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Nieves Lira C, Carpenter AP, Baio JE, Harper BJ, Harper SL, Mackiewicz MR. Size- and Shape-Dependent Interactions of Lipid-Coated Silver Nanoparticles: An Improved Mechanistic Understanding through Model Cell Membranes and In Vivo Toxicity. Chem Res Toxicol 2024; 37:968-980. [PMID: 38743843 DOI: 10.1021/acs.chemrestox.4c00053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The widespread use of silver nanoparticles (AgNPs) in various applications and industries has brought to light the need for understanding the complex relationship between the physicochemical properties (shape, size, charge, and surface chemistry) of AgNPs that affect their ability to enter cells and cause toxicity. To evaluate their toxicological outcomes, this study systematically analyzed a series of homogeneous hybrid lipid-coated AgNPs spanning sizes from 5 to 100 nm with diverse shapes (spheres, triangles, and cubes). The hybrid lipid membrane comprises hydrogenated phosphatidylcholine (HPC), sodium oleate (SOA), and hexanethiol (HT), which shield the AgNP surface from surface oxidation and toxic Ag+ ion release to minimize its contribution to toxicity. To reduce any significant effects by surface chemistry, the HPC, SOA, and HT membrane composition ratio was kept constant, and the AgNPs were assessed using embryonic zebrafish (Danio rerio). While a direct comparison cannot be drawn due to the lack of complementary sizes below 40 nm for triangular plates and cubes due to synthetic challenges, significant mortality was observed for spherical AgNPs (AgNSs) of 5, 20, 40, and 60 nm at 120 h postfertilization at concentrations ≥6 mg Ag/L. In contrast, the 10, 80, and 100 nm AgNSs, 40, 70, and 100 nm triangular plate AgNPs (AgNPLs), and 55, 75, and 100 nm cubic AgNPs (AgNCs) showed no significant mortality at 5 days postfertilization following exposure to AgNPs at concentrations up to 12 mg Ag/L. With constant surface chemistry on the AgNPs, size is the dominant factor driving toxicological responses, with smaller nanoparticles (5 to 60 nm) being the most toxic. Larger AgNSs, AgNCs, and AgNPLs from 75 to 100 nm do not show any evidence of toxicity. However, when closely examining sizes between 40 and 60 nm for AgNSs, AgNCs, and AgNPLs, there is evidence that discriminates shape as a driver of toxicity since sublethal responses generally were observed to follow a pattern, suggesting toxicity is most significant for AgNSs followed by AgNPLs and then AgNCs, which is the least toxic. Sum frequency generation vibrational spectroscopy showed that irrespective of size or shape, all hybrid lipid-coated AgNPs interact with membrane surfaces and "snorkel" between phases into the lipid monolayer with minimal energetic cost. These findings decisively demonstrate that not only smaller AgNPs but also the shape of the AgNPs influences their biological compatibility.
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Affiliation(s)
- Citlali Nieves Lira
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Andrew P Carpenter
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Joe E Baio
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
| | - Bryan J Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
| | - Stacey L Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, Oregon 97331, United States
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, Oregon 97331, United States
- Oregon Nanoscience and Microtechnologies Institute, Corvallis, Oregon 97331, United States
| | - Marilyn R Mackiewicz
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
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2
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Gattupalli M, Dashora K, Mishra M, Javed Z, Tripathi GD. Microbial bioprocess performance in nanoparticle-mediated composting. Crit Rev Biotechnol 2023; 43:1193-1210. [PMID: 36510336 DOI: 10.1080/07388551.2022.2106178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Accepted: 07/10/2022] [Indexed: 12/15/2022]
Abstract
Microbial composting is one of the most cost-effective techniques for degradation, remediation, nutrition, etc. Currently, there is faster growth and development in nanotechnology in different sectors. This development leads nanoparticles (NPs) to enter into the composts in different ways. First, unintentional entry of NPs into the composts via: waste discharge, buried solid waste, surface runoff, direct disposal into wastes (consumer goods, food, pharmaceuticals, and personal care products). Second, intentional mediation of the NPs in the composting process is a novel approach developed to enhance the degradation rate of wastes and as a nutrient for plants. The presence of NPs in the composts can cause nanotoxicity. Conversely, their presence might also be beneficial, such as soil reclamations, degradation, etc. Alternatively, metal NPs are also helpful for all living organisms, including microorganisms, in various biological processes, such as DNA replication, precursor biosynthesis, respiration, oxidative stress responses, and transcription. NPs show exemplary performance in multiple fields, whereas their role in composting process is worth studying. Consequently, this article aids the understanding of the role of NPs in the composting process and how far their presence can be beneficial. This article reviews the significance of NPs in: the composting process, microbial bioprocess performance during nano composting, basic life cycle assessment (LCA) of NP-mediated composting, and mode of action of the NPs in the soil matrix. This article also sheds insight on the notion of nanozymes and highlights their biocatalytic characterization, which will be helpful in future composting research.
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Affiliation(s)
- Meghana Gattupalli
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi, India
| | - Kavya Dashora
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi, India
| | - Mansi Mishra
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi, India
| | - Zoya Javed
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi, India
| | - Gyan Datta Tripathi
- Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi, India
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3
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Stabryla LM, Moncure PJ, Millstone JE, Gilbertson LM. Particle-Driven Effects at the Bacteria Interface: A Nanosilver Investigation of Particle Shape and Dose Metric. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39027-39038. [PMID: 37581368 PMCID: PMC10450641 DOI: 10.1021/acsami.3c00144] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/27/2023] [Indexed: 08/16/2023]
Abstract
Design criteria for controlling engineered nanomaterial (ENM) antimicrobial performance will enable advances in medical, food production, processing and preservation, and water treatment applications. In pursuit of this goal, better resolution of how specific ENM properties, such as nanoparticle shape, influence antimicrobial activity is needed. This study probes the antimicrobial activity toward a model Gram-negative bacterium, Escherichia coli (E. coli), that results from interfacial interactions with differently shaped silver nanoparticles (AgNPs): cube-, disc-, and pseudospherical-AgNPs. The EC50 value (i.e., the concentration of AgNPs that inactivates 50% of the microbial population) for each shape is identified and presented as a function of mass, surface area, and particle number. Further, shifts in relative potency are identified from the associated dose-response curves (e.g., shifts left, to lower concentrations, indicate greater potency). When using a mass-based dose metric, the disc-AgNPs present the highest antimicrobial activity of the three shapes (EC50: 2.39 ± 0.26 μg/mL for discs, 2.99 ± 0.96 μg/mL for cubes, 116.33 ± 6.43 μg/mL for pseudospheres). When surface area and particle number are used as dose metrics, the cube-AgNPs possess the highest antimicrobial activity (EC50-surface area: 4.70 × 10-5 ± 1.51 × 10-5 m2/mL, EC50-particle: 5.97 × 109 ± 1.92 × 109 particles/mL), such that the relative trend in potency becomes cubes > discs > pseudospheres and cubes ≫ discs ⩾ pseudospheres, respectively. The results reveal that the antimicrobial potency of disc-AgNPs is sensitive to the dose metric, significantly decreasing in potency (∼5-30×) upon conversion from a mass-based concentration to surface area and particle number and influencing the conclusions drawn. The shift in relative particle potency highlights the importance of investigating various dose metrics within the experimental design and signals different particle parameters influencing shape-based antimicrobial activity. To probe shape-dependent behavior, we use a unique empirical approach where the physical and chemical properties (ligand chemistry, surface charge) of the AgNP shapes are carefully controlled, and total available surface area is equivalent across shapes as made through modifications to particle size and concentration. The results herein suggest that surface area alone does not drive antimicrobial activity as the different AgNP shapes at equivalent particle surface area yield significantly different magnitudes of antimicrobial activity (i.e., 100% inactivation for cube-AgNPs, <25% inactivation for disc- and pseudospherical-AgNPs). Further, the particle shapes studied possess different crystal facets, illuminating their potential influence on differentiating interactions between the particle surface and the microbe. Whereas surface area may partly contribute to antimicrobial activity in certain ENM shapes (i.e., disc-AgNPs in relation to the pseudospherical-AgNPs), the different magnitudes of antimicrobial activity across shape provide insight into the likely role of other particle-specific factors, such as crystal facets, driving the antimicrobial activity of other shapes (i.e., cube-AgNPs).
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Affiliation(s)
- Lisa M. Stabryla
- Department
of Civil and Environmental Engineering, University of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Paige J. Moncure
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
| | - Jill E. Millstone
- Department
of Chemistry, University of Pittsburgh, 219 Parkman Avenue, Pittsburgh, Pennsylvania 15260, United States
- Department
of Chemical and Petroleum Engineering, University
of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Department
of Mechanical Engineering and Materials Science, University of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
| | - Leanne M. Gilbertson
- Department
of Civil and Environmental Engineering, University of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
- Department
of Chemical and Petroleum Engineering, University
of Pittsburgh, 3700 O’Hara Street, Pittsburgh, Pennsylvania 15261, United States
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Tamimi SM, Othman H. Silver Nanoparticles for Enhancing the Efficiency of Micropropagation of Banana ( Musa acuminata L.). Trop Life Sci Res 2023; 34:161-175. [PMID: 38144380 PMCID: PMC10735259 DOI: 10.21315/tlsr2023.34.2.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 10/03/2022] [Indexed: 12/26/2023] Open
Abstract
Silver nanoparticles (AgNPs) have numerous applications in plant biotechnology. The unique biological activities of AgNPs in reducing microbial contamination and promoting in vitro plant growth have encouraged their use in the development of novel culture systems for the in vitro cultivation of several plant species. In this study, the influence of (80 nm-100 nm) AgNPs on the micropropagation of banana was examined by incorporating AgNPs into shoot multiplication and rooting media at concentrations of 3 mg/L-15 mg/L. Biometric parameters for shoot multiplication (number of shoots/explant, shoot length and leaf surface area) and root development (number of roots/explant and root length) were analysed. In addition, shoot chlorophyll content, proline content and the possible impact of lipid peroxidation on membrane stability of plantlets were estimated. The results showed that all concentrations of AgNPs stimulated shoot growth and enhanced root development. The highest response was observed in media supplemented with 12 mg/L AgNPs. This optimal level of AgNPs caused a threefold increase in shoot growth parameter and a similar increase in root numbers/shoot and root length. Treatment with AgNPs at 12 mg/L also increased chlorophyll and proline content of shoots by 25% and 120% over control, respectively. Although the application of AgNPs increased the level of lipid peroxidation in shoots, it however, had a limited influence on membrane stability index. These results suggested that the administration of AgNPs to culture media can be effectively utilised for the enhancement of banana micropropagation with minimal toxic effects.
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Affiliation(s)
- Samih M. Tamimi
- Department of Biological Sciences, The University of Jordan, Queen Rania St, Amman, Jordan
| | - Halima Othman
- Department of Biological Sciences, The University of Jordan, Queen Rania St, Amman, Jordan
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5
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Menichetti A, Mavridi-Printezi A, Mordini D, Montalti M. Effect of Size, Shape and Surface Functionalization on the Antibacterial Activity of Silver Nanoparticles. J Funct Biomater 2023; 14:jfb14050244. [PMID: 37233354 DOI: 10.3390/jfb14050244] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 05/27/2023] Open
Abstract
Silver nanoparticles (AgNPs) are the most investigated antibacterial agents against multidrug resistant (MDR) pathogens. They can lead to cellular death by means of different mechanisms, damaging several cell compartments, from the external membrane, to enzymes, DNA and proteins; this simultaneous attack amplifies the toxic effect on bacteria with respect to traditional antibiotics. The effectiveness of AgNPs against MDR bacteria is strongly correlated with their chemical and morphological properties, which influence the pathways involved in cellular damage. In this review, AgNPs' size, shape and modification by functional groups or other materials are reported, both to investigate the different synthetic pathways correlated with nanoparticles' modifications and to evaluate the related effect on their antibacterial activity. Indeed, understanding the synthetic conditions for obtaining performing antibacterial AgNPs could help to tailor new and improved silver-based agents to combat multidrug resistance.
