepG2 cells. Nanotoxicology 2018; 12:781-795. [PMID: 29996704 DOI: 10.1080/17435390.2018.1489987] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Although multiple studies have reported the toxicological effects and underlying mechanisms of toxicity of silver nanoparticles (AgNP) in a variety of organisms, the interactions of AgNP with environmental contaminants such as cadmium are poorly understood. We used biochemical assays and mass spectrometry-based proteomics to assess the cellular and molecular effects induced by a co-exposure of HepG2 cells to AgNP and cadmium. Cell viability and energy homeostasis were slightly affected after a 4-h exposure to AgNP, cadmium, or a combination of the two; these endpoints were substantially altered after a 24-h co-exposure to AgNP and cadmium, while exposure to one of the two contaminants led only to minor changes. Proteomics analysis followed the same trend: while a 4-h exposure induced minor protein deregulation, a 24-h exposure to a combination of AgNP and cadmium deregulated 43% of the proteome. The toxicity induced by a combined exposure to AgNP and cadmium involved (1) inactivation of Nrf2, resulting in downregulation of antioxidant defense and proteasome-related proteins, (2) metabolic adaptation and ADP/ATP imbalance, and (3) increased protein synthesis possibly to reestablish homeostasis. The adaptation strategy was not sufficient to restore ADP/ATP homeostasis and to avoid cell death.
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Affiliation(s)
- Renata Rank Miranda
- a Department of Cell Biology , Federal University of Parana , Curitiba , Brazil.,b Department of Biochemistry and Molecular Biology , University of Southern Denmark , Odense , Denmark
| | - Vladimir Gorshkov
- b Department of Biochemistry and Molecular Biology , University of Southern Denmark , Odense , Denmark
| | - Barbara Korzeniowska
- b Department of Biochemistry and Molecular Biology , University of Southern Denmark , Odense , Denmark
| | - Stefan J Kempf
- b Department of Biochemistry and Molecular Biology , University of Southern Denmark , Odense , Denmark
| | | | - Frank Kjeldsen
- b Department of Biochemistry and Molecular Biology , University of Southern Denmark , Odense , Denmark
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139
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Rajala JE, Vehniäinen ER, Väisänen A, Kukkonen JVK. Toxicity of silver nanoparticles to Lumbriculus variegatus is a function of dissolved silver and promoted by low sediment pH. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2018; 37:1889-1897. [PMID: 29575024 DOI: 10.1002/etc.4136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 12/04/2017] [Accepted: 03/15/2018] [Indexed: 06/08/2023]
Abstract
Toxicity of silver nanoparticles (AgNPs) to benthic organisms is a major concern. The use of AgNPs in industry and consumer products leads to increasing release of AgNPs into the aquatic environment-sediments being the major sink. Effects of sediment pH on the toxicity of AgNPs to benthic oligochaeta Lumbriculus variegatus were studied in a 23-d toxicity test. Artificially prepared sediments (pH 5 and 7) were spiked with varying concentrations of uncoated AgNP, polyvinylpyrrolidone (PVP)-coated AgNP, and silver nitrate (AgNO3 ) as dissolved Ag reference. Number of individuals and biomass change were used as endpoints for the toxicity. The toxic effects were related to the bioaccessible concentration of dissolved Ag in the sediments, assessed with a 2-step extraction procedure. The toxicity of 2 AgNPs was similar and greatly enhanced in the acidic sediment. Because the toxic effects were well related to the bioaccessible concentration of dissolved Ag in the sediments, the toxicity of sediment-associated AgNPs to L. variegatus is suggested to be a function of dissolved Ag rather than a result from NP-specific modes of toxicity. Environ Toxicol Chem 2018;37:1889-1897. © 2018 SETAC.
