Results 261 to 270 of about 23,852 (302)

Electrokinetics on superhydrophobic surfaces

Journal of Physics: Condensed Matter, 2012
On a superhydrophobic surface a liquid is exposed to a large air-water interface. The reduced wall friction is expected to cause a higher electro-osmotic mobility. On the other hand, the low charge density of a superhydrophobic surface reduces the electro-osmotic mobility.
Papadopoulos, P., Deng, X., Vollmer, D., Butt, H.   +3 more
openaire   +3 more sources

Superhydrophobicity from the Inside

Langmuir, 2017
The nature of trapped air on submersed ultra-water-repellent interfaces has been investigated. These gaseous layers (plastrons) can last from hours to, in some examples such as the Salvinia molesta fern, months. The interface of submerged superhydrophobic surfaces with carefully controlled micropatterned surface roughness has been probed using ...
Tomer Simovich, Cameron Ritchie, George Belev, David M. L. Cooper, Robert N. Lamb   +4 more
openaire   +2 more sources

Superhydrophobicity and Superhydrophilicity of Regular Nanopatterns [PDF]

Nano Letters, 2005
The hydrophilicity, hydrophobicity, and sliding behavior of water droplets on nanoasperities of controlled dimensions were investigated experimentally. We show that the "hemi-wicking" theory for hydrophilic SiO(2) samples successfully predicts the experimental advancing angles and that the same patterns, after silanization, become superhydrophobic in ...
Martines, Elena, Seunarine, Kris, Morgan, Hywel, Gadegaard, Nikolaj, Wilkinson, Chris DW, Riehle, Mathis O   +5 more
openaire   +2 more sources

Superhydrophobic immersion

Applied Physics Letters, 2023
Non-wetting solids have been extensively studied for about 20 years due to the spectacular mobility they provide to water drops. However, they have other noteworthy properties: For instance, such materials immersed in water entrain a plastron of air, a phenomenon exploited by many creatures to hunt or breathe underwater.
Coux, Martin, Mathis, Adrien, Delannoy, Joachim, Mouterde, Timothée, Quéré, David   +4 more
openaire   +3 more sources

Superhydrophobic Fibrous Polymers

Polymer Reviews, 2013
Superhydrophobicity coming from the appropriate structuration, morphology, and low surface energy material, is a more and more demanded property in many fields. Especially superhydrophobic fibers are interesting because of their re-entrant structure and their potential applications in apparel.
Wolfs, Mélanie, Darmanin, Thierry, Guittard, Frédéric   +2 more
openaire   +1 more source

Hydrophobic and Superhydrophobic Polyphosphazenes

Journal of Adhesion Science and Technology, 2009
Polyphosphazenes are a class of hybrid organic–inorganic polymers that have good solubility in classical organic solvents and are thermo-oxidatively stable. Over the years, poly(dichlorophosphazene) has been used as a macromolecular intermediate to yield a number of polymers which can be hydrophobic or superhydrophobic.
H. R. Allcock, L. Steely, M. Hindenlang, A. Singh   +3 more
openaire   +1 more source

Superhydrophobic cellulose nanocomposites

Journal of Colloid and Interface Science, 2008
Superhydrophobic cellulose nanocomposites were prepared using a multi-step nanoengineering process. The combination of different techniques made it possible to construct novel features at the ensuing surface, characterized by both an increase in its roughness induced by amorphous silica particles and a reduction in its energy insured by perfluoro ...
Goncalves, Gil, Marques, Paula A. A. P., Trindade, Tito, Neto, Carlos Pascoal, Gandini, Alessandro   +4 more
openaire   +3 more sources

Superhydrophobic Coatings for Microdevices

Journal of Adhesion Science and Technology, 2008
We have developed two simple techniques to impart superhydrophobic properties to the surfaces of microdevices. In the first approach, thin films of a fluoropolymer were spin-coated on the device surfaces followed by an oxygen plasma treatment. By varying the oxygen plasma treatment time, the water contact angles on device surface could be tuned from ...
J.-Y. Shiu, W.-T. Whang, P. Chen
openaire   +1 more source

Fabrication Of Superhydrophobic Surfaces

Journal of Adhesion Science and Technology, 2008
Superhydrophobicity has recently drawn a great deal of attention from both fundamental and practical application points of view. This paper summarizes the basic principles involved in creation of superhydrophobicity and reviews the diverse methods recently developed to make superhydrophobic surfaces and coatings.
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BIOMIMETIC SUPERHYDROPHOBIC SURFACES

2014
Inspiration from nature has been widely used in the development of new materials and in the improvement of their properties. Superhydrophobic surfaces inspired in species present in nature with highly water repellent self-cleaning properties — such as the well-known lotus leaf — are interesting examples of the biomimetic approach for the development of
Oliveira, Mariana B., Mano, J. F.
openaire   +2 more sources