A superhydrophobic and anti-icing surface was prepared by consecutive immersion in boiling water and sputtering of polytetrafluoroethylene on the surface of an aluminium alloy substrate. The immersion time in boiling water plays an important role on the surface morphology and water repellency of the deposited RF-sputtered Teflon coating. The Teflon-like coating deposited on a rough surface achi...

Recent progress in simulating the properties of interfacial water at hard hydrophobic and hydrophilic surfaces is reviewed and compared to results for the air/water interface. The authors discuss static properties such as the equilibrium contact angle, the depletion layer thickness, and the orientation of interfacial water molecules. Relations between these properties, e.g., the relation betwee...

Das, Basanta Kumar, Ji GanG Kim, and Ji Weon Choi, 2011. edge browning and microbial quality of fresh-cut iceberg lettuce with different sanitizers and contact times. Bulg. J. Agric. Sci., 17: 55-62 This study was conducted to evaluate the effect of different washing solutions and contact times on the cut edge browning and microbial quality of fresh-cut iceberg lettuce. samples were cut into sm...

The produced liquid water in the cathode catalyst layer (CCL) has a signi cant effect on the operation of a proton exchange membrane fuel cell (PEMFC). To investigate this effect, the transport of oxygen in the CCL in the presence of immiscible liquid water is studied by applying a two-dimensional pore scale model. The CCL was reconstructed as an agglomerated system. To explore the wettability...

The resonant modes of sessile water drops on a hydrophobic substrate subjected to a small-amplitude lateral vibration are investigated using computational fluid dynamic (CFD) modeling. As the substrate is vibrated laterally, its momentum diffuses within the Stokes layer of the drop. Above the Stokes layer, the competition between the inertial and Laplace forces causes the formation of capillary...

Many biological interfaces provide low friction aqueous lubrication through the generation and maintenance of a high water content polymeric surface gel. The lubricity of such gels is often attributed to their high water content, high water permeability, low elastic modulus, and their ability to promote a water film at the sliding interface. Such biological systems are frequently characterized ...

An experimental study on the underlying mechanisms of structured super-hydrophobic surfaces was recently published [ Butt, H.-J.; et al. How Water Advances on Superhydrophobic Surfaces. Phys. Rev. Lett. 2016, 116, 096101 . DOI: 10.1103/PhysRevLett.116.096101 ]. After depositing small drops of water, Butt's group inclined their surfaces to initiate movement. They examined the contact between the...

A water droplet in contact with a platinum surface was simulated by the molecular dynamics method. Water molecules were modeled with the well-known SPC/E model and the platinum surface was represented by three layers of harmonic molecules with the constant temperature heat bath model using the phantom molecules. Two types of water-platinum pair potential functions based on extended Hückel calcu...

A method has been developed to infer the wettability of steam-water-rock systems based on the relationship between permeability and capillary pressure by Purcell. The Purcell model was extended to two-phase flow to verify whether the wettability is a function of water saturation. The results calculated using the experimental data showed that the wettability index in drainage was greater than th...

Using molecular dynamics simulations, we show that the evaporation of nanoscale water on hydrophobic-hydrophilic patterned surfaces is unexpectedly faster than that on any surfaces with uniform wettability. The key to this phenomenon is that, on the patterned surface, the evaporation rate from the hydrophilic region only slightly decreases due to the correspondingly increased water thickness; m...