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Affiliation(s)
- Arianna Menichetti
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | | | - Dario Mordini
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
| | - Marco Montalti
- Department of Chemistry "Giacomo Ciamician", University of Bologna, Via Selmi 2, 40126 Bologna, Italy
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6
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What function of nanoparticles is the primary factor for their hyper-toxicity? Adv Colloid Interface Sci 2023; 314:102881. [PMID: 36934512 DOI: 10.1016/j.cis.2023.102881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 03/09/2023] [Accepted: 03/09/2023] [Indexed: 03/14/2023]
Abstract
Nanomaterials have applications in environmental protection, hygiene, medicine, agriculture, and the food industry due to their enhanced bio-efficacy/toxicity as science and technology have progressed, notably nanotechnology. The extension in the use of nanoparticles in day-to-day products and their excellent efficacy raises worries about safety concerns associated with their use. Therefore, to understand their safety concerns and find the remedy, it is imperative to understand the rationales for their enhanced toxicity at low concentrations to minimize their potential side effects. The worldwide literature quotes different nanoparticle functions responsible for their enhanced bio-efficacy/ toxicity. Since the literature on the comparative toxicity study of nanoparticles of different shapes and sizes having different other physic-chemical properties like surface areas, surface charge, solubility, etc., evident that the nanoparticle's toxicity is not followed the fashion according to their shape, size, surface area, surface charge, solubility, and other Physico-chemical properties. It raises the question then what function of nanoparticle is the primary factor for their hyper toxicity. Why do non-spherical and large-sized nanoparticles show the same or higher toxicity to the same or different cell line or test organism instead of having lower surface area, surface charge, larger size, etc., than their corresponding spherical and smaller-sized nanoparticles? Are these factors a secondary, not primary, factor for nanoparticles hyper-toxicity? If so, what function of nanoparticles is the primary function for their hyper-toxicity? Therefore, in this article, literature related to the comparative toxicity of nanoparticles was thoroughly studied, and a hypothesis is put forth to address the aforesaid question, that the number of atoms/ions/ molecules per nanoparticles is the primary function of nanoparticles toxicity.
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7
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Bhattacharya S, Majumdar Nee Paul S. Application of conventional metallic nanoparticles on male reproductive system - challenges and countermeasures. Syst Biol Reprod Med 2023; 69:32-49. [PMID: 36427189 DOI: 10.1080/19396368.2022.2140087] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The application of nanotechnology in the present era has substantial impact on different industrial and medical fields. However, the advancement in nanotechnology for potential therapeutic and consumer benefits has been an anxious cause regarding the probable hazardous consequences of these molecules in biological systems and the environment. The toxic effects can perturb the physiologic system broadly and reproductive function and fertility specifically. Despite engineered nanomaterials (ENMs) having a wide range of applications, toxicological investigations of the probable ramifications of ENMs on the reproductive systems of mammals and fertility remains in its nascence. Complication in the male reproductive system is quite a pertinent issue in today's world which comprises of benign prostatic enlargement, prostate cancer, and unhealthy sperm production. The therapeutic drugs should not only be active in minimum dose but also site-specific in action, criteria being met by nanomedicines. Nanomedicine therapy is promising but encompasses the chances of adverse effects of being cytotoxic and generating oxidative stress. These hurdles can be overcome by creating coated nanoparticles with organic substances, modification of shape and size, and synthesizing biocompatible green nanoparticles. This review attempts to look into the applications of most widely used metals like zinc, titanium, silver, and gold nanoparticles in the therapy of the male reproductive system, their prospective harmful effects, and the way out to create a safe therapeutic system by specific modifications of these metal and metal oxide nanoparticles.
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Affiliation(s)
- Sonali Bhattacharya
- Department of Zoology (Post Graduate Studies), Rishi Bankim Chandra College, West Bengal State University, Naihati, West Bengal, India
| | - Sudipta Majumdar Nee Paul
- Department of Zoology (Post Graduate Studies), Rishi Bankim Chandra College, West Bengal State University, Naihati, West Bengal, India
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8
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Kang MS, Lee GH, Kwon IH, Yang MJ, Heo MB, Choi JW, Lee TG, Yoon CH, Baek B, Sung MC, Kim DW, Park EJ. Uptake and toxicity of cerium dioxide nanoparticles with different aspect ratio. Toxicol Lett 2022; 373:196-209. [PMID: 36464203 DOI: 10.1016/j.toxlet.2022.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 10/18/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022]
Abstract
Cerium dioxide nanoparticles (CeONPs) have been extensively applied in research for future energy development due to two common oxidation states on their surface. Considering that shape (aspect ratio) is a key determinant of NPs-induced toxicity, we compared the toxicity of hexagonal (H)- and rod-shaped (R)-CeONPs in mice. At 24 h after pharyngeal aspiration, both types of CeONPs recruited surrounding immune cells (monocytes and neutrophils) into the lung, and R-CeONPs induced a more severe pulmonary inflammatory response compared with H-CeONPs. To identify an indicator to predict pulmonary inflammatory responses at the cellular level, we also investigated their responses in alveolar macrophage cells. At 24 h after treatment, both types of CeONPs were mainly located within the vacuoles (partially, in the lysosome) in the cytoplasm. Mitochondrial damage, intracellular calcium accumulation, and increased NO production were observed in cells exposed to both types of CeONPs, ultimately resulting in a decrease in cell viability. More interestingly, both types of CeONPs formed multinucleated giant cells. Meanwhile, contrary to when suspended in deionized water, R-CeONPs were strongly aggregated with a negative charge in cell culture media, whereas H-CeONPs were relatively well-dispersed with a positive charge. R-CeONPs-induced lysosomal extension was also recovered by premix with negatively charged DNA, and even NPs suspended in cell culture media without cells were detected under the FACS system, suggesting interference by protein corona. Therefore, we suggest that shape (aspect ratio) is an important factor determining inhaled NPs-induced pathology and that the effect of the surface charge and protein corona should be carefully considered in interpreting results derived from in vitro tests. Furthermore, we propose that the relationship between the formation of multinucleated giant cells and the inflammatory response of inhaled CeONPs should be further studied.
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Affiliation(s)
- Min-Sung Kang
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea; Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Gwang-Hee Lee
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Ik Hwan Kwon
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Mi-Jin Yang
- Jeonbuk Branch Institute, Korea Institute of Toxicology, 56212, Republic of Korea
| | - Min Beom Heo
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Jae-Won Choi
- Department of Biomedical Science and Technology, Graduate School, Kyung Hee University, 02447, Republic of Korea; Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Tae Geol Lee
- Safety Measurement Institute, Korea Research Institute of Standards and Science, 34113, Republic of Korea
| | - Cheol-Ho Yoon
- Environmental Analysis Team, Korea Basic Science Institute, Seoul 28119, Republic of Korea
| | - Bosung Baek
- Toxicity Evaluation Center, Keyprime Research Company, 28161, Republic of Korea; Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea
| | - Myeong-Chang Sung
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea
| | - Dong-Wan Kim
- School of Civil, Environmental and Architectural Engineering, Korea University, 02841, Republic of Korea.
| | - Eun-Jung Park
- Department of Biochemistry and Molecular Biology, College of Medicine, Kyung Hee University, Seoul 02447, Republic of Korea; Human Health and Environmental Toxins Research Center, Kyung Hee University, 02447, Republic of Korea.
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9
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Auclair J, Gagné F. Shape-Dependent Toxicity of Silver Nanoparticles on Freshwater Cnidarians. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12183107. [PMID: 36144895 PMCID: PMC9503847 DOI: 10.3390/nano12183107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/26/2022] [Accepted: 08/29/2022] [Indexed: 05/27/2023]
Abstract
Silver nanoparticles (AgNPs) are increasingly used in various consumer products, leading to their inadvertent release in aquatic ecosystems. The toxicity of AgNPs could be associated with the leaching of ionic Ag but also with the size, shape and surface properties. The purpose of this study was to test the null hypothesis that toxicity of AgNPs was independent of shape in the invertebrate Hydra vulgaris. The hydranths were exposed to increasing concentrations of ionic Ag and AgNPs of three different shapes (spherical, cubic and prismatic) with the same size and coating (polyvinylpyrrolidone). The data revealed that between 68% and 75% of total Ag remained in solution after the 96 h exposure period, while 85−90% of ionic Ag remained in solution. The 96 h lethal concentration (LC50) was lower with ionic (4 µg/L) and spherical AgNPs (56 µg/L), based on irreversible morphological changes such as loss of tentacles and body disintegration. Cubic and prismatic AgNPs were not toxic at a concentration of <100 µg/L. The sublethal toxicity was also determined at 96 h based on characteristic morphological changes (clubbed and/or shortened tentacles) and showed the following toxicity: ionic (2.6 µg/L), spherical (22 µg/L) and prismatic (32.5 µg/L) AgNPs. The nanocube was not toxic at this level. The data indicated that toxicity was shape-dependent where nanoparticles with a low aspect ratio in addition to high circularity and elongation properties were more toxic at both the lethal and sublethal levels. In conclusion, the shape of AgNPs could influence toxicity and warrants further research to better understand the mechanisms of action at play.
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10
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Wijesundera SA, Jayawardana KW, Yan M. Trehalose-Modified Silver Nanoparticles as Antibacterial Agents with Reduced Cytotoxicity and Enhanced Uptake by Mycobacteria. ACS APPLIED NANO MATERIALS 2022; 5:10704-10714. [PMID: 36247932 PMCID: PMC9555008 DOI: 10.1021/acsanm.2c02047] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Silver nanoparticles (AgNPs) are potent antimicrobial agents, but their utility is limited due to their relatively high cytotoxicity. In this work, we used trehalose as the ligand to reduce the cytotoxicity of AgNPs without affecting their antimicrobial activities. Trehalose is a disaccharide that is unique to mycobacteria. We showed that trehalose-functionalized AgNPs, AgNP-Tre, drastically increased the viability of A549 cells, especially at high concentrations, for example, from 4% for AgNPs to 67% for AgNP-Tre at 64 μg/mL. The trehalose ligand slowed down the release of silver, and the amount of silver released from AgNP-Tre was less than half of that from AgNPs in the culture medium. Intriguingly, while the maltose (Mal) or tri(ethylene glycol) (TEG) ligand reduced the antibacterial activity of AgNPs against M. smegmatis (minimal inhibitory concentration (MIC) of AgNP-Mal and AgNP-TEG: 4 μg/mL for 7 nm AgNPs), the activity of AgNP-Tre was similar to that of AgNPs (MIC of AgNP-Tre: 1 μg/mL for 7 nm AgNPs). Uptake experiments revealed that the intracellular concentration of AgNP-Tre was 87 and 114% higher than those of AuNP-Mal and AgNP-TEG, respectively. The increased uptake was attributed to the enhanced interactions of AgNP-Tre with mycobacteria promoted by the trehalose ligand.
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Affiliation(s)
- Samurdhi A Wijesundera
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Kalana W Jayawardana
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
| | - Mingdi Yan
- Department of Chemistry, University of Massachusetts Lowell, Lowell, Massachusetts 01854, United States
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11
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Damilos S, Saliakas S, Kokkinopoulos I, Karayannis P, Karamitrou M, Trompeta AF, Charitidis C, Koumoulos EP. Occupational Safety Analysis for COVID-Instigated Repurposed Manufacturing Lines: Use of Nanomaterials in Injection Moulding. Polymers (Basel) 2022; 14:polym14122418. [PMID: 35745994 PMCID: PMC9228191 DOI: 10.3390/polym14122418] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/09/2022] [Accepted: 06/10/2022] [Indexed: 12/05/2022] Open
Abstract
The COVID-19 pandemic instigated massive production of critical medical supplies and personal protective equipment. Injection moulding (IM) is considered the most prominent thermoplastic part manufacturing technique, offering the use of a large variety of feedstocks and rapid production capacity. Within the context of the European Commission-funded imPURE project, the benefits of IM have been exploited in repurposed IM lines to accommodate the use of nanocomposites and introduce the unique properties of nanomaterials. However, these amendments in the manufacturing lines highlighted the need for targeted and thorough occupational risk analysis due to the potential exposure of workers to airborne nanomaterials and fumes, as well as the introduction of additional occupational hazards. In this work, a safety-oriented failure mode and effects analysis (FMEA) was implemented to evaluate the main hazards in repurposed IM lines using acrylonitrile butadiene styrene (ABS) matrix and silver nanoparticles (AgNPs) as additives. Twenty-eight failure modes were identified, with the upper quartile including the seven failure modes presenting the highest risk priority numbers (RPN), signifying a need for immediate control action. Additionally, a nanosafety control-banding tool allowed hazard classification and the identification of control actions required for mitigation of occupation risks due to the released airborne silver nanoparticles.
