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Tian Y, Ying C, Zhang L, Huang H, Song S, Mei R, Li J. Unveiling the inhibition of chlortetracycline photodegradation and the increase of toxicity when coexisting with silver nanoparticles. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:168443. [PMID: 37956846 DOI: 10.1016/j.scitotenv.2023.168443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/17/2023] [Accepted: 11/07/2023] [Indexed: 11/15/2023]
Abstract
Silver nanoparticles (AgNPs) and antibiotics inevitably co-exist in water environment. Nonetheless, little is known regarding the interactions between AgNPs and antibiotics or the effects of AgNPs on environmental behavior of antibiotics, particularly on sunlight-driven transformation. In the present work, we found that AgNPs obviously inhibit the photochemical decay of chlortetracycline (CTC), and CTC boosts the dissolution of AgNPs. With the help of electron paramagnetic resonance (EPR) and quenching experiment, we ascertained that these results originated from the competition between AgNPs against CTC for capturing 1O2 generated from CTC photosensitization. 1O2 reacting with CTC contributed mostly to CTC photodegradation, while 1O2 as well reacting with AgNPs leads to release of Ag+. When compared to reaction of 1O2 with CTC, 1O2 is prone to react with AgNPs, based on lower Gibbs free energy of AgNPs reacting with 1O2. Therefore, upon CTC co-existing with AgNPs, the release of Ag+ was accelerated and the photodegradation of CTC was inhibited obviously. Furthermore, the accelerated release of Ag+ significantly increased their toxicity toward E. coli cells under simulate sunlight irradiation. Overall, the findings demonstrate how AgNPs interact with CTC and how these interactions affect the environmental behaviors of CTC or AgNPs, allowing more accurate assessments of the risk to ecosystems posed by AgNPs coexisting with antibiotics.
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Affiliation(s)
- Yajun Tian
- College of Environment, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310014, China; Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing 100083, China
| | - Chuhan Ying
- College of Environment, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310014, China
| | - Liqiu Zhang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-remediation, Beijing Forestry University, Beijing 100083, China
| | - Huimin Huang
- Zhejiang Huanke Certification Center for Environment Co., Ltd., Hangzhou 310007, China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310014, China
| | - Rongwu Mei
- Eco-Environmental Science & Research Institute of Zhejiang Province, Hangzhou 310007, China
| | - Jun Li
- College of Environment, Zhejiang University of Technology, Chaowang Road 18, Hangzhou 310014, China.
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2
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Kennon BS, Niedermeyer WH. EVQ-218: Characterization of High-Energy Nanoparticles that Measure up to NIST Standards. ACS OMEGA 2024; 9:7891-7903. [PMID: 38405443 PMCID: PMC10882673 DOI: 10.1021/acsomega.3c07745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/12/2024] [Accepted: 01/19/2024] [Indexed: 02/27/2024]
Abstract
EVQ-218 is a high-energy produced nanoparticle (NP) with a method of manufacture that avoids chemical or biological synthesis. The patented single-step process generates stable, pure metal NPs directly into HPLC grade water. Laser ablation via the multiple cross laser system occurs at a rate that is in the region of dielectric breakdown, generating temperatures and pressures akin to those of diamond formation. The spherical particles from this method have an ultrastable shell structure that inhibits the hallmark ion emission that occurs in other nanosilver species. The resulting particle size distribution is so narrow that additional size refinement or stabilizing chemistries are not necessary. These properties make EVQ-218 an attractive clean and green alternative to traditional nanosilvers, particularly when factoring in shelf life, as EVQ-218 maintains (uniform) stability for years, while NIST standard materials degrade within a few weeks. EVQ-218 characterization and differentiation are timely as the rise of antimicrobial resistance has caused a surge of research on antimicrobial silver NPs. It has been widely established that the antimicrobial activity of nanosilver is due to ion emission. Unfortunately, metal ions can be quite toxic and prevent certain biomedical and consumer product applications. In an ever-changing regulatory landscape, there is increasing scrutiny to definitively characterize nanomaterials and assess their potential environmental/toxicological footprint. EVQ-218 was characterized alongside comparable NIST standard NPs, with particular interest in speciation and fate. Particle characterization studies reveal that EVQ-218 is nearly equivalent to NIST standard material with respect to particle morphology and uniformity. Dissolution and surface chemistry studies quickly differentiate EVQ-218 as the first stable, nonemissive, pure metal NP that is on par with NIST standards for ideal materials.
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Affiliation(s)
- Bretni S. Kennon
- EVO̅Q Nano, 1895 West 2100 South, Suite 100, Salt Lake City, Utah 84119, United States
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3
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Jahan I, Matpan Bekler F, Tunç A, Güven K. The Effects of Silver Nanoparticles (AgNPs) on Thermophilic Bacteria: Antibacterial, Morphological, Physiological and Biochemical Investigations. Microorganisms 2024; 12:402. [PMID: 38399806 PMCID: PMC10892981 DOI: 10.3390/microorganisms12020402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/19/2023] [Accepted: 02/15/2024] [Indexed: 02/25/2024] Open
Abstract
Since thermophilic microorganisms are valuable sources of thermostable enzymes, it is essential to recognize the potential toxicity of silver nanoparticles used in diverse industrial sectors. Thermophilic bacteria Geobacillus vulcani 2Cx, Bacillus licheniformis 3CA, Paenibacillus macerans 3CA1, Anoxybacillus ayderensis FMB1, and Bacillus paralicheniformis FMB2-1 were selected, and their MIC and MBC values were assessed by treatment with AgNPs in a range of 62.5-1500 μg mL-1. The growth inhibition curves showed that the G. vulcani 2Cx, and B. paralicheniformis FMB2-1 strains were more sensitive to AgNPs, demonstrating a reduction in population by 71.1% and 31.7% at 62.5 μg mL-1 and by 82.9% and 72.8% at 250 μg mL-1, respectively. TEM and FT-IR analysis revealed that AgNPs caused structural damage, cytoplasmic leakage, and disruption of cellular integrity. Furthermore, cell viability showed a significant decrease alongside an increase in superoxide radical (SOR; O2-) production. β-galactosidase biosynthesis decreased to 28.8% level at 500 μg mL-1 AgNPs for G. vulcani 2Cx, 32.2% at 250 μg mL-1 for A. ayderensis FMB1, and 38.8% only at 62.5 μg mL-1, but it was completely inhibited at 500 μg mL-1 for B. licheniformis 3CA. Moreover, B. paralicheniformis FMB2-1 showed a significant decrease to 11.2% at 125 μg mL-1. This study is the first to reveal the toxic effects of AgNPs on thermophilic bacteria.
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Affiliation(s)
- Israt Jahan
- Department of Health Care Services, Vocational School of Health Services, Mardin Artuklu University, 47100 Mardin, Türkiye;
| | - Fatma Matpan Bekler
- Department of Molecular Biology and Genetics, Faculty of Science, Dicle University, 21280 Diyarbakir, Türkiye;
| | - Ahmed Tunç
- Department of Interdisciplinary Nanotechnology, Graduate School of Natural and Applied Sciences, Dicle University, 21280 Diyarbakir, Türkiye;
| | - Kemal Güven
- Department of Molecular Biology and Genetics, Faculty of Science, Dicle University, 21280 Diyarbakir, Türkiye;
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Samal D, Khandayataray P, Sravani M, Murthy MK. Silver nanoparticle ecotoxicity and phytoremediation: a critical review of current research and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:8400-8428. [PMID: 38182947 DOI: 10.1007/s11356-023-31669-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Silver nanoparticles (AgNPs) are widely used in various industries, including textiles, electronics, and biomedical fields, due to their unique optical, electronic, and antimicrobial properties. However, the extensive use of AgNPs has raised concerns about their potential ecotoxicity and adverse effects on the environment. AgNPs can enter the environment through different pathways, such as wastewater, surface runoff, and soil application and can interact with living organisms through adsorption, ingestion, and accumulation, causing toxicity and harm. The small size, high surface area-to-volume ratio, and ability to generate reactive oxygen species (ROS) make AgNPs particularly toxic. Various bioremediation strategies, such as phytoremediation, have been proposed to mitigate the toxic effects of AgNPs and minimize their impact on the environment. Further research is needed to improve these strategies and ensure their safety and efficacy in different environmental settings.
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Affiliation(s)
- Dibyaranjan Samal
- Department of Biotechnology, Sri Satya Sai University of Technical and Medical Sciences, Sehore, Bhopal, Madhya Pradesh, India
| | - Pratima Khandayataray
- Department of Biotechnology, Academy of Management and Information Technology, Utkal University, Bhubaneswar, 752057, Odisha, India
| | - Meesala Sravani
- Department of Computer Science and Engineering, GMR Institute of Technology, Rajam, 532127, India
| | - Meesala Krishna Murthy
- Department of Allied Health Sciences, Chitkara School of Health Sciences, Chitkara University, Punjab, 140401, India.
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5
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Su Y, Wang B, Tong X, Peng S, Liu S, Xing B, Ji R. Steam disinfection enhances bioaccessibility of metallic nanoparticles in nano-enabled silicone-rubber baby bottle teats, pacifiers, and teethers. J Environ Sci (China) 2024; 136:161-171. [PMID: 37923427 DOI: 10.1016/j.jes.2022.08.001] [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: 05/06/2022] [Revised: 08/01/2022] [Accepted: 08/01/2022] [Indexed: 11/07/2023]
Abstract
Nano-enabled silicone-rubber articles for feeding or chewing could be a source of metallic nanoparticles (NPs) directly exposed to infants and young children. However, the impact of steam disinfection on release of NPs and the related potential risks to children's health are unknown. Here, we investigated contents and form of Ag and Zn in 57 nano-enabled silicone-rubber baby bottle teats, pacifiers, and teethers of seven countries and examined the impacts of steam disinfection on in vitro bioaccessibility (IVBA) of Ag and Zn in the articles. Nearly 89% articles had a mixture of Ag- and Zn-containing NPs and the teethers had relatively high Ag and Zn contents (up to 501 and 254 µg/g, respectively). Steam disinfection caused rubber decomposition into micro(nano)plastics (0.54-15.7 µm) and NP release from the interior of bulk rubber and micro-sized plastics, thus enhancing the IVBA of Ag and Zn by up to 5.5 times. The findings provide insights into mechanisms for NP release by steam disinfection. Though oral exposure risk assessment suggested low health concerns on individual metal release, our study points out the need to assess the potential health risks of child co-exposure to metallic NPs and micro(nano)plastics.