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Affiliation(s)
- Juho E Rajala
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Eeva-Riikka Vehniäinen
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
| | - Ari Väisänen
- Department of Chemistry, University of Jyväskylä, Jyväskylä, Finland
| | - Jussi V K Kukkonen
- Department of Biological and Environmental Science, University of Jyväskylä, Jyväskylä, Finland
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140
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Park S, Ko YS, Jung H, Lee C, Woo K, Ko G. Disinfection of waterborne viruses using silver nanoparticle-decorated silica hybrid composites in water environments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 625:477-485. [PMID: 29291562 DOI: 10.1016/j.scitotenv.2017.12.318] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Revised: 12/27/2017] [Accepted: 12/27/2017] [Indexed: 05/28/2023]
Abstract
Silver nanoparticles (AgNPs) have been reported as an effective alternative for controlling a broad-spectrum of pathogenic viruses. We developed a micrometer-sized silica hybrid composite decorated with AgNPs (AgNP-SiO2) to prevent the inherent aggregation of AgNPs, and facilitated their recovery from environmental media after use. The production process had a high-yield, and fabrication was cost-effective. We evaluated the antiviral capabilities of Ag30-SiO2 particles against two model viruses, bacteriophage MS2 and murine norovirus (MNV), in four different types of water (deionized, tap, surface, and ground). MNV was more susceptible to Ag30-SiO2 particles in all four types of water compared to MS2. Furthermore, several water-related factors, including temperature and organic matter content, were shown to affect the antimicrobial capabilities of Ag30-SiO2 particles. The modified Hom model was the best-fit disinfection model for MNV disinfection in the different types of water. Additionally, this study demonstrated that the effects of a certain level of physical obstacles in water were negligible in regards to the use of Ag30-SiO2 particles. Thus, effective use of AgNPs in water disinfection processes can be achieved using our novel hybrid composites to inactivate various waterborne viruses.
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Affiliation(s)
- SungJun Park
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Young-Seon Ko
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Haeyong Jung
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Cheonghoon Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; Institute of Health and Environment, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Kyoungja Woo
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
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141
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Adrian YF, Schneidewind U, Bradford SA, Simunek J, Fernandez-Steeger TM, Azzam R. Transport and retention of surfactant- and polymer-stabilized engineered silver nanoparticles in silicate-dominated aquifer material. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:195-207. [PMID: 29414340 DOI: 10.1016/j.envpol.2018.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 12/04/2017] [Accepted: 01/04/2018] [Indexed: 06/08/2023]
Abstract
Packed column experiments were conducted to investigate the transport and blocking behavior of surfactant- and polymer-stabilized engineered silver nanoparticles (Ag-ENPs) in saturated natural aquifer media with varying content of material < 0.063 mm in diameter (silt and clay fraction), background solution chemistry, and flow velocity. Breakthrough curves for Ag-ENPs exhibited blocking behavior that frequently produced a delay in arrival time in comparison to a conservative tracer that was dependent on the physicochemical conditions, and then a rapid increase in the effluent concentration of Ag-ENPs. This breakthrough behavior was accurately described using one or two irreversible retention sites that accounted for Langmuirian blocking on one site. Simulated values for the total retention rate coefficient and the maximum solid phase concentration of Ag-ENPs increased with increasing solution ionic strength, cation valence, clay and silt content, decreasing flow velocity, and for polymer-instead of surfactant-stabilized Ag-ENPs. Increased Ag-ENP retention with ionic strength occurred because of compression of the double layer and lower magnitudes in the zeta potential, whereas lower velocities increased the residence time and decreased the hydrodynamics forces. Enhanced Ag-ENP interactions with cation valence and clay were attributed to the creation of cation bridging in the presence of Ca2+. The delay in breakthrough was always more pronounced for polymer-than surfactant-stabilized Ag-ENPs, because of differences in the properties of the stabilizing agents and the magnitude of their zeta-potential was lower. Our results clearly indicate that the long-term transport behavior of Ag-ENPs in natural, silicate dominated aquifer material will be strongly dependent on blocking behavior that changes with the physicochemical conditions and enhanced Ag-ENP transport may occur when retention sites are filled.
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Affiliation(s)
- Yorck F Adrian
- Department of Engineering Geology and Hydrogeology, RWTH Aachen University, Lochnerstr. 4-20, 52064 Aachen, Germany.