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Affiliation(s)
- Spyridon Damilos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Stratos Saliakas
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Ioannis Kokkinopoulos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Panagiotis Karayannis
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
| | - Melpo Karamitrou
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Aikaterini-Flora Trompeta
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Costas Charitidis
- Research Lab of Advanced, Composites, Nanomaterials and Nanotechnology (R-NanoLab), School of Chemical Engineering, National Technical University of Athens, Zographos, 15780 Athens, Greece; (M.K.); (A.-F.T.); (C.C.)
| | - Elias P. Koumoulos
- Innovation in Research & Engineering Solutions (IRES), 1780 Wemmel, Belgium; (S.D.); (S.S.); (I.K.); (P.K.)
- Correspondence:
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12
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Deng N, Li H, Li Y, Mo F, Wang M, Li Z, Chen X, Xu J, Chai R, Wang H. Physiological homeostasis alteration and cellular structure damage of Chlorella vulgaris exposed to silver nanoparticles with various microstructural morphologies. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:26011-26020. [PMID: 35254620 DOI: 10.1007/s11356-022-19193-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 02/09/2022] [Indexed: 06/14/2023]
Abstract
The toxicity of silver nanoparticles (AgNPs) with a single morphology to aquatic organisms has been well demonstrated in the past decade, but few studies have been carried out to evaluate the differences in toxicity among AgNPs with various microstructural morphologies. In this work, C. vulgaris was used as the tested organism to examine the differences in toxic effects among AgNSs, AgNCs, and AgPLs at concentrations of 0.5, 1.0, 2.0, and 5.0 mg/L. The results showed that the cell density and chlorophyll a content of C. vulgaris decreased when the dose of AgNPs was increased, while the inhibiting effects that were caused by AgPLs were stronger than those that were caused by AgNCs and AgNSs. Under short-term exposure to AgPLs, the ROS content was significantly higher than those under exposure to AgNCs and AgNSs, while the MDA content fluctuated without obvious regularity. The dose of AgPLs affected the antioxidative enzyme activity and lipid peroxidation more obviously than those of AgNSs and AgNCs. The superoxide dismutase and catalase contents in the former case were distinctly higher than those in the latter cases. Consequently, the cell apoptosis rate under exposure to AgPLs reached 83%, which was higher than those under exposure to AgNSs (50%) and AgNCs (71%). This work shows that the level of toxicity to C. vulgaris was in the order of AgPLs > AgNCs > AgNSs. The obtained results demonstrate that the microstructural morphologies of AgNPs determined their potential toxicity.
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Affiliation(s)
- Ningcan Deng
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Haibo Li
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China.
| | - Yinghua Li
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China.
| | - Fan Mo
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Mingshuai Wang
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Zhe Li
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Xi Chen
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Jianing Xu
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Rui Chai
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
| | - Hongxuan Wang
- School of Resources and Civil Engineering, Northeastern University, 3-11 Wenhua Road, Heping District, Shenyang, 110819, China
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13
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Sikes JC, Wonner K, Nicholson A, Cignoni P, Fritsch I, Tschulik K. Characterization of Nanoparticles in Diverse Mixtures Using Localized Surface Plasmon Resonance and Nanoparticle Tracking by Dark-Field Microscopy with Redox Magnetohydrodynamics Microfluidics. ACS PHYSICAL CHEMISTRY AU 2022; 2:289-298. [PMID: 35915589 PMCID: PMC9335947 DOI: 10.1021/acsphyschemau.1c00046] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
Redox magnetohydrodynamics
(RMHD) microfluidics is coupled with
dark-field microscopy (DFM) to offer high-throughput single-nanoparticle
(NP) differentiation in situ and operando in a flowing mixture by localized surface plasmon resonance (LSPR)
and tracking of NPs. The color of the scattered light allows visualization
of the NPs below the diffraction limit. Their Brownian motion in 1-D
superimposed on and perpendicular to the RMHD trajectory yields their
diffusion coefficients. LSPR and diffusion coefficients provide two
orthogonal modalities for characterization where each depends on a
particle’s material composition, shape, size, and interactions
with the surrounding medium. RMHD coupled with DFM was demonstrated
on a mixture of 82 ± 9 nm silver and 140 ± 10 nm gold-coated
silica nanospheres. The two populations of NPs in the mixture were
identified by blue/green and orange/red LSPR and their scattering
intensity, respectively, and their sizes were further evaluated based
on their diffusion coefficients. RMHD microfluidics facilitates high-throughput
analysis by moving the sample solution across the wide field of view
absent of physical vibrations within the experimental cell. The well-controlled
pumping allows for a continuous, reversible, and uniform flow for
precise and simultaneous NP tracking of the Brownian motion. Additionally,
the amounts of nanomaterials required for the analysis are minimized
due to the elimination of an inlet and outlet. Several hundred individual
NPs were differentiated from each other in the mixture flowing in
forward and reverse directions. The ability to immediately reverse
the flow direction also facilitates re-analysis of the NPs, enabling
more precise sizing.
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Affiliation(s)
- Jazlynn C. Sikes
- University of Arkansas Department of Chemistry and Biochemistry, Fayetteville, Arkansas 72701, United States
| | - Kevin Wonner
- Ruhr University Bochum, Faculty of Chemistry and Biochemistry, Chair of Analytical Chemistry II, Bochum 44801, Germany
| | - Aaron Nicholson
- University of Arkansas Department of Chemistry and Biochemistry, Fayetteville, Arkansas 72701, United States
| | - Paolo Cignoni
- Ruhr University Bochum, Faculty of Chemistry and Biochemistry, Chair of Analytical Chemistry II, Bochum 44801, Germany
| | - Ingrid Fritsch
- University of Arkansas Department of Chemistry and Biochemistry, Fayetteville, Arkansas 72701, United States
| | - Kristina Tschulik
- Ruhr University Bochum, Faculty of Chemistry and Biochemistry, Chair of Analytical Chemistry II, Bochum 44801, Germany
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14
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Huang D, Dang F, Huang Y, Chen N, Zhou D. Uptake, translocation, and transformation of silver nanoparticles in plants. ENVIRONMENTAL SCIENCE: NANO 2022; 9:12-39. [PMID: 0 DOI: 10.1039/d1en00870f] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
This article reviews the plant uptake of silver nanoparticles (AgNPs) that occurred in soil systems and the in planta fate of Ag.
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Affiliation(s)
- Danyu Huang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu Province, P.R. China
| | - Fei Dang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu Province, P.R. China
| | - Yingnan Huang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, Jiangsu Province, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Ning Chen
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu Province, P.R. China
| | - Dongmei Zhou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, Jiangsu Province, P.R. China
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15
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Wang L, Yang D, Ma F, Wang G, You Y. Recent advances in responses of arbuscular mycorrhizal fungi - Plant symbiosis to engineered nanoparticles. CHEMOSPHERE 2022; 286:131644. [PMID: 34346335 DOI: 10.1016/j.chemosphere.2021.131644] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/19/2021] [Accepted: 07/21/2021] [Indexed: 06/13/2023]
Abstract
The application of engineered nanomaterials (ENMs) is increasing in all walks of life, inevitably resulting in a high risk of ENMs entering the natural environment. Recent studies have demonstrated that phytoaccumulation of ENMs in the environment may be detrimental to plants to varying degrees. However, plants primarily assimilate ENMs through the roots, which are inevitably affected by rhizomicroorganisms. In this review, we focus on a group of common rhizomicroorganisms-arbuscular mycorrhizal fungi (AMF). These fungi contribute to ENMs immobilization and inhibition of phytoaccumulation, improvement of host plant growth and activation of systematic protection in response to excess ENMs stress. In present review, we summarize the biological responses of plants to ENMs and the modulatory mechanisms of AMF on the immobilization of ENMs in substrate-plant interfaces, and indirectly regulatory mechanisms of AMF on the deleterious effects of ENMs on host plants. In addition, the information of feedback of ENMs on mycorrhizal symbiosis and the prospects of future research on the fate and mechanism of phyto-toxicity of ENMs mediated by AMF in the environment are also addressed. In view of above, synergistic reaction of plants and AMF may prove to be a cost-effective and eco-friendly technology to bio-control potential ENMs contamination on a sustainable basis.
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Affiliation(s)
- Li Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China.
| | - Dongguang Yang
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China
| | - Fang Ma
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China
| | - Gen Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China
| | - Yongqiang You
- State Key Laboratory of Urban Water Resource and Environment, School of Environmental, Harbin Institute of Technology, 73 Huanghe Road, Harbin, 150090, PR China
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16
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Serbest H, Bakırdere S, Keyf S. Determination of Silver in Metal Plating Wastewater by Slotted Quartz Tube Flame Atomic Absorption Spectrometry (SQT-FAAS) after Preconcentration with Stearic Acid-Coated Magnetite Nanoparticle-Based Solid-Phase Microextraction (SA-MNP-SPME). ANAL LETT 2021. [DOI: 10.1080/00032719.2021.1986718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Hakan Serbest
- Faculty of Chemical and Metallurgical Engineering, Chemical Engineering Department, Yıldız Technical University, İstanbul, Turkey
| | - Sezgin Bakırdere
- Faculty of Art and Science, Chemistry Department, Yıldız Technical University, İstanbul, Turkey
- Turkish Academy of Sciences (TÜBA), Çankaya, Ankara, Turkey
| | - Seyfullah Keyf
- Faculty of Chemical and Metallurgical Engineering, Chemical Engineering Department, Yıldız Technical University, İstanbul, Turkey
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17
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Fischer S, Jain R, Krause T, Jain P, Tsushima S, Shevchenko A, Hübner R, Jordan N. Impact of the Microbial Origin and Active Microenvironment on the Shape of Biogenic Elemental Selenium Nanomaterials. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:9161-9171. [PMID: 34019408 DOI: 10.1021/acs.est.0c07217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The shape of nanomaterials affects their colloidal properties, cellular uptake, and fate in the environment. The microbial origin and microenvironment can play a role in altering the shape of the nanomaterial. However, such studies have never been conducted. Here, we demonstrate that the selenium nanomaterials produced by Escherichia coli K-12 are stable and remain as BioSe-Nanospheres under thermophilic conditions, while those produced by anaerobic granular sludge transform to BioSe-Nanorods, due to a lower quantity of proteins coating these nanoparticles, which has been verified by proteomics analysis as well as using chemically synthesized selenium nanomaterials. Furthermore, the presence of Bacillus safensis JG-B5T transform the purified BioSe-Nanospheres produced by E. coli K-12 to BioSe-Nanorods, though they are not transformed in the absence of B. safensis JG-B5T. This is due to the production of peptidases by B. safensis JG-B5T that cleaves the protein coating the BioSe-Nanospheres produced by E. coli K-12, leading to their transformation to trigonal BioSe-Nanorods, which is the thermodynamically more stable state. These findings suggest that the fate of selenium and probably other redox-active elements released from the biological wastewater treatment units needs to be reevaluated and improved by including microbial criteria for better accuracy.
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Affiliation(s)
- Sarah Fischer
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Rohan Jain
- Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, New Delhi 110016, India
- Helmholtz-Zentrum Dresden - Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Thomas Krause
- Technische Universität Dresden, Institute of Microbiology, Chair of Molecular Biotechnology, 01062 Dresden, Germany
| | - Purvi Jain
- Waste Treatment Laboratory, Department of Biochemical Engineering and Biotechnology, Indian Institute of Technology, Delhi, New Delhi 110016, India
- Helmholtz-Zentrum Dresden - Rossendorf, Helmholtz Institute Freiberg for Resource Technology, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Satoru Tsushima
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328 Dresden, Germany
- World Research Hub Initiative (WRHI), Institute of Innovative Research, Tokyo Institute of Technology, 2-12-1, O-okayama, Meguro, 152-8550 Tokyo, Japan
| | - Anna Shevchenko
- Max-Planck-Institute of Molecular Cell Biology and Genetics, Pfotenhauerstrasse 108, 01307 Dresden, Germany
| | - René Hübner
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Norbert Jordan
- Helmholtz-Zentrum Dresden - Rossendorf, Institute of Resource Ecology, Bautzner Landstrasse 400, 01328 Dresden, Germany
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18
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Liu Y, Ma Y, Jiao C, Liu M, Luo W, Dong C, Fan S, He X, Yang F, Zhang Z. Comparative toxicity of rod-shaped nano-CeO2 and nano-CePO4 to lettuce. Metallomics 2021; 13:mfab033. [PMID: 34100933 DOI: 10.1093/mtomcs/mfab033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 05/27/2021] [Indexed: 11/12/2022]
Abstract
The influence of morphology on the biological effects of nanomaterials (NMs) has not been well understood. In the present study, we compared the phytotoxicity of rod-shaped nano-cerium dioxide (R-CeO2) and nano-cerium phosphate (R-CePO4) to lettuce plants. The results showed that R-CeO2 significantly inhibited the root elongation of lettuce, induced oxidative damages, and caused cell death, while R-CePO4 was nontoxic to lettuce. The different distribution and speciation of Ce in plant tissues were determined by transmission electron microscopy (TEM) and X-ray absorption near edge spectroscopy (XANES) combined with linear combination fitting (LCF). The results showed that in the R-CeO2 group, part of Ce was transformed from Ce(IV) to Ce(III), while only Ce(III) was present in the R-CePO4 group. When interacting with plants, R-CeO2 is easier to be dissolved and transformed than R-CePO4, which might be the reason for their different phytotoxicity. Although both are Ce-based NMs and have the same morphology, the toxicity of R-CeO2 seems to come from the released Ce3+ ions rather than its shape. This research emphasizes the importance of chemical composition and reactivity of NMs to their toxicological effects.
