Coatings, Surfaces & Membranes – Page 13

Selective Separation of Oil from Water via Superhydrophobic Magnetic Foams

Fragouli D., Bayer I., Bertoni G., Calcagnile P., Anyfantis G.C., Cingolani R., Athanassiou A., Italian Institute of Technology, IT

We demonstrate an inexpensive and very facile technique, of forming magneticaly actuated superhydrophobic/superoleophilic foams. Specifically, a simple commercial polyurethane foam is used as a substrate on which a small amount of toluene solution containing colloidal [...]

Impact of Temperature and Humidity on Superhydrophobicity of Polyurethane/Organoclay Nanocomposites

Yeong Y.H., Steele A., Bayer I., Lakeman C., De Combarieu G., Loth E., University of Virginia, US

Recent preliminary investigations show that superhydrophobic coatings have the capability to reduce both ice accumulation and adhesion on a surface. Although there are recent studies of anti-icing superhydrophobic surfaces, the authors are not aware of [...]

Nano-structured Organically Modified Silica Thin Films for Functional Surfaces

Bayindir M., Yildirim A., Budunoglu H., Yaman M., Deniz H., Guler M.O., Bilkent University, TR

Organically modified silica (ormosil) nano-composites are unique materials that offer best of the both of organic polymers and inorganics, like mechanical flexibility together with good chemical durability [1]. Nano-porosity adds these hybrid materials extra-functionality (e.g., [...]

Silicon and Germanium Nanocrystal Thin Films Prepared Using Innovative Nonaqueous Electrophoretic Deposition

Haag M., Sipe J., Universal Nanotech Corporation, US

As cost effective synthetic routes for producing large quantities of high purity size-specific nanoparticles become fully realized, the next challenge lies in fabricating devices that utilize the unique size-dependent optoelectronic properties inherent in quantum dot [...]

Nanostructured Coatings, Surfaces & Films

Thin-Film Deposition on Nanoparticles in Low-Pressure Plasma

Shahravan A., Matsoukas T., The Pennsylvania State University, US

To achieve the desirable optical, mechanical, thermal, and electrical properties that are unattainable in the nanoparticles alone, Matsoukas group uses plasma enhanced chemical vapor deposition technique, PECVD. Particles are introduced into two different reactors that [...]

An experimental and theoretical study of the inhibition mechanism of organic substances in concrete

Diamanti M.V., Ormellese M., Perez-Rosales E.A., Pedeferri MP., Raffaini G., Ganazzoli F., Politecnico di Milano, IT

Corrosion inhibitors are one of the preventative techniques used to prevent chloride-induced corrosion in reinforced concrete structures. Several commercial inhibitors are available on the market, but their efficiency as well as their inhibitive mechanism are [...]

Chemical structure of ZnO nanorod array on a DSSC photoanode

Chang Y-H, Liao C-Y, Wang H.P., Wei Y-L, Fukushima Y., Guo T-F, Chiang Y-F, National Cheng Kung University, TW

The main objective of the present work was to study speciation of ZnO nanorods and the photoexcited electron transfer between photosensitive dyes and the ZnO nanorod arrays (Fig. 1) on the photoanode of a dye-sensitized [...]

Bio-Molecules Immobilization on Nanowire Electronic Devices

Maki G., Maki W., Mishra N., Fellegy M., Cameron E., Maki G., Maki W., University of Idaho, US

Nano-scale Field Effect Transistor based devices (nano-FETs) have shown great promise in bio-molecular detection. The advantages of using electronic nano-devices verses using conventional bio-detection methods are: direct detection without labeling, ultra-sensitivity without amplification and simple [...]

Atmospheric Plasma Surface Modification of Polytetrafluoroethylene Films for Metal Deposition

Stein B.E., Bujanda A.A., Strawhecker K.E., Pappas D.D., U.S. Army Research Laboratory, US

This work details the use of atmospheric-pressure dielectric barrier discharge plasmas to enhance the adhesion of thin metal coatings to PTFE films. Differences in energetic plasma species have a pronounced effect on resulting wettability. Increased [...]