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Sabo-Attwood T, Apul OG, Bisesi JH, Kane AS, Saleh NB. Nano-scale applications in aquaculture: Opportunities for improved production and disease control. JOURNAL OF FISH DISEASES 2021; 44:359-370. [PMID: 33559228 DOI: 10.1111/jfd.13332] [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: 09/12/2020] [Revised: 12/16/2020] [Accepted: 12/16/2020] [Indexed: 06/12/2023]
Abstract
Aquaculture is the fastest growing food-production sector and is vital to food security, habitat restoration and endangered species conservation. One of the continued challenges to the industry is our ability to manage aquatic disease agents that can rapidly decimate operations and are a constant threat to sustainability. Such threats also evolve as microbes acquire resistance and/or new pathogens emerge. The advent of nanotechnology has transformed our approach to fisheries disease management with advances in water disinfection, food conversion, fish health and management systems. In this review, several nano-enabled technology successes will be discussed as they relate to the challenges associated with disease management in the aquaculture sector, with a particular focus on fishes. Future perspectives on how nanotechnology can offer functional approaches for improving disinfection and innovating at the practical space of early warning systems will be discussed. Finally, the importance of "safety by design" approaches to the development of novel commercial nano-enabled products will be emphasized.
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Affiliation(s)
- Tara Sabo-Attwood
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA
| | - Onur G Apul
- Department of Civil and Environmental Engineering, University of Maine, Orono, ME, USA
| | - Joseph H Bisesi
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA
| | - Andrew S Kane
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology, Emerging Pathogens Institute, University of Florida, Gainesville, FL, USA
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering, University of Texas at Austin, Austin, TX, USA
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de Medeiros AMZ, Khan LU, da Silva GH, Ospina CA, Alves OL, de Castro VL, Martinez DST. Graphene oxide-silver nanoparticle hybrid material: an integrated nanosafety study in zebrafish embryos. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 209:111776. [PMID: 33341698 DOI: 10.1016/j.ecoenv.2020.111776] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/04/2020] [Accepted: 12/05/2020] [Indexed: 05/24/2023]
Abstract
This work reports an integrated nanosafety study including the synthesis and characterization of the graphene oxide-silver nanoparticle hybrid material (GO-AgNPs) and its nano-ecotoxicity evaluation in the zebrafish embryo model. The influences of natural organic matter (NOM) and a chorion embryo membrane were considered in this study, looking towards more environmentally realistic scenarios and standardized nanotoxicity testing. The nanohybrid was successfully synthesized using the NaBH4 aqueous method, and AgNPs (~ 5.8 nm) were evenly distributed over the GO surface. GO-AgNPs showed a dose-response acute toxicity: the LC50 was 1.5 mg L-1 for chorionated embryos. The removal of chorion, however, increased this toxic effect by 50%. Furthermore, the presence of NOM mitigated mortality, and LC50 for GO-AgNPs changed respectively from 2.3 to 1.2 mg L-1 for chorionated and de-chorionated embryos. Raman spectroscopy confirmed the ingestion of GO by embryos; but without displaying acute toxicity up to 100 mg L-1, indicating that the silver drove toxicity down. Additionally, it was observed that silver nanoparticle dissolution has a minimal effect on these observed toxicity results. Finally, understanding the influence of chorion membranes and NOM is a critical step towards the standardization of testing for zebrafish embryo toxicity in safety assessments and regulatory issues.
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Affiliation(s)
- Aline M Z de Medeiros
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo State, Brazil; Brazilian Agricultural Research Corporation (Embrapa Environment), Jaguariúna, São Paulo State, Brazil
| | - Latif U Khan
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Gabriela H da Silva
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Carlos A Ospina
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil
| | - Oswaldo L Alves
- Laboratory of Solid State Chemistry (LQES) and NanoBioss Laboratory, University of Campinas (Unicamp), Campinas, São Paulo State, Brazil
| | - Vera Lúcia de Castro
- Brazilian Agricultural Research Corporation (Embrapa Environment), Jaguariúna, São Paulo State, Brazil
| | - Diego Stéfani T Martinez
- Brazilian Nanotechnology National Laboratoy (LNNano), Brazilian Center for Research in Energy and Materials (CNPEM), Campinas, São Paulo State, Brazil; Center of Nuclear Energy in Agriculture (CENA), University of São Paulo (USP), Piracicaba, São Paulo State, Brazil; Laboratory of Solid State Chemistry (LQES) and NanoBioss Laboratory, University of Campinas (Unicamp), Campinas, São Paulo State, Brazil.
