Aqueous Electrolytes near Hydrophobic Surfaces:  Dynamic Effects of Ion Specificity and Hydrodynamic Slip†

Langmuir ◽  
2008 ◽  
Vol 24 (4) ◽  
pp. 1442-1450 ◽  
Author(s):  
David M. Huang ◽  
Cécile Cottin-Bizonne ◽  
Christophe Ybert ◽  
Lydéric Bocquet
Keyword(s):  
Aqueous Electrolytes ◽  
Dynamic Effects ◽  
Hydrophobic Surfaces ◽  
Ion Specificity ◽  
Hydrodynamic Slip

scholarly journals Anisotropic electro-osmotic flow over super-hydrophobic surfaces

2010 ◽  
Vol 644 ◽  
pp. 245-255 ◽  
Author(s):  
SUPREET S. BAHGA ◽  
OLGA I. VINOGRADOVA ◽  
MARTIN Z. BAZANT
Keyword(s):  
Double Layers ◽  
Patterned Surfaces ◽  
Hydrophobic Surfaces ◽  
Electrokinetic Phenomena ◽  
Flat Surfaces ◽  
Mobility Tensor ◽  
Special Cases ◽  
Hydrodynamic Slip ◽  
Effective Slip ◽  
Trapped Gas

Patterned surfaces with large effective slip lengths, such as super-hydrophobic surfaces containing trapped gas bubbles, have the potential to greatly enhance electrokinetic phenomena. Existing theories assume either homogeneous flat surfaces or patterned surfaces with thin double layers (compared with the texture correlation length) and thus predict simple surface-averaged, isotropic flows (independent of orientation). By analysing electro-osmotic flows over striped slip-stick surfaces with arbitrary double-layer thickness, we show that surface anisotropy generally leads to a tensorial electro-osmotic mobility and subtle, nonlinear averaging of surface properties. Interestingly, the electro-osmotic mobility tensor is not simply related to the hydrodynamic slip tensor, except in special cases. Our results imply that significantly enhanced electro-osmotic flows over super-hydrophobic surfaces are possible, but only with charged liquid–gas interfaces.

Dynamic effects and adhesion of water droplet impact on hydrophobic surfaces: bouncing or sticking

Nanoscale ◽  
2017 ◽  
Vol 9 (24) ◽  
pp. 8249-8255 ◽  
Author(s):  
Zhiguang Li ◽  
Que Kong ◽  
Xiaoyan Ma ◽  
Duyang Zang ◽  
Xinghua Guan ◽  
...  
Keyword(s):  
Water Droplet ◽  
Droplet Impact ◽  
Dynamic Effects ◽  
Hydrophobic Surfaces

Effect of networks on product innovation: empirical evidence from Indonesian SMEs

2013 ◽  
Vol 1 (2) ◽  
pp. 140-158 ◽  
Author(s):  
Nurul Indarti ◽  
Theo Postma
Keyword(s):  
Empirical Evidence ◽  
Product Innovation ◽  
Dynamic Effects ◽  
Depth Of Knowledge ◽  
External Knowledge ◽  
Software Firms ◽  
Using Data

Innovative companies generally establish linkages with other actors and access external knowledge in order to benefit from the dynamic effects of interactive processes. Using data from 198 furniture and software firms in Indonesia, this study shows that the quality of interaction (i.e. multiplexity) as indicated by the depth of knowledge absorbed from various external parties and intensity of interaction (i.e., tie intensity) are better predictors of product innovation than the diversity of interaction.

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