Ecotoxicology of Nanomaterials in Aquatic Systems

Jennings, Victoria; Goodhead, Rhys M.; Tyler, Charles R.

doi:10.1016/b978-0-08-099948-7.00001-4

Cited by 10 publications

(6 citation statements)

References 177 publications

(152 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Standard aquatic toxicity assays using pelagic organisms (e.g., Daphnia magna , Danio rerio ) have demonstrated a range of potential environmental impacts depending on the types of engineered nanomaterials (ENMs) considered, with some being toxic at low concentrations when considered over a chronic exposure but many not toxic until very high unrealistic concentrations . However, most pristine ENMs are not stable in aqueous exposure conditions, and thus many studies on pelagic organisms largely assume exposure to the stable fraction of ENMs left behind in the water column after a majority settles out. , Testing for impacts of ENMs on benthic organisms is therefore extremely important, in certain cases perhaps more important than impacts on pelagic organisms, as many ENMs are expected to settle and concentrate to higher exposure concentrations in sediment. , Despite this, the preponderance of aquatic nanotoxicology research has focused on exposures to pelagic organisms …”

Section: Introductionmentioning

confidence: 99%

“…2,3 Testing for impacts of ENMs on benthic organisms is therefore extremely important, in certain cases perhaps more important than impacts on pelagic organisms, as many ENMs are expected to settle and concentrate to higher exposure concentrations in sediment. 3,4 Despite this, the preponderance of aquatic nanotoxicology research has focused on exposures to pelagic organisms. 3 Most ENM toxicity studies have also focused on firstgeneration materials, including metal nanoparticles, Au and Ag, and metal oxide nanoparticles, TiO 2 , ZnO, and CeO 2 , 5 as they have demonstrated potential for the highest use.…”

Section: ■ Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Next-Generation Complex Metal Oxide Nanomaterials Negatively Impact Growth and Development in the Benthic Invertebrate Chironomus riparius upon Settling

Niemuth

Curtis

Hang

et al. 2019

Environ. Sci. Technol.

View full text Add to dashboard Cite

Most studies of nanomaterial environmental impacts have focused on relatively simple first-generation nanomaterials, including metals or metal oxides (e.g., Ag, ZnO) for which dissolution largely accounts for toxicity. Few studies have considered nanomaterials with more complex compositions, such as complex metal oxides, which represent an emerging class of next-generation nanomaterials used in commercial products at large scales. Importantly, many nanomaterials are not colloidally stable in aqueous environments and will aggregate and settle, yet most studies use pelagic rather than benthic-dwelling organisms. Here we show that exposure of the model benthic species Chironomus riparius to lithium cobalt oxide (Li x Co1–x O2, LCO) and lithium nickel manganese cobalt oxide (Li x Ni y Mn z Co1–y–z O2, NMC) at 10 and 100 mg·L–1 caused 30–60% declines in larval growth and a delay of 7–25 d in adult emergence. A correlated 41–48% decline in larval hemoglobin concentration and related gene expression changes suggest a potential adverse outcome pathway. Metal ions released from nanoparticles do not cause equivalent impacts, indicating a nanospecific effect. Nanomaterials settled within 2 days and indicate higher cumulative exposures to sediment organisms than those in the water column, making this a potentially realistic environmental exposure. Differences in toxicity between NMC and LCO indicate compositional tuning may reduce material impact.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Next-Generation Complex Metal Oxide Nanomaterials Negatively Impact Growth and Development in the Benthic Invertebrate Chironomus riparius upon Settling

Niemuth

Curtis

Hang

et al. 2019

Environ. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…On the other hand, the potential environmental impacts associated with the application of nanopesticides have also been raised as concerns. Particularly, the accumulation of nanomaterials in the environment could cause potential ecotoxicity and human toxicity. , However, these toxicological effects were mainly found in short-term experiments at high concentrations, which significantly exceeded the environmental realistic concentrations. ,, Studies have also demonstrated that low concentrations of nanomaterials may have no effects or even positive effects on non-target organisms (e.g., enriched biodiversity) . Therefore, future research should assess the environmental impacts of nanopesticides along their life cycle and focus on long-term field experiments with low concentrations of nanopesticides to address it more realistically environmentally.…”

Section: Resultsmentioning

confidence: 99%

Efficacy-Associated Cost Analysis of Copper-Based Nanopesticides for Tomato Disease Control

Liu

Yang

Hermanowicz

et al. 2022

ACS Agric. Sci. Technol.