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Gottardo S, Mech A, Drbohlavová J, Małyska A, Bøwadt S, Riego Sintes J, Rauscher H. Towards safe and sustainable innovation in nanotechnology: State-of-play for smart nanomaterials. NANOIMPACT 2021; 21:100297. [PMID: 33738354 PMCID: PMC7941606 DOI: 10.1016/j.impact.2021.100297] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2020] [Revised: 01/12/2021] [Accepted: 01/13/2021] [Indexed: 06/01/2023]
Abstract
The European Green Deal, the European Commission's new Action Plan for a Circular Economy, the new European Industrial Strategy and the Chemicals Strategy for Sustainability launched in October 2020 are ambitious plans to achieve a sustainable, fair and inclusive European Union's economy. In line with the United Nations Sustainable Development Goals 2030, these policies require that any new material or product should be not only functional and cost-effective but also safe and sustainable to ensure compliance with regulation and acceptance by consumers. Nanotechnology is one of the technologies that could enable such a green growth. This paper focuses on advanced nanomaterials that actively respond to external stimuli, also known as 'smart nanomaterials', and which are already on the market or in the research and development phase for non-medical applications such as in agriculture, food, food packaging and cosmetics. A review shows that smart nanomaterials and enabled products may present new challenges for safety and sustainability assessment due to their complexity and dynamic behaviour. Moreover, existing regulatory frameworks, in particular in the European Union, are probably not fully prepared to address them. What is missing today is a systematic and comprehensive approach that allows for considering sustainability aspects hand in hand with safety considerations very early on at the material design stage. We call on innovators, scientists and authorities to further develop and promote the 'Safe- and Sustainable-by-Design' concept in nanotechnology and propose some initiatives to go into this direction.
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Affiliation(s)
| | - Agnieszka Mech
- European Commission, Joint Research Centre (JRC), Ispra, Italy
| | - Jana Drbohlavová
- European Commission, DG Research and Innovation, Brussels, Belgium
| | | | - Søren Bøwadt
- European Commission, DG Research and Innovation, Brussels, Belgium
| | | | - Hubert Rauscher
- European Commission, Joint Research Centre (JRC), Ispra, Italy
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Almasri DA, Saleh NB, Atieh MA, McKay G, Ahzi S. Adsorption of phosphate on iron oxide doped halloysite nanotubes. Sci Rep 2019; 9:3232. [PMID: 30824719 PMCID: PMC6397243 DOI: 10.1038/s41598-019-39035-2] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2018] [Accepted: 11/15/2018] [Indexed: 12/02/2022] Open
Abstract
Excess phosphate in water is known to cause eutrophication, and its removal is imperative. Nanoclay minerals are widely used in environmental remediation due to their low-cost, adequate availability, environmental compatibility, and adsorption efficiency. However, the removal of anions with nanoclays is not very effective because of electrostatic repulsion from clay surfaces with a net negative charge. Among clay minerals, halloysite nanotubes (HNTs) possess a negatively charged exterior and a positively charged inner lumen. This provides an increased affinity for anion removal. In this study, HNTs are modified with nano-scale iron oxide (Fe2O3) to enhance the adsorption capacity of the nanosorbent. This modification allowed for effective distribution of these oxide surfaces, which are known to sorb phosphate via ligand exchange and by forming inner-sphere complexes. A detailed characterization of the raw and (Fe2O3) modified HNTs (Fe-HNT) is conducted. Influences of Fe2O3 loading, adsorbent dosage, contact time, pH, initial phosphate concentration, and coexisting ions on the phosphate adsorption capacity are studied. Results demonstrate that adsorption on Fe-HNT is pH-dependent with fast initial adsorption kinetics. The underlying mechanism is identified as a combination of electrostatic attraction, ligand exchange, and Lewis acid-base interactions. The nanomaterial provides promising results for its application in water/wastewater treatment.
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Affiliation(s)
- Dema A Almasri
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO Box 34110, Doha, Qatar.,College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, PO Box 34110, Doha, Qatar
| | - Navid B Saleh
- Department of Civil, Architectural and Environmental Engineering, University of Texas, Austin, TX, 78712, USA
| | - Muataz A Atieh
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO Box 34110, Doha, Qatar. .,College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, PO Box 34110, Doha, Qatar.
| | - Gordon McKay
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO Box 34110, Doha, Qatar
| | - Said Ahzi
- Qatar Environment and Energy Research Institute (QEERI), Hamad Bin Khalifa University (HBKU), Qatar Foundation, PO Box 34110, Doha, Qatar. .,College of Science and Engineering, Hamad Bin Khalifa University, Qatar Foundation, PO Box 34110, Doha, Qatar.