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Affiliation(s)
- Yu Su
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Bin Wang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China; School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xin Tong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China
| | - Shuchuan Peng
- School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Baoshan Xing
- Stockbridge School of Agriculture, University of Massachusetts, Amherst, MA 01003, USA
| | - Rong Ji
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing 210023, China.
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6
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Sun Y, Bai S, Wang X, Ren N, You S. Prospective Life Cycle Assessment for the Electrochemical Oxidation Wastewater Treatment Process: From Laboratory to Industrial Scale. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:1456-1466. [PMID: 36607808 DOI: 10.1021/acs.est.2c04185] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Electrochemical oxidation (EO) is a promising technology for water purification, but indirect environmental burdens may arise in association with consumption of materials and energy during electrode preparation and process operation. This study evaluated the life cycle environmental impacts of emerging EO technology from laboratory scale to industrial scale using prospective life cycle assessment (LCA) on a quantitative basis. Environmental impacts of EO technology were assessed at laboratory scale by comparing three representative anode materials (SnO2, PbO2, and boron-doped diamond) and other two typical processes (adsorption and Fenton method), which verified the competitiveness of the EO process and identified the key factors to environmental hotspots. Thereafter, LCA of scale-up EO was performed to offer guidance for practical application, and the life cycle inventory was compiled upon thermodynamic and kinetic simulations, empirical calculation rules, and similar technical information. Results demonstrated EO to be effective for destructing recalcitrant organic pollutants, but visible direct benefits might be outweighed by increased indirect environmental burdens associated with the preparation of anode materials, use of electrolytes, and energy consumption during the operation stage at both laboratory scale and larger scale. This necessitated attention to overall life cycle profiles by taking into account reactor design, anode materials, electrolyte and flow pattern, and decentralized location with a large share of renewable power station and rigorous contamination control strategies for wastewater treatment plants.
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Affiliation(s)
- Ye Sun
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Shunwen Bai
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Xiuheng Wang
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Nanqi Ren
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
| | - Shijie You
- State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, P. R. China
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7
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Antifungal Activity of Biosynthesized Silver Nanoparticles (AgNPs) against Aspergilli Causing Aspergillosis: Ultrastructure Study. J Funct Biomater 2022; 13:jfb13040242. [PMID: 36412883 PMCID: PMC9680418 DOI: 10.3390/jfb13040242] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Currently, nanoparticles and nanomaterials are widely used for biomedical applications. In the present study, silver nanoparticles (AgNPs) were successfully biosynthesized using a cell-free extract (CFE) of Bacillus thuringiensis MAE 6 through a green and ecofriendly method. The size of the biosynthesized AgNPs was 32.7 nm, and their crystalline nature was confirmed by XRD, according to characterization results. A surface plasmon resonance spectrum of AgNPs was obtained at 420 nm. Nanoparticles were further characterized using DLS and FTIR analyses, which provided information on their size, stability, and functional groups. AgNPs revealed less cytotoxicity against normal Vero cell line [IC50 = 155 μg/mL]. Moreover, the biosynthesized AgNPs exhibited promising antifungal activity against four most common Aspergillus, including Aspergillus niger, A. terreus, A. flavus, and A. fumigatus at concentrations of 500 μg/mL where inhibition zones were 16, 20, 26, and 19 mm, respectively. In addition, MICs of AgNPs against A. niger, A. terreus, A. flavus, and A. fumigatus were 125, 62.5, 15.62, and 62.5 μg/mL, respectively. Furthermore, the ultrastructural study confirmed the antifungal effect of AgNPs, where the cell wall's integrity and homogeneity were lost; the cell membrane had separated from the cell wall and had intruded into the cytoplasm. In conclusion, the biosynthesized AgNPs using a CFE of B. thuringiensis can be used as a promising antifungal agent against Aspergillus species causing Aspergillosis.
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8
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Zhao X, You F. Life Cycle Assessment of Microplastics Reveals Their Greater Environmental Hazards than Mismanaged Polymer Waste Losses. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2022; 56:11780-11797. [PMID: 35920730 DOI: 10.1021/acs.est.2c01549] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Concern about microplastic pollution sourced from mismanaged plastic waste losses to drainage basins is growing but lacks relevant environmental impact analyses. Here, we reveal and compare the environmental hazards of aquatic macro- and microplastic debris through a holistic life cycle assessment approach. Compared to polymeric debris, microplastics, especially smaller than 10 μm, exhibit higher freshwater ecotoxicity enhanced by watersheds' high average depth and low water temperature. High microplastic concentration within drainage basins can also cause air pollution regarding particulate matter formation and photochemical ozone formation. The environmental drawbacks of plastic mismanagement are then demonstrated by showing that the microplastic formulation and removal in drinking water treatment plants can pose more than 7.44% of the total ecotoxicity effect from plastic wastes' (microplastics') whole life cycle. Specifically, these two life cycle stages can also cause more than 50% of the plastic wastes' life cycle ecotoxicity effect related to organic chemical emissions. Therefore, reducing environmentally harmful plastic losses through advanced plastic waste recycling, collection, and effective microplastic removal technologies needs future investigation.
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Affiliation(s)
- Xiang Zhao
- Systems Engineering, College of Engineering, Cornell University, Ithaca, New York 14853, United States
| | - Fengqi You
- Systems Engineering, College of Engineering, Cornell University, Ithaca, New York 14853, United States
- Robert Frederick Smith School of Chemical and Biomolecular Engineering, Cornell University, Ithaca, New York 14853, United States
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9
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Zhang Q, Hu Y, Masterson CM, Jang W, Xiao Z, Bohloul A, Garcia-Rojas D, Puppala HL, Bennett G, Colvin VL. When Function is Biological: Discerning How Silver Nanoparticle Structure Dictates Antimicrobial Activity. iScience 2022; 25:104475. [PMID: 35789852 PMCID: PMC9249613 DOI: 10.1016/j.isci.2022.104475] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/05/2022] [Accepted: 05/20/2022] [Indexed: 11/18/2022] Open
Affiliation(s)
- Qingbo Zhang
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Yue Hu
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Caitlin M. Masterson
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Wonhee Jang
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | - Zhen Xiao
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
| | - Arash Bohloul
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | | | - Hema L. Puppala
- Department of Chemistry, Rice University, Houston, TX 77005, USA
| | - George Bennett
- Department of Biosciences, Rice University, Houston, TX 77005, USA
| | - Vicki L. Colvin
- Department of Chemistry and School of Engineering, Brown University, Providence RI 02912, USA
- Corresponding author
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10
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Tripathi N, Goshisht MK. Recent Advances and Mechanistic Insights into Antibacterial Activity, Antibiofilm Activity, and Cytotoxicity of Silver Nanoparticles. ACS APPLIED BIO MATERIALS 2022; 5:1391-1463. [PMID: 35358388 DOI: 10.1021/acsabm.2c00014] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The substantial increase in multidrug-resistant (MDR) pathogenic bacteria is a major threat to global health. Recently, the Centers for Disease Control and Prevention reported possibilities of greater deaths due to bacterial infections than cancer. Nanomaterials, especially small-sized (size ≤10 nm) silver nanoparticles (AgNPs), can be employed to combat these deadly bacterial diseases. However, high reactivity, instability, susceptibility to fast oxidation, and cytotoxicity remain crucial shortcomings for their uptake and clinical application. In this review, we discuss various AgNPs-based approaches to eradicate bacterial infections and provide comprehensive mechanistic insights and recent advances in antibacterial activity, antibiofilm activity, and cytotoxicity (both in vitro and in vivo) of AgNPs. The mechanistic of antimicrobial activity involves four steps: (i) adhesion of AgNPs to cell wall/membrane and its disruption; (ii) intracellular penetration and damage; (iii) oxidative stress; and (iv) modulation of signal transduction pathways. Numerous factors affecting the bactericidal activity of AgNPs such as shape, size, crystallinity, pH, and surface coating/charge have also been described in detail. The review also sheds light on antimicrobial photodynamic therapy and the role of AgNPs versus Ag+ ions release in bactericidal activities. In addition, different methods of synthesis of AgNPs have been discussed in brief.
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Affiliation(s)
- Neetu Tripathi
- Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
| | - Manoj Kumar Goshisht
- Department of Chemistry, Government Naveen College Tokapal, Bastar, Chhattisgarh 494442, India
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Corsi I, Desimone MF, Cazenave J. Building the Bridge From Aquatic Nanotoxicology to Safety by Design Silver Nanoparticles. Front Bioeng Biotechnol 2022; 10:836742. [PMID: 35350188 PMCID: PMC8957934 DOI: 10.3389/fbioe.2022.836742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 02/14/2022] [Indexed: 01/13/2023] Open
Abstract
Nanotechnologies have rapidly grown, and they are considered the new industrial revolution. However, the augmented production and wide applications of engineered nanomaterials (ENMs) and nanoparticles (NPs) inevitably lead to environmental exposure with consequences on human and environmental health. Engineered nanomaterial and nanoparticle (ENM/P) effects on humans and the environment are complex and largely depend on the interplay between their peculiar properties such as size, shape, coating, surface charge, and degree of agglomeration or aggregation and those of the receiving media/body. These rebounds on ENM/P safety and newly developed concepts such as the safety by design are gaining importance in the field of sustainable nanotechnologies. This article aims to review the critical characteristics of the ENM/Ps that need to be addressed in the safe by design process to develop ENM/Ps with the ablility to reduce/minimize any potential toxicological risks for living beings associated with their exposure. Specifically, we focused on silver nanoparticles (AgNPs) due to an increasing number of nanoproducts containing AgNPs, as well as an increasing knowledge about these nanomaterials (NMs) and their effects. We review the ecotoxicological effects documented on freshwater and marine species that demonstrate the importance of the relationship between the ENM/P design and their biological outcomes in terms of environmental safety.