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Affiliation(s)
- Yabo Liu
- Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Yuhui Ma
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- CAS-HKU Joint Laboratory of Metallomics on Health & Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chunlei Jiao
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Mengyao Liu
- Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Wenhe Luo
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chaonan Dong
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Shixian Fan
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao He
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- CAS-HKU Joint Laboratory of Metallomics on Health & Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Fang Yang
- Hebei Provincial Key Lab of Green Chemical Technology & High Efficient Energy Saving, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
| | - Zhiyong Zhang
- Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- CAS-HKU Joint Laboratory of Metallomics on Health & Environment, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
- School of Physical Sciences, University of the Chinese Academy of Sciences, Beijing 100049, China
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19
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Cunningham B, Engstrom AM, Harper BJ, Harper SL, Mackiewicz MR. Silver Nanoparticles Stable to Oxidation and Silver Ion Release Show Size-Dependent Toxicity In Vivo. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:1516. [PMID: 34201075 PMCID: PMC8230025 DOI: 10.3390/nano11061516] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 05/28/2021] [Accepted: 05/28/2021] [Indexed: 02/06/2023]
Abstract
Silver nanoparticles (AgNPs) are widely used in commerce, however, the effect of their physicochemical properties on toxicity remains debatable because of the confounding presence of Ag+ ions. Thus, we designed a series of AgNPs that are stable to surface oxidation and Ag+ ion release. AgNPs were coated with a hybrid lipid membrane comprised of L-phosphatidylcholine (PC), sodium oleate (SOA), and a stoichiometric amount of hexanethiol (HT) to produce oxidant-resistant AgNPs, Ag-SOA-PC-HT. The stability of 7-month aged, 20-100 nm Ag-SOA-PC-HT NPs were assessed using UV-Vis, dynamic light scattering (DLS), and inductively coupled plasma mass spectrometry (ICP-MS), while the toxicity of the nanomaterials was assessed using a well-established, 5-day embryonic zebrafish assay at concentrations ranging from 0-12 mg/L. There was no change in the size of the AgNPs from freshly made samples or 7-month aged samples and minimal Ag+ ion release (<0.2%) in fishwater (FW) up to seven days. Toxicity studies revealed AgNP size- and concentration-dependent effects. Increased mortality and sublethal morphological abnormalities were observed at higher concentrations with smaller nanoparticle sizes. This study, for the first time, determined the effect of AgNP size on toxicity in the absence of Ag+ ions as a confounding variable.
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Affiliation(s)
- Brittany Cunningham
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; (B.C.); (B.J.H.); (S.L.H.)
| | - Arek M. Engstrom
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA;
| | - Bryan J. Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; (B.C.); (B.J.H.); (S.L.H.)
| | - Stacey L. Harper
- Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR 97331, USA; (B.C.); (B.J.H.); (S.L.H.)
- School of Chemical, Biological, and Environmental Engineering, Oregon State University, Corvallis, OR 97331, USA;
- Oregon Nanoscience and Microtechnologies Institute, Corvallis, OR 97339, USA
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20
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Zare EN, Zheng X, Makvandi P, Gheybi H, Sartorius R, Yiu CKY, Adeli M, Wu A, Zarrabi A, Varma RS, Tay FR. Nonspherical Metal-Based Nanoarchitectures: Synthesis and Impact of Size, Shape, and Composition on Their Biological Activity. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2007073. [PMID: 33710754 DOI: 10.1002/smll.202007073] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Indexed: 06/12/2023]
Abstract
Metal-based nanoentities, apart from being indispensable research tools, have found extensive use in the industrial and biomedical arena. Because their biological impacts are governed by factors such as size, shape, and composition, such issues must be taken into account when these materials are incorporated into multi-component ensembles for clinical applications. The size and shape (rods, wires, sheets, tubes, and cages) of metallic nanostructures influence cell viability by virtue of their varied geometry and physicochemical interactions with mammalian cell membranes. The anisotropic properties of nonspherical metal-based nanoarchitectures render them exciting candidates for biomedical applications. Here, the size-, shape-, and composition-dependent properties of nonspherical metal-based nanoarchitectures are reviewed in the context of their potential applications in cancer diagnostics and therapeutics, as well as, in regenerative medicine. Strategies for the synthesis of nonspherical metal-based nanoarchitectures and their cytotoxicity and immunological profiles are also comprehensively appraised.
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Affiliation(s)
| | - Xuanqi Zheng
- Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Pooyan Makvandi
- Istituto Italiano di Tecnologia, Centre for Micro-BioRobotics, viale Rinaldo Piaggio 34, Pontedera, Pisa, 56025, Italy
| | - Homa Gheybi
- Institute of Polymeric Materials and Faculty of Polymer Engineering, Sahand University of Technology, Tabriz, 53318-17634, Iran
| | - Rossella Sartorius
- Institute of Biochemistry and Cell Biology (IBBC), National Research Council (CNR), Naples, 80131, Italy
| | - Cynthia K Y Yiu
- Paediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, Hong Kong SAR, China
| | - Mohsen Adeli
- Department of Chemistry, Faculty of Science, Lorestan University, Khorramabad, 68151-44316, Iran
| | - Aimin Wu
- Department of Orthopaedics, Zhejiang Provincial Key Laboratory of Orthopaedics, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, 325027, China
| | - Ali Zarrabi
- Sabanci University Nanotechnology Research and Application Center (SUNUM), Tuzla, Istanbul, 34956, Turkey
| | - Rajender S Varma
- Regional Centre of Advanced Technologies and Materials, Palacký University in Olomouc, Šlechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Franklin R Tay
- College of Graduate Studies, Augusta University, Augusta, GA, 30912, USA
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21
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Shen Y, Ma C, Zhang S, Li P, Zhu W, Zhang X, Gao J, Song H, Chen D, Pang D, Li A. Nanosilver and protonated carbon nitride co-coated carbon cloth fibers based non-enzymatic electrochemical sensor for determination of carcinogenic nitrite. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 742:140622. [PMID: 32721742 DOI: 10.1016/j.scitotenv.2020.140622] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/27/2020] [Accepted: 06/28/2020] [Indexed: 06/11/2023]
Abstract
A novel electrochemical nitrite (NaNO2) sensor was fabricated by combining nanosilver with protonated carbon nitride (H-C3N4) supported on carbon cloth (CC). H-C3N4 was distributed uniformly on the CC surface, providing more active sites for the electrocatalytic active center (nanosilver). CC as a substrate improved the H-C3N4 conductivity and provided the sensor with a flexible feature. The strong synergistic effect between CC, H-C3N4, and nanosilver can exert a significant electrocatalytic performance on the flexible sensor. The Ag/H-C3N4/CC flexible sensor electrode did not consume much more time to polish the surface of traditional electrodes, and possessed a high sensitivity of 0.85537 μA/mg, a wide linear response range that spanned 5 to 1000 μM, a low detection limit of 0.216 μM (S/N = 3), and high selectivity for nitrite in the presence of common organic and inorganic interfering species (such as CaCl2, NaCl, MgCl2, NaNO3, glucose, urea, and p-nitrophenol). The Ag/H-C3N4/CC flexible sensor can be used for sample detection of nitrite as it has a strong anti-interference ability, good reproducibility, repeatability, and long-term stability. The Ag/H-C3N4/CC sensor is a promising alternative electrode to traditional ones such as ITO, gold or glassy carbon electrodes.
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Affiliation(s)
- Yuliang Shen
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Chuang Ma
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Shupeng Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China; State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering, Yancheng 210009, PR China.
| | - Pengcheng Li
- Hubei Key Laboratory of Plasma Chemistry and Advanced Materials, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430205, PR China.
| | - Weiqing Zhu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Xumei Zhang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Juanjuan Gao
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Haiou Song
- School of Environment, Nanjing Normal University, Nanjing 210097, PR China.
| | - Duozhe Chen
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Di Pang
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, PR China
| | - Aimin Li
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, PR China; Nanjing University & Yancheng Academy of Environmental Protection Technology and Engineering, Yancheng 210009, PR China.
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22
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Muhammad Q, Jang Y, Kang SH, Moon J, Kim WJ, Park H. Modulation of immune responses with nanoparticles and reduction of their immunotoxicity. Biomater Sci 2020; 8:1490-1501. [PMID: 31994542 DOI: 10.1039/c9bm01643k] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Particles with a size range of 1-100 nm used in various fields of life sciences are called nanoparticles (NPs). Currently, nanotechnology has a wide range of applications in biomedical research, industries and in almost all types of modern technology. The growing applications of nanotechnology in medicine urge scientists to analyze the impact of NPs on human body tissues and the immune system. Easy surface modifications of the NPs enable the modulation of the immune system either by evading the immune system to prevent allergic reactions or by enhancing the immunogenic response. In this review, we discussed the various possible theories and practical implications reported to date for the applications of nanotechnology in immunostimulation and immunosuppression for favorable immune response, such as vaccine delivery and cancer treatments. In the last part of this paper, we also discussed the biocompatibility and unfavorable immunotoxicity of NPs and methods for lowering their toxicity.
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Affiliation(s)
- Qasim Muhammad
- School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Republic of Korea.
| | - Yeonwoo Jang
- School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Republic of Korea.
| | - Shin Hyuk Kang
- Department of Plastic and Reconstructive Surgery, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - James Moon
- Pharmaceutical Sciences and Biomedical Engineering, University of Michigan, 500 S. State Street, Ann Arbor, MI 48109, USA
| | - Won Jong Kim
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Republic of Korea.
| | - Hansoo Park
- School of Integrative Engineering, Chung-Ang University, 221 Heukseok-Dong, Dongjak-Gu, Seoul 06974, Republic of Korea.
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Klaper RD. The Known and Unknown about the Environmental Safety of Nanomaterials in Commerce. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2020; 16:e2000690. [PMID: 32407002 DOI: 10.1002/smll.202000690] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/17/2020] [Accepted: 03/19/2020] [Indexed: 06/11/2023]
Abstract
The widespread nanomaterial use in commercial products has fed significant concern over environmental health and safety ramifications. Initially, little was known as to how these highly reactive particulates interacted with biological systems. Nanomaterials have introduced complexities not normally considered in traditional safety assessments of chemicals and therefore have generated uncertainty in the reliability of standard tests of safety. Advances in understanding the potential impacts of nanomaterials have occurred since their introduction, particularly for those used in the greatest quantities in commerce. The impact of characteristics such as charge, size, surface functionalization, chemical composition, and certain transformations on the potential effect of nanomaterials in the environment continue to move the field forward. However, generalizations of risk based on any one factor across nanomaterials is not possible. Estimating risk also remains difficult due to the introduction of materials that are new and more complex, minimal information on the specific molecular interactions of nanomaterials and organisms, and the need for more tools for measuring the dynamics of nanomaterial state and fate in complex matrices. Finally, exposure estimates are difficult due to difficulty of environmental monitoring which may be exacerbated by lack of information on nanomaterials in products and new uses in the marketplace.