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Das D, Sabaraya IV, Zhu T, Sabo-Attwood T, Saleh NB. Aggregation Behavior of Multiwalled Carbon Nanotube-Titanium Dioxide Nanohybrids: Probing the Part-Whole Question. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:8233-8241. [PMID: 29944362 PMCID: PMC6269091 DOI: 10.1021/acs.est.7b05826] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Multiwalled carbon nanotube-titanium dioxide (MWNT-TiO2) nanohybrids (NHs), a promising support for electrocatalysts, have a high likelihood of environmental release. Aggregation of these NHs may or may not be captured by the sum of their component behavior, thus necessitating a systematic evaluation. This study probes the "part-whole question" by systematically evaluating the role of TiO2 loading (C:Ti molar ratios of 1:0.1, 1:0.05 and 1:0.033) on the aggregation behavior of these NHs. Aggregation kinetics of these in-house synthesized (using a sol-gel method) NHs and the components is investigated with time-resolved dynamic light scattering in the presence of mono- and divalent cations and with and without Suwannee River humic acid. A deviation in the aggregation behavior from classical electrokinetic theory has been observed which indicates that the material complexity has a strong influence in the observed behavior; hence other material attributes (e.g., fractal dimension, surface roughness, charge heterogeneity, etc.) should be carefully considered when studying such materials. The sum of the aggregation behavior of the parts may not capture that of the whole (i.e., of the NHs); aggregation depends on the TiO2 loading and also on the hybridization process and the background aquatic chemistry.
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Affiliation(s)
- Dipesh Das
- Department of Civil, Architectural and Environmental
Engineering, The University of Texas at Austin, Austin, Texas 78712, United
States
| | - Indu Venu Sabaraya
- Department of Civil, Architectural and Environmental
Engineering, The University of Texas at Austin, Austin, Texas 78712, United
States
| | - Tongren Zhu
- Department of Civil, Architectural and Environmental
Engineering, The University of Texas at Austin, Austin, Texas 78712, United
States
| | - Tara Sabo-Attwood
- Department of Environment and Global Health,
University of Florida, Gainesville, Florida 32610, United States
| | - Navid B. Saleh
- Department of Civil, Architectural and Environmental
Engineering, The University of Texas at Austin, Austin, Texas 78712, United
States
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Roa R, Angioletti-Uberti S, Lu Y, Dzubiella J, Piazza F, Ballauff M. Catalysis by Metallic Nanoparticles in Solution: Thermosensitive Microgels as Nanoreactors. ACTA ACUST UNITED AC 2018. [DOI: 10.1515/zpch-2017-1078] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Abstract
Metallic nanoparticles have been used as catalysts for various reactions, and the huge literature on the subject is hard to overlook. In many applications, the nanoparticles must be affixed to a colloidal carrier for easy handling during catalysis. These “passive carriers” (e.g. dendrimers) serve for a controlled synthesis of the nanoparticles and prevent coagulation during catalysis. Recently, hybrids from nanoparticles and polymers have been developed that allow us to change the catalytic activity of the nanoparticles by external triggers. In particular, single nanoparticles embedded in a thermosensitive network made from poly(N-isopropylacrylamide) (PNIPAM) have become the most-studied examples of such hybrids: immersed in cold water, the PNIPAM network is hydrophilic and fully swollen. In this state, hydrophilic substrates can diffuse easily through the network, and react at the surface of the nanoparticles. Above the volume transition located at 32°C, the network becomes hydrophobic and shrinks. Now hydrophobic substrates will preferably diffuse through the network and react with other substrates in the reaction catalyzed by the enclosed nanoparticle. Such “active carriers”, may thus be viewed as true nanoreactors that open new ways for the use of nanoparticles in catalysis. In this review, we give a survey on recent work done on these hybrids and their application in catalysis. The aim of this review is threefold: we first review hybrid systems composed of nanoparticles and thermosensitive networks and compare these “active carriers” to other colloidal and polymeric carriers (e.g. dendrimers). In a second step we discuss the model reactions used to obtain precise kinetic data on the catalytic activity of nanoparticles in various carriers and environments. These kinetic data allow us to present a fully quantitative comparison of different nanoreactors. In a final section we shall present the salient points of recent efforts in the theoretical modeling of these nanoreactors. By accounting for the presence of a free-energy landscape for the reactants’ diffusive approach towards the catalytic nanoparticle, arising from solvent-reactant and polymeric shell-reactant interactions, these models are capable of explaining the emergence of all the important features observed so far in studies of nanoreactors. The present survey also suggests that such models may be used for the design of future carrier systems adapted to a given reaction and solvent.