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Affiliation(s)
- Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, Siena, Italy
| | - Martin Federico Desimone
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Buenos Aires, Argentina
| | - Jimena Cazenave
- Laboratorio de Ictiología, Instituto Nacional de Limnología (INALI), CONICET, Universidad Nacional del Litoral, Santa Fe, Argentina
- *Correspondence: Jimena Cazenave,
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12
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Burketová L, Martinec J, Siegel J, Macůrková A, Maryška L, Valentová O. Noble metal nanoparticles in agriculture: impacts on plants, associated microorganisms, and biotechnological practices. Biotechnol Adv 2022; 58:107929. [DOI: 10.1016/j.biotechadv.2022.107929] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 02/07/2023]
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13
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Carboni A, Slomberg DL, Nassar M, Santaella C, Masion A, Rose J, Auffan M. Aquatic Mesocosm Strategies for the Environmental Fate and Risk Assessment of Engineered Nanomaterials. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:16270-16282. [PMID: 34854667 DOI: 10.1021/acs.est.1c02221] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
In the past decade, mesocosms have emerged as a useful tool for the environmental study of engineered nanomaterials (ENMs) as they can mimic the relevant exposure scenario of contamination. Herein, we analyzed the scientific outcomes of aquatic mesocosm experiments, with regard to their designs, the ENMs tested, and the end points investigated. Several mesocosm designs were consistently applied in the past decade to virtually mimic various contamination scenarios with regard to ecosystem setting as well as ENMs class, dose, and dosing. Statistical analyses were carried out with the literature data to identify the main parameters driving ENM distribution in the mesocosms and the potential risk posed to benthic and planktonic communities as well as global ecosystem responses. These analyses showed that at the end of the exposure, mesocosm size (water volume), experiment duration, and location indoor/outdoor had major roles in defining the ENMs/metal partitioning. Moreover, a higher exposure of the benthic communities is often observed but did not necessarily translate to a higher risk due to the lower hazard posed by transformed ENMs in the sediments (e.g., aggregated, sulfidized). However, planktonic organisms were generally exposed to lower concentrations of potentially more reactive and toxic ENM species. Hence, mesocosms can be complementary tools to existing standard operational procedures for regulatory purposes and environmental fate and risk assessment of ENMs. To date, the research was markedly unbalanced toward the investigation of metal-based ENMs compared to metalloid- and carbon-based ENMs but also nanoenabled products. Future studies are expected to fill this gap, with special regard to high production volume and potentially hazardous ENMs. Finally, to take full advantage of mesocosms, future studies must be carefully planned to incorporate interdisciplinary approaches and ensure that the large data sets produced are fully exploited.
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Affiliation(s)
- Andrea Carboni
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Danielle L Slomberg
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Mohammad Nassar
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Catherine Santaella
- Laboratory of Microbial Ecology of the Rhizosphere, Aix Marseille Univ, CEA, CNRS, BIAM, LEMiRE, ECCOREV FR 3098, F-13108 Saint Paul-Lez-Durance, France
| | - Armand Masion
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
| | - Jerome Rose
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
- Civil and Environmental Engineering Department, Duke University, Durham, North Carolina 27707, United States
| | - Melanie Auffan
- CNRS, Aix-Marseille Univ., IRD, INRAE, CEREGE, 13545 Aix-en-Provence, France
- Civil and Environmental Engineering Department, Duke University, Durham, North Carolina 27707, United States
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14
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Fu H, Gray KA. The key to maximizing the benefits of antimicrobial and self-cleaning coatings is to fully determine their risks. Curr Opin Chem Eng 2021; 34:100761. [PMID: 36569284 PMCID: PMC9766878 DOI: 10.1016/j.coche.2021.100761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Antimicrobial and self-cleaning nanomaterial coatings have attracted significant research attention in recent years due to the growing global threat of infectious diseases, the emergence of new diseases such as COVID-19, and increases in healthcare-associated infections. Although there are many reportedly successful coating technologies, the evaluation of antimicrobial performance is primarily conducted under simple laboratory conditions without adequate testing under real environmental conditions that reflect practical use and more importantly, reveal unintended outcomes. Furthermore, there is no standardized evaluation methodology to assess the long-term stability or the consequences associated with coating deterioration, such as the ecological impacts of nanomaterials or the proliferation of antibiotic-resistant bacteria/genes. In this review, we propose a precautionary framework that integrates a rigorous assessment of potential risks and limitations of nanomaterial coatings for antimicrobial applications as intrinsic to a comprehensive evaluation of their benefits. In addition, we summarize some emerging coating technologies as promising strategies to minimize unintended risks and enhance performance.
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15
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Fu QL, Zhong CJ, Qing T, Du ZY, Li CC, Fei JJ, Peijnenburg WJGM. Effects of extracellular polymeric substances on silver nanoparticle bioaccumulation and toxicity to Triticum aestivum L. CHEMOSPHERE 2021; 280:130863. [PMID: 34162100 DOI: 10.1016/j.chemosphere.2021.130863] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/05/2021] [Accepted: 05/10/2021] [Indexed: 06/13/2023]
Abstract
The potential effects of extracellular polymeric substances (EPS) on the behavior and toxicity of silver nanoparticle (Ag-NPs) and silver sulfide nanoparticle (Ag2S-NPs) remains ambiguous. The interaction of EPS from Bacillus subtilis with Ag2S-NPs, metallic Ag-NPs, or ionic Ag, and the associated plant safety had been examined in this study. The biological impacts of Ag-NPs and Ag2S-NPs were Ag form-dependent and highly influenced by microbial EPS. Compared with metallic Ag-NPs, Ag2S-NPs exert inert biological impacts, as revealed by 3.44 times lower Ag bioaccumulation in wheat (Triticum aestivum L.) seedlings and nearly reduce plant biomass when wheat was subjected to 1.0 mg-Ag L-1 of Ag-NPs and Ag2S-NPs with the transfer factors of 151.56-930.87 vs. 12.52-131.81, respectively. These observations were coincident with the low dissolved Ag ([Ag]diss) in the Ag2S-NPs treatment than the Ag-NPs treatment (114.0 vs. 0.0791, μg L-1). Compared with the enhanced toxicity of Ag2S-NPs to wheat, Bacillus subtilis EPS significantly alleviate the phytotoxicity of Ag-NPs, as revealed by the relative root elongation (7.15-45.40% decrease vs. 2.39-11.75% increase), and malondialdehyde (1.47-83.22% increase vs. 8.57-25.25% decrease) and H2O2 (11.27-71.78% increase vs. 5.16-36.67% decrease) contents. These constrasting plant responses of B. subtilis EPS are mainly caused by their complexation property with toxic Ag+ and nutrient elements for wheat stressed by Ag-NPs and Ag2S-NPs, respectively. Our findings highlight the importance of rhizospheric EPS in affecting the biogeochemistry and ecotoxicity of metal nanoparticles including Ag-NPs and Ag2S-NPs in agricultural systems.
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Affiliation(s)
- Qing-Long Fu
- School of Environmental Studies, China University of Geosciences, Wuhan, 430074, PR China.
| | - Chun-Jie Zhong
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China
| | - Ting Qing
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China
| | - Zi-Yan Du
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China
| | - Cheng-Cheng- Li
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, PR China; National Innovation Institute of Defense Technology, Chinese Academy of Military Sciences, Beijing, 100071, PR China; Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, PR China.
| | - Jun-Jie Fei
- Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, PR China
| | - Willie J G M Peijnenburg
- Institute of Environmental Sciences (CML), Leiden University, P.O. Box 9518, 2300, RA, Leiden, the Netherlands; National Institute of Public Health and the Environment (RIVM), P.O. Box 1, Bilthoven, the Netherlands
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16
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Ahamed A, Ge L, Zhao K, Veksha A, Bobacka J, Lisak G. Environmental footprint of voltammetric sensors based on screen-printed electrodes: An assessment towards "green" sensor manufacturing. CHEMOSPHERE 2021; 278:130462. [PMID: 33845436 DOI: 10.1016/j.chemosphere.2021.130462] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 06/12/2023]
Abstract
Voltammetric sensors based on screen-printed electrodes (SPEs) await diverse applications in environmental monitoring, food, agricultural and biomedical analysis. However, due to the single-use and disposable characteristics of SPEs and the scale of measurements performed, their environmental impacts should be considered. A life cycle assessment was conducted to evaluate the environmental footprint of SPEs manufactured using various substrate materials (SMs: cotton textile, HDPE plastic, Kraft paper, graphic paper, glass, and ceramic) and electrode materials (EMs: platinum, gold, silver, copper, carbon black, and carbon nanotubes (CNTs)). The greatest environmental impact was observed when cotton textile was used as SM. HDPE plastic demonstrated the least impact (13 out of 19 categories), followed by ceramic, glass and paper. However, considering the end-of-life scenarios and release of microplastics into the environment, ceramic, glass or paper could be the most suitable options for SMs. Amongst the EMs, the replacement of metals, especially noble metals, by carbon-based EMs greatly reduces the environmental footprint of SPEs. Compared with other materials, carbon black was the least impactful on the environment. On the other hand, copper and waste-derived CNTs (WCNTs) showed low impacts except for terrestrial ecotoxicity and human toxicity (non-cancer) potentials. In comparison to commercial CNTs (CCNTs), WCNTs demonstrated lower environmental footprint and comparable voltammetric performance in heavy metal detections, justifying the substitution of CCNTs with WCNTs in commercial applications. In conclusion, a combination of carbon black or WCNTs EMs with ceramic, glass or paper SMs represents the most environmentally friendly SPE configurations for voltammetric sensor arrangement.
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Affiliation(s)
- Ashiq Ahamed
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore; Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
| | - Liya Ge
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Ke Zhao
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Andrei Veksha
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore
| | - Johan Bobacka
- Laboratory of Molecular Science and Engineering, Johan Gadolin Process Chemistry Centre, Åbo Akademi University, FI-20500, Turku/Åbo, Finland
| | - Grzegorz Lisak
- Residues and Resource Reclamation Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 1 Cleantech Loop, CleanTech One, Singapore, 637141, Singapore; School of Civil and Environmental Engineering, Nanyang Technological University, Singapore, 639798, Singapore.
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17
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Eco-Interactions of Engineered Nanomaterials in the Marine Environment: Towards an Eco-Design Framework. NANOMATERIALS 2021; 11:nano11081903. [PMID: 34443734 PMCID: PMC8398366 DOI: 10.3390/nano11081903] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/14/2021] [Accepted: 07/22/2021] [Indexed: 12/23/2022]
Abstract
Marine nano-ecotoxicology has emerged with the purpose to assess the environmental risks associated with engineered nanomaterials (ENMs) among contaminants of emerging concerns entering the marine environment. ENMs’ massive production and integration in everyday life applications, associated with their peculiar physical chemical features, including high biological reactivity, have imposed a pressing need to shed light on risk for humans and the environment. Environmental safety assessment, known as ecosafety, has thus become mandatory with the perspective to develop a more holistic exposure scenario and understand biological effects. Here, we review the current knowledge on behavior and impact of ENMs which end up in the marine environment. A focus on titanium dioxide (n-TiO2) and silver nanoparticles (AgNPs), among metal-based ENMs massively used in commercial products, and polymeric NPs as polystyrene (PS), largely adopted as proxy for nanoplastics, is made. ENMs eco-interactions with chemical molecules including (bio)natural ones and anthropogenic pollutants, forming eco- and bio-coronas and link with their uptake and toxicity in marine organisms are discussed. An ecologically based design strategy (eco-design) is proposed to support the development of new ENMs, including those for environmental applications (e.g., nanoremediation), by balancing their effectiveness with no associated risk for marine organisms and humans.