| | - Uwe Schneidewind
- Department of Engineering Geology and Hydrogeology, RWTH Aachen University, Lochnerstr. 4-20, 52064 Aachen, Germany
| | - Scott A Bradford
- US Salinity Laboratory, USDA, ARS, Riverside, CA 92507, United States
| | - Jirka Simunek
- Department of Environmental Sciences, University of California, Riverside, CA 92521, United States
| | | | - Rafig Azzam
- Department of Engineering Geology and Hydrogeology, RWTH Aachen University, Lochnerstr. 4-20, 52064 Aachen, Germany
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142
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Yang Q, Zhang L, Ben A, Wu N, Yi Y, Jiang L, Huang H, Yu Y. Effects of dispersible MoS 2 nanosheets and Nano-silver coexistence on the metabolome of yeast. CHEMOSPHERE 2018; 198:216-225. [PMID: 29421733 DOI: 10.1016/j.chemosphere.2018.01.140] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 01/16/2018] [Accepted: 01/26/2018] [Indexed: 05/24/2023]
Abstract
As a new rising star in the post-graphene two-dimensional materials (2DMs), molybdenum disulfide (MoS2) attracts increasing attentions and is widely applied. However, the chemical and toxicological interaction between MoS2 and other co-contaminants is still poorly understood. Nano-silver (N-Ag) is the most commonly used nanomaterial in commercial products and distributed widely in the environment. Herein, we investigated the effects of chitosan functionalized MoS2 (CS-MoS2) nanosheets, a water-dispersible form of MoS2, on the microbial toxicity of N-Ag. We found that the incorporation of CS-MoS2 nanosheets attenuated the oxidative stress induced by N-Ag on yeast cells, while caused more membrane stress. In addition, the inhibition of N-Ag on the metabolic activities of yeast cells could be attenuated by CS-MoS2 nanosheets as well. The coexistence of N-Ag and CS-MoS2 nanosheets mainly perturbed the amino acid-related metabolic pathways in yeast cells, and phosphoric acid was a potential nanotoxicity biomarker. We further found that CS-MoS2 nanosheets dramatically absorbed the Ag ion released from N-Ag, which might be responsible for its attenuation effect on the microbial toxicity of N-Ag. Our findings provide more new insights for the ecotoxicity evaluation of MoS2 and other 2DMs.
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Affiliation(s)
- Qi Yang
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Lei Zhang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211800, China
| | - Ailing Ben
- School of Food Science, Nanjing Xiaozhuang University, Nanjing 211800, China
| | - Na Wu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China
| | - Yanliang Yi
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211800, China
| | - Ling Jiang
- College of Food Science and Light Industry, Nanjing Tech University, Nanjing 211800, China
| | - He Huang
- School of Pharmaceutical Sciences, Nanjing Tech University, Nanjing 211800, China; State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211800, China.
| | - Yadong Yu
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211800, China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech, 211800, China.
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143
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Zhang C, Brown PJB, Hu Z. Thermodynamic properties of an emerging chemical disinfectant, peracetic acid. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 621:948-959. [PMID: 29191692 DOI: 10.1016/j.scitotenv.2017.10.195] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 10/17/2017] [Accepted: 10/19/2017] [Indexed: 05/22/2023]
Abstract
Peracetic acid (PAA or CH3COOOH) is an emerging disinfectant with a low potential to form carcinogenic disinfection by-products (DBPs). Basic thermodynamic properties of PAA are, however, absent or inconsistently reported in the literature. This review aimed to summarize important thermodynamic properties of PAA, including standard Gibbs energy of formation and oxidation-reduction (redox) potential. The standard Gibbs energies of formation of CH3COOOH(aq), CH3COOOH(g), CH3COOOH(l), and CH3COOO(aq)- are -299.41kJ·mol-1, -283.02kJ·mol-1, -276.10kJ·mol-1, and -252.60kJ·mol-1, respectively. The standard redox potentials of PAA are 1.748V and 1.005V vs. standard hydrogen electrode (SHE) at pH 0 and pH 14, respectively. Under biochemical standard state conditions (pH 7, 25°C, 101,325Pa), PAA has a redox potential of 1.385V vs. SHE, higher than many disinfectants. Finally, the environmental implications of the thermodynamic properties of PAA were systematically discussed. Those properties can be used to predict the physicochemical and biological behavior of aquatic systems exposed to PAA.
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Affiliation(s)
- Chiqian Zhang
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO 65211, United States
| | - Pamela J B Brown
- Division of Biological Sciences, University of Missouri, Columbia, MO 65211, United States
| | - Zhiqiang Hu
- Department of Civil & Environmental Engineering, University of Missouri, Columbia, MO 65211, United States.