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Affiliation(s)
- Rebecca D Klaper
- School of Freshwater Sciences, University of Wisconsin-Milwaukee, 600 East Greenfield Ave., Milwaukee, Wisconsin, 53204, USA
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24
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Wang L, Xu H, Qiu Y, Liu X, Huang W, Yan N, Qu Z. Utilization of Ag nanoparticles anchored in covalent organic frameworks for mercury removal from acidic waste water. JOURNAL OF HAZARDOUS MATERIALS 2020; 389:121824. [PMID: 31843400 DOI: 10.1016/j.jhazmat.2019.121824] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 11/20/2019] [Accepted: 12/03/2019] [Indexed: 06/10/2023]
Abstract
Metal nanoparticles (NPs) have high reaction rate and atom utilization with respect to pollutants in aqueous environments. However, the aggregation and instability in acidic solution limit their practical applications. Mercury removed from acidic solution are still a big problem. In this study, we used a tunable porous covalent organic framework (COF) material as a support for in situ growth of Ag NPs via a one-step solution infiltration method, to enhance the spatial dispersion of NPs and their stability in acidic solution, and for the first time studying the mercury adsorption performance. More importantly, the Ag NPs@COF composite exhibited high removal rate (99 %), ultrahigh Ag atom utilization (150 %), high selectivity and stability, and reusability for Hg(II) removal from acidic aqueous solutions. Meantime, through common characterizations and density functional theory calculations verifying the microscopic adsorption process, we found COF material played an important role in the entire purification process because it provided some electrons to Hg(II) ions via Ag NPs, finally generating an amalgam. Therefore, the present work not only provides a COF-supported Ag NPs material for Hg(II) ions removal from acidic waste water but also opens a new field of design of functionalized COFs material for applications in environmental pollutions control.
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Affiliation(s)
- Longlong Wang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Haomiao Xu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Yixiang Qiu
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaoshuang Liu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Wenjun Huang
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Naiqiang Yan
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zan Qu
- School of Environmental Science and Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China.
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25
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Miesen TJ, Engstrom AM, Frost DC, Ajjarapu R, Ajjarapu R, Lira CN, Mackiewicz MR. A hybrid lipid membrane coating "shape-locks" silver nanoparticles to prevent surface oxidation and silver ion dissolution. RSC Adv 2020; 10:15677-15693. [PMID: 35493639 PMCID: PMC9052474 DOI: 10.1039/d0ra01727b] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 04/14/2020] [Indexed: 11/21/2022] Open
Abstract
The controlled synthesis of stable silver nanoparticles (AgNPs), that do not undergo surface oxidation and Ag+ ion dissolution, continues to be a major challenge. Here the synthesis of robust hybrid lipid-coated AgNPs, comprised of l-α-phosphatidylcholine (PC) membranes anchored by a stoichiometric amount of long-chained hydrophobic thiols and sodium oleate (SOA) as hydrophobic binding partners, that do not undergo surface oxidation and Ag+ ion dissolution, is described. UV-Visible (UV-Vis) spectroscopy, transmission electron microscopy (TEM), and inductively coupled plasma mass spectrometry (ICP-MS) demonstrate that in the presence of strong oxidants, such as potassium cyanide (KCN), the hybrid lipid-coated AgNPs are stable and do not undergo surface oxidation even in the presence of membrane destabilizing surfactants. UV-Vis studies show that the stability of hybrid lipid-coated AgNPs of various sizes and shapes is dependent on the length of the thiol hydrocarbon chain and can be ranked in the order of increasing stability as follows: propanethiol (PT) < hexanethiol (HT) ≤ decanethiol (DT). UV-Vis and ICP-MS studies show that the hybrid lipid-coated AgNPs do not change in size or shape confirming that the AgNPs do not undergo surface oxidation and Ag+ ion dissolution when placed in the presence of strong oxidants, chlorides, thiols, and low pH. Long-term stability studies, over 21 days, show that the hybrid lipid-coated AgNPs do not release Ag+ ions and are more stable. Overall, these studies demonstrate hybrid membrane encapsulation of nanomaterials is a viable method for stabilizing AgNPs in a "shape-locked" form that is unable to undergo surface oxidation, Ag+ ion release, aging, or shape conversion. More importantly, this design strategy is a simple approach to the synthesis and stabilization of AgNPs for a variety of biomedical and commercial applications where Ag+ ion release and toxicity is a concern. With robust and shielded AgNPs, investigators can now evaluate and correlate how the physical features of AgNPs influence toxicity without the confounding factor of Ag+ ions present in samples. This design strategy also provides an opportunity where the membrane composition can be tuned to control the release rate of Ag+ ions for optimizing antimicrobial activity.
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Affiliation(s)
- Thomas J Miesen
- Department of Chemistry, Portland State University Portland OR 97207 USA
| | - Arek M Engstrom
- Department of Chemistry, Portland State University Portland OR 97207 USA
| | - Dane C Frost
- Department of Chemistry, Portland State University Portland OR 97207 USA
| | - Ramya Ajjarapu
- Department of Chemistry, Portland State University Portland OR 97207 USA
| | - Rohan Ajjarapu
- Department of Chemistry, Portland State University Portland OR 97207 USA
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26
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Hu C, Wang L, Lin Y, Liang H, Zhou S, Zheng F, Feng X, Rui Y, Shao L. Nanoparticles for the Treatment of Oral Biofilms: Current State, Mechanisms, Influencing Factors, and Prospects. Adv Healthc Mater 2019; 8:e1901301. [PMID: 31763779 DOI: 10.1002/adhm.201901301] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2019] [Revised: 10/31/2019] [Indexed: 02/06/2023]
Abstract
Due to their excellent size, designability, and outstanding targeted antibacterial effects, nanoparticles have become a potential option for controlling oral biofilm-related infections. However, the formation of an oral biofilm is a dynamic process, and factors affecting the performance of antibiofilm treatments are complex. As such, when examining the existing literature on the antibiofilm effects of nanoparticles, attention should be paid to the specific mechanisms of action at different stages of oral biofilm formation, as well as relevant influencing factors, in order to achieve an objective and comprehensive evaluation. This review is intended to detail the antibacterial mechanisms of nanoparticles during the four stages of the formation of oral biofilms: 1) acquired film formation; 2) bacterial adhesion; 3) early biofilm development; and 4) biofilm maturation. In addition, factors influencing the antibiofilm properties of nanoparticles are summarized from the aspects of nanoparticles themselves, biofilm models, and host factors. The limitations of current research and possible trends for future research are also discussed. In summary, nanoparticles are a promising antioral biofilm strategy. It is hoped that this review can serve as a reference and inspire ideas for further research on the application of nanoparticles for effectively targeting and treating oral biofilms.
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Affiliation(s)
- Chen Hu
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Lin‐Lin Wang
- Department of StomatologyHainan General Hospital Haikou Hainan 570311 China
| | - Yu‐Qing Lin
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Hui‐Min Liang
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Shan‐Yu Zhou
- Department of StomatologyThe People's Hospital of Longhua Shenzhen 518109 China
| | - Fen Zheng
- Laboratory Medicine CenterNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Laboratory MedicineFoshan Women and Children Hospital Foshan Guangdong 528000 China
| | - Xiao‐Li Feng
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
| | - Yong‐Yu Rui
- Laboratory Medicine CenterNanfang HospitalSouthern Medical University Guangzhou 510515 China
| | - Long‐Quan Shao
- Department of StomatologyNanfang HospitalSouthern Medical University Guangzhou 510515 China
- Guangdong Provincial Key Laboratory of Construction and Detection in Tissue Engineering Guangzhou 510515 China
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27
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Exposure of stevia (Stevia rebaudiana B.) to silver nanoparticles in vitro: transport and accumulation. Sci Rep 2019; 9:10372. [PMID: 31316123 PMCID: PMC6637181 DOI: 10.1038/s41598-019-46828-y] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 07/03/2019] [Indexed: 12/21/2022] Open
Abstract
The impact of nanotechnology in the field of agricultural sciences creates the need to study in greater detail the effect of products offering nanoparticles for application in plant species of agricultural interest. The objective of this study was to determine the response of stevia (Stevia rebaudiana B.) in vitro to different concentrations of AgNPs (silver nanoparticles), as well as to characterize and identify their absorption, translocation and accumulation mechanisms. Nodal segments of stevia grown in MS medium supplemented with AgNPs (0,12.5, 25, 50,100 and 200 mg L−1) were used. After 30 days of in vitro shoot proliferation, the number of shoots per explant, shoot length, chlorophyll content, dry matter content and the metallic silver (Ag) content of the plants were quantified. In addition, characterization, transport and accumulation of silver nanoparticles were performed by microscopic analysis. AgNPs were shown to be present in epidermal stem cells, within vascular bundles and in intermembrane spaces. In leaves, they were observed in ribs and stomata. The current and future use of AgNPs in agricultural sciences opens up the possibility of studying their effects on different plant species.
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28
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Abbas Q, Liu G, Yousaf B, Ali MU, Ullah H, Ahmed R. Effects of biochar on uptake, acquisition and translocation of silver nanoparticles in rice (Oryza sativa L.) in relation to growth, photosynthetic traits and nutrients displacement. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2019; 250:728-736. [PMID: 31035155 DOI: 10.1016/j.envpol.2019.04.083] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/13/2019] [Accepted: 04/16/2019] [Indexed: 05/22/2023]
Abstract
Rapid development in nanotechnology and incorporation of silver nanoparticles (AgNPs) in wide range of consumer products causing the considerable release of these NPs in the environment, leading concerns for ecosystem safety and plant health. In this study, rice (Oryza sativa) was exposed to AgNPs (0, 100, 200, 500 and 1000 mg L-1) in biochar amended (2 %w/v) and un-amended systems. Exposure of plants to AgNPs alone reduced the root and shoot length, biomass production, chlorophyll contents, photosynthesis related physiological parameters as well as macro-and micronutrients in a dose dependent manner. However, in case of biochar amendment, physiological parameters i.e., net photosynthesis rate, maximum photosynthesis rate, CO2 assimilation, dark respiration and stomatal conductance reduced only 16, 6, 7, 3 and 8%, respectively under AgNPs exposure at 1000 mg L-1 dose. Meanwhile, biochar at all exposure level of AgNPs decreased the bioaccumulation of Ag in rice root and shoot tissues, thus alleviated the phyto-toxic effects of NPs on plant growth. Moreover, results showed that biochar reduced the bioavailability of AgNPs by surface complexation, suppressing dissolution and release of toxic Ag+ ions in the growth medium. The presence of biochar at least decreased 2-fold tissue contents of Ag even at highest AgNPs (1000 mg L-1) concentration. These finding suggested that biochar derived from waste biomass resources can be used effectively to prevent the bioaccumulation and subsequent trophic level transfer of emerging Ag nano-pollutant in the environment.
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Affiliation(s)
- Qumber Abbas
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China.
| | - Guijian Liu
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China.
| | - Balal Yousaf
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China; State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, The Chinese Academy of Sciences, Xi'an, Shaanxi, 710075, China.
| | - Muhammad Ubaid Ali
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China.
| | - Habib Ullah
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China.
| | - Rafay Ahmed
- CAS-Key Laboratory of Crust-Mantle Materials and the Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei, 230026, PR China.
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29
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Novak S, Romih T, Drašler B, Birarda G, Vaccari L, Ferraris P, Sorieul S, Zieba M, Sebastian V, Arruebo M, Hočevar SB, Jemec Kokalj A, Drobne D. The in vivo effects of silver nanoparticles on terrestrial isopods, Porcellio scaber, depend on a dynamic interplay between shape, size and nanoparticle dissolution properties. Analyst 2019; 144:488-497. [PMID: 30467573 DOI: 10.1039/c8an01387j] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The present work aims to study the effects that acute exposure to low concentrations of silver nanoparticles (AgNPs) cause in digestive glands of terrestrial isopods (Porcellio scaber). The experiments were designed to integrate different analytical techniques, such as transmission electron microscopy, atomic absorption spectroscopy, proton induced X-ray emission, and Fourier transform IR imaging (FTIRI), in order to gain a comprehensive insight into the process from the AgNPs' synthesis to their interaction with biological tissues in vivo. To this aim, terrestrial isopods were fed with AgNPs having different shapes, sizes, and concentrations. For all the tested conditions, no toxicity at the whole organism level was observed after 14 days of exposure. However, FTIRI showed that AgNPs caused detectable local changes in proteins, lipids, nucleic acids and carbohydrates at the tissue level, to an extent dependent on the interplay of the AgNPs' properties: shape, size, concentration and dissolution of ions from them.