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18
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Zhao Z, Li G, Liu QS, Liu W, Qu G, Hu L, Long Y, Cai Z, Zhao X, Jiang G. Identification and interaction mechanism of protein corona on silver nanoparticles with different sizes and the cellular responses. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125582. [PMID: 34030421 DOI: 10.1016/j.jhazmat.2021.125582] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 03/02/2021] [Accepted: 03/02/2021] [Indexed: 06/12/2023]
Abstract
With the potential biomedical applications of nanomaterials such as silver nanoparticles (SNPs), nanotoxicity concerns are growing, and the importance of NP and protein interactions is far from being addressed enough. Here, we identified the major binding protein on SNPs in blood as human serum albumin (HSA) using polyacrylamide gel electrophoresis and liquid chromatography-mass spectrometry/mass spectrometry. By comparing with the previous methods, we emphasized surface area concentration as a new dose metric to address the importance of NP curvature. SNPs interacted with cysteine and cystine, disrupting the secondary structure and conformation of HSA, and this tendency became stronger on small SNPs than large ones. The protein corona significantly alleviated the toxicity and decreased SNPs' internalization in a particle size-dependent manner, where more significant inhibition effects occurred on larger particles at the same area concentration. These findings may shed light on nanotoxicity and also the design of safe nanomaterials by a comprehensive preconsideration of the metrological method.
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Affiliation(s)
- Zongshan Zhao
- College of Environmental Science and Engineering, Qingdao University, Qingdao 266071, PR China
| | - Guoliang Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Qian S Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Wei Liu
- Institute of Chemical Safety, Chinese Academy of Inspection and Quarantine, Beijing 100124, PR China
| | - Guangbo Qu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Ligang Hu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
| | - Yanmin Long
- Hubei Key Laboratory of Environmental and Health Effects of Persistent Toxic Substances, Institute of Environment and Health, Jianghan University, Wuhan 430056, PR China
| | - Zongwei Cai
- State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
| | - Xingchen Zhao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China; State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Hong Kong, China.
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, PR China
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19
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Tseng KH, Chung MY, Chiu JL, Tseng CH, Liu CY. A Study of Nanosilver Colloid Prepared by Electrical Spark Discharge Method and Its Antifungal Control Benefits. MICROMACHINES 2021; 12:503. [PMID: 33946357 PMCID: PMC8145165 DOI: 10.3390/mi12050503] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Revised: 04/28/2021] [Accepted: 04/29/2021] [Indexed: 01/30/2023]
Abstract
This is a study of an antimicrobial test, including yeast, Aspergillus Niger, and Aspergillus Flavus, on a nanosilver colloid solution. The antibiosis is compared with a standard silver ion solution at the same concentration as in the experimental process. This study proved that the nanosilver colloid prepared by the electrical spark discharge method (ESDM) is free of any chemical additives, has a microbial control effect, and that the effect is much better than the Ag+ standard solution at the same concentration. 3M Count Plate (YM) is used to test and observe the colony counts. The microbial control test for yeast, Aspergillus Niger, and Aspergillus Flavus is implemented in the nanosilver colloid. In addition to Aspergillus flavus, an Ag+ concentration of 16 ppm is enough to inhibit the growth of the samples. At the same concentration, the nanosilver colloid has a much better microbial control effect than the Ag+ standard solution, which may be because the nanoparticle can release Ag+ continuously, so the solution using the ESDM has a more significant microbial control effect.
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Affiliation(s)
- Kuo-Hsiung Tseng
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (M.-Y.C.); (J.-L.C.)
| | - Meng-Yun Chung
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (M.-Y.C.); (J.-L.C.)
| | - Juei-Long Chiu
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (M.-Y.C.); (J.-L.C.)
- Business Planning Development Department, Panasonic Eco Solution Sales Taiwan Co., Ltd., Taipei 10608, Taiwan
| | - Chao-Heng Tseng
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan; (C.-H.T.); (C.-Y.L.)
| | - Chao-Yun Liu
- Institute of Environmental Engineering and Management, National Taipei University of Technology, Taipei 10608, Taiwan; (C.-H.T.); (C.-Y.L.)
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20
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Hao Z, Li F, Liu R, Zhou X, Mu Y, Sharma VK, Liu J, Jiang G. Reduction of Ionic Silver by Sulfur Dioxide as a Source of Silver Nanoparticles in the Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:5569-5578. [PMID: 33683864 DOI: 10.1021/acs.est.0c08790] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The natural formation of silver nanoparticles (AgNPs) via biotic and abiotic pathways in water and soil media contributes to the biogeochemical cycle of silver metal in the environment. However, the formation of AgNPs in the atmosphere has not been reported. Here, we describe a previously unreported source of AgNPs via the reduction of Ag(I) by SO2 in the atmosphere, especially in moist environments, using multipronged advanced analytical and surface techniques. The rapid reduction of Ag(I) in the atmospheric aqueous phase was mainly caused by the sulfite ions formed from the dissolution of SO2 in water, which contributed to the formation of AgNPs and was consistent with the Finke-Watzky model with a major contribution of the reduction-nucleation process. Sunlight irradiation excited SO2 to form triplet SO2, which reacted with water to form H2SO3 and greatly enhanced Ag(I) reduction and AgNP formation. Different pH values affected the speciation of Ag(I) and S(IV), which were jointly involved in the reduction of Ag(I). The formation of AgNPs was also observed in the atmospheric gas phase via direct reduction of Ag(I) by SO2(gas), which occurred even in 50 ppbv SO2(gas). The natural occurrence of AgNPs in the atmosphere may also be involved in silver corrosion, AgNP transformation and regeneration, detoxification of gaseous pollutants, and the sulfur cycle in the environment.
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Affiliation(s)
- Zhineng Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Fasong Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- College of Resources and Environment, Anqing Normal University, Anqing, Anhui 246011, China
| | - Rui Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Xiaoxia Zhou
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Yujing Mu
- Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Virender K Sharma
- Department of Environment and Occupational Health, School of Public Health, Texas A&M University, 212 Adriance Lab Road, 1266 TAMU, College Station, Texas 77843, United States
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
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21
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Jose V, Raphel L, Aiswariya KS, Mathew P. Green synthesis of silver nanoparticles using Annona squamosa L. seed extract: characterization, photocatalytic and biological activity assay. Bioprocess Biosyst Eng 2021; 44:1819-1829. [PMID: 33822248 DOI: 10.1007/s00449-021-02562-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 03/23/2021] [Indexed: 12/22/2022]
Abstract
The aqueous seed extract of Annona squamosa L. was used as a reducing and stabilizing agent for the synthesis of silver nanoparticles (AgNPs). The formation of AgNPs in aqueous silver nitrate solution after the addition of the extract was indicated by a colour change from pale yellow to dark brown corresponding to a λmax at 430 nm. The phytochemicals in the extract, responsible for efficient capping and stabilization of the nanoparticles, were identified by FTIR. Powder XRD pattern demonstrated the polycrystalline nature of the AgNPs. TEM image confirmed that AgNPs were spherical in shape and the average particle size was found to be 22 nm. Further, the nanoparticles exhibited good catalytic activity towards the degradation of coomassie brilliant blue dye and demonstrated significant antibacterial activity. Their larvicidal activity against mosquito larvae showed a LC50 value 22.44 μg/mL against III instars. In addition, AgNPs positively influenced the germination of chickpea seeds.
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Affiliation(s)
- Vimala Jose
- Department of Botany, Centre for Biotechnology, St. Thomas College (Autonomous), University of Calicut, Thrissur, Kerala, 680001, India
| | - Lidiya Raphel
- Department of Botany, Centre for Biotechnology, St. Thomas College (Autonomous), University of Calicut, Thrissur, Kerala, 680001, India
| | - K S Aiswariya
- Department of Botany, Centre for Biotechnology, St. Thomas College (Autonomous), University of Calicut, Thrissur, Kerala, 680001, India
| | - Paulson Mathew
- Department of Chemistry, Centre for Sustainability Science, St. Thomas College (Autonomous), University of Calicut, Thrissur, Kerala, 680001, India.
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22
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Temizel-Sekeryan S, Hicks AL. Cradle-to-grave environmental impact assessment of silver enabled t-shirts: Do nano-specific impacts exceed non nano-specific emissions? NANOIMPACT 2021; 22:100319. [PMID: 35559976 DOI: 10.1016/j.impact.2021.100319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 04/16/2021] [Accepted: 04/21/2021] [Indexed: 06/15/2023]
Abstract
Consumption of silver nanoparticles (nAg) is increasing due to their use in various industries. A comprehensive analysis is needed to elucidate the potential environmental and human health benefits and costs of the silver-enabled consumer products. For this purpose, four commercially available silver/nanosilver enabled polyester textiles with different initial silver/nanosilver loadings (1.07-4030 μg Ag/g textile) are included in the current research and cradle-to-grave life cycle assessments (LCA) are conducted to identify hotspots associated with production and use of these products throughout their lifetimes (100 cycles). Both non nano-specific and nano-specific impacts are calculated using nano-specific ecotoxicity characterization factors for nAg, instead of the commonly utilized ionic silver (Ag+) surrogate. Additionally, four different laundering scenarios were modeled to analyze the impacts resulting from using conventional and high efficiency machines. In the majority of environmental impact categories, either polyester textile manufacturing (regardless of Ag/nAg enabling) or laundering were identified as hotspots. Non nano-specific ecotoxicity impacts ranged from 1.58 × 101-2.91 × 101 CTUe/textile (CTUe: comparative toxic units for ecosystems) and nano-specific ecotoxicity impacts ranged from 2.01 × 10-4-3.10 × 10-3 CTUe/textile for the lowest and the highest Ag/nAg containing textiles, respectively. It is also found that unless the initial silver loading per textile is significantly high (in this case 4030 μg Ag/g textile comparing to the lowest load of 1.07 μg Ag/g textile), ecotoxicity and human health impacts of released silver species would be lower than ecotoxicity and human health impacts resulting from raw materials acquisition and manufacturing of the antibacterial textiles.
