Modelling of surface energies of elemental crystals

Jiang, Q.; Lu, Haiming; Zhao, Muyu

doi:10.1088/0953-8984/16/4/001

Cited by 214 publications

(195 citation statements)

References 36 publications

(79 reference statements)

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“…The approach apparently improves the values of both of them [206]. We should prefer the definition of surface energy as the energy density in the surface skin.…”

Section: Mechanical Strengthmentioning

confidence: 94%

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Size dependence of nanostructures: Impact of bond order deficiency

Sun

2007

Progress in Solid State Chemistry

816

717

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“…The approach apparently improves the values of both of them [206]. We should prefer the definition of surface energy as the energy density in the surface skin.…”

Section: Mechanical Strengthmentioning

confidence: 94%

“…Neither of them could alone give satisfied predictions for g values in comparison with the experimental and theoretical results [195]. To obtain a more general expression, Jiang et al [206] assumed that an average of Eqs. (19) and (20) could make up the deficiency of each.…”

Section: Mechanical Strengthmentioning

confidence: 99%

Size dependence of nanostructures: Impact of bond order deficiency

Sun

2007

Progress in Solid State Chemistry

816

717

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“…The different broken translational symmetries with different facets and CN bring out the change of T c (D) with different extent in light of the classic broken-bond rule [129,130]. This is the case of T c (D) function of Fe nanocrystals shown in Fig.…”

Section: Verification Of T C (D) Functionmentioning

confidence: 94%

Size Dependence of Structures and Properties of Magnetic Materials

Jiang¹,

Lang²

2007

TONANOJ

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Due to the involvement of high portion of atomic coordination imperfection in surfaces and interfaces, the properties of magnetic nanocrystals dramatically differ from that of the corresponding bulk counterparts, which have led to a surge in both experimental and theoretical investigations in the past decades. This review summarizes the studies for these size-dependent magnetic properties, and additional thermal or phase stabilities, and mechanical properties. To interpret the above phenomena, a thermodynamic model for the size dependence and interface dependences of these properties is described, which is based on Lindemann s criterion for melting, Mott s expression for the vibrational melting entropy, and Shi s model for the size-dependent melting temperature. The model without any adjustable parameter is confirmed by a large number of experimental results, and helps us to understand the structures and properties of the magnetic nanocrystals. Moreover, other theoretical works on the above properties are also mentioned and commented.

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“…Given the relatively low difference in energy between the low index facets of gold, and the PVP coating, we deem this parameter to be of minimal consequence within the current experimental setting. 35 The presence of residual CTAB on the GNRs, as determined by quantitative 1 H-NMR (Table S1 †), is not surprising given the difficulty of removing this small ligand -a problem often highlighted by others. 22,36 However, the effective CTAB concentration in the exposure experiments is 2-7 nM corresponding to 20-50 molecules per GNR, or approximately 0.1% of a full CTAB bilayer.…”

Section: Shape-dependent Endocytosis Of Gold Nanorodsmentioning

confidence: 94%

Decoupling the shape parameter to assess gold nanorod uptake by mammalian cells

et al. 2016

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The impact of nanoparticles (NPs) upon biological systems can be fundamentally associated with their physicochemical parameters. A further often-stated tenet is the importance of NP shape on rates of endocytosis. However, given the convoluted parameters concerning the NP-cell interaction, it is experimentally challenging to attribute any findings to shape alone. Herein we demonstrate that shape, below a certain limit, which is specific to nanomedicine, is not important for the endocytosis of spherocylinders by either epithelial or macrophage cells in vitro. Through a systematic approach, we reshaped a single batch of gold nanorods into different aspect ratios resulting in near-spheres and studied their cytotoxicity, ( pro-)inflammatory status, and endocytosis/exocytosis. It was found that on a length scale of ∼10-90 nm and at aspect ratios less than 5, NP shape has little impact upon their entry into either macrophages or epithelial cells. Conversely, nanorods with an aspect ratio above 5 were preferentially endocytosed by epithelial cells, whereas there was a lack of shape dependent uptake following exposure to macrophages in vitro. These findings have implications both in the understanding of nanoparticle reshaping mechanisms, as well as in the future rational design of nanomaterials for biomedical applications.

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Modelling of surface energies of elemental crystals

Cited by 214 publications

References 36 publications

Size dependence of nanostructures: Impact of bond order deficiency

Size dependence of nanostructures: Impact of bond order deficiency

Size Dependence of Structures and Properties of Magnetic Materials

Decoupling the shape parameter to assess gold nanorod uptake by mammalian cells

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