The present study demonstrates that the superhydrophobic behavior of lotus leaf structure can be mimicked by creating a honeycomb-like polyelectrolyte multilayer surface overcoated with silica nanoparticles. Superhydrophobicity was achieved coating this highly textured semifluorinated silane. maintains its character even after extended immersion in water. key structural elements needed to create stable, coatings from multilayers are discussed.

The present study demonstrates a surface structure that mimics the water harvesting wing of Namib Desert beetle. Hydrophilic patterns on superhydrophobic surfaces were created with water/2-propanol solutions polyelectrolyte to produce extreme hydrophobic contrast. Selective deposition multilayer films onto hydrophilic introduces different properties area including superhydrophilicity. Potential applications such include surfaces, controlled drug release coatings, open-air microchannel...

Multifunctional nanoporous thin films have been fabricated from layer-by-layer assembled silica nanoparticles and a polycation. The resultant multilayer were found to exhibit both antifogging antireflection properties. properties are direct result of the development superhydrophilic wetting characteristics (water droplet contact angle <5 degrees within 0.5 s or less). nearly instantaneous sheetlike promoted by prevents light scattering water droplets forming on surface. low refractive index...

Thin film electrodes of polyaniline (PANi) nanofibers and functionalized multiwall carbon nanotubes (MWNTs) are created by layer-by-layer (LbL) assembly for microbatteries or -electrochemical capacitors. Highly stable cationic PANi nanofibers, synthesized from the rapid aqueous phase polymerization aniline, assembled with carboxylic acid MWNT into LbL films. The pH-dependent surface charge MWNTs allows system to behave like weak polyelectrolytes controllable thickness morphology varying...

We present the layer-by-layer assembly of an electroactive polymer nanocomposite thin film containing cationic linear poly(ethyleneimine) (LPEI) and 68 vol % anionic Prussian Blue (PB) nanoparticles, which allow for electrochemical control over thickness mechanical properties. Electrochemical reduction PB doubles negative charge on particles, causing influx water ions from solution to maintain electroneutrality in film; concomitant swelling increased elastic compliance result. Reversible...

Abstract This article describes the investigation of molecularly imprinted fluorescent polymer membranes as sensing receptors for Hg 2+ detection by an optical approach. The polymers were synthesized with 4‐vinylpyridine a functional monomer and template; 9‐vinylcarbazole was used both complex‐forming agent fluorescence probe. free‐radical polymerization performed within semicylindrical Teflon mold initiated 2,2′‐azobisisobutyronitrile at 60°C. template, ion‐bonded to pyridine carbazole...

Graphene-containing fibrous structures with a high level of affinity towards polymer matrix solution have been proved to be promising for performance macroscopic nanocomposite reinforcement purposes.

Abstract Nano-hydroxyapatite/cellulose-graft-polyacrylamide biocomposite hydrogels of different molar ratios were prepared to examine their potential application as a carrier for colon targeted drug delivery in vitro. The particle size the synthesized nano-hydroxyapatite was found be 122 nm. swelling behavior composite observed acidic and basic aqueous solution that simulated lower small intestine, stomach fluids. hydrogel could applied drug-delivery systems acetylsalicylic acid used model...

The importance of surface topology for the generation cavitating flows in micro scale has been emphasized during last decade. In this regard, utilization roughness elements is not only beneficial promoting mass transportation mechanisms, but also improving characteristics by offering new interacting areas. Therefore, it possible to increase performance microfluidic systems involving multiphase via modifying surface. study, we aim enhance and intensification inside devices developing...

Successful performance of biocompatible hybrid systems in various biomedical applications such as wound healing patches, and scaffolds for stem cell preparation have been reported.

There has been increasing interest in recent years identifying an ice-removal procedure that is low cost and scalable consumes a negligible amount of energy order to prevent catastrophic failures outdoor structures. One the potential solutions structural problems caused by frigid icy conditions use slippery liquid-infused porous surfaces (SLIPS) effect passive ice removal using easy, economical, energy-free means. This work takes advantage highly flexible layer-by-layer (LbL) technology...

Electrospinning has been realized to be a promising method for creating nano-composite fibers due its significant growth producing innovative composites with advanced applications. In this polymeric solution subjected an electrohydrodynamic process and slim charged liquid jet is formed inside high potential electric field. The voltage enables the production of continuously long on collector surface. Addition different polymers NPs one-component modify physicochemical characteristic...

Abstract Three‐dimensional (3D) urchin‐shaped free‐standing composite electrodes were produced by the integration of single‐ and multi‐layer graphene manganese oxide in a step‐wise procedure. The strong interactions between components confirmed spectroscopic characterization techniques. influence on electrochemical performance was investigated detail. Single‐layer with more oxygen functional groups showed better interfacial each component due to exfoliated structure. electrode containing...