The effect of engineered iron nanoparticles on growth and metabolic status of marine microalgae cultures

Kádár, Enikõ; Rooks, Paul; Lakey, Cara; White, Daniel A.

doi:10.1016/j.scitotenv.2012.09.010

Cited by 130 publications

(67 citation statements)

References 36 publications

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“…The considerable bioavailability of nanoparticles (Johnston et al 2010) supports the hypothesis that they may be a more favourable source of trace elements (Kadar et al 2012) than the bulk analogues to improve the life functions of various organisms. Hong et al (2005) demonstrated that TiO 2 nanoparticles (n-TiO 2 ) markedly increased the growth of spinach seeds by stimulating photosynthesis.…”

Section: Introductionmentioning

confidence: 71%

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Trace concentrations of iron nanoparticles cause overproduction of biomass and lipids during cultivation of cyanobacteria and microalgae

et al. 2014

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Cultivation in Zehnder medium containing 5.1 mg L −1 zero-valent iron nanoparticles (nZVI) boosted the growth of the green algae Desmodesmus subspicatus, Dunaliella salina, Parachlorella kessleri and Raphidocelis subcapitata and the eustigmatophycean algae Nannochloropsis limnetica and Trachydiscus minutus. In the cyanobacterium Arthrospira maxima, growth stimulation occurred at 1.7-5.1 mg L −1 nZVI. In all studied microorganisms, 5.1 mg L −1 nZVI strongly enhanced lipid accumulation, decreased the content of saturated and monounsaturated fatty acids with the exception of palmitoleic acid and increased the content of polyunsaturated fatty acids in cells. The nZVI particles may provide a suitable source of iron causing increased cell growth and induce metabolic changes resulting in higher lipid production and changes in fatty acid (FA) composition. Altered lipid synthesis may reflect the oxidative action of nZVI. Further research may contribute to optimizing the economical production of oils from oleaginous microorganisms and help clarify the mechanism of nZVI action.

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Section: Introductionmentioning

confidence: 71%

“…The main problems to have been discussed are associated with their toxicity against exposed organisms (Nel et al 2006). However, some recent studies have also dealt with the possible positive effects of these materials on cell growth or metabolic activity (Hong et al 2005;Kadar et al 2012;Mahajan et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Trace concentrations of iron nanoparticles cause overproduction of biomass and lipids during cultivation of cyanobacteria and microalgae

et al. 2014

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“…However, despite the low cost and high efficiency of Fe 0 NPs in removing contaminants, [1][2][3][4][5][6] there are concerns that Fe 0 NP application contributes to long-term impacts on environmental and human health risks. [7][8][9][10][11][12][13][14][15][16][17] Moreover, the increasing use of Fe 0 NPs in in situ groundwater remediation could lead to large numbers of NPs released into the environment and is highly likely to pose potential exposure risks. 8 Several studies have indicated that Fe 0 NPs could cause cytotoxicity in human bronchial epithelial cells.…”

Section: Introductionmentioning

confidence: 99%

“…7,17,20 Inhibition in embryo development, mortality of spermatozoa, and declines in fertilization in embryos were observed in marine microalgae in response to Fe 0 NP exposure. 12 Li et al 21 indicated that FeNPs disturbed defense systems in embryos of medaka fish. Chen et al 14 further found that Fe 0 NPs had significant adverse effects on heart rates and eye sizes in early stages of medaka fish.…”

Section: Introductionmentioning

confidence: 99%

Toxicity-based toxicokinetic/toxicodynamic assessment of bioaccumulation and nanotoxicity of zerovalent iron nanoparticles in <em>Caenorhabditis elegans</em>

Yang¹,

Lin²,

Liao³

2017

IJN

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Elucidating the relationships between the toxicity-based-toxicokinetic (TBTK)/toxicodynamic (TD) properties of engineered nanomaterials and their nanotoxicity is crucial for human health-risk analysis. Zerovalent iron (Fe 0 ) nanoparticles (NPs) are one of the most prominent NPs applied in remediating contaminated soils and groundwater. However, there are concerns that Fe 0 NP application contributes to long-term environmental and human health impacts. The nematode Caenorhabditis elegans is a surrogate in vivo model that has been successfully applied to assess the potential nanotoxicity of these nanomaterials. Here we present a TBTK/TD approach to appraise bioaccumulation and nanotoxicity of Fe 0 NPs in C. elegans . Built on a present C. elegans bioassay with estimated TBTK/TD parameters, we found that average bioconcentration factors in C. elegans exposed to waterborne and food-borne Fe 0 NPs were ~50 and ~5×10 −3 , respectively, whereas 10% inhibition concentrations for fertility, locomotion, and development, were 1.26 (95% CI 0.19–5.2), 3.84 (0.38–42), and 6.78 (2.58–21) μg·g −1 , respectively, implicating that fertility is the most sensitive endpoint in C. elegans . Our results also showed that biomagnification effects were not observed in waterborne or food-borne Fe 0 NP-exposed worms. We suggest that the TBTK/TD assessment for predicting NP-induced toxicity at different concentrations and conditions in C. elegans could enable rapid selection of nanomaterials that are more likely to be nontoxic in larger animals. We conclude that the use of the TBTK/TD scheme manipulating C. elegans could be used for rapid evaluation of in vivo toxicity of NPs or for drug screening in the field of nanomedicine.

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“…Liu et al reported a growth promoting effect of FeCl3-EDTA on Chlorella vulgaris [10]. The effect of 10 mg L −1 iron nanoparticles (Total Fe concentration <1.4 × 10 −5 M) on the growth and metabolic status of various marine microalgae such as Pavlova lutheri, Isochrysis galbana, and Tetraselmis suecica has been investigated [11]. Iron binding at the cell surface has been reported to be a critical step in the uptake mechanism of marine microalgae [12].…”

Section: Introductionmentioning

confidence: 99%

Growth promotion effect of steelmaking slag onSpirulina platensis

Nogami

Tam

Anh

et al. 2016

J. Phys.: Conf. Ser.

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Abstract.A growth promotion effect of steelmaking slag on Spirulina platensis M135 was investigated. The growth promotion effect was obtained that was 1.27 times greater than that obtained by the control by adding 500 mg L −1 of steelmaking slag and culturing for 60 days. The lipid content decreased in a concentration-dependent manner with steelmaking slag, whereas the carbohydrate content remained constant. The protein content of S. platensis M135 increased in a concentration-dependent manner with steelmaking slag when cultured at day 45. The superoxide dismutase activity of S. platensis M135 exhibited a decreasing trend in a timedependent manner and an increasing trend in the control. The superoxide dismutase activity was lower than that of the control at day 1 but was higher at day 30. No genetic damage was observed up to 500 mg L −1 of steelmaking slag at 30 days of culture. Recovery from genetic damage was observed at 1,000 mg L −1 of steelmaking slag but not at higher concentrations.

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The effect of engineered iron nanoparticles on growth and metabolic status of marine microalgae cultures

Cited by 130 publications

References 36 publications

Trace concentrations of iron nanoparticles cause overproduction of biomass and lipids during cultivation of cyanobacteria and microalgae

Trace concentrations of iron nanoparticles cause overproduction of biomass and lipids during cultivation of cyanobacteria and microalgae

Toxicity-based toxicokinetic/toxicodynamic assessment of bioaccumulation and nanotoxicity of zerovalent iron nanoparticles in <em>Caenorhabditis elegans</em>

Growth promotion effect of steelmaking slag onSpirulina platensis

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