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Affiliation(s)
- Sila Temizel-Sekeryan
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Andrea L Hicks
- Department of Civil and Environmental Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA.
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23
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Videira-Quintela D, Martin O, Montalvo G. Recent advances in polymer-metallic composites for food packaging applications. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.020] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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24
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Guo B, Alivio TEG, Fleer NA, Feng M, Li Y, Banerjee S, Sharma VK. Elucidating the Role of Dissolved Organic Matter and Sunlight in Mediating the Formation of Ag-Au Bimetallic Alloy Nanoparticles in the Aquatic Environment. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2021; 55:1710-1720. [PMID: 33426890 DOI: 10.1021/acs.est.0c06351] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Elucidating the interactions between metal ions and dissolved organic matter and deciphering mechanisms for their mineralization in the aquatic environment are central to understanding the speciation, transport, and toxicity of nanoparticles (NPs). Herein, we examine the interactions between Ag+ and Au3+ ions in mixed solutions (χAg = 0.2, 0.5, and 0.8) in the presence of humic acids (HAs) under simulated sunlight; these conditions result in the formation of bimetallic Ag-Au NPs. A key distinction is that the obtained alloy NPs are compositionally and morphologically rather different from NPs obtained from thermally activated dark processes. Photoillumination triggers a distinctive plasmon-mediated process for HA-assisted reductive mineralization of ions to bimetallic alloy NPs which is not observed in its dark thermal reduction counterpart. The initial nucleation of bimetallic NPs is dominated by differences in the cohesive energies of Ag and Au crystal lattices, whereas the growth mechanisms are governed by the strongly preferred incorporation of Ag ions, which stems from their greater photoreactivity. The bimetallic NPs crystallize in shapes governed by the countervailing influence of minimizing free energy through the adoption of Wulff constructions and the energetic penalties associated with twin faults. As such, assessments of the stability and the potential toxic effects of bimetallic NPs arising from their possible existence in aquatic environments will depend sensitively on the origins of their formation.
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Affiliation(s)
- Binglin Guo
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station, Texas 77843-8371, United States
| | - Theodore E G Alivio
- Department of Chemistry & Physical Sciences, Nicholls State University, Thibodaux, Louisiana 70301-6701, United States
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3012, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Nathan A Fleer
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3012, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Mingbao Feng
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station, Texas 77843-8371, United States
| | - Ying Li
- J. Mike Walker '66 Department of Mechanical Engineering, Texas A&M University, College Station, Texas 77843-3127, United States
| | - Sarbajit Banerjee
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3012, United States
- Department of Materials Science and Engineering, Texas A&M University, College Station, Texas 77843-3003, United States
| | - Virender K Sharma
- Department of Environmental and Occupational Health, School of Public Health, Texas A&M University, College Station, Texas 77843-8371, United States
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25
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Li Z, Zhang Y, Huang D, Huang L, Zhang H, Li N, Wang M. Through quorum sensing, Pseudomonas aeruginosa resists noble metal-based nanomaterials toxicity. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116138. [PMID: 33310491 DOI: 10.1016/j.envpol.2020.116138] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 11/15/2020] [Accepted: 11/20/2020] [Indexed: 06/12/2023]
Abstract
Noble metal-based nanomaterials (NMNs), such as platinum nanoparticles (Pt@NPs) and palladium nanoparticles (Pd@NPs), are increasingly being used as antibacterial agents. However, little information is available on bacterial resistance to NMNs. In this study, owing to their oxidase-like and peroxidase-like properties, both Pt@NPs and Pd@NPs induce reactive oxygen species (ROS) and manifest antibacterial activities: 6.25 μg/mL of either Pt@NPs or Pd@NPs killed >50% of Staphylococcus aureus strain ATCC29213. However, Pseudomonas aeruginosa strain PAO1 completely resisted 12.5 μg/mL of Pt@NPs and 6.25 μg/mL of Pd@NPs. Compared to the non-NMN groups, these NMNs promoted 2-3-fold upregulation of the quorum sensing (QS) gene lasR in strain PAO1. In fact, the lasR gene upregulation induced a 1.5-fold reduction in ROS production and increased biofilm formation by 11% (Pt@NPs) and 27% (Pd@NPs) in strain PAO1. The ΔlasR mutants (lasR gene knock out in strain PAO1), became sensitive to NMNs. The survival rates of ΔlasR mutants at 12.5 μg/mL Pt@NPs and Pd@NPs treatments were only 77% and 58%, respectively. This is the first report indicating that bacteria can resist NMNs through QS. Based on these results, evaluation of the ecological risks of using NMNs as antibacterial agents is necessary.
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Affiliation(s)
- Zhangqiang Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Yunyun Zhang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Dan Huang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Le Huang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China
| | - Haibo Zhang
- China National Demonstration Center for Experimental Chemistry, Wuhan University, Wuhan 430072, China
| | - Na Li
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China
| | - Meizhen Wang
- School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, Hangzhou 310012, China.
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Gilbertson LM, Pourzahedi L, Laughton S, Gao X, Zimmerman JB, Theis TL, Westerhoff P, Lowry GV. Guiding the design space for nanotechnology to advance sustainable crop production. NATURE NANOTECHNOLOGY 2020; 15:801-810. [PMID: 32572231 DOI: 10.1038/s41565-020-0706-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Accepted: 05/04/2020] [Indexed: 05/24/2023]
Abstract
The globally recognized need to advance more sustainable agriculture and food systems has motivated the emergence of transdisciplinary solutions, which include methodologies that utilize the properties of materials at the nanoscale to address extensive and inefficient resource use. Despite the promising prospects of these nanoscale materials, the potential for large-scale applications directly to the environment and to crops necessitates precautionary measures to avoid unintended consequences. Further, the effects of using engineered nanomaterials (ENMs) in agricultural practices cascade throughout their life cycle and include effects from upstream-embodied resources and emissions from ENM production as well as their potential downstream environmental implications. Building on decades-long research in ENM synthesis, biological and environmental interactions, fate, transport and transformation, there is the opportunity to inform the sustainable design of nano-enabled agrochemicals. Here we perform a screening-level analysis that considers the system-wide benefits and costs for opportunities in which ENMs can advance the sustainability of crop-based agriculture. These include their on-farm use as (1) soil amendments to offset nitrogen fertilizer inputs, (2) seed coatings to increase germination rates and (3) foliar sprays to enhance yields. In each analysis, the nano-enabled alternatives are compared against the current practice on the basis of performance and embodied energy. In addition to identifying the ENM compositions and application approaches with the greatest potential to sustainably advance crop production, we present a holistic, prospective, systems-based approach that promotes emerging alternatives that have net performance and environmental benefits.
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Affiliation(s)
- Leanne M Gilbertson
- Department of Civil and Environmental Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
- Department of Chemical and Petroleum Engineering, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Leila Pourzahedi
- Civil and Environmental Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Stephanie Laughton
- Civil and Environmental Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Xiaoyu Gao
- Civil and Environmental Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA
| | - Julie B Zimmerman
- Chemical & Environmental Engineering & Forestry & Environmental Studies, Yale University, New Haven, CT, USA
| | - Thomas L Theis
- Institute for Environmental Science and Policy, University of Illinois at Chicago, Chicago, IL, USA
| | - Paul Westerhoff
- School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA
| | - Gregory V Lowry
- Civil and Environmental Engineering Department, Carnegie Mellon University, Pittsburgh, PA, USA
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Zhang J, Xiang Q, Shen L, Ling J, Zhou C, Hu J, Chen L. Surface charge-dependent bioaccumulation dynamics of silver nanoparticles in freshwater algae. CHEMOSPHERE 2020; 247:125936. [PMID: 31978664 DOI: 10.1016/j.chemosphere.2020.125936] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/09/2019] [Accepted: 01/15/2020] [Indexed: 06/10/2023]
Abstract
Silver nanoparticles (AgNPs) can gradually accumulate in algae to exert their toxicity; however, there is little knowledge about their bioaccumulation dynamics. For the first time, this study reports the effect of surface charge of AgNPs on their bioaccumulation dynamics in freshwater algae (Chlorella vulgaris) using biodynamic modeling. Polyethylene-coated AgNPs (PEI-AgNPs) and citrate-coated AgNPs (Cit-AgNPs) were selected as positively and negatively charged AgNPs, i.e., P-AgNPs and N-AgNPs, respectively. Their uptake and elimination dynamics were investigated at a concentration of 50% inhibition of growth rate values (EC50) and 10% inhibition of growth rate values (EC10). The one-component model can generally well simulate the algal uptake and elimination kinetics of N-AgNPs but not of P-AgNPs. At both concentrations, the uptake rate constants (ku) for P-AgNPs were ∼20 times higher than that for N-AgNPs. The parameters of biphasic elimination kinetics revealed that P-AgNPs were eliminated faster than N-AgNPs during depuration compared to in subsequent processes. Compared with N-AgNPs, extended Derjaguin-Landau-Verwey-Overbeek (DLVO) theory and dark-field imaging revealed that P-AgNPs can be rapidly absorbed on the algal cell surface membrane owing to their remarkably lower energy barrier between algal cells, resulting in a faster adsorption/uptake process and aggregation of algal cells. Our results clearly demonstrate that the AgNPs exhibited surface charge-dependent bioaccumulation dynamics in algal cells. Thus, AgNP surface charge primarily influences the AgNP accumulation dynamics in algal cells.
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Affiliation(s)
- Jilai Zhang
- Institute of International Rivers and Eco-security, Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-security, Yunnan University, Kunming, 650091, PR China; Yunnan International Joint Research Center for Hydro-Ecology Science & Engineering, Yunnan University, Kunming, 650091, PR China
| | - Qianqian Xiang
- Institute of International Rivers and Eco-security, Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-security, Yunnan University, Kunming, 650091, PR China; Yunnan International Joint Research Center for Hydro-Ecology Science & Engineering, Yunnan University, Kunming, 650091, PR China
| | - Lin Shen
- Institute of International Rivers and Eco-security, Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-security, Yunnan University, Kunming, 650091, PR China; Yunnan International Joint Research Center for Hydro-Ecology Science & Engineering, Yunnan University, Kunming, 650091, PR China
| | - Jian Ling
- College of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China
| | - Chuanhua Zhou
- College of Chemical Science and Technology, Yunnan University, Kunming, 650091, PR China
| | - Jinming Hu
- Institute of International Rivers and Eco-security, Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-security, Yunnan University, Kunming, 650091, PR China; Yunnan International Joint Research Center for Hydro-Ecology Science & Engineering, Yunnan University, Kunming, 650091, PR China.
| | - Liqiang Chen
- Institute of International Rivers and Eco-security, Yunnan Key Laboratory of International Rivers and Trans-Boundary Eco-security, Yunnan University, Kunming, 650091, PR China; Yunnan International Joint Research Center for Hydro-Ecology Science & Engineering, Yunnan University, Kunming, 650091, PR China.