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144
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Zheng X, Wang J, Chen Y, Wei Y. Comprehensive analysis of transcriptional and proteomic profiling reveals silver nanoparticles-induced toxicity to bacterial denitrification. JOURNAL OF HAZARDOUS MATERIALS 2018; 344:291-298. [PMID: 29055833 DOI: 10.1016/j.jhazmat.2017.10.028] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 10/13/2017] [Accepted: 10/14/2017] [Indexed: 05/12/2023]
Abstract
Although the toxicity of silver nanoparticles (Ag NPs or nanosilver) to model bacteria has been reported, the effects of Ag NPs on microbial denitrification under anoxic conditions and the mechanism of Ag NPs induced-toxicity to denitrification remain unclear. In this study, the effects of Ag NPs on Paracoccus denitrificans under anoxic conditions were investigated, and the mechanism was explored by analyzing the transcriptional and proteomic responses of bacteria to Ag NPs. The presence of 5mg/L Ag NPs led to excessive nitrate accumulation (232.5 versus 5.3mg/L) and increased nitrous oxide emission. Transcriptional analysis indicated that Ag NPs restrained the expression of key genes related to denitrification. Specifically, the genes involved in denitrifying catalytic reduction and electron transfer were significantly down-regulated. Moreover, the expression of the genes responsible for polyhydroxybutyrate synthesis was enhanced, which was adverse to denitrification. Proteomic profiling revealed that the syntheses of the proteins involved in catalytic process, electron transfer, and metabolic process were inhibited by Ag NPs. The activities of nitrate reductase and nitrite reductase in the presence of 5mg/L Ag NPs were only 42% and 61% of those in the control, respectively, indicating the inhibition of denitrifying enzymes. These results improve understanding of the inhibitory mechanism of Ag NPs toward bacterial denitrification.
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Affiliation(s)
- Xiong Zheng
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Juan Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yinguang Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China.
| | - Yuanyuan Wei
- State Key Laboratory of Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, China
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145
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Chen Z, Lu J, Gao SH, Jin M, Bond PL, Yang P, Yuan Z, Guo J. Silver nanoparticles stimulate the proliferation of sulfate reducing bacterium Desulfovibrio vulgaris. WATER RESEARCH 2018; 129:163-171. [PMID: 29149671 DOI: 10.1016/j.watres.2017.11.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 11/06/2017] [Accepted: 11/07/2017] [Indexed: 06/07/2023]
Abstract
The intensive use of silver nanoparticles (AgNPs) in cosmetics and textiles causes their release into sewer networks of urban water systems. Although a few studies have investigated antimicrobial activities of nanoparticles against environmental bacteria, little is known about potential impacts of the released AgNPs on sulfate reducing bacteria in sewers. Here, we investigated the effect of AgNPs on Desulfovibrio vulgaris Hidenborough (D. vulgaris), a typical sulfate-reducing bacterium (SRB) in sewer systems. We found AgNPs stimulated the proliferation of D. vulgaris, rather than exerting inhibitory or biocidal effects. Based on flow cytometer detections, both the cell growth rate and the viable cell ratio of D. vulgaris increased during exposure to AgNPs at concentrations of up to 100 mg/L. The growth stimulation was dependent on the AgNP concentration. These results imply that the presence of AgNPs in sewage may affect SRB abundance in sewer networks. Our findings also shed new lights on the interactions of nanoparticles and bacteria.
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Affiliation(s)
- Zhaoyu Chen
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia; Department of Environmental Science & Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Ji Lu
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Shu-Hong Gao
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Min Jin
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Philip L Bond
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Ping Yang
- Department of Environmental Science & Engineering, Sichuan University, Chengdu, Sichuan 610065, China
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia
| | - Jianhua Guo
- Advanced Water Management Centre, The University of Queensland, St Lucia, Brisbane, QLD 4072, Australia.
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146
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Zhang T, Pan JF, Hunt DE, Chen M, Wang B. Organic matter modifies biochemical but not most behavioral responses of the clam Ruditapes philippinarum to nanosilver exposure. MARINE ENVIRONMENTAL RESEARCH 2018; 133:105-113. [PMID: 29254654 DOI: 10.1016/j.marenvres.2017.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 10/27/2017] [Accepted: 10/29/2017] [Indexed: 06/07/2023]
Abstract
Adsorption of dissolved organic matter (DOM) can alter the environmental fate, bioavailability and toxicity of silver nanoparticles (Ag NPs). However, a number of questions remain about DOM's ability to modify nanotoxicity. Here, we examine the impact of humic acid (HA, as a model DOM) on the toxicity of Ag NPs (10 μg L-1) in the marine clam Ruditapes philippinarum. Results showed that DOM additions to Ag NP treatments reduce clam silver tissue burdens and the oxidative stress response. However, HA does not significantly affect the impact of Ag NPs on clam acetylcholinesterase activity and feeding behavior (measured as filtration rate). Overall, the integrated biological response index supports the conclusion that humic acid reduces the toxicity of Ag NPs, clearly indicating the importance of considering environmental factors when assessing potential risks posed by nanomaterials in natural settings.
