Environmental impacts of nanomaterials

Kabir, Ehsanul; Kumar, Vanish; Kim, Ki‐Hyun; Yip, Alex C.K.; Sohn, Jong–Ryeul

doi:10.1016/j.jenvman.2018.07.087

Cited by 182 publications

(64 citation statements)

References 92 publications

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“…Unfortunately, environmental impact is often biased by the methodology of a particular experiment (Paterson et al 2011). Especially, Kabir et al (2018) in their recent review on environmental impact of nanomaterials clearly indicate that the toxic effects of NMs should be assessed by more objective means. The latter should fully ensure high comparability and transferability of results.…”

Section: Introductionmentioning

confidence: 99%

Cerium Oxide Nanoparticles Affect Heavy Metals Uptake by Pea in a Divergent Way than Their Ionic and Bulk Counterparts

Skiba

Wolf

2019

Water Air Soil Pollut

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The impact of cerium oxide nanoparticles, bulk cerium oxide and ionic cerium nitrate on the plant development as well as the uptake and further translocation of Cu, Mn, Zn and Fe by sugar pea (Pisum sativum L.) was investigated. Plants were cultivated in the laboratory pot experiments using the modified Hoagland solutions supplemented with cerium compounds at the 200 mg L −1 Ce level. Analysis of variance proved that cerium oxide nanoparticles significantly decreased Cu, Mn, Zn and Fe concentrations in roots and above ground parts of the pea plants. The latter ions are presumably transported via symplastic pathways and may compete with nanoparticles for similar carriers. The lowest impact on the plant growth and the metal uptake was observed under the bulk CeO 2 treatment. On the contrary, strongest interactions were observed for supplementation with ionic cerium nitrate. The highly beneficial effect of cerium oxide nanoparticles on the plant growth was not supported by this study. The latter conclusion is of particular relevance when environmental impact of cerium compounds on the waste management, municipal urban low emissions and food production is to be concerned.

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Section: Introductionmentioning

confidence: 99%

Cerium Oxide Nanoparticles Affect Heavy Metals Uptake by Pea in a Divergent Way than Their Ionic and Bulk Counterparts

Skiba

Wolf

2019

Water Air Soil Pollut

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“…Due to strongly size‐dependent physical and chemical properties, nanomaterials have attracted increasing interest . Several fluorescence methods have been developed based on the applications of nanomaterials in both extracellular and intracellular detection of telomerase activity.…”

Section: Fluorescence Assaymentioning

confidence: 99%

Advances in optical assays for detecting telomerase activity

et al. 2019

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Telomerase uses its RNA as template and its protein unit as reverse transcriptase to synthesize TTAGGG repeats at the ends of the eukaryotic chromosome to maintain the lengths of telomeres. Telomerase activity up-regulates in about 85% of human tumors compared with somatic cells, which indicates that telomerase is a tumor biomarker. Reliable assay of telomerase activity is thus essential in diagnosis and management of malignant tumors. In this review, recent developed optical assays are summarized based on the readout signal, including chemiluminescence assay, colorimetric assay, and fluorescence assay.

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“…However, giving the increasing progress in nanotechnology, there isn't enough information about the effects on human health. Another issue is that nanomaterials cannot be yet detected in the environment and, this can result in different types of environmental problems (KABIR et al, 2018).…”

Section: Potential Risks To the Environmentmentioning

confidence: 99%

Applications of Nanotechnology in Water Treatment

Machado

Rodrigues

Feksa

et al. 2019

RCO

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The industrial contamination, along with domestic effluents, agricultural and urban runoff are contaminating rivers and making it difficult for conventional water treatment to remove all the pollutants. This contamination can impact in the quality of rivers, in the quality of life of aquatic animals and can impact in the human health through the consumption of water. In order to improve the water quality, nanotechnology has been studied as an alternative to better remove contaminants, such as, heavy metals, oily water separation and antimicrobial activity. Besides, with the increase in industrialization along with the contamination of rivers, seawater could be an interesting alternative for drinking water source after adequate treatment. Nanomaterials are being studied as a possibility to remove salt from seawater, making it possible to drink. Howerver, there is a need to elucidate the potential risks to the environemt that these nanomaterials can cause. Therefore, the aim of this review is to describe some applications of nanotechnology in water treatment regarding metals, oil removal from water, antimicrobial activity and desalination in order to improve water quality, as well, as discuss their potential risk to the environment. RESUMOA contaminação industrial, juntamente com efluentes domésticos, agricultura e escoamento urbano, estão contaminando os rios e dificultando para os tratamentos de água convencionais removerem todos os poluentes. Esta contaminação pode impactar na qualidade dos rios, na qualidade de vida dos animais marinhos e pode impactar na saúde humana através do consumo de água. Com a finalidade de melhorar a qualidade da água, a nanotecnologia tem sido estudada como uma alternativa para melhor remover os poluentes, como, metais pesados, separar óleo da água e atividade antimicrobiana. Além disso, com o aumento da industrialização juntamente com a contaminação dos rios, a água do mar poderia ser uma alternativa interessante como fonte de água potável após o tratamento adequado. Nanomateriais estão sendo estudado como uma possibilidade para remover o sal da água do mar, tornando-a possível de ser ingerida. Entretanto, há a necessidade de elucidar os potenciais riscos para o meio ambiente que estes nanomateriais podem causar. Sendo assim, o objetivo deste artigo de revisão é descrever algumas aplicações da nanotecnologia no tratamento de água em relação à remoção de metais e óleo da água, atividade antimicrobiana e a dessalinização a fim de melhorar a qualidade da água, assim como, discutir os potenciais riscos para o meio ambiente. Palavras-chave: Atividade antimicrobiana. Contaminação da água. Nanotecnologia. Poluentes. Riscos ambientais.

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Environmental impacts of nanomaterials

Cited by 182 publications

References 92 publications

Cerium Oxide Nanoparticles Affect Heavy Metals Uptake by Pea in a Divergent Way than Their Ionic and Bulk Counterparts

Cerium Oxide Nanoparticles Affect Heavy Metals Uptake by Pea in a Divergent Way than Their Ionic and Bulk Counterparts

Advances in optical assays for detecting telomerase activity

Applications of Nanotechnology in Water Treatment

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