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Cai W, Wang Y, Dang F, Zhou D. Copper pre-exposure reduces AgNP bioavailability to wheat. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 707:136084. [PMID: 31863980 DOI: 10.1016/j.scitotenv.2019.136084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 11/29/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
Heavy metals in contaminated sites can affect plant responses to emerging contaminates such as engineered silver nanoparticles (AgNPs), but the underlying mechanisms are poorly understood. After 4-day exposure to 0-2.5 mg Cu L-1 hydroponically, Cu concentrations in roots of wheat seedlings (Triticum aestivum L.) increased from 20 ± 3 to 325 ± 58 mg kg-1. Meanwhile, the cell death in root tips, as measured by the uptake of Evans blue stain, increased 1.8-2.8 times in response to Cu exposure. Total thiol contents in roots (including glutathione, cysteine and phytochelatins), as measured by high performance liquid chromatography, increased 1.4 times upon low Cu exposure but decreased 2.2 times upon high Cu exposure. After those wheats were exposed to 10 mg L-1 AgNPs for 8 h, the Ag influx rates decreased 1.3-3.9 times in Cu pre-exposed plants. Together, the cell death in root tips and thiol levels in roots could explain the decreased Ag influx rates of Cu pre-exposed plants. These findings indicate that the bioavailability of AgNPs without consideration of pre-existing metals could be over-estimated.
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Affiliation(s)
- Weiping Cai
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yujun Wang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
| | - Fei Dang
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China.
| | - Dongmei Zhou
- Key Laboratory of Soil Environment and Pollution Remediation, Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
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29
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Boehmler DJ, O'Dell ZJ, Chung C, Riley KR. Bovine Serum Albumin Enhances Silver Nanoparticle Dissolution Kinetics in a Size- and Concentration-Dependent Manner. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:1053-1061. [PMID: 31902212 DOI: 10.1021/acs.langmuir.9b03251] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The dissolution of silver nanoparticles (AgNPs) to release Ag(I)(aq) is an important mechanism in potentiating AgNP cytotoxicity and imparting their antibacterial properties. However, AgNPs can undergo other simultaneous biophysicochemical transformations, such as protein adsorption, which can mediate AgNP dissolution behaviors. We report the comprehensive analysis of AgNP dissolution and protein adsorption behaviors with monolayer surface coverage of AgNPs by bovine serum albumin (BSA). AgNP dissolution rate constants, kdissolution, were quantified over several particle sizes (10, 20, and 40 nm) and BSA concentrations (0-2 nM) using linear sweep stripping voltammetry. Across all particle sizes, the dissolution rate constant increased with increasing BSA concentrations. However, protein-enhanced dissolution behaviors were most pronounced for 10 nm AgNPs, which exhibited 3.6-fold and 7.7-fold relative enhancement when compared to 20 and 40 nm AgNPs, respectively. Changes to AgNP surface properties upon interaction with BSA were monitored using dynamic light scattering and zeta potential measurements, while BSA-AgNP complex formation was evaluated using UV-vis spectroscopy and circular dichroism spectroscopy. A subtle increase in the BSA-AgNP association constant was observed with an increase in the AgNP size. Together, these results suggest that the AgNP size dependence of BSA-enhanced dissolution of AgNPs is possibly mediated through both displacement of Ag(I)(aq)-loaded BSA by excess protein in the bulk solution and minimized accessibility of the AgNP surface because of BSA adsorption.
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Affiliation(s)
- Daniel J Boehmler
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Zachary J O'Dell
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Christopher Chung
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
| | - Kathryn R Riley
- Department of Chemistry and Biochemistry , Swarthmore College , Swarthmore , Pennsylvania 19081 , United States
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30
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Piechulek A, Berwanger LC, von Mikecz A. Silica nanoparticles disrupt OPT-2/PEP-2-dependent trafficking of nutrient peptides in the intestinal epithelium. Nanotoxicology 2019; 13:1133-1148. [DOI: 10.1080/17435390.2019.1643048] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Annette Piechulek
- IUF – Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Lutz C. Berwanger
- IUF – Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
| | - Anna von Mikecz
- IUF – Leibniz Research Institute for Environmental Medicine, Heinrich-Heine-University Duesseldorf, Duesseldorf, Germany
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31
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Lankone RS, Challis K, Pourzahedi L, Durkin DP, Bi Y, Wang Y, Garland MA, Brown F, Hristovski K, Tanguay RL, Westerhoff P, Lowry G, Gilbertson LM, Ranville J, Fairbrother DH. Copper release and transformation following natural weathering of nano-enabled pressure-treated lumber. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 668:234-244. [PMID: 30852200 DOI: 10.1016/j.scitotenv.2019.01.433] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/16/2019] [Accepted: 01/16/2019] [Indexed: 06/09/2023]
Abstract
Commercially available lumber, pressure-treated with micronized copper azole (MCA), has largely replaced other inorganic biocides for residential wood treatment in the USA, yet little is known about how different outdoor environmental conditions impact the release of ionic, nano-scale, or larger (micron-scale) copper from this product. Therefore, we weathered pressure treated lumber for 18 months in five different climates across the continental United States. Copper release was quantified every month and local weather conditions were recorded continuously to determine the extent to which local climate regulated the release of copper from this nano-enabled product during its use phase. Two distinct release trends were observed: In cooler, wetter climates release occurred primarily during the first few months of weathering, as the result of copper leaching from surface/near-surface areas. In warmer, drier climates, less copper was initially released due to limited precipitation. However, as the wood dried and cracked, the exposed copper-bearing surface area increased, leading to increased copper release later in the product lifetime. Single-particle-ICP-MS results from laboratory prepared MCA-wood leachate solutions indicated that a) the predominant form of released copper passed through a filter smaller than 0.45 micrometers and b) released particles were largely resistant to dissolution over the course of 6 wks. Toxicity Characteristic Leaching Procedure (TCLP) testing was conducted on nonweathered and weathered MCA-wood samples to simulate landfill conditions during their end-of-life (EoL) phase and revealed that MCA wood released <10% of initially embedded copper. Findings from this study provide data necessary to complete a more comprehensive evaluation of the environmental and human health impacts introduced through release of copper from pressure treated lumber utilizing life cycle assessment (LCA).
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Affiliation(s)
- Ronald S Lankone
- Johns Hopkins University, Department of Chemistry, Baltimore, MD 21218, United States of America
| | - Katie Challis
- Colorado School of Mines, Department of Chemistry and Geochemistry, Golden, CO 80401, United States of America
| | - Leila Pourzahedi
- Carnegie Mellon University, Department of Civil and Environmental Engineering, Pittsburgh, PA 15213, United States of America
| | - David P Durkin
- United States Naval Academy, Department of Chemistry, Annapolis, MD 21402, United States of America
| | - Yuqiang Bi
- Arizona State University, School of Sustainable Engineering and The Built Environment, Tempe, AZ 85287-3005, United States of America
| | - Yan Wang
- University of Pittsburgh, Department of Civil and Environmental Engineering, Pittsburgh, PA 15261, United States of America
| | - Michael A Garland
- Oregon State University, The Sinnhuber Aquatic Research Laboratory, Corvallis, OR 97333, United States of America
| | - Frank Brown
- Arizona State University, The Polytechnic School, Ira. A Fulton Schools of Engineering, Mesa, AZ 85212, United States of America
| | - Kiril Hristovski
- Arizona State University, The Polytechnic School, Ira. A Fulton Schools of Engineering, Mesa, AZ 85212, United States of America
| | - Robert L Tanguay
- Oregon State University, The Sinnhuber Aquatic Research Laboratory, Corvallis, OR 97333, United States of America
| | - Paul Westerhoff
- Arizona State University, School of Sustainable Engineering and The Built Environment, Tempe, AZ 85287-3005, United States of America
| | - Greg Lowry
- Carnegie Mellon University, Department of Civil and Environmental Engineering, Pittsburgh, PA 15213, United States of America
| | - Leanne M Gilbertson
- University of Pittsburgh, Department of Civil and Environmental Engineering, Pittsburgh, PA 15261, United States of America
| | - James Ranville
- Colorado School of Mines, Department of Chemistry and Geochemistry, Golden, CO 80401, United States of America
| | - D Howard Fairbrother
- Johns Hopkins University, Department of Chemistry, Baltimore, MD 21218, United States of America.
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32
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Ale A, Liberatori G, Vannuccini ML, Bergami E, Ancora S, Mariotti G, Bianchi N, Galdopórpora JM, Desimone MF, Cazenave J, Corsi I. Exposure to a nanosilver-enabled consumer product results in similar accumulation and toxicity of silver nanoparticles in the marine mussel Mytilus galloprovincialis. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2019; 211:46-56. [PMID: 30946994 DOI: 10.1016/j.aquatox.2019.03.018] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 03/22/2019] [Accepted: 03/26/2019] [Indexed: 06/09/2023]
Abstract
The incorporation of silver nanoparticles (AgNPs) in commercial products is increasing rapidly. The consequent release of AgNPs into domestic and industrial wastewater raises environmental concerns due to their anti-microbial properties and toxicity to non-target aquatic organisms. The aim of the present study was to investigate the effects of nanArgen™ (Nanotek S.A.), a AgNP-enabled consumer product, in the marine bivalve Mytilus galloprovincialis. Two environmentally relevant concentrations of nanArgen™ (1 and 10 μg/L) were tested in vivo for 96 h, and Ag was quantified in mussel soft tissue and natural seawater (NSW). nanArgen™ suspensions were characterized via TEM, SEM, EDS, DLS, and UV-vis optical analysis. Several molecular and biochemical responses were investigated in exposed mussels: lysosomal membrane stability by Neutral Red Retention Time (NRRT) assay; micronucleus (MN) frequency in hemocytes; metallothionein (MT) protein content and gene expression (mt10 and mt20); catalase (CAT) and glutathione-S-transferase (GST) activities; malondialdehyde (MDA) accumulation in digestive glands; and efflux activity of ATP-binding cassette transport proteins (ABC) in gill biopsies. SEM, TEM and DLS analyses confirmed the presence of well-defined AgNPs in nanArgen™ which were roughly spherical with an average particle size of approx. 30 ± 10 nm. DLS analysis revealed the formation of AgNP aggregates in nanArgen™ suspension in NSW (Z-average of 547.80 ± 90.23 nm; PDI of 0.044). A significant concentration-dependent accumulation of Ag was found in mussels' whole soft tissue in agreement with a concentration-dependent decrease in NRRT and an increase of MN frequency in hemocytes and GST activities in digestive glands. A significant increase in MDA levels and MT via both molecular and biochemical tests, were also observed but only at the highest nanArgen™ concentration (10 μg/L). No changes were observed in CAT activities. ABC efflux activities in gill biopsies showed a significant decrease (p < 0.05) only at the lowest concentration (1 μg/L). On such basis, nanArgen™ is shown to be able to induce toxicity and Ag accumulation in marine mussels similarly to AgNPs and in short-term exposure conditions at environmentally relevant concentrations. AgNP-enabled products, instead of pristine AgNPs, should be the focus of future ecotoxicity studies in order to address any risks associated to their widespread use, disposal and uncontrolled release into the aquatic environment for non target species.
