Biotoxicity of nickel oxide nanoparticles and bio-remediation by microalgae Chlorella vulgaris

Gong, Ning; Shao, Kuishuang; Feng, Wei; Lin, Zhengzhi; Liang, Changhua; Sun, Yeqing

doi:10.1016/j.chemosphere.2010.12.059

Cited by 211 publications

(97 citation statements)

References 22 publications

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“…This suggests that more soluble protein was present in the low-dosage treated algae than the control, which may relate to de nova protein synthesis, and that can play an important role in the adaptation reaction of algal cells under NMs treatment. Gong et al (2011) found that maximum soluble protein content occurred at 72 h and the maximum ratio of reduction of Ni presented synchronously. The reduction from nNiO to nNi may lead to weakened toxicity, so it has been proposed that some unknown enzymes of the algae play essential roles in that process, which contributes to adaptation reaction of algal cells under metal oxide NM stress.…”

Section: Discussionmentioning

confidence: 89%

“…Wei et al (2010) indicate that the direct contact between f-MWNT and algal cell surface (algal cell/nanoparticles aggregation) was likely responsible for reduced PSII functional cross section and oxidative stress during exponential growth. Gong et al (2011) found that there was noticeable algal cell/NiO aggregation which may cause a reduction in the light available to those cells and thus inhibiting their growth. Recent research also showed that nanoalumina can promote the horizontal transfer of multiresistance genes mediated by plasmids across genera (Qiu et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Toxicological effects of nanometer titanium dioxide (nano-TiO2) on Chlamydomonas reinhardtii

Chen¹,

Zhou²,

Liu³

et al. 2012

Ecotoxicology and Environmental Safety

161

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Section: Discussionmentioning

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Toxicological effects of nanometer titanium dioxide (nano-TiO2) on Chlamydomonas reinhardtii

Chen¹,

Zhou²,

Liu³

et al. 2012

Ecotoxicology and Environmental Safety

161

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“…Similarly, Cu/CuO, Fe 2 O 3 /Fe 3 O 4 , and NiO also caused some toxicity at all tested concentrations. Some studies indicated toxicity at concentrations less than 10 mg L -1 (Aruoja et al 2009;García et al 2011;Griffitt et al 2007Griffitt et al , 2008Heinlaan et al 2008), while others indicated toxicity at far greater concentrations (e.g., Baek and An 2011;Blinova et al 2010;Gong et al 2011;Horie et al 2009;.…”

Section: Toxicitymentioning

confidence: 99%

“…Most NPs are largely stable in freshwater and stormwater with some aggregation observed for Al 2 O 3 (Pakrashi et al 2012), NiO (Gong et al 2011), nZVI Saleh et al 2008a, b), and SWCNTs (Bennett et al 2013;Wang et al 2008a, b). Sorption and change in electrophoretic mobility have been shown to occur on exposure of NOM to metal and metal oxide NPs (Fabrega et al 2009).…”

Section: Aggregation In Watermentioning

confidence: 99%

Emerging patterns for engineered nanomaterials in the environment: a review of fate and toxicity studies

2014

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A comprehensive assessment of the environmental risks posed by engineered nanomaterials (ENMs) entering the environment is necessary, due in part to the recent predictions of ENM release quantities and because ENMs have been identified in waste leachate. The technical complexity of measuring ENM fate and transport processes in all environments necessitates identifying trends in ENM processes. Emerging information on the environmental fate and toxicity of many ENMs was collected to provide a better understanding of their environmental implications. Little research has been conducted on the fate of ENMs in the atmosphere; however, most studies indicate that ENMs will in general have limited transport in the atmosphere due to rapid settling. Studies of ENM fate in realistic aquatic media indicates that in general, ENMs are more stable in freshwater and stormwater than in seawater or groundwater, suggesting that transport may be higher in freshwater than in seawater. ENMs in saline waters generally sediment out over the course of hours to days, leading to likely accumulation in sediments. Dissolution is significant for specific ENMs (e.g., Ag, ZnO, copper ENMs, nano zero-valent iron), which can result in their transformation from nanoparticles to ions, but the metal ions pose their own toxicity concerns. In soil, the fate of ENMs is strongly dependent on the size of the ENM aggregates, groundwater chemistry, as well as the pore size and soil particle size. Most groundwater studies have focused on unfavorable deposition conditions, but that is unlikely to be the case in many natural groundwaters with significant ionic strength due to hardness or salinity. While much still needs to be better understood, emerging patterns with regards to ENM fate, transport, and exposure combined with emerging information on toxicity indicate that risk is low for most ENMs, though current exposure estimates compared with current data on toxicity indicates that at current production and release levels, exposure to Ag, nZVI, and ZnO may cause toxicity to freshwater and marine species.

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“…They concluded that the presence of released ionic Ni and attachment of aggregates to the surface of algal cell was responsible for the toxic effects. Their XRD analysis indicated that some NiO NPs were transformed to reduced species, such as zero-valent Ni [41]. Kaegi et al presented the evidence for the release of synthetic NPs, such as TiO 2 into the aquatic environment from urban applications.…”

Section: X-ray Diffractionmentioning

confidence: 99%

Instrumental approach toward understanding nano-pollutants

Naghdi

Metahni

Ouarda

et al. 2017

Nanotechnol. Environ. Eng.

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Nano-pollutants (NPLTs) have recently raised global concerns due to their possible harmful impact on environment and human health. However, until date, information on the occurrence, fate and toxicity of NPLTs in environment is scant. The knowledge gap can be attributed to the lack of advanced and sophisticated methodologies for the precise detection and characterization of NPLTs at lower concentration in complex matrices, such as surface water, wastewater, soil and food. This review briefly discusses the performance of classical methods for characterization and study of the properties of NPLTs. The important properties include shape, size, aggregation state, chemical composition and structure. Chromatographic, microscopic and spectroscopic techniques have been developed for detection and quantitative estimation of fabricated or naturally existed NPLTs in different matrices. Often, combination of these techniques is required for the separation, purification and accurate estimation. For better detection and understanding of the initial steps of interaction with the environmental matrices, pollution sources, such as wastewater and industrial discharges, must be selected as sampling points. Understanding the dynamics of agglomeration, and decantation will allow to estimate the plume of transport to delimit the potential effects.

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Biotoxicity of nickel oxide nanoparticles and bio-remediation by microalgae Chlorella vulgaris

Cited by 211 publications

References 22 publications

Toxicological effects of nanometer titanium dioxide (nano-TiO2) on Chlamydomonas reinhardtii

Toxicological effects of nanometer titanium dioxide (nano-TiO2) on Chlamydomonas reinhardtii

Emerging patterns for engineered nanomaterials in the environment: a review of fate and toxicity studies

Instrumental approach toward understanding nano-pollutants

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