Contact angle and line tension dependence on curvature

Navascués, G.; Tarazona, P.

doi:10.1016/0009-2614(81)85446-2

Cited by 22 publications

(6 citation statements)

References 7 publications

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“…In general, curvature effects can be neglected when the drop's radius is larger than its penetration thickness [13]. The penetration thickness reflects the amount that the droplet moves into the material.…”

Section: Surface Roughness Cleanliness and Curvaturementioning

confidence: 99%

Physicochemical Surface Properties of Various Intraocular Lenses

Dick¹,

Frohn²,

Augustin³

et al. 2001

Ophthalmic Res

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Purpose: It is of major interest to understand how intraocular lens (IOL) surfaces interact with aqueous humor or tissues after implantation. Important parameters to describe the physicochemical surface properties are the contact angle and critical surface tension. Therefore, we performed measurements of the contact angle and critical surface tension of several commercially available IOLs. Setting: Department of Ophthalmology, Johannes Gutenberg University, Mainz, University Eye Hospital, Tübingen, and Max Planck Institute for Polymer Research, Mainz, Germany. Methods: A total of 17 commercially available standard quality IOL types (6 of each) of different materials from several manufacturers were studied. Scanning electron microscopy and contact angle measurements using the sessile drop method were made. Results: The sessile drop method differentiated all materials based on their surface forces. The contact angle (mean ± SD) ranged from 56.5 ± 3.8b 3Conclusion: Contact angles differed between the IOLs depending on the IOL material with the lowest contact angle in the heparin-surface-modified IOL. The contact angle measurement method generates useful information about the material surface and its potential biomaterial interactions.

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Section: Surface Roughness Cleanliness and Curvaturementioning

confidence: 99%

Physicochemical Surface Properties of Various Intraocular Lenses

Dick¹,

Frohn²,

Augustin³

et al. 2001

Ophthalmic Res

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“…Indeed, it has been shown theoretically [4,5] that a large line tension may induce a wetting transition (in this Letter we take the term "wetting transition" to refer to both continuous and discontinuous changes in wetting state). We note that the available experimental data for line tensions [6][7][8][9][10][11] show a wide range of possible values and that, although theoretical studies have considered various aspects of the line tension problem [12][13][14][15][16][17], as far as the authors are aware, there have been no molecular simulation estimates of the line tension.…”

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confidence: 93%

Computer Simulation Study of the Wetting Behavior and Line Tensions of Nanometer Size Particulates at a Liquid-Vapor Interface

1998

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We study the behavior of nanometer size particulates at a liquid-vapor interface by means of molecular dynamics simulations. We propose a methodology for computing the line tension using computer simulations, and present new data for the wetting of particulates at a planar liquid-vapor interface, as a function of particulate size. For the sizes considered in this work the line tension is negative and influences the wetting behavior of particulates at the liquid-vapor interface. [S0031-9007(98)

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“…If, however, one of the “bulk” phases is finite, then the line tension is expected to become size dependent for sufficiently small phase size. Finite-size line tension effects for liquid droplets at a solid–vapor interface have been the subject of extensive theoretical discussions; − however, evidence for such an effect has proven elusive. Numerical studies , and an experiment may provide indications of a finite-size line tension effect.…”

Section: Introductionmentioning

confidence: 99%

Finite-Size and Solvent Dependent Line Tension Effects for Nanoparticles at the Air–Liquid Surface

2017

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The line tension for a nanoparticle (NP) at the air-liquid surface can be determined by examining the variation in NP solution surface tension with bulk NP concentration. In this publication the variation in line tension with liquid solvent is examined for the homologous series of liquids from n-decane through to n-octadecane. Finite-size line tension effects are also studied by examining the variation in line tension with NP size for NPs at the air-octadecane surface. Both the line tension variation with solvent and NP size can be qualitatively explained using an interface displacement model for the line tension.

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Contact angle and line tension dependence on curvature

Cited by 22 publications

References 7 publications

Physicochemical Surface Properties of Various Intraocular Lenses

Physicochemical Surface Properties of Various Intraocular Lenses

Computer Simulation Study of the Wetting Behavior and Line Tensions of Nanometer Size Particulates at a Liquid-Vapor Interface

Finite-Size and Solvent Dependent Line Tension Effects for Nanoparticles at the Air–Liquid Surface

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