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Affiliation(s)
- Analía Ale
- Laboratorio de Ictiología, Instituto Nacional de Limnología (INALI-CONICET-UNL), Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina.
| | - Giulia Liberatori
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy.
| | - Maria Luisa Vannuccini
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - Elisa Bergami
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - Stefania Ancora
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - Giacomo Mariotti
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - Nicola Bianchi
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
| | - Juan M Galdopórpora
- Universidad de Buenos Aires, CONICET, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Cátedra de Química Analítica Instrumental, Buenos Aires, Argentina
| | - Martín F Desimone
- Universidad de Buenos Aires, CONICET, Instituto de Química y Metabolismo del Fármaco (IQUIMEFA), Facultad de Farmacia y Bioquímica, Cátedra de Química Analítica Instrumental, Buenos Aires, Argentina
| | - Jimena Cazenave
- Laboratorio de Ictiología, Instituto Nacional de Limnología (INALI-CONICET-UNL), Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina; Departamento de Ciencias Naturales, Facultad de Humanidades y Ciencias, Universidad Nacional del Litoral (FHUC-UNL), Paraje El Pozo, Ciudad Universitaria UNL, Santa Fe, Argentina
| | - Ilaria Corsi
- Department of Physical, Earth and Environmental Sciences, University of Siena, via Mattioli 4, Siena, Italy
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33
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Kang W, Li X, Sun A, Yu F, Hu X. Study of the Persistence of the Phytotoxicity Induced by Graphene Oxide Quantum Dots and of the Specific Molecular Mechanisms by Integrating Omics and Regular Analyses. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3791-3801. [PMID: 30870590 DOI: 10.1021/acs.est.8b06023] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Although increasing attention has been paid to the nanotoxicity of graphene oxide quantum dots (GOQDs) due to their broad range of applications, the persistence and recoverability associated with GOQDs had been widely ignored. Interestingly, stress-response hormesis for algal growth was observed for Chlorella vulgaris as a single-celled model organism. Few physiological parameters, such as algal density, plasmolysis, and levels of reactive oxygen species, exhibited facile recovery. In contrast, the effects on chlorophyll a levels, permeability, and starch grain accumulation exhibited persistent toxicity. In the exposure stage, the downregulation of genes related to unsaturated fatty acid biosynthesis, carotenoid biosynthesis, phenylpropanoid biosynthesis, and binding contributed to toxic effects on photosynthesis. In the recovery stage, downregulation of genes related to the cis-Golgi network, photosystem I, photosynthetic membrane, and thylakoid was linked to the persistence of toxic effects on photosynthesis. The upregulated galactose metabolism and downregulated aminoacyl-tRNA biosynthesis also indicated toxicity persistence in the recovery stage. The downregulation and upregulation of phenylalanine metabolism in the exposure and recovery stages, respectively, reflected the tolerance of the algae to GOQDs. The present study highlights the importance of studying nanotoxicity by elucidation of stress and recovery patterns with metabolomics and transcriptomics.
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Affiliation(s)
- Weilu Kang
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
| | - Xiaokang Li
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
| | - Anqi Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
| | - Fubo Yu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering , Nankai University , Tianjin 300350 , P. R. China
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34
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Dong F, Zhou Y. Differential transformation and antibacterial effects of silver nanoparticles in aerobic and anaerobic environment. Nanotoxicology 2019; 13:339-353. [DOI: 10.1080/17435390.2018.1548667] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Feng Dong
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore
| | - Yan Zhou
- School of Civil and Environmental Engineering, Nanyang Technological University, Singapore
- Advanced Environmental Biotechnology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, Singapore
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35
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Liao C, Li Y, Tjong SC. Bactericidal and Cytotoxic Properties of Silver Nanoparticles. Int J Mol Sci 2019; 20:E449. [PMID: 30669621 PMCID: PMC6359645 DOI: 10.3390/ijms20020449] [Citation(s) in RCA: 411] [Impact Index Per Article: 82.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 01/14/2019] [Accepted: 01/17/2019] [Indexed: 12/16/2022] Open
Abstract
Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.
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Affiliation(s)
- Chengzhu Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yuchao Li
- Department of Materials Science and Engineering, Liaocheng University, Liaocheng 252000, China.
| | - Sie Chin Tjong
- Department of Physics, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, China.
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36
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Gonçalves SPCC, Strauss M, Martinez DST. The Positive Fate of Biochar Addition to Soil in the Degradation of PHBV-Silver Nanoparticle Composites. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:13845-13853. [PMID: 30354084 DOI: 10.1021/acs.est.8b01524] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The environmental contamination of soils by polymeric and nanomaterials is an increasing global concern. Polymeric composites containing silver nanoparticles (AgNP) are collectively one of the most important products of nanotechnology due to their remarkable antimicrobial activity. Biochars are a promising resource for environmental technologies for remediation of soils considering their high inorganic and organic pollutant adsorption capacity and microbial soil consortium stimulation. In this work we report, for the first time, the use of biochar material as a tool to accelerate the degradation of polyhydroxybutyrate- co-valerate (PHBV) and PHBV composites containing AgNP in a tropical soil system, under laboratory conditions. This positive effect is associated with microbial community improvement, which increased the degradation rate of the polymeric materials, as confirmed by integrated techniques for advanced materials characterization. The addition of 5-10% of sugarcane bagasse biochar into soil has increased the degradation of these polymeric materials 2 to 3 times after 30 days of soil incubation. However, the presence of silver nanoparticles in the PHBV significantly reduced the degradability potential of this nanocomposite by the soil microbial community. These results provide evidence that AgNP or Ag+ ions caused a decline in the total number of bacteria and fungi, which diminished the polymer degradation rate in soil. Finally, this work highlights the great potential of biochar resources for application in soil remediation technologies, such as polymeric (nano)material biodegradation.
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Affiliation(s)
- Suely Patrı Cia Costa Gonçalves
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Mathias Strauss
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
| | - Diego Stéfani Teodoro Martinez
- Brazilian Nanotechnology National Laboratory (LNNano) , Brazilian Center for Research in Energy and Materials (CNPEM) , Campinas , São Paulo , Brazil . P.O. Box 6192, 13083-970
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37
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Calderón L, Yang L, Lee K, Mainelis G. Characterization of Airborne Particle Release from Nanotechnology-enabled Clothing Products. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2018; 20:330. [PMID: 32792850 PMCID: PMC7423247 DOI: 10.1007/s11051-018-4435-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Accepted: 11/29/2018] [Indexed: 06/11/2023]
Abstract
This study investigated airborne particle release from seventeen nanotechnology-enabled clothing items, including eleven items that were advertised as containing silver nanoparticles. Clothing wear was simulated using an abrader, where the rotating clothing samples came in contact with felt abrader wheels, and size distribution and concentration of the released particles were measured using a Scanning Mobility Particle Sizer and Aerodynamic Particle Sizer. Through the use of inductively coupled plasma mass spectrometry, silver was detected in all eleven products advertised as containing silver, and its concentration varied from approximately 1 ppm to ~1.5×105 ppm depending on the product. Nano-sized particles, as well as larger agglomerates, were released from all investigated products with concentrations as high as ~2×104 particles/cm3; the concentration and size distribution varied substantially from product to product, and silver-based clothing tended to release smaller and higher number concentrations of particles than products where fibers were formulated using nanotechnology. Examination of the released particles using TEM confirmed the presence of manufactured nanoparticles; airborne sample analysis using SEM/EDS showed that the released particles contained Ag as well as other metals. This study can be valuable for the risk assessment of nanotechnology-based consumer goods, especially clothing containing silver.
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Affiliation(s)
- Leonardo Calderón
- Rutgers University, Department of Environmental Sciences, New Brunswick, NJ 08901, USA
| | - Letao Yang
- Rutgers University, Department of Chemistry and Chemical Biology, Piscataway, NJ 08854, USA
| | - Kibum Lee
- Rutgers University, Department of Chemistry and Chemical Biology, Piscataway, NJ 08854, USA
| | - Gediminas Mainelis
- Rutgers University, Department of Environmental Sciences, New Brunswick, NJ 08901, USA
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Westerband EI, Hicks AL. Nanosilver-Enabled Food Storage Container Tradeoffs: Environmental Impacts Versus Food Savings Benefit, Informed by Literature. INTEGRATED ENVIRONMENTAL ASSESSMENT AND MANAGEMENT 2018; 14:769-776. [PMID: 30117274 DOI: 10.1002/ieam.4093] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 05/11/2018] [Accepted: 08/07/2018] [Indexed: 06/08/2023]
Abstract
Globally, thousands of tons of food are lost each year due to spoilage and degraded quality. This loss is a current critical issue that must be addressed to ensure adequate food supply for the growing world population; the use of technology and regulatory practices are avenues to a solution. One considered approach is the reduction of the microorganism population on the surface of food products to delay spoilage through the use of antimicrobials. One current method is the use of the antimicrobial properties of nanoscale silver (nAg) particles to prolong the freshness of stored food by reducing the bacteria present. Nanoscale silver-enabled food storage containers present a potential solution to the food loss problem; nevertheless, their environmental and human health effects have been questioned by the scientific community. Literature is used to generate data for the life cycle impact assessment of these types of products and their corresponding environmental effects. The benefits of nAg-enabled food storage containers are considered with respect to their potential to extend the shelf life of stored food and prevent food spoilage. The results illustrate that the environmental effects of nano-enabling food storage containers with silver is small (when the initial silver concentration is relatively low, less than 1% by mass) compared with the overall environmental effects of food storage containers and also relatively small compared with the environmental effects of producing the stored food. This finding suggests that the added environmental burden of nano-enabling food storage containers may be small when compared with the environmental burden of food losses. Integr Environ Assess Manag 2018;14:769-776. © 2018 SETAC.
