C60: Buckminsterfullerene

Kroto, Harold W.; Heath, J. R.; O’Brien, S.; Curl, R. F.; Smalley, R. E.

doi:10.1038/318162a0

Cited by 15,466 publications

(7,483 citation statements)

References 5 publications

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“…Topology of Defective Graphene. Since the discovery of the fullerenes in the 1980s, 70 it has been known that nonhexagonal rings induce local Gaussian curvature in a graphene sheet. Pentagons lead to positive (spherical) and heptagons to negative (saddle-like) curvature.…”

Section: Defect Typesmentioning

confidence: 99%

Structural Defects in Graphene

2010

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Graphene is one of the most promising materials in nanotechnology. The electronic and mechanical properties of graphene samples with high perfection of the atomic lattice are outstanding, but structural defects, which may appear during growth or processing, deteriorate the performance of graphenebased devices. However, deviations from perfection can be useful in some applications, as they make it possible to tailor the local properties of graphene and to achieve new functionalities. In this article, the present knowledge about point and line defects in graphene are reviewed. Particular emphasis is put on the unique ability of graphene to reconstruct its lattice around intrinsic defects, leading to interesting effects and potential applications. Extrinsic defects such as foreign atoms which are of equally high importance for designing graphene-based devices with dedicated properties are also discussed.

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Section: Defect Typesmentioning

confidence: 99%

Structural Defects in Graphene

2010

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“…Since their discovery [1], unique interactions with biomolecules have been expected and also anticipated from the toxological point of view, because fullerenes have recently been synthesized on a large scale and many researchers have been exposed to them, mainly in the electrochemical field. There are a few interesting studies concerning the biological activities of water-soluble [60]fullerene (C60) derivatives such as DNA-cleaving activity [2] and HIV-1 inhibition activity [3,4].…”

Section: Introductionmentioning

confidence: 99%

Novel harmful effects of [60]fullerene on mouse embryos in vitro and in vivo

et al. 1996

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Abstract[60]Fullerene (C60) was solub'dized with poly(vinylpyrrolidone) (PVP) in water, and the aqueous solution was applied to a mouse midbrain cell differentiation system. On incubation of C60 with various concentrations of PVP, cell differentiation and proliferation were potently inhibited, although weaker than the vehicle controls. C60 was clearly distributed into the yolk sac and embryos by intraperitoneal administration to pregnant mice at 50 mghtg and had a harmful effect on both conceptuses by microscopical evaluation. This in vivo and in vitro action on embryogenesls is a novel and seriously harmful activity of C60.

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“…A famous example is C 60 . 24 Mass selected WO showed characteristic reactivity in the cracking of hydrocarbons. 18 Magicnumbered clusters such as W 13 -are especially stable and exhibit much larger relative abundances compared to the neighboring clusters.…”

Section: Introductionmentioning

confidence: 98%

Closed-Cage Tungsten Oxide Clusters in the Gas Phase

et al. 2010

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During the course of a study on the clustering of W-Se and W-S mixtures in the gas phase using laser desorption ionization (LDI) , stand out as intense peaks in the regular mass spectral pattern of tungsten oxide clusters suggesting unusual stabilities for them. Moreover, these clusters do not fragment in the postsource decay analysis. While trying to understand the precursor material, which produced these clusters, we found the presence of nanoscale forms of tungsten oxide. The structure and thermodynamic parameters of tungsten clusters have been explored using relativistic quantum chemical methods. Our computed results of atomization energy are consistent with the observed LDI mass spectra. The computational results suggest that the clusters observed have closed-cage structure. These distinct W 13 and W 14 clusters were observed for the first time in the gas phase.

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C60: Buckminsterfullerene

Cited by 15,466 publications

References 5 publications

Structural Defects in Graphene

Structural Defects in Graphene

Novel harmful effects of [60]fullerene on mouse embryos in vitro and in vivo

Closed-Cage Tungsten Oxide Clusters in the Gas Phase

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