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Affiliation(s)
- Sara Novak
- Department of Biology, Biotechnical Faculty, University of Ljubljana, Ljubljana, Slovenia
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30
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Wu T, Xu H, Liang X, Tang M. Caenorhabditis elegans as a complete model organism for biosafety assessments of nanoparticles. CHEMOSPHERE 2019; 221:708-726. [PMID: 30677729 DOI: 10.1016/j.chemosphere.2019.01.021] [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: 10/18/2018] [Revised: 12/24/2018] [Accepted: 01/03/2019] [Indexed: 06/09/2023]
Abstract
The number of biosafety evaluation studies of nanoparticles (NPs) using different biological models is increasing with the rapid development of nanotechnology. Thus far, nematode Caenorhabditis elegans (C. elegans), as a complete model organism, has become an important in vivo alternative assay system to assess the risk of NPs, especially at the environmental level. According to results of qualitative and quantitative analyses, it can be concluded that studies of nanoscientific research using C. elegans is persistently growing. However, the comprehensive conclusion and analysis of toxic effects of NPs in C. elegans are limited and chaotic. This review focused on the effects, especially sublethal ones, induced by NPs in C. elegans, including the development, intestinal function, immune response, neuronal function, and reproduction, as well as the underlying mechanisms of NPs causing these effects, including oxidative stress and alterations of several signaling pathways. Furthermore, we presented some factors that influence the toxic effects of NPs in C. elegans. The advantages and limitations of using nematodes in the nanotoxicology study were also discussed. Finally, we predicted that the application of C. elegans to assess long-term impacts of metal oxide NPs in the ecosystem would become a vital part of the nanoscientific research field, which provided an insight for further study.
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Affiliation(s)
- Tianshu Wu
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210009, China.
| | - Hongsheng Xu
- State Grid Electric Power Research Institute, NARI Group Corporation, Nanjing, 211000, China
| | - Xue Liang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210009, China
| | - Meng Tang
- Key Laboratory of Environmental Medicine and Engineering, Ministry of Education, School of Public Health, & Collaborative Innovation Center of Suzhou Nano Science and Technology, Southeast University, Nanjing, 210009, China; Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, Nanjing, 210009, China.
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31
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Borase HP, Patil SV, Singhal RS. Moina macrocopa as a non-target aquatic organism for assessment of ecotoxicity of silver nanoparticles: Effect of size. CHEMOSPHERE 2019; 219:713-723. [PMID: 30557728 DOI: 10.1016/j.chemosphere.2018.12.031] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 11/22/2018] [Accepted: 12/05/2018] [Indexed: 06/09/2023]
Abstract
The release of nanomaterials in water reservoirs is hazardous. Very few reports are available on the interaction of different sized nanoparticles with aquatic organisms and aquatic environment. In the present study, silver nanoparticles (AgNPs) having an average particle size of 20.80 ± 2.31 and 40.04 ± 4.72 nm were synthesized using polyvinylpyrrolidone and l-tyrosine. Ecotoxicological effects of AgNPs were evaluated on less explored crustacean species, Moina macrocopa. The 48 h lethal values (48 h LC50) of 20 and 40 nm AgNPs were 0.11 ± 0.02 and 0.12 ± 0.03 mg/L, respectively. Further, a size dependent inhibition of AgNPs on acetyl cholinesterase and digestive enzymes (trypsin, amylase, β-galactosidase) was observed, while that of the antioxidant enzymes (catalase, superoxide dismutase, glutathione-S-transferase) and alkaline phosphatase were enhanced as compared to control group. These results strengthen the potential of enzymes as biomarker in environmental risk assessment of AgNPs. AgNPs accumulated in the gut of M. macrocopa which could not be completely eliminated, thereby resulting in an increased metal body burden. The accumulation of AgNPs of 20 nm was lower than that of 40 nm indicating the influence of size of nanoparticles on uptake and toxicity. AgNPs agglomerated in moderately hard water medium (MHWM) and this agglomeration influenced the exposure the organism thereto. The size of AgNPs influenced the toxicity to M. macrocopa through interplay between uptake, accumulation, aggregation, and excretion in the organism and environment.
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Affiliation(s)
- Hemant P Borase
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai 400019, Maharashtra, India.
| | - Satish V Patil
- School of Life Sciences, North Maharashtra University, Jalgaon 425001, Maharashtra, India
| | - Rekha S Singhal
- Food Engineering and Technology Department, Institute of Chemical Technology, Mumbai 400019, Maharashtra, India
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32
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Nam SH, An YJ. Size- and shape-dependent toxicity of silver nanomaterials in green alga Chlorococcum infusionum. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2019; 168:388-393. [PMID: 30396135 DOI: 10.1016/j.ecoenv.2018.10.082] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Revised: 10/16/2018] [Accepted: 10/18/2018] [Indexed: 06/08/2023]
Abstract
Silver nanomaterials (AgNMs) of different shapes and sizes are potentially toxic to aquatic organisms. However, studies on the toxicity of AgNMs and on their shape-dependent effects on algae are scarce. The present study evaluated the effects of three AgNMs (silver nanospheres, AgNPs; silver nanowires, AgNWs; silver nanoplates, AgPLs) with different shapes coated with polyvinylpyrrolidone on the growth and photosynthetic performance of an alga, Chlorococcum infusionum. We used growth measurements and determined the photosynthetic parameters based on chlorophyll fluorescence transients in the algal cells exposed to different concentrations of the three AgNMs. The effective concentrations at 50% (EC50) of AgNPs, AgNWs, and AgPLs were calculated to be 0.1, 0.045, and 0.021 mg/L, respectively. The results showed that the toxicity of AgNMs in C. infusionum was in the order, AgPLs (40 nm diameter) > AgNWs (21,000 nm length × 42 nm diameter) > AgNPs (57 nm diameter), based on the decrease in growth and three photosynthetic activities. We propose that the toxic potential of AgNMs is primarily dependent on their diameter and secondarily on their shape. Overall, this study provides, for the first time, a comparison of the growth and photosynthetic activities of C. infusionum exposed to AgNMs of three different shapes.
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Affiliation(s)
- Sun-Hwa Nam
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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33
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Roy A, Bulut O, Some S, Mandal AK, Yilmaz MD. Green synthesis of silver nanoparticles: biomolecule-nanoparticle organizations targeting antimicrobial activity. RSC Adv 2019; 9:2673-2702. [PMID: 35520490 PMCID: PMC9059941 DOI: 10.1039/c8ra08982e] [Citation(s) in RCA: 393] [Impact Index Per Article: 78.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 12/23/2018] [Indexed: 12/23/2022] Open
Abstract
Since discovery of the first antibiotic drug, penicillin, in 1928, a variety of antibiotic and antimicrobial agents have been developed and used for both human therapy and industrial applications. However, excess and uncontrolled use of antibiotic agents has caused a significant growth in the number of drug resistant pathogens. Novel therapeutic approaches replacing the inefficient antibiotics are in high demand to overcome increasing microbial multidrug resistance. In the recent years, ongoing research has focused on development of nano-scale objects as efficient antimicrobial therapies. Among the various nanoparticles, silver nanoparticles have gained much attention due to their unique antimicrobial properties. However, concerns about the synthesis of these materials such as use of precursor chemicals and toxic solvents, and generation of toxic byproducts have led to a new alternative approach, green synthesis. This eco-friendly technique incorporates use of biological agents, plants or microbial agents as reducing and capping agents. Silver nanoparticles synthesized by green chemistry offer a novel and potential alternative to chemically synthesized nanoparticles. In this review, we discuss the recent advances in green synthesis of silver nanoparticles, their application as antimicrobial agents and mechanism of antimicrobial mode of action.
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Affiliation(s)
- Anupam Roy
- Laboratory of Food Chemistry and Technology, Department of Chemical Engineering, Birla Institute of Technology Mesra Ranchi-835215 India
| | - Onur Bulut
- Department of Molecular Biology and Genetics, Faculty of Agriculture and Natural Sciences, Konya Food and Agriculture University 42080 Konya Turkey
- Department of Biological Sciences, Middle East Technical University 06800 Ankara Turkey
- Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University 42080 Konya Turkey
| | - Sudip Some
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Uttar Dinajpur-733134 India
| | - Amit Kumar Mandal
- Chemical Biology Laboratory, Department of Sericulture, Raiganj University Uttar Dinajpur-733134 India
| | - M Deniz Yilmaz
- Research and Development Center for Diagnostic Kits (KIT-ARGEM), Konya Food and Agriculture University 42080 Konya Turkey
- Department of Bioengineering, Faculty of Engineering and Architecture, Konya Food and Agriculture University 42080 Konya Turkey
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Moon J, Kwak JI, An YJ. The effects of silver nanomaterial shape and size on toxicity to Caenorhabditis elegans in soil media. CHEMOSPHERE 2019; 215:50-56. [PMID: 30312916 DOI: 10.1016/j.chemosphere.2018.09.177] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 09/27/2018] [Accepted: 09/29/2018] [Indexed: 06/08/2023]
Abstract
Silver nanomaterials (AgNMs) of various shapes and sizes are manufactured for different purposes and used as ingredients in a wide variety of products and applications. Recently, the toxicity of AgNMs has attracted significant attention. However, the effect of the shape of AgNMs (particles, wires, plates) on their toxicity in soil ecosystems remains poorly understood. In this study, we added AgNMs of different shapes and sizes (silver nanoparticles, AgNPs; 10 μm silver nanowires, 10-AgNWs; 20 μm silver nanowires, 20-AgNWs; silver nanoplates, AgPLs) to natural soil and determined their effect on the growth and reproduction of the free-living nematode, Caenorhabditis elegans. AgNPs and AgPLs were found to inhibit the growth and reproduction of C. elegans, whereas AgNWs had a negligible effect. Among these AgNMs, the results of this study suggest AgNPs are the most toxic. This confirms that the shape of AgNPs plays a significant role in their toxicity level. To the best of our knowledge, this is the first comparative analysis of the shape-dependent toxicity of AgNMs in the soil using nematode C. elegans. This study provides a scientific reference for assessing shape-dependent soil nanotoxicity.
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Affiliation(s)
- Jongmin Moon
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Jin Il Kwak
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea.
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35
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Efficient Antibacterial and Low Cytotoxic Potential of Silver Nanoparticles Produced Instantaneously Using Dimeric Gallate. ChemistrySelect 2018. [DOI: 10.1002/slct.201803145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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36
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Achari GA, Kowshik M. Recent Developments on Nanotechnology in Agriculture: Plant Mineral Nutrition, Health, and Interactions with Soil Microflora. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8647-8661. [PMID: 30036480 DOI: 10.1021/acs.jafc.8b00691] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Plant mineral nutrition is important for obtaining higher agricultural productivity to meet the future demands of the increasing global human population. It is envisaged that nanotechnology can provide sustainable solutions by replacing traditional bulk fertilizers with their nanoparticulate counterparts possessing superior properties to overcome the current challenges of bioavailability and uptake of minerals, increasing crop yield, reducing fertilizer wastage, and protecting the environment. Recent studies have shown that nanoparticles of essential minerals and nonessential elements affect plant growth, physiology, and development, depending on their size, composition, concentration, and mode of application. The current review includes the recent findings on the positive as well as negative effects that nanofertilizers exert on plants when applied via foliar and soil routes, their effects on plant associated microorganisms, and potential for controlling agricultural pests. This review suggests future research needed for the development of sustained release nanofertilizers for enhancing food production and environmental protection.