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Affiliation(s)
- Edward I Westerband
- Department of Civil & Environmental Engineering, College of Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Andrea L Hicks
- Department of Civil & Environmental Engineering, College of Engineering, University of Wisconsin-Madison, Madison, Wisconsin, USA
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Alivio TEG, Fleer NA, Singh J, Nadadur G, Feng M, Banerjee S, Sharma VK. Stabilization of Ag-Au Bimetallic Nanocrystals in Aquatic Environments Mediated by Dissolved Organic Matter: A Mechanistic Perspective. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:7269-7278. [PMID: 29864275 DOI: 10.1021/acs.est.8b01003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Gold and silver nanoparticles can be stabilized endogenously within aquatic environments from dissolved ionic species as a result of mineralization induced by dissolved organic matter. However, the ability of fulvic and humic acids to stabilize bimetallic nanoparticles is entirely unexplored. Elucidating the formation of such particles is imperative given their potential ecological toxicity. Herein, we demonstrate the nucleation, growth, and stabilization of bimetallic Ag-Au nanocrystals from the interactions of Ag+ and Au3+ with Suwannee River fulvic and humic acids. The mechanisms underpinning the stabilization of Ag-Au alloy NPs at different pH (6.0-9.0) values are studied by UV-vis spectrophotometry, X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), and selected area electron diffraction (SAED). Complexation of free Ag+ and Au3+ ions with the Lewis basic groups (carbonyls, carboxyls, and thiols) of FA and HA, followed by electron-transfer from redox-active moieties present in dissolved organic matter initiates the nucleation of the NPs. Alloy formation and interdiffusion of Au and Ag atoms are further facilitated by a galvanic replacement reaction between AuCl4- and Ag. Charge-transfer from Au to Ag stabilizes the formed bimetallic NPs. A more pronounced agglomeration of the Ag-Au NPs is observed when HA is used compared to FA as the reducing agent. The bimetallic NPs are stable for greater than four months, which suggests the possible persistence and dispersion of these materials in aquatic environments. The mechanistic ideas have broad generalizability to reductive mineralization processes mediated by dissolved organic matter.
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Affiliation(s)
- Theodore E G Alivio
- Department of Chemistry , Texas A&M University , College Station , Texas 77842-3012 , United States
- Department of Materials Science and Engineering , Texas A&M University , College Station , Texas 77843-3003 , United States
| | - Nathan A Fleer
- Department of Chemistry , Texas A&M University , College Station , Texas 77842-3012 , United States
- Department of Materials Science and Engineering , Texas A&M University , College Station , Texas 77843-3003 , United States
| | - Jashanpreet Singh
- Department of Environmental and Occupational Health, School of Public Health , Texas A&M University , College Station , Texas 77843-8371 , United States
| | - Govind Nadadur
- Department of Environmental and Occupational Health, School of Public Health , Texas A&M University , College Station , Texas 77843-8371 , United States
| | - Mingbao Feng
- Department of Environmental and Occupational Health, School of Public Health , Texas A&M University , College Station , Texas 77843-8371 , United States
| | - Sarbajit Banerjee
- Department of Chemistry , Texas A&M University , College Station , Texas 77842-3012 , United States
- Department of Materials Science and Engineering , Texas A&M University , College Station , Texas 77843-3003 , United States
| | - Virender K Sharma
- Department of Environmental and Occupational Health, School of Public Health , Texas A&M University , College Station , Texas 77843-8371 , United States
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Sun A, Ban Z, Mu L, Hu X. Screening Small Metabolites from Cells as Multifunctional Coatings Simultaneously Improves Nanomaterial Biocompatibility and Functionality. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800341. [PMID: 30027060 PMCID: PMC6051401 DOI: 10.1002/advs.201800341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2018] [Revised: 04/04/2018] [Indexed: 05/05/2023]
Abstract
Currently, nanomaterials face a dilemma due to their advantageous properties and potential risks to human health. Here, a strategy to improve both nanomaterial biocompatibility and functionality is established by screening small metabolites from cells as nanomaterial coatings. A metabolomics analysis of cells exposed to nanosilver (nAg) integrates volcano plots (t-tests and fold change analysis), partial least squares-discriminant analysis (PLS-DA), and significance analysis of microarrays (SAM) and identifies six metabolites (l-aspartic acid, l-malic acid, myoinositol, d-sorbitol, citric acid, and l-cysteine). The further analysis of cell viability, oxidative stress, and cell apoptosis reveals that d-sorbitol markedly reduces nAg cytotoxicity. Subsequently, small molecule loading, surface oxidation, and ionic release experiments support d-sorbitol as the optimal coating for nAg. Importantly, d-sorbitol loading improves the duration of the antibacterial activity of nAg against Escherichia coli and Staphylococcus aureus. The biocidal persistence of nAg-sorbitol is extended beyond 9 h, and the biocidal effects at 12 h are significantly higher than those of naked nAg. This work proposes a new strategy to improve the biocompatibility and functionality of nAg simultaneously by screening small metabolites from cells as nanomaterial functional coatings, a method that can be applied to mitigate the side effects of other nanomaterials.
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Affiliation(s)
- Anqi Sun
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
| | - Zhan Ban
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
| | - Li Mu
- Tianjin Key Laboratory of Agro‐environment and Safe‐productKey Laboratory for Environmental Factors Control of Agro‐product Quality Safety (Ministry of Agriculture)Institute of Agro‐environmental ProtectionMinistry of AgricultureTianjin300191China
| | - Xiangang Hu
- Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education)/Tianjin Key Laboratory of Environmental Remediation and Pollution ControlCollege of Environmental Science and EngineeringNankai UniversityTianjin300071China
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Chen C, Marcus IM, Waller T, Walker SL. Comparison of filtration mechanisms of food and industrial grade TiO2 nanoparticles. Anal Bioanal Chem 2018; 410:6133-6140. [DOI: 10.1007/s00216-018-1132-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/27/2018] [Accepted: 05/07/2018] [Indexed: 12/21/2022]
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42
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He X, Fu P, Aker WG, Hwang HM. Toxicity of engineered nanomaterials mediated by nano-bio-eco interactions. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2018; 36:21-42. [PMID: 29297743 DOI: 10.1080/10590501.2017.1418793] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Engineered nanomaterials may adversely impact human health and environmental safety by nano-bio-eco interactions not fully understood. Their interaction with biotic and abiotic environments are varied and complicated, ranging from individual species to entire ecosystems. Their behavior, transport, fate, and toxicological profiles in these interactions, addressed in a pioneering study, are subsequently seldom reported. Biological, chemical, and physical dimension properties, the so-called multidimensional characterization, determine interactions. Intermediate species generated in the dynamic process of nanomaterial transformation increase the complexity of assessing nanotoxicity. We review recent progress in understanding these interactions, discuss the challenges of the study, and suggest future research directions.
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Affiliation(s)
- Xiaojia He
- a Department of Marine Sciences , The University of Georgia , Athens , GA , USA
| | - Peter Fu
- b National Center for Toxicological Research , U.S. Food and Drug Administration , Jefferson , AR , USA
| | - Winfred G Aker
- c Department of Biology , Jackson State University , Jackson , MS , USA
| | - Huey-Min Hwang
- c Department of Biology , Jackson State University , Jackson , MS , USA
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43
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Affiliation(s)
- Susan D Richardson
- Department of Chemistry and Biochemistry, University of South Carolina , Columbia, South Carolina 29205, United States
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44
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Tanner EEL, Sokolov SV, Young NP, Batchelor‐McAuley C, Compton RG. Fluorescence Electrochemical Microscopy: Capping Agent Effects with Ethidium Bromide/DNA Capped Silver Nanoparticles. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201707809] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Eden E. L. Tanner
- University of Oxford Department of Chemistry Physical and Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OX1 3QZ UK
| | - Stanislav V. Sokolov
- University of Oxford Department of Chemistry Physical and Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OX1 3QZ UK
| | - Neil P. Young
- Department of Materials University of Oxford Oxford OX1 3PH UK
| | - Christopher Batchelor‐McAuley
- University of Oxford Department of Chemistry Physical and Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OX1 3QZ UK
| | - Richard G. Compton
- University of Oxford Department of Chemistry Physical and Theoretical Chemistry Laboratory Oxford University South Parks Road Oxford OX1 3QZ UK
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45
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Tanner EEL, Sokolov SV, Young NP, Batchelor-McAuley C, Compton RG. Fluorescence Electrochemical Microscopy: Capping Agent Effects with Ethidium Bromide/DNA Capped Silver Nanoparticles. Angew Chem Int Ed Engl 2017; 56:12751-12754. [PMID: 28834588 DOI: 10.1002/anie.201707809] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/21/2017] [Indexed: 12/23/2022]
Abstract
Fluorescence microscopy and electrochemistry were employed to examine capping agent dynamics in silver nanoparticles capped with DNA intercalated with ethidium bromide, a fluorescent molecule. The capped NPs were studied first electrochemically, demonstrating that the intercalation of the capping agent promotes oxidation of the silver core, occurring at 0.50 V (vs. Ag, compared with 1.15 V for Ag NPs capped in DNA alone). Second, fluorescence electrochemical microscopy revealed that the electron transfer from the nanoparticles is gated by the capping agent, allowing dynamic insights unobservable using electrochemistry alone.
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Affiliation(s)
- Eden E L Tanner
- University of Oxford, Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UK
| | - Stanislav V Sokolov
- University of Oxford, Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UK
| | - Neil P Young
- Department of Materials, University of Oxford, Oxford, OX1 3PH, UK
| | - Christopher Batchelor-McAuley
- University of Oxford, Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UK
| | - Richard G Compton
- University of Oxford, Department of Chemistry, Physical and Theoretical Chemistry Laboratory, Oxford University, South Parks Road, Oxford, OX1 3QZ, UK
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