Use of PVP-coated magnetite nanoparticles to ameliorate oil toxicity to an estuarine meiobenthic copepod and stimulate the growth of oil-degrading bacteria

Alabresm, Amjed; Mirshahghassemi, Seyyedali; Chandler, G. Thomas; Decho, Alan W.; Lead, Jamie R.

doi:10.1039/c7en00257b

Cited by 11 publications

(12 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Natural organic matter has been shown to provide additional colloidal stability through replacement of original coatings and subsequent electrosteric repulsion (Diegoli et al ), as well as additional charge repulsion. However, sterically stabilized NMs are prone to aggregation at higher concentrations (Alabresm et al ), usually significantly higher than likely environmental concentrations, possibly due to polymer entanglement and bridging mechanisms.…”

Section: Environmental Fate and Behavior Of Nmsmentioning

confidence: 99%

Nanomaterials in the environment: Behavior, fate, bioavailability, and effects—An updated review

Lead

Batley

Alvarez

et al. 2018

Environmental Toxicology and Chemistry

498

250

View full text Add to dashboard Cite

The present review covers developments in studies of nanomaterials (NMs) in the environment since our much cited review in 2008. We discuss novel insights into fate and behavior, metrology, transformations, bioavailability, toxicity mechanisms, and environmental impacts, with a focus on terrestrial and aquatic systems. Overall, the findings were that: 1) despite substantial developments, critical gaps remain, in large part due to the lack of analytical, modeling, and field capabilities, and also due to the breadth and complexity of the area; 2) a key knowledge gap is the lack of data on environmental concentrations and dosimetry generally; 3) substantial evidence shows that there are nanospecific effects (different from the effects of both ions and larger particles) on the environment in terms of fate, bioavailability, and toxicity, but this is not consistent for all NMs, species, and relevant processes; 4) a paradigm is emerging that NMs are less toxic than equivalent dissolved materials but more toxic than the corresponding bulk materials; and 5) translation of incompletely understood science into regulation and policy continues to be challenging. There is a developing consensus that NMs may pose a relatively low environmental risk, but because of uncertainty and lack of data in many areas, definitive conclusions cannot be drawn. In addition, this emerging consensus will likely change rapidly with qualitative changes in the technology and increased future discharges.

show abstract

Section: Environmental Fate and Behavior Of Nmsmentioning

confidence: 99%

Nanomaterials in the environment: Behavior, fate, bioavailability, and effects—An updated review

Lead

Batley

Alvarez

et al. 2018

Environmental Toxicology and Chemistry

498

250

View full text Add to dashboard Cite

show abstract

“…None on copepod mortality up to 25 mg/L [93] NF: data not found; natural seawater (NSW); artificial seawater (ASW). In the following sections, we describe the characteristics of these classes of ENMs designed for marine nanoremediation and their ecotoxicological assessment, when available, using the marine organisms belonging to the classification reported in Figure 3, and the exposure conditions mimicking the marine environment.…”

Section: Amphiascus Tenuiremismentioning

confidence: 98%

“…This finding underlines the possibility of a merged application that includes nanoremediation and microbial bioremediation for in situ treatments. The acute toxicity of PVP-Fe 3 O 4 NMs has been tested in the copepod Amphiascus tenuiremis demonstrating that the optimal concentration for oil removal did not affect copepod survival [ 93 ]. However, the toxicity of the optimal concentration for metal removal and the chronic toxicity have not been yet evaluated.…”

Section: Enms Employed For Marine Environment Remediation and Theimentioning

confidence: 99%

“…However, the toxicity of the optimal concentration for metal removal and the chronic toxicity have not been yet evaluated. PVP-coatedFe 3 O 4 NMs can be produced by a simple and cost-effective method of hydrothermal synthesis, which requires no organic solvents, low toxic reactants, and low temperature/energy [ 93 , 119 ]. This feature, along with the demonstrated effectiveness at the lab-scale and the absence of acute toxicity, encourages future experiments at a larger scale and an ecotoxicological assessment that includes different levels of biological organization and chronic exposure.…”

Section: Enms Employed For Marine Environment Remediation and Theimentioning

confidence: 99%

See 1 more Smart Citation

The Era of Nanomaterials: A Safe Solution or a Risk for Marine Environmental Pollution?

et al. 2021

View full text Add to dashboard Cite

In recent years, the application of engineered nanomaterials (ENMs) in environmental remediation gained increasing attention. Due to their large surface area and high reactivity, ENMs offer the potential for the efficient removal of pollutants from environmental matrices with better performances compared to conventional techniques. However, their fate and safety upon environmental application, which can be associated with their release into the environment, are largely unknown. It is essential to develop systems that can predict ENM interactions with biological systems, their overall environmental and human health impact. Until now, Life-Cycle Assessment (LCA) tools have been employed to investigate ENMs potential environmental impact, from raw material production, design and to their final disposal. However, LCA studies focused on the environmental impact of the production phase lacking information on their environmental impact deriving from in situ employment. A recently developed eco-design framework aimed to fill this knowledge gap by using ecotoxicological tools that allow the assessment of potential hazards posed by ENMs to natural ecosystems and wildlife. In the present review, we illustrate the development of the eco-design framework and review the application of ecotoxicology as a valuable strategy to develop ecosafe ENMs for environmental remediation. Furthermore, we critically describe the currently available ENMs for marine environment remediation and discuss their pros and cons in safe environmental applications together with the need to balance benefits and risks promoting an environmentally safe nanoremediation (ecosafe) for the future.

show abstract

“…There is a gap in the datasets and predictive models, which might cause obstacles in the toxicity assessment of nano-mixtures by using the in silico approach. To provide readers with a picture of the currently available datasets and predictive models of nano-mixture toxicity, in this review, we collected and curated 183 studies [ 10 , 11 , 13 , 14 , 15 , 16 , 17 , 18 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ,…”

Section: Introductionmentioning

confidence: 99%

Status Quo in Data Availability and Predictive Models of Nano-Mixture Toxicity

Trinh

Kim

2021

Nanomaterials

View full text Add to dashboard Cite

Co-exposure of nanomaterials and chemicals can cause mixture toxicity effects to living organisms. Predictive models might help to reduce the intensive laboratory experiments required for determining the toxicity of the mixtures. Previously, concentration addition (CA), independent action (IA), and quantitative structure–activity relationship (QSAR)-based models were successfully applied to mixtures of organic chemicals. However, there were few studies concerning predictive models for toxicity of nano-mixtures before June 2020. Previous reviews provided comprehensive knowledge of computational models and mechanisms for chemical mixture toxicity. There is a gap in the reviewing of datasets and predictive models, which might cause obstacles in the toxicity assessment of nano-mixtures by using in silico approach. In this review, we collected 183 studies of nano-mixture toxicity and curated data to investigate the current data and model availability and gap and to derive research challenges to facilitate further experimental studies for data gap filling and the development of predictive models.

show abstract

Use of PVP-coated magnetite nanoparticles to ameliorate oil toxicity to an estuarine meiobenthic copepod and stimulate the growth of oil-degrading bacteria

Abstract: A new nanomaterial composed of polyvinylpyrrolidone coated iron oxide was successfully used to remediate toxicity of oil-contaminated seawater.

Cited by 11 publications

References 35 publications

Nanomaterials in the environment: Behavior, fate, bioavailability, and effects—An updated review

Nanomaterials in the environment: Behavior, fate, bioavailability, and effects—An updated review

The Era of Nanomaterials: A Safe Solution or a Risk for Marine Environmental Pollution?

Status Quo in Data Availability and Predictive Models of Nano-Mixture Toxicity

Contact Info

Product

Resources

About