Results 241 to 250 of about 55,929 (294)

Robust functional nanohybrid surface enables long-term oily wastewater remediation. [PDF]

Nano Converg
Chen Z, Zhou X, Zhang H, Xue Y, Mazlan NA, Chen S, Wei X, Chen X, Huang Y.   +8 more
europepmc   +1 more source

Novel Core-Shell Nanostructure of <i>ε</i>-Poly-L-lysine and Polyamide-6 Polymers for Reusable and Durable Antimicrobial Function. [PDF]

Polymers (Basel)
Purandare S, Li R, Xiang C, Song G.
europepmc   +1 more source

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Electrically Mediated Static Contact Angle and Hysteresis of Polyelectrolyte Solutions

Langmuir, 2023
Manipulating a droplet by electrowetting-on-dielectric (EWOD) is vital in various fields ranging from industrial applications to life sciences. As of now, EWOD research has focused primarily on aqueous electrolytes and ionic liquids. This paper investigates the electrowetting behavior of weak polyelectrolyte solutions containing poly(acrylic acid) (PAA)
Sumit Kumar, Patrick Martin, Gleb Vasilyev, Eyal Zussman   +3 more
openaire   +2 more sources

Microscopic studies of static and dynamic contact angles

Journal of Adhesion Science and Technology, 1993
Molecular dynamics simulations are used to test macroscopic theories for static and dynamic contact angles. Young's equation is verified by comparing observed static contact angles to angles calculated from the independently measured surface tensions between phases. Laplace's relation between the interfacial curvature and pressure is also checked. Both
Peter A. Thompson, W.B. Brinckerhoff, Mark O. Robbins   +2 more
openaire   +1 more source

Drop Impact on Soft Surfaces: Beyond the Static Contact Angles

Langmuir, 2009
The wettability of cross-linked poly(dimethylsiloxane) elastomer films and of octadecyltrichlorosilane self-assembled monolayers with water has been measured and compared using various methods. Contact angle hysteresis values were compared with values reported in the literature.
Romain, Rioboo, Michel, Voué, Helena, Adão, Joséphine, Conti, Alexandre, Vaillant, David, Seveno, Joël, De Coninck   +6 more
openaire   +2 more sources

Static contact angle in lattice Boltzmann models of immiscible fluids

Physical Review E, 2005
We study numerically the capillary rise between two horizontal plates and in a rectangular tube, using a lattice Boltzmann (LB) method. We derive an equation for the static fluid-solid contact angle as a function of the wetting tendency of the walls and test its validity.
M, Latva-Kokko, Daniel H, Rothman
openaire   +2 more sources

The effects of static contact angles on standing waves

Physics of Fluids A: Fluid Dynamics, 1992
Damping rates and natural frequencies of the fundamental axisymmetric mode in circular cylinders were measured when the contact angle between the water and the side walls was acute, obtuse, and about π/2. Damping rates decreased with increasing contact angle; natural frequencies increased with increasing contact angle.
D. Henderson, J. Hammack, P. Kumar, D. Shah   +3 more
openaire   +1 more source

Static and dynamic contact angles of water on photoresist

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 2005
Fluid management issues in an immersion lithography system include the retention of the liquid (i.e., prevention of residual liquid on the wafer) and the possible entrainment of gas bubbles within the immersion fluid. Three key parameters strongly influence the control of fluid within the lens gap: the static liquid/resist contact angle, the contact ...
H. Burnett, T. Shedd, G. Nellis, C. Van Peski   +3 more
openaire   +1 more source

Static and dynamic contact angles – A phase field modelling

The European Physical Journal Special Topics, 2009
We propose a scheme for studying static and dynamic contact angles using a phase field model. The theoretical description is based on the Navier-Stokes equation with extra phase field terms and the continuity equation. In this model free of interface conditions, the contact angle can be controlled through the boundary conditions for the density field ...
R. Borcia, I. D. Borcia, M. Bestehorn
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Static and dynamic contact angles of evaporating liquids on heated surfaces

Journal of Colloid and Interface Science, 2010
We studied both static and dynamic values of the apparent contact angle for gravity-driven flow of a volatile liquid down a heated inclined plane. The apparent contact line is modeled as the transition region between the macroscopic film and ultra-thin adsorbed film dominated by disjoining pressure effects. Four commonly used disjoining pressure models
Vladimir S, Ajaev, Tatiana, Gambaryan-Roisman, Peter, Stephan   +2 more
openaire   +2 more sources