2014 In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting layer in a binary liquid mixture are investigated. We also report experimental observations in support of our theory, in the critical binary liquid mixture cyclohexane + acetonitrile. J. Physi...

Complete wetting is a universal phenomenon associated with interfaces separating coexisting phases. For example, in the pure gluon theory , at T c an interface separating two distinct high-temperature de-confined phases splits into two confined-deconfined interfaces with a complete wetting layer of confined phase between them. In supersym-metric Yang-Mills theory, distinct confined phases may c...

Tin foil and SnOx/C gas-diffusions electrodes (GDEs) were investigated via electrochemical impedance spectroscopy (EIS) to extract the differential double-layer capacitance (Cdl) as a measure of wetted surface area. Time-dependent Cdl values revealed an immediate stationary wetting for tin while distinct increase – which becomes with time was observed GDEs. The time-dependent behavior GDEs subs...

The (pre)wetting behavior of an annealed polyelectrolyte (PE) brush by an electrolyte solution that is strongly segregated from an apolar phase is analyzed. In this complex interface, there are interactions on various length scales. There are short-range interactions with the (uncharged) surface, and there are interactions on the length scale of the brush height. Using either the ionic strength...

Wetting properties of biomaterials, in particular nanomaterials, play an important role, as these influence interactions with biological elements, such as proteins, bacteria, and cells. In this study, the wetting phenomenon of titanium substrates coated with selenium nanoparticles was studied using experimental and mathematical modeling tools. Importantly, these selenium-coated titanium substra...

Qualitative changes in the local (pore level) wetting e&ciency of a porous catalyst as a function of catalyst wettability are proposed based on monitoring the 1-D motion of the solid-liquid-gas contact line. As catalyst wettability is increased, the resulting wetting e&ciency is likely to show two distinct transitions viz., (1) a sudden decrease that is inspired by coalescence of neighboring ri...

1. The penetration of sodium sulphacetaamide into the ocular tissues has been studied, both in living'rabbits and in isolated ocular tissues. 2. Application of the drug with a wetting agent, Duponal ME dry, increases the penetration of sodium sulphacetamide into and through the cornea. 3., Removal of the corneal epithelium causes a great increase in the penetration of the sulphonamide into antd...

We present a theoretical study of wetting phenomena and interactions between liquid–vapor interfaces based on the local density functional theory. The focus is mostly on the impact of longrange van der Waals interactions both within the fluid and between the fluid and substrate. For the latter, we consider two models – hard wall and soft wall approximations – differing by the role of steric eff...

Wetting presents in two forms, enuresis and incontinence. Enuresis is defined as wetting when no underlying anatomical or functional abnormality of the urinary tract can be detected. A diagnosis of incontinence implies the presence of an underlying anomaly that requires investigation and treatment. However, the diagnosis of incontinence in children is not simple. When an adult presents with wet...