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Affiliation(s)
- Tingwan Zhang
- Key Laboratory of Marine Environment and Ecology (Ministry of Education), College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China
| | - Jin-Fen Pan
- Key Laboratory of Marine Environment and Ecology (Ministry of Education), College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, PR China; Marine Laboratory, Duke University, Beaufort, NC, USA.
| | - Dana E Hunt
- Marine Laboratory, Duke University, Beaufort, NC, USA
| | - Min Chen
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
| | - Bo Wang
- College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China
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147
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Sheng Z, Van Nostrand JD, Zhou J, Liu Y. Contradictory effects of silver nanoparticles on activated sludge wastewater treatment. JOURNAL OF HAZARDOUS MATERIALS 2018; 341:448-456. [PMID: 28830010 DOI: 10.1016/j.jhazmat.2017.07.051] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/22/2017] [Accepted: 07/24/2017] [Indexed: 06/07/2023]
Abstract
Increased amount of nano-silver will be released into domestic and industrial waste streams due to its extensive application. However, great controversy still exists on the effects of silver nanoparticle (Ag-NP) on biological wastewater treatment processes and a toxicology model has not been built yet. Four sequencing batch reactors with activated sludge has been run for over three months with different silver species at a concentration of 1mg Ag/L in influent. Both freshly prepared Ag-NPs and aged Ag-NPs were tested with released silver ion as control. Results in this study showed that Ag-NPs, especially freshly prepared Ag-NPs, can help to maintain or even increase the diversity of microbial community in activated sludge and the biomass concentration even under long-term treatment. It indicates that the hormesis model need to be considered for the toxicology of Ag-NPs.
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Affiliation(s)
- Zhiya Sheng
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, T6G 2W2, Canada
| | - Joy D Van Nostrand
- Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA
| | - Jizhong Zhou
- Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, USA
| | - Yang Liu
- Department of Civil and Environmental Engineering, University of Alberta, Edmonton, AB, T6G 2W2, Canada.
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148
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Zhang W, Xiao B, Fang T. Chemical transformation of silver nanoparticles in aquatic environments: Mechanism, morphology and toxicity. CHEMOSPHERE 2018; 191:324-334. [PMID: 29045933 DOI: 10.1016/j.chemosphere.2017.10.016] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2017] [Revised: 09/16/2017] [Accepted: 10/02/2017] [Indexed: 06/07/2023]
Abstract
Silver nanoparticles (Ag NPs) have been inevitably introduced into ecological environment during their extensive applications in daily human life. Thermodynamically, Ag NPs are unstable and transform into other species under various aqueous conditions. Ag NPs and their transformation products pose potential threats to environment and humans. However, the complex environmental conditions and transformations of Ag NPs complicate their human health and environmental risk assessment. To bridge the knowledge gap, four essential environmental transformations, oxidative dissolution, sulfidation, chlorination and photoreduction, of Ag NPs are reviewed herein. The mechanism, morphology and size change, as well as the toxicity of Ag NPs during these transformations under certain aqueous conditions are detailed. In particular, these environmental transformations have shown strong correlations that are discussed. The transformation, fate, bioavailability, morphology and toxicity of Ag NPs are critical factors and should be considered in a complete human health and environmental risk assessment of Ag NPs. The fluctuation of these factors in the realistic environment is also vital and should be considered.
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Affiliation(s)
- Weicheng Zhang
- Key Laboratory of Ecological Security for Water Source Region of Mid-line of South-to-North Diversion Project of Henan Province, College of Agricultural Engineering, Nanyang Normal University, Nanyang, 473061, China; Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Bangding Xiao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
| | - Tao Fang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
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149
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Park S, Park HH, Ko YS, Lee SJ, Le TS, Woo K, Ko G. Disinfection of various bacterial pathogens using novel silver nanoparticle-decorated magnetic hybrid colloids. THE SCIENCE OF THE TOTAL ENVIRONMENT 2017; 609:289-296. [PMID: 28753503 DOI: 10.1016/j.scitotenv.2017.07.071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/07/2017] [Accepted: 07/08/2017] [Indexed: 06/07/2023]
Abstract
Silver nanoparticles (AgNPs) have long been considered a powerful disinfectant for controlling pathogenic microorganisms. However, AgNPs might have adverse effects on both human health and our ecosystems due to their potential cytotoxicity and the difficulty in recovering them after their release into the environment. In this study, we characterized the antimicrobial efficacy caused by a novel micrometer-sized magnetic hybrid colloid (MHC) containing 7, 15, or 30nm sized monodispersed AgNPs (AgNP-MHCs), which can be re-collected from the environment using simple procedures, such as a magnet or centrifugation. We evaluated the antibacterial capabilities of AgNP-MHCs against target bacteria (Legionella pneumophila, Bacillus subtilis, Escherichia coli, and Clostridium perfringens) and compared them with the inactivation efficacy of AgNPs ~30nm in diameter (nAg30s). Among the different AgNP-MHCs composites evaluated, Ag30-MHCs had the greatest antibacterial effect. After 1h of exposure, more than a 4-log10 reduction of L. pneumophila and 6-log10 reduction of B. subtilis was achieved by 4.6×109particles/mL of Ag30-MHCs and Ag30-MHC-Ls. In addition, Ag30-MHC-Ls maintained their strong antibacterial capabilities under anaerobic conditions. Our results indicate that AgNP-MHCs can be considered excellent tools for controlling waterborne bacterial pathogens, with a minimal risk of release into the environment.
