Toxicity and Environmental Risks of Nanomaterials: Challenges and Future Needs

Ray, Paresh Chandra; Yu, Hongtao; Fu, Peter P.

doi:10.1080/10590500802708267

Cited by 712 publications

(340 citation statements)

References 188 publications

(123 reference statements)

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“…Thus, it takes a high density of nanoparticles to see SERS. But biologically, nanoparticles have been shown to have toxic effects in live plants and they can bind with molecules resulting in chemical changes in the plant (4).…”

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confidence: 99%

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Altangerel

Ariunbold

Gorman

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

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confidence: 99%

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Altangerel

Ariunbold

Gorman

et al. 2017

Proc. Natl. Acad. Sci. U.S.A.

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“…Nanomatter penetration into the environment and the specific activity can cause degradation effects [5]. Accordingly, there is a need of broader studies on the characteristics of the nanoparticles, both in terms of their physicochemical properties and biological activity [6].…”

Section: Discussionmentioning

confidence: 99%

Environmental Aspects of Using Nanomaterials

Banach

Pulit-Prociak

2017

JAPLR

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The paper presents the nanotechnology as a one of main fields of modern science. Since nanotechnology accompanies the everyday life, one should focus on its benefits and disadvantages. Some nanoparticles exhibit animicrobial properties and using them definitely improves the quality of life. Silver nanoparticles are used in many consumer products which serve as antibacterial or antifungal agents. However, due to the fact that the market of nanomaterials is constantly growing, most of living organisms may be exposed on nanoparticles. Silver nanoparticles may be easily accumulated in various organs, such as liver, kidneys, lungs and others. Despite the fact that their activity may not be seen immediately, their impact on living matter may have negative consequences in the future. Hazard and responses issues are raised in the review.

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“…[42][43][44][45] Hence prior to assessing the cytotoxicity of the Group 5t ransition metal ditellurides, characterisation of the materials was necessary and was carried out through scanninge lectron microscopy (SEM), scanningt ransmission electron microscopy (STEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), and dynamic light scattering (DLS).…”

Section: Materials Characterisationmentioning

confidence: 99%

Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe₂; M=V, Nb, Ta)

Chia

Latiff

Sofer

et al. 2017

Chemistry A European J

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Much research effort has been put in to study layered compounds with transition metal dichalcogenides (TMDs) being one of the most studied compounds. Due to their extraordinary properties such as excellent electrochemical properties, tuneable band gaps, andlow shear resistance due to weak van derW aals interactions betweenl ayers, TMDs have been found to have wide applicationss uch as electrocatalysts for hydrogen evolution reactions, supercapacitors, biosensors, field-effect transistors (FETs), photovoltaics, and lubricant additives. In very recent years, Group 5t ransition metal ditellurides have received an immense amount of research attention.H owevert od ate, little has been known of the potentialt oxicities posed by these materials. As such, we conducted the cytotoxicity study by incubating various concentrations of the Group 5t ransition metal ditellurides (MTe 2 ;M= V, Nb,T a) with human lung carcinoma epithelial A549 cells for 24 hours and the remaining cell viabilities after treatment was measured. Our findings indicate that VTe 2 is highlyt oxic whereas NbTe 2 and TaTe 2 are deemed to exhibit mild toxicities. This study constitutes an exemplary first step towards the understanding of the Group 5t ransition metal ditellurides' toxicitye ffects in preparation for their possible future commercialisation. IntroductionEver since the first isolation of graphene from graphite by Novoselove tal. in 2004, [1] two-dimensional (2D) nanomaterials have gained intensiveacademic and industrial research interest due to their extraordinarya nd unique properties. To date, a vast range of 2D nanomaterials have been reported;s uch examplesi nclude transition metal dichalcogenides( TMDs), graphitic carbon nitride (g-C 3 N 4 ), black phosphorus, and hexagonal boron nitride (h-BN). [2][3][4][5][6][7][8] Among2 Dn anomaterials, TMDs are deemed to be one of the most studied layered compounds due to their extraordinary electrochemical properties. [9][10][11][12] TMDs have ag eneral chemical formula of MX 2 ,w hereby M represents at ransition metal (for instance Ti,V ,N b, Ta,M o, W, and so on) of a + 4o xidation state and Xi sachalcogen (S, Se, or Te)w ith a À2o xidation state . [9,13,14] Different permutations of thesee lements give rise to approximately6 0d ifferent TMDs, where two-thirds of these compounds are reported to assumel ayereds tructures. Generally,t ransition metals from Groups4 -7 generate compounds that are predominantly layered while some Group 8-10 transition metals give rise to three-dimensional crystal compounds. [14][15][16] Many TMDs possess al ayered structure akin to graphite, and within one layer of TMDs,t he transition metal is sandwiched between two chalcogens, hence resulting in the MX 2 stoichiometry.I th as been reported that the bonds within each layer are covalent, whereas the bonds between two different MX 2 layersa re typicallyh eld by van der Waals forces of interactions, thus allowing exfoliation of TMDs down to single layers. [9,[13][14][15][17][18][19] The unique and advantageous...

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Toxicity and Environmental Risks of Nanomaterials: Challenges and Future Needs

Cited by 712 publications

References 188 publications

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Environmental Aspects of Using Nanomaterials

Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe₂; M=V, Nb, Ta)

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Toxicity and Environmental Risks of Nanomaterials: Challenges and Future Needs

Cited by 712 publications

References 188 publications

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Reply to Dong and Zhao: Plant stress via Raman spectroscopy

Environmental Aspects of Using Nanomaterials

Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe2; M=V, Nb, Ta)

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Product

Resources

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Cytotoxicity of Group 5 Transition Metal Ditellurides (MTe₂; M=V, Nb, Ta)