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Affiliation(s)
- Rafael Roa
- Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , 14109 Berlin , Germany
| | - Stefano Angioletti-Uberti
- Department of Materials , Imperial College London , London SW72AZ , UK
- Beijing Advanced Innovation Centre for Soft Matter Science and Engineering , Beijing University of Chemical Technology , 100099 Beijing , P.R. China
| | - Yan Lu
- Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , 14109 Berlin , Germany
| | - Joachim Dzubiella
- Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , 14109 Berlin , Germany
- Institut für Physik , Humboldt-Universität zu Berlin , 12489 Berlin , Germany
| | - Francesco Piazza
- Université d’Orleans , Centre de Biophysique Moléculaire , CNRS-UPR4301, 45071 Orléans , France
| | - Matthias Ballauff
- Soft Matter and Functional Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH , 14109 Berlin , Germany
- Institut für Physik , Humboldt-Universität zu Berlin , 12489 Berlin , Germany
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Chen H, Zheng X, Nicholas J, Humes ST, Loeb JC, Robinson SE, Bisesi JH, Das D, Saleh NB, Castleman WL, Lednicky JA, Sabo-Attwood T. Single-walled carbon nanotubes modulate pulmonary immune responses and increase pandemic influenza a virus titers in mice. Virol J 2017; 14:242. [PMID: 29273069 PMCID: PMC5741862 DOI: 10.1186/s12985-017-0909-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 12/08/2017] [Indexed: 02/02/2023] Open
Abstract
Background Numerous toxicological studies have focused on injury caused by exposure to single types of nanoparticles, but few have investigated how such exposures impact a host’s immune response to pathogen challenge. Few studies have shown that nanoparticles can alter a host’s response to pathogens (chiefly bacteria) but there is even less knowledge of the impact of such particles on viral infections. In this study, we performed experiments to investigate if exposure of mice to single-walled carbon nanotubes (SWCNT) alters immune mechanisms and viral titers following subsequent influenza A virus (IAV) infection. Methods Male C57BL/6 mice were exposed to 20 μg of SWCNT or control vehicle by intratracheal instillation followed by intranasal exposure to 3.2 × 104 TCID50 IAV or PBS after 3 days. On day 7 mice were euthanized and near-infrared fluorescence (NIRF) imaging was used to track SWCNT in lung tissues. Viral titers, histopathology, and mRNA expression of antiviral and inflammatory genes were measured in lung tissue. Differential cell counts and cytokine levels were quantified in bronchoalveolar lavage fluid (BALF). Results Viral titers showed a 63-fold increase in IAV in SWCNT + IAV exposed lungs compared to the IAV only exposure. Quantitation of immune cells in BALF indicated an increase of neutrophils in the IAV group and a mixed profile of lymphocytes and neutrophils in SWCNT + IAV treated mice. NIRF indicated SWCNT remained in the lung throughout the experiment and localized in the junctions of terminal bronchioles, alveolar ducts, and surrounding alveoli. The dual exposure exacerbated pulmonary inflammation and tissue lesions compared to SWCNT or IAV single exposures. IAV exposure increased several cytokine and chemokine levels in BALF, but greater levels of IL-4, IL-12 (P70), IP-10, MIP-1, MIP-1α, MIP-1β, and RANTES were evident in the SWCNT + IAV group. The expression of tlr3, ifnβ1, rantes, ifit2, ifit3, and il8 was induced by IAV alone but several anti-viral targets showed a repressed trend (ifits) with pre-exposure to SWCNT. Conclusions These findings reveal a pronounced effect of SWCNT on IAV infection in vivo as evidenced by exacerbated lung injury, increased viral titers and several cytokines/chemokines levels, and reduction of anti-viral gene expression. These results imply that SWCNT can increase susceptibility to respiratory viral infections as a novel mechanism of toxicity. Electronic supplementary material The online version of this article (10.1186/s12985-017-0909-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Hao Chen
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Xiao Zheng
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Justine Nicholas
- Department of Physiological Sciences, 1333 Center Drive, Box 100144, Gainesville, FL, 32610, USA
| | - Sara T Humes
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Julia C Loeb
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Sarah E Robinson
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Joseph H Bisesi
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Dipesh Das
- Department of Department of Civil, Architectural, and Environmental Engineering, University of Texas Austin, Austin, TX, 78712, USA
| | - Navid B Saleh
- Department of Department of Civil, Architectural, and Environmental Engineering, University of Texas Austin, Austin, TX, 78712, USA
| | - William L Castleman
- Department of Infectious Diseases and Pathology, PO Box 110880, Gainesville, FL, 32611, USA
| | - John A Lednicky
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA
| | - Tara Sabo-Attwood
- Department of Environmental and Global Health, Center for Environmental and Human Toxicology and Emerging Pathogens Institute, University of Florida, 2187 Mowry Road, Box 110885, Gainesville, FL, 32611, USA.
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Aich N, Masud A, Sabo-Attwood T, Plazas-Tuttle J, Saleh NB. Dimensional Variations in Nanohybrids: Property Alterations, Applications, and Considerations for Toxicological Implications. NANOSTRUCTURE SCIENCE AND TECHNOLOGY 2017. [DOI: 10.1007/978-3-319-59662-4_9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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