Young's equilibrium contact angle on rough solid surfaces. Part I. An empirical determination

Schulze, R.‐D.; Possart, Wulff; Kamusewitz, H.; Bischof, C.

doi:10.1163/156856189x00038

Cited by 70 publications

(31 citation statements)

References 12 publications

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“…Few investigators have related the Effect of surface roughness on cell adhesion influence of surface roughness on wettability. [13][14][15][16][17] We found that surface roughness increased the dispersive component Ͳs LW of SFE to an upper level independent Regarding cell adhesion, both cell types had similar behavior (Fig. 6).…”

Section: Effect Of Surface Roughness On Migration Areamentioning

confidence: 99%

“…Previous work reported an effect of surface hydroxyethyl methacrylate copolymers 3 ; the surface roughness on the contact angle, the increase or detopography, a property relevant to titanium implants crease of which depended on its initial value. [14][15][16][17][18] Therewhich affects human osteoblast differentiation, proliffore, a material surface treatment might enable the eration, and matrix production 4 as well as human ginadaptation of its surface free energy to biological regival fibroblast morphology, orientation, and proliferaquirements. tion by interfering in the assembly of the focal adhesion…”

Section: Introductionmentioning

confidence: 99%

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Correlation between substratum roughness and wettability, cell adhesion, and cell migration

Lampin

Warocquier-Clérout

Legris

et al. 1997

J. Biomed. Mater. Res.

711

439

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Cell adhesion and spreading of chick embryo vascular and corneal explants grown on rough and smooth poly (methyl methacrylate) (PMMA) were analyzed to test the cell response specificity to substratum surface properties. Different degrees of roughness were obtained by sand-blasting PMMA with alumina grains. Hydrophilic and hydrophobic components of the surface free energy (SFE) were calculated according to Good-van Oss's model. Contact angles were determined using a computerized angle meter. The apolar component of the SFE gamma s(LW), increased with a slight roughness whereas the basic component, gamma s-, decreased. The acido-basic properties disappeared as roughness increased. Incubation of PMMA in culture medium, performed to test the influence if the biological environment, allowed surface adsorption of medium proteins which annihilated roughness effect and restored hydrophilic properties. An organotypic culture assay was carried out in an attempt to relate the biocompatibility to substratum surface state. Cell migration was calculated from the area of cell layer. Cellular adhesion was determined by measuring the kinetic of release of enzymatically dissociated cells. A slight roughness raised the migration are to an upper extent no matter which cell type. Enhancement of the cell adhesion potential was related to the degree of roughness and the hydrophobicity.

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Section: Effect Of Surface Roughness On Migration Areamentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Correlation between substratum roughness and wettability, cell adhesion, and cell migration

Lampin

Warocquier-Clérout

Legris

et al. 1997

J. Biomed. Mater. Res.

711

439

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show abstract

“…On the contrary, a very few cases of experimental trials dealing with the subject of equilibrium state in contact angle measurements are present in our knowledge in literature [19][20][21][22][23][24], while many other papers deal with the argument of experimental hysteresis [25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

An Experimental Procedure to Obtain the Equilibrium Contact Angle from the Wilhelmy Method

Volpe¹,

Maniglio

Siboni

et al. 2001

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Une méthode expérimentale pour mesurer l'angle de contact d'équilibre avec la technique de Wilhelmy -La théorie des angles de contact a été développée en utilisant le concept d'angle de Young, une relation d'équilibre établie pour des surfaces complètement lisses et homogènes ; sur surfaces réelles, on considère habituellement que l'on peut obtenir des états « métastables » d'équilibre dans lesquels la forme du ménisque le long de la ligne à trois phases n'est pas complètement équivalente à celle du ménisque d'équilibre. Dans cet article, nous présentons une nouvelle méthode d'obtention de l'angle de contact d'équilibre par une simple modification de la microbalance de Wilhelmy. L'apport d'énergie acoustique au liquide à une fréquence capable de provoquer la formation résonante d'ondes capillaires, suivi par la réduction de l'amplitude de la vibration, permet au ménisque de bouger et de passer de sa forme métastable, d'avancée ou de recul, à celle d'équilibre stable. Ce résultat paraît être essentiellement indépendant des conditions initiales ; il a été possible de confirmer la théorie selon laquelle les barrières d'énergie entre états métastables loin de l'équilibre sont plus faibles que celles à l'équilibre. L'équation qui met en relation le cosinus de l'angle de contact d'équilibre et la moyenne arithmétique des cosinus des angles d'avancée et de recul a été confirmée pour des surfaces homogènes, mais elle a été réfutée dans le cas de surfaces macroscopiquement hétérogènes. Cette méthode paraît par ailleurs prometteuse par sa simplicité et son faible coût.

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“…However, it is not the only reason. It is well known if the surface roughness is less than 100 nm it can not be the reason for the contact angle hysteresis [26]. There are numerous well documented experimental confirmation of the existence of the hysteresis of contact angle on smooth enough and homogeneous surfaces [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].…”

Section: Hysteresis Of Contact Angle On Smooth Homogeneous Solid Subsmentioning

confidence: 99%

Wetting Phenomena and Nanoforces

Starov¹

2010

Surfactant Science

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Young's equilibrium contact angle on rough solid surfaces. Part I. An empirical determination

Cited by 70 publications

References 12 publications

Correlation between substratum roughness and wettability, cell adhesion, and cell migration

Correlation between substratum roughness and wettability, cell adhesion, and cell migration

An Experimental Procedure to Obtain the Equilibrium Contact Angle from the Wilhelmy Method

Wetting Phenomena and Nanoforces

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