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Affiliation(s)
- SungJun Park
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - Hye Hun Park
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Young-Seon Ko
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Su Jin Lee
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea
| | - The Son Le
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - Kyoungja Woo
- Nanophotonics Research Center, Korea Institute of Science and Technology, 39-1 Hawolgok-dong, Seongbuk-gu, Seoul, Republic of Korea
| | - GwangPyo Ko
- Department of Environmental Health Sciences, Graduate School of Public Health, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea; N-Bio, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul, Republic of Korea.
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150
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Griffin S, Masood MI, Nasim MJ, Sarfraz M, Ebokaiwe AP, Schäfer KH, Keck CM, Jacob C. Natural Nanoparticles: A Particular Matter Inspired by Nature. Antioxidants (Basel) 2017; 7:antiox7010003. [PMID: 29286304 PMCID: PMC5789313 DOI: 10.3390/antiox7010003] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 12/20/2017] [Accepted: 12/22/2017] [Indexed: 02/06/2023] Open
Abstract
During the last couple of decades, the rapidly advancing field of nanotechnology has produced a wide palette of nanomaterials, most of which are considered as “synthetic” and, among the wider public, are often met with a certain suspicion. Despite the technological sophistication behind many of these materials, “nano” does not always equate with “artificial”. Indeed, nature itself is an excellent nanotechnologist. It provides us with a range of fine particles, from inorganic ash, soot, sulfur and mineral particles found in the air or in wells, to sulfur and selenium nanoparticles produced by many bacteria and yeasts. These nanomaterials are entirely natural, and, not surprisingly, there is a growing interest in the development of natural nanoproducts, for instance in the emerging fields of phyto- and phyco-nanotechnology. This review will highlight some of the most recent—and sometimes unexpected—advances in this exciting and diverse field of research and development. Naturally occurring nanomaterials, artificially produced nanomaterials of natural products as well as naturally occurring or produced nanomaterials of natural products all show their own, particular chemical and physical properties, biological activities and promise for applications, especially in the fields of medicine, nutrition, cosmetics and agriculture. In the future, such natural nanoparticles will not only stimulate research and add a greener outlook to a traditionally high-tech field, they will also provide solutions—pardon—suspensions for a range of problems. Here, we may anticipate specific biogenic factories, valuable new materials based on waste, the effective removal of contaminants as part of nano-bioremediation, and the conversion of poorly soluble substances and materials to biologically available forms for practical uses.
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Affiliation(s)
- Sharoon Griffin
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbruecken, Germany.
- Institute of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, 35037 Marburg, Germany.
| | - Muhammad Irfan Masood
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbruecken, Germany.
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, 66482 Zweibruecken, Germany.
| | - Muhammad Jawad Nasim
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbruecken, Germany.
| | - Muhammad Sarfraz
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbruecken, Germany.
| | - Azubuike Peter Ebokaiwe
- Department of Chemistry/Biochemistry and Molecular Biology, Federal University, Ndufu-Alike Ikwo, 482131 Ndufu-Alike, Nigeria.
| | - Karl-Herbert Schäfer
- Department of Biotechnology, University of Applied Sciences Kaiserslautern, 66482 Zweibruecken, Germany.
| | - Cornelia M Keck
- Institute of Pharmaceutics and Biopharmaceutics, Philipps University of Marburg, 35037 Marburg, Germany.
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Saarland University, D-66123 Saarbruecken, Germany.
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