View full text Add to dashboard Cite

Tomato poses the second-largest acreage among vegetables worldwide; however, its yields are severely lowered by more than 200 diseases. Compared to the conventional pesticides’ high ecosystem risks, nanopesticides have emerged as an alternative with higher efficacy. Nevertheless, a systematic investigation on the efficacy and the associated cost analysis of nanopesticides and conventional pesticides is yet to be done, which is essential to evaluate the application of nanopesticides. Thus, we used Cu-based pesticides for controlling tomato disease as a case study to explore the efficacy and cost trade-offs between nano- and conventional analogues. Ten peer-reviewed papers were fully studied, and we extracted data on indicators, including percent efficacy of disease control (PEDC), active ingredients (AIs), concentration, application volume, application method of pesticides, and plant biomass. The material efficiency (i.e., dosages of pesticides applied per plant per unit efficacy) and cost-effectiveness (i.e., cost of pesticides applied per plant per unit efficacy) were calculated for comparative analysis. The findings indicated that the efficacy of Cu-based nanopesticides improved by 16–20%, with 4.3-fold material efficiency enhancement compared to conventional analogues, suggesting that Cu-based nanopesticides significantly reduced application dosages (i.e., using ∼1/5 dosages of conventional analogues) to achieve equivalent efficacy. In addition, Cu-based nanopesticides could promote plant biomass by approximately 40% more than conventional pesticides under diseases. CuO, Cu(OH)2, and GO–Cu nanopesticides could reduce cost per unit efficacy by 46.6, 11.6, and 46.8–83.4%, respectively. The size, shape, chemical composition, dosage, and application method of nanopesticides were revealed to be significant determinants of nanopesticides’ efficacy using an ordinary least squares model. Our quantitative results identified the extent of advantages that Cu-based nanopesticides have over conventional products from technological efficacy and economic perspectives. This efficacy–cost study is the key evaluation prior to large-scale application of nanopesticides, contributing to the development of nanopesticides, the enhancement of crop production, and agricultural sustainability.

show abstract

“…Risk assessment of engineered nanomaterials for aquatic organisms has been undertaken for quite some time [ 112 , 113 ]. Jenning et al [ 114 ] reviewed the degradation of nanomaterials in aquatic systems, and detailed the available information on ecotoxicity for a range of organisms in both freshwater and marine environments.…”

Section: Discussionmentioning

confidence: 99%

Hazard Assessment of the Effects of Acute and Chronic Exposure to Permethrin, Copper Hydroxide, Acephate, and Validamycin Nanopesticides on the Physiology of Drosophila: Novel Insights into the Cellular Internalization and Biological Effects

Demir

Kansız

Doğan

et al. 2022

IJMS

View full text Add to dashboard Cite

New insights into the interactions between nanopesticides and edible plants are required in order to elucidate their impacts on human health and agriculture. Nanopesticides include formulations consisting of organic/inorganic nanoparticles. Drosophila melanogaster has become a powerful model in genetic research thanks to its genetic similarity to mammals. This project mainly aimed to generate new evidence for the toxic/genotoxic properties of different nanopesticides (a nanoemulsion (permethrin nanopesticides, 20 ± 5 nm), an inorganic nanoparticle as an active ingredient (copper(II) hydroxide [Cu(OH)2] nanopesticides, 15 ± 6 nm), a polymer-based nanopesticide (acephate nanopesticides, 55 ± 25 nm), and an inorganic nanoparticle associated with an organic active ingredient (validamycin nanopesticides, 1177 ± 220 nm)) and their microparticulate forms (i.e., permethrin, copper(II) sulfate pentahydrate (CuSO4·5H2O), acephate, and validamycin) widely used against agricultural pests, while also showing the merits of using Drosophila—a non-target in vivo eukaryotic model organism—in nanogenotoxicology studies. Significant biological effects were noted at the highest doses of permethrin (0.06 and 0.1 mM), permethrin nanopesticides (1 and 2.5 mM), CuSO4·5H2O (1 and 5 mM), acephate and acephate nanopesticides (1 and 5 mM, respectively), and validamycin and validamycin nanopesticides (1 and 2.5 mM, respectively). The results demonstrating the toxic/genotoxic potential of these nanopesticides through their impact on cellular internalization and gene expression represent significant contributions to future nanogenotoxicology studies.

show abstract

Ecotoxicology of Nanomaterials in Aquatic Systems

Cited by 10 publications

References 177 publications

Next-Generation Complex Metal Oxide Nanomaterials Negatively Impact Growth and Development in the Benthic Invertebrate Chironomus riparius upon Settling

Next-Generation Complex Metal Oxide Nanomaterials Negatively Impact Growth and Development in the Benthic Invertebrate Chironomus riparius upon Settling

Efficacy-Associated Cost Analysis of Copper-Based Nanopesticides for Tomato Disease Control

Hazard Assessment of the Effects of Acute and Chronic Exposure to Permethrin, Copper Hydroxide, Acephate, and Validamycin Nanopesticides on the Physiology of Drosophila: Novel Insights into the Cellular Internalization and Biological Effects

Contact Info

Product

Resources

About