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Affiliation(s)
- Gauri A Achari
- Department of Biological Sciences , Birla Institute of Technology and Science Pilani , KK Birla Goa Campus, Zuarinagar , Goa 403726 , India
| | - Meenal Kowshik
- Department of Biological Sciences , Birla Institute of Technology and Science Pilani , KK Birla Goa Campus, Zuarinagar , Goa 403726 , India
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37
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Hanna SK, Bustos AM, Peterson AW, Reipa V, Scanlan LD, Coskun SH, Cho TJ, Johnson ME, Hackley VA, Nelson BC, Winchester MR, Elliott JT, Petersen EJ. Agglomeration of Escherichia coli with Positively Charged Nanoparticles Can Lead to Artifacts in a Standard Caenorhabditis elegans Toxicity Assay. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:5968-5978. [PMID: 29672024 PMCID: PMC6081640 DOI: 10.1021/acs.est.7b06099] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The increased use and incorporation of engineered nanoparticles (ENPs) in consumer products requires a robust assessment of their potential environmental implications. However, a lack of standardized methods for nanotoxicity testing has yielded results that are sometimes contradictory. Standard ecotoxicity assays may work appropriately for some ENPs with minimal modification but produce artifactual results for others. Therefore, understanding the robustness of assays for a range of ENPs is critical. In this study, we evaluated the performance of a standard Caenorhabditis elegans ( C. elegans) toxicity assay containing an Escherichia coli ( E. coli) food supply with silicon, polystyrene, and gold ENPs with different charged coatings and sizes. Of all the ENPs tested, only those with a positively charged coating caused growth inhibition. However, the positively charged ENPs were observed to heteroagglomerate with E. coli cells, suggesting that the ENPs impacted the ability of nematodes to feed, leading to a false positive toxic effect on C. elegans growth and reproduction. When the ENPs were tested in two alternate C. elegans assays that did not contain E. coli, we found greatly reduced toxicity of ENPs. This study illustrates a key unexpected artifact that may occur during nanotoxicity assays.
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Affiliation(s)
| | - Antonio Montoro Bustos
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Alexander W. Peterson
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Vytas Reipa
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | | | - Sanem Hosbas Coskun
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Tae Joon Cho
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Monique E. Johnson
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Vincent A. Hackley
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Bryant C. Nelson
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Michael R. Winchester
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - John T. Elliott
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
| | - Elijah J. Petersen
- Materials Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899-8313
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38
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Metch JW, Burrows ND, Murphy CJ, Pruden A, Vikesland PJ. Metagenomic analysis of microbial communities yields insight into impacts of nanoparticle design. NATURE NANOTECHNOLOGY 2018; 13:253-259. [PMID: 29335567 DOI: 10.1038/s41565-017-0029-3] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/04/2016] [Accepted: 11/14/2017] [Indexed: 05/27/2023]
Abstract
Next-generation DNA sequencing and metagenomic analysis provide powerful tools for the environmentally friendly design of nanoparticles. Herein we demonstrate this approach using a model community of environmental microbes (that is, wastewater-activated sludge) dosed with gold nanoparticles of varying surface coatings and morphologies. Metagenomic analysis was highly sensitive in detecting the microbial community response to gold nanospheres and nanorods with either cetyltrimethylammonium bromide or polyacrylic acid surface coatings. We observed that the gold-nanoparticle morphology imposes a stronger force in shaping the microbial community structure than does the surface coating. Trends were consistent in terms of the compositions of both taxonomic and functional genes, which include antibiotic resistance genes, metal resistance genes and gene-transfer elements associated with cell stress that are relevant to public health. Given that nanoparticle morphology remained constant, the potential influence of gold dissolution was minimal. Surface coating governed the nanoparticle partitioning between the bioparticulate and aqueous phases.
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Affiliation(s)
- Jacob W Metch
- Via Department of Civil and Environmental Engineering and Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, Blacksburg, VA, USA
| | - Nathan D Burrows
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Catherine J Murphy
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Amy Pruden
- Via Department of Civil and Environmental Engineering and Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, Blacksburg, VA, USA.
| | - Peter J Vikesland
- Via Department of Civil and Environmental Engineering and Institute for Critical Technology and Applied Science (ICTAS), Virginia Tech, Blacksburg, VA, USA.
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39
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Gwin CA, Gunsch CK. Examining relationships between total silver concentration and Sil silver resistance genes in domestic wastewater treatment plants. J Appl Microbiol 2018; 124:1638-1646. [PMID: 29444378 DOI: 10.1111/jam.13731] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 01/22/2018] [Accepted: 02/02/2018] [Indexed: 11/29/2022]
Abstract
AIMS The overarching aims of this study were to determine if microbes found in wastewater treatment plants (WWTPs) carry silver resistance genes and ascertain whether a relationship exists between silver loading and sil silver resistance gene copy numbers. METHODS AND RESULTS Activated sludge samples were collected from 17 WWTPs across the United States and characterized for chemical oxygen demand (COD) and total silver concentration. Gene copy numbers were quantified using qPCR for four common silver resistance genes (silC, silP, silR and silS). Spearman correlation analyses were performed to examine associations between three WWTP characteristics (i.e. size, COD and total silver concentration) and sil gene copy numbers. sil genes were found in all activated sludge samples, however the quantity of gene copy numbers was inconsistent. Of the sil genes screened, silS was the most abundant, followed by silR. Gene copy numbers for silC and silP were generally similar and overall lower than silS and silR. CONCLUSIONS Neither individual or combined sil gene copy numbers correlated significantly with total silver concentration, suggesting either the presence of alternate mechanisms of silver resistance or that a critical silver concentration threshold within WWTPs was not met that would require specific resistance against silver. SIGNIFICANCE AND IMPACT OF THIS STUDY To the authors' knowledge, this is one of the first studies to measure the prevalence of sil genes in engineered systems. Results from this study suggest that at least four silver resistance genes are commonly found within WWTP-activated sludge, however it is unclear if these genes are being expressed under current total silver loadings.
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Affiliation(s)
- C A Gwin
- Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA.,Center for Environmental Implications of NanoTechnology (CEINT), Duke University, Durham, NC, USA
| | - C K Gunsch
- Department of Civil and Environmental Engineering, Duke University, Durham, NC, USA.,Center for Environmental Implications of NanoTechnology (CEINT), Duke University, Durham, NC, USA
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40
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Nam S, Park B, Condon BD. Water-based binary polyol process for the controllable synthesis of silver nanoparticles inhibiting human and foodborne pathogenic bacteria. RSC Adv 2018; 8:21937-21947. [PMID: 35541741 PMCID: PMC9081116 DOI: 10.1039/c8ra01823e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Accepted: 06/06/2018] [Indexed: 11/21/2022] Open
Abstract
The polyol process is a widely used strategy for producing nanoparticles from various reducible metallic precursors; however, it requires a bulk polyol liquid reaction with additional protective agents at high temperatures. Here, we report a water-based binary polyol process using low concentrations of high-molecular-weight polyethylene glycol (100 000 g mol−1, 2 wt%) and ethylene glycol (5 wt%). The entangled conformation of the polyethylene glycol in water and the increased number of reducing sites by the ethylene glycol cooperatively contributed to the stability and effectiveness of reduction reaction and particle growth, producing uniformly sized silver nanoparticles (15.8 ± 2.2 nm) with no additional protective agents at a mild temperature of 80 °C. The measurement of particle size throughout the reaction and the dependence of the optical density of a silver colloidal solution on the concentration of ethylene glycol revealed three stages of particle growth. The minimum inhibitory concentrations of the purified silver nanoparticles against four representative human and foodborne pathogenic bacteria—S. aureus, P. aeruginosa, S. enterica, and E. coli—were 4.7, 2.3, 2.3, and 1.2 μg mL−1, respectively. A water-based binary polyol process, where the entangled conformation of polyethylene glycol activated the reduction reaction of ethylene glycol and stabilized the particle growth, produced silver nanoparticles with enhanced antibacterial property.![]()
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Affiliation(s)
- Sunghyun Nam
- United States Department of Agriculture
- Agricultural Research Service
- Southern Regional Research Center
- New Orleans
- USA
| | - Bosoon Park
- United States Department of Agriculture
- Agricultural Research Service
- U.S. National Poultry Research Center
- 950 College Station Rd
- Athens
| | - Brian D. Condon
- United States Department of Agriculture
- Agricultural Research Service
- Southern Regional Research Center
- New Orleans
- USA
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41
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Cui R, Chae Y, An YJ. Dimension-dependent toxicity of silver nanomaterials on the cladocerans Daphnia magna and Daphnia galeata. CHEMOSPHERE 2017; 185:205-212. [PMID: 28697426 DOI: 10.1016/j.chemosphere.2017.07.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 06/30/2017] [Accepted: 07/02/2017] [Indexed: 06/07/2023]
Abstract
Silver nanomaterials (AgNMs) are widely used in many fields because of their antimicrobial properties. Depending on the shapes and dimensions of the AgNMs, their potential uses and needs vary. Consequently, vast quantities of multi-dimensional AgNMs are being manufactured and released into aquatic ecosystems, where they have toxic effects on aquatic organisms. Therefore, an assessment of the toxicities of each multi-dimensional AgNM on aquatic ecosystems is necessary. In this study, important aquatic model species, Daphnia magna and Daphnia galeata, were used to assess and compare the toxic effects of silver ions (Ag+ ions) and multi-dimensional AgNMs, including silver nanoparticles (AgNPs), silver nanowires (AgNWs), and silver nanoplates (AgPLs). The results indicated that Ag+ ions were more toxic than AgNMs of different dimensions and sizes, and that AgPLs were the most toxic of the AgNMs. In the case of AgNWs, the longer (20 μm) nanowire was more toxic than the shorter (10 μm) one. In addition, D. galeata was more sensitive than D. magna to both Ag+ ions and AgNMs. This study elucidates the dimension-dependent toxicity of and silver ions and nanomaterials in the cladocerans D. magna and D. galeata. Further studies will be necessary to further elucidate the actual risk of multi-dimensional nanomaterials in ecosystems.
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Affiliation(s)
- Rongxue Cui
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Yooeun Chae
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea
| | - Youn-Joo An
- Department of Environmental Health Science, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, South Korea.
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42
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Goyal D, Kaur G, Tewari R, Kumar R. Correlation of edge truncation with antibacterial activity of plate-like anisotropic silver nanoparticles. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2017; 24:20429-20437. [PMID: 28707245 DOI: 10.1007/s11356-017-9630-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2016] [Accepted: 06/26/2017] [Indexed: 06/07/2023]
Abstract
The effect of silver nanoparticle anisotropy on the antibacterial properties has been studied against Escherichia coli, Staphylococcus aureus, Bacillus, Vibrio cholerae, and Streptococcus pyogenes. Anisotropic silver nanoparticles have been synthesized by solvothermal process. The UV-visible absorption, X-ray diffraction, and TEM studies show the anisotropic nature of silver nanoparticles. The results demonstrate that the anisotropic silver nanoparticles undergo a shape-dependent interaction with the bacteria, and the nanoparticles with higher anisotropy exhibit the superior antibacterial activity. Silver nanoparticles with sharp edges and corners displayed the stronger biocidal action, in comparison to the anisotropic nanoparticles with round edges and corners. The sharpness of the corners has been quantified using degree of truncation method. The variation in degree of truncation and the antibacterial activity follows the same pattern.
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Affiliation(s)
- Divya Goyal
- Department of Physics, Panjab University, Chandigarh, 160014, India
| | - Gaganpreet Kaur
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India
| | - Rupinder Tewari
- Department of Microbial Biotechnology, Panjab University, Chandigarh, 160014, India
| | - Rajesh Kumar
- Department of Physics, Panjab University, Chandigarh, 160014, India.
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43
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Kundu N, Mukherjee D, Maiti TK, Sarkar N. Protein-Guided Formation of Silver Nanoclusters and Their Assembly with Graphene Oxide as an Improved Bioimaging Agent with Reduced Toxicity. J Phys Chem Lett 2017; 8:2291-2297. [PMID: 28468496 DOI: 10.1021/acs.jpclett.7b00600] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
As an emerging category of fluorescent metal nanoclusters (NCs), protein-based NCs are considered as one of the promising candidates for the biomedical applications because of their luminescent properties and inherent biocompatibilities. Protein-capped silver NCs impregnated onto graphene oxide (GO) sheets can be internalized into the K562 cell, a human erythroleukemic cell line, and the Ag NCs/GO assembly can act as a synergistic drug carrier for Imatinib, a first-generation tyrosine kinase inhibitor. Further, Ag NCs adsorbed on GO have a great potential to be used as X-ray computer tomography (CT) imaging contrasting agents, and CT images show significant contrast enhancement of bone tissues in mice models. Overall, this assembly can exhibit great potential in the field of biomedical application and therapeutic studies.
