In this contribution we study the wetting and nucleation of vapor bubbles on nanodecorated surfaces via free energy molecular dynamics simulations. The results shed light on the stability of superhydrophobicity in submerged surfaces with nanoscale corrugations. The re-entrant geometry of the cavities under investigation is capable of sustaining a confined vapor phase within the surface roughnes...

Combination of two physical phenomena, capillary pressure gradient and wettability gradient, allows a simple two-step fabrication process that yields a reliable hydrophobic self-cleaning condenser surface. The surface is fabricated with specific microscopic topography and further treatment with a chemically inert low-surface-energy material. This process does not require growth of nanofeatures ...

We investigated the influence of nanoscale pattern shapes, contours, and surface chemistry on wetting behavior using a combination of experimental and modeling approaches. Among the investigated topographical shapes, re-entrant geometries showed superior performance owing to their ability to restrain the liquid-air interface in accordance with Gibbs criteria. The wetting state is also controlle...

Condensation on superhydrophobic nanostructured surfaces offers new opportunities for enhanced energy conversion, efficient water harvesting, and high performance thermal management. These surfaces are designed to be Cassie stable and favor the formation of suspended droplets on top of the nanostructures as compared to partially wetting droplets which locally wet the base of the nanostructures....

Six varieties of mangoes (Amelia, Brooks, Kent, Keitt, Lippens, Springfield)harvested from different pedological areas of the western region of Burkina Faso (Bobo-Dioulasso, Orodara, Banfora) were analyzed by high performance liquid chromatography in order to determine the β-carotene content. The study revealed a variability in β-carotene content between different varieties and regions. The Ame...

Fodder shrubs are important dry season feed sources for livestock in semi-arid environments. It has been proposed that a mixture of leguminous with non-leguminous may increase rates N cycling and improve biomass fodder quality. The objective the present study was to assess productivity quality growing shrubs. Three shrub species—the legume Leucaena leucocephala (Lam.) non-legumes Guazuma ulmifo...

We report the fabrication of a sticky superhydrophobic paper surface with extremely high contact angle hysteresis: advancing contact angle ∼150◦ (superhydrophobic) and receding contact angle ∼10◦ (superhydrophilic). In addition, we report the controlled tunability of the contact angle hysteresis from 149.8 ± 5.8◦ to 3.5 ± 1.1◦, while maintaining superhydrophobicity, as defined through an advanc...

3 "I believe that what may be called classic social analysis is a definable and usable set of traditions; that its essential feature is the concern with historical social structures; and that its problems are of direct relevance to urgent public issues and insistent human troubles. "-C. Wright Mills (1959) 4 Acknowledgments I wish to thank my colleagues, particularly Drs. David Newcomb and Lill...