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Wetting on axially-patterned heterogeneous surfaces

, : Wetting on axially-patterned heterogeneous surfaces. Advances in Colloid and Interface Science 138(2): 84-100

Contact angle variability, leading to errors in interpretation, arises from various sources. Contact angle hysteresis (history-dependent wetting) and contact angle multiplicity (corrugation of three-phase contact line) are irrespectively the most frequent causes of this uncertainty. Secondary effects also derived from the distribution of chemical defects on solid surfaces, and so due to the existence of boundaries, are the known "stick/jump-slip" phenomena. Currently, the underlying mechanisms in contact angle hysteresis and their connection to "stick/jump-slip" effects and the prediction of thermodynamic contact angle are not fully understood. In this study, axial models of smooth heterogeneous surface were chosen in order to mitigate contact angle multiplicity. For each axial pattern, advancing, receding and equilibrium contact angles were predicted from the local minima location of the system free energy. A heuristic model, based on the local Young equation for spherical drops on patch-wise axial patterns, was fruitfully tested from the results of free-energy minimization. Despite the very simplistic surface model chosen in this study, it allowed clarifying concepts usually misleading in wetting phenomena.


PMID: 18279819

DOI: 10.1016/j.cis.2007.12.002

Other references

Olatunbosun, D., 1974: Pricing policy and supply response in cocoa production: the Nigerian case. Economics of Cocoa Production and keting Proceedings Cocoa Economics Research Conference: ub 1974) 236-250

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Badawy, A.M.; E.K.tony, T.M.; Serag, M.S.; Mousa, M.A., 1996: Potentiality of Azolla filiculoides Lam. for nitrogen fixation and its use as a biofertilizer for rice. Fronds of the water fern A. filiculoides were grown under laboratory conditions on a nutrient solution containing 1 mM NO3- (+N) or one containing no nitrogen (-N). Growth of the fern was comparable in the nutrient solutions, implying that dinitro...

Yoshii, K.; Moore, L.E.; Christensen, B.N., 1988: Effect of subthreshold voltage-dependent conductances on the transfer function of branched excitable cells and the conduction of synaptic potentials. 1. Impulse response functions were determined from complex point impedance and transfer functions from cultured NG-108 cells to simulate the propagation of a synaptic potential in response to the release of transmitter. In general, the flow of syn...

Elliot W.R., 1971: Correa d. Australian Plants 6(48): 156-158

Kral R., 1973: Some notes on the flora of the southern states particularly alabama and middle tennessee. Rhodora 75(803): 366-410

Wang, H.; Jiang, J.; Liu, W.; Kubelik, D.; Chen, G.; Gies, D.; Garcia, B.; Zhong, R.; Rother, R.P., 2005: Prevention of acute vascular rejection by a functionally blocking anti-C5 monoclonal antibody combined with cyclosporine. Background. Inhibition of the complement cascade at C5 prevents formation of pro-inflammatory molecules C5a and C5b-9, which play a key role in allograft rejection. The present study was undertaken to determine whether blocking terminal complement...

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Greenblatt, H.; Adalsteinsson, O.K.gen, L., 1998: Administration to arthritis patients of a dietary supplement containing immune egg: an open-label pilot study. Journal of medicinal food(3): 171-179