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Affiliation(s)
- Niloy Kundu
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Devdeep Mukherjee
- Department of Biotechnology, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Tapas Kumar Maiti
- Department of Biotechnology, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
| | - Nilmoni Sarkar
- Department of Chemistry, Indian Institute of Technology , Kharagpur 721302, West Bengal, India
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44
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Mirshafiee V, Jiang W, Sun B, Wang X, Xia T. Facilitating Translational Nanomedicine via Predictive Safety Assessment. Mol Ther 2017; 25:1522-1530. [PMID: 28412168 DOI: 10.1016/j.ymthe.2017.03.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/04/2017] [Accepted: 03/05/2017] [Indexed: 11/29/2022] Open
Abstract
Extensive research on engineered nanomaterials (ENMs) has led to the development of numerous nano-based formulations for theranostic purposes. Although some nano-based drug delivery systems already exist on the market, growing numbers of newly designed ENMs exhibit improved physicochemical properties and are being assessed in preclinical stages. While these ENMs are designed to improve the efficacy of current nano-based therapeutic or imaging systems, it is necessary to thoroughly determine their safety profiles for successful clinical applications. As such, our aim in this mini-review is to discuss the current knowledge on predictive safety and structure-activity relationship (SAR) analysis of major ENMs at the developing stage, as well as the necessity of additional long-term toxicological analysis that would help to facilitate their transition into clinical practices. We focus on how the interaction of these nanomaterials with cells would trigger signaling pathways as molecular initiating events that lead to adverse outcomes. These mechanistic understandings would help to design safer ENMs with improved therapeutic efficacy in clinical settings.
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Affiliation(s)
- Vahid Mirshafiee
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Wen Jiang
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Bingbing Sun
- Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, CA 90095, USA; State Key Laboratory of Fine Chemicals, Department of Chemical Engineering, Dalian University of Technology, 2 Linggong Rd., Dalian 116024, China
| | - Xiang Wang
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA
| | - Tian Xia
- Center for Environmental Implications of Nanotechnology (CEIN), California NanoSystems Institute (CNSI), University of California Los Angeles, 570 Westwood Plaza, Los Angeles, CA 90095, USA; Division of NanoMedicine, Department of Medicine, University of California Los Angeles, 10833 Le Conte Ave., Los Angeles, CA 90095, USA; State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
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45
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Jiang HS, Yin LY, Ren NN, Zhao ST, Li Z, Zhi Y, Shao H, Li W, Gontero B. Silver nanoparticles induced reactive oxygen species via photosynthetic energy transport imbalance in an aquatic plant. Nanotoxicology 2017; 11:157-167. [PMID: 28044463 DOI: 10.1080/17435390.2017.1278802] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The rapid growth in silver nanoparticles (AgNPs) commercialization has increased environmental exposure, including aquatic ecosystem. It has been reported that the AgNPs have damaging effects on photosynthesis and induce oxidative stress, but the toxic mechanism of AgNPs is still a matter of debate. In the present study, on the model aquatic higher plant Spirodela polyrhiza, we found that AgNPs affect photosynthesis and significantly inhibit Photosystem II (PSII) maximum quantum yield (Fv/Fm) and effective quantum yield (ΦPSII). The changes of non-photochemical fluorescence quenching (NPQ), light-induced non-photochemical fluorescence quenching [Y(NPQ)] and non-light-induced non-photochemical fluorescence quenching [Y(NO)] showed that AgNPs inhibit the photo-protective capacity of PSII. AgNPs induce reactive oxygen species (ROS) that are mainly produced in the chloroplast. The activity of ribulose-1, 5-bisphosphate carboxylase-oxygenase (Rubisco) was also very sensitive to AgNPs. The internalized Ag, regardless of whether the exposure was Ag+ or AgNPs had the same capacity to generate ROS. Our results support the hypothesis that intra-cellular AgNP dissociate into high toxic Ag+. Rubisco inhibition leads to slowing down of CO2 assimilation. Consequently, the solar energy consumption decreases and then the excess excitation energy promotes ROS generation in chloroplast.
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Affiliation(s)
- Hong Sheng Jiang
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China.,b University of Chinese Academy of Sciences , Beijing , China.,c BIP UMR 7281, Aix Marseille Univ CNRS , 31 Chemin Joseph Aiguier, Marseille Cedex 20, Marseille, France
| | - Li Yan Yin
- d Hainan Key Laboratory for Sustainable Utilization of Tropical Bioresources, Hainan University , Haikou , China
| | - Na Na Ren
- e College of Geosciences, China University of Petroleum , Beijing , China
| | - Su Ting Zhao
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China.,b University of Chinese Academy of Sciences , Beijing , China
| | - Zhi Li
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China.,b University of Chinese Academy of Sciences , Beijing , China
| | - Yongwei Zhi
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China
| | - Hui Shao
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China.,b University of Chinese Academy of Sciences , Beijing , China
| | - Wei Li
- a Key Laboratory of Aquatic Botany and Watershed Ecology, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China.,f Hubei Key Laboratory of Wetland Evolution & Ecological Restoration, Wuhan Botanical Garden, Chinese Academy of Sciences , Wuhan , China
| | - Brigitte Gontero
- c BIP UMR 7281, Aix Marseille Univ CNRS , 31 Chemin Joseph Aiguier, Marseille Cedex 20, Marseille, France
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Sannicolo T, Lagrange M, Cabos A, Celle C, Simonato JP, Bellet D. Metallic Nanowire-Based Transparent Electrodes for Next Generation Flexible Devices: a Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2016; 12:6052-6075. [PMID: 27753213 DOI: 10.1002/smll.201602581] [Citation(s) in RCA: 212] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 09/16/2016] [Indexed: 05/02/2023]
Abstract
Transparent electrodes attract intense attention in many technological fields, including optoelectronic devices, transparent film heaters and electromagnetic applications. New generation transparent electrodes are expected to have three main physical properties: high electrical conductivity, high transparency and mechanical flexibility. The most efficient and widely used transparent conducting material is currently indium tin oxide (ITO). However the scarcity of indium associated with ITO's lack of flexibility and the relatively high manufacturing costs have a prompted search into alternative materials. With their outstanding physical properties, metallic nanowire (MNW)-based percolating networks appear to be one of the most promising alternatives to ITO. They also have several other advantages, such as solution-based processing, and are compatible with large area deposition techniques. Estimations of cost of the technology are lower, in particular thanks to the small quantities of nanomaterials needed to reach industrial performance criteria. The present review investigates recent progress on the main applications reported for MNW networks of any sort (silver, copper, gold, core-shell nanowires) and points out some of the most impressive outcomes. Insights into processing MNW into high-performance transparent conducting thin films are also discussed according to each specific application. Finally, strategies for improving both their stability and integration into real devices are presented.
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Affiliation(s)
- Thomas Sannicolo
- Univ. Grenoble Alpes, CEA, LITEN, F-38054, Grenoble, France
- Univ. Grenoble Alpes, CNRS, LMGP, F-38000, Grenoble, France
| | | | - Anthony Cabos
- Univ. Grenoble Alpes, CEA, LITEN, F-38054, Grenoble, France
| | - Caroline Celle
- Univ. Grenoble Alpes, CEA, LITEN, F-38054, Grenoble, France
| | | | - Daniel Bellet
- Univ. Grenoble Alpes, CNRS, LMGP, F-38000, Grenoble, France
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47
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Gorka DE, Liu J. Effect of Direct Contact on the Phytotoxicity of Silver Nanomaterials. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:10370-10376. [PMID: 27580021 DOI: 10.1021/acs.est.6b02434] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The increasing use of silver nanomaterials (AgNMs) in consumer products will result in an increased amount entering the environment, where AgNMs were recently found to cause phytotoxicity in the model plant Lolium multiflorum. To better understand the causes of the phytotoxicity, we have designed a new set of experiments to study the effect of AgNM dissolution. Dissolution of AgNMs was measured over a 1-month period to determine if dissolution alone caused phytotoxicity. Very little dissolution was observed over the testing period, suggesting a different mechanism caused the majority of the toxicity. To further confirm this hypothesis, AgNMs were physically separated from the seeds and plants by a dialysis membrane. Toxicity was ameliorated in AgNM-exposed plants, showing that direct contact between AgNMs and plant seeds/roots is a required condition for the observed phytotoxicity in plant models. Probing further, a surface reactivity assay showed increased surface reactivity of silver nanoparticles (AgNPs) and silver nanocubes (AgNCs) corresponded to increased toxicity compared to silver nanowires (AgNWs). The work here can help build the knowledge base regarding shape control of nanomaterials and reducing unintended side effects.
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Affiliation(s)
- Danielle E Gorka
- Center for the Environmental Implications of NanoTechnology (CEINT) and ‡Department of Chemistry, Duke University , Durham, North Carolina 27708, United States
| | - Jie Liu
- Center for the Environmental Implications of NanoTechnology (CEINT) and ‡Department of Chemistry, Duke University , Durham, North Carolina 27708, United States
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Kasyanenko N, Bakulev V, Perevyazko I, Nekrasova T, Nazarova O, Slita A, Zolotova Y, Panarin E. Model system for multifunctional delivery nanoplatforms based on DNA-Polymer complexes containing silver nanoparticles and fluorescent dye. J Biotechnol 2016; 236:78-87. [DOI: 10.1016/j.jbiotec.2016.08.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Revised: 08/07/2016] [Accepted: 08/12/2016] [Indexed: 10/21/2022]
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Zhai Y, Hunting ER, Wouters M, Peijnenburg WJGM, Vijver MG. Silver Nanoparticles, Ions, and Shape Governing Soil Microbial Functional Diversity: Nano Shapes Micro. Front Microbiol 2016; 7:1123. [PMID: 27504108 PMCID: PMC4959451 DOI: 10.3389/fmicb.2016.01123] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 07/06/2016] [Indexed: 11/29/2022] Open
Abstract
Silver nanoparticles (AgNPs) affect microbial metabolic processes at single cell level or lab-culture strains. However, the impact of different AgNPs properties such as the particle, ion release, and shape on functional responses of natural soil microbial communities remain poorly understood. Therefore, we assessed the relative importance of particles and ions of AgNPs in bacterial toxicity and how the functional diversity of soil microbial communities were impacted by AgNPs shapes (i.e., plates, spheres, and rods) in laboratory incubations. Our results showed that the relative contribution of AgNPs(particle) increased with increasing exposure concentrations (accounted for about 60–68% of the total toxicity at the highest exposure level). In addition, the functional composition of the microbial community differed significantly according to different AgNPs shapes. The various properties of AgNPs thus can significantly and differentially affect the functional composition of microbial communities and associated ecosystem processes depending on the level of environmental exposure.
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Affiliation(s)
- Yujia Zhai
- Institute of Environmental Sciences, Leiden University Leiden, Netherlands
| | - Ellard R Hunting
- Institute of Environmental Sciences, Leiden University Leiden, Netherlands
| | - Marja Wouters
- National Institute of Public Health and the Environment Bilthoven, Netherlands
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences, Leiden UniversityLeiden, Netherlands; National Institute of Public Health and the EnvironmentBilthoven, Netherlands
| | - Martina G Vijver
- Institute of Environmental Sciences, Leiden University Leiden, Netherlands
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Formo EV, Potterf CB, Yang M, Unocic RR, Leonard DN, Pawel M. How a Nanostructure's Shape Affects its Lifetime in the Environment: Comparing a Silver Nanocube to a Nanoparticle When Dispersed in Aqueous Media. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2016; 50:7082-7089. [PMID: 27253183 DOI: 10.1021/acs.est.6b01172] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Herein, we detail how the morphology of a nanomaterial affects its environmental lifetime in aquatic ecosystems. In particular, we focus on the cube and particle nanostructures of Ag and age them in various aquatic mediums including synthetic hard water, pond water, and seawater. Our results show that in the synthetic hard water and pond water cases, there was little difference in the rate of morphological changes as determined by UV-vis spectroscopy. However, when these samples were analyzed with transmission electron microscopy, radically different mechanisms in the loss of their original nanostructures were observed. Specifically, for the nanocube we observed that the corners of the cubes had become more rounded, whereas the aged nanoparticles formed large aggregates. Most interestingly, when the seawater samples were analyzed, the nanocubes showed a substantially higher stability in maintaining the nano length scale in comparison to nanoparticles overtime. Moreover, high-resolution transmission electron microscopy analysis allowed us to determine that Ag+ ions diffused away from both the edge and from the faces of the cube, whereas the nanoparticle rapidly aggregated under the harsh seawater conditions.
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Affiliation(s)
- Eric V Formo
- Georgia Electron Microscopy, University of Georgia , Athens, Georgia 30622, United States
| | - Caroline B Potterf
- Georgia Electron Microscopy, University of Georgia , Athens, Georgia 30622, United States
| | - Miaoxin Yang
- Department of Biomedical Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | - Raymond R Unocic
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Donovan N Leonard
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Michelle Pawel
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
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