An iodide-terminated polymer (Polymer-I) is converted to a thiol-terminated (Polymer-SH) using HSCH2CH2SH in remarkably short time (10 min). Polymer-SH further pyridyl disulfide-terminated (Polymer-SS-Py). The hetero-coupling of and Polymer-SS-Py successfully achieved quantitatively generate disulfide (Polymer-SS-Polymer). Exploiting this efficient technique, attached (grafted) on Py-SS-immobil...

The aim of this article was to examine the effect hybrid nano – coating that could potentially impact enhancement heat transfer coefficient distilled water, Reynolds number, and temperature through a swirl exchanger, as well indicator Zeta voltage in process. In experimental work, type used Aluminum (Al) + oxide Al2O3. Outcomes study showed exchanger is much better than without improving therma...

As a surface functional material, super-hydrophobic coating has great application potential in wind turbine blade anti-icing, self-cleaning and drag reduction. In this study, ZnO SiO2 multi-scale superhydrophobic coatings with mechanical flexibility were prepared by embedding modified nanoparticles PDMS. The higher static water contact angle (CA is 153°) lower rolling (SA 3.3°), showing excelle...

The influence of pH on the sorption of pentachlorophenol (PCP) onto three organic amendments, char, humic acid (HA) and peat, and the effect of organic amendments on PCP sorption to three kinds of soils were evaluated. The sorption of PCP on these sorbents fitted the Freundlich model well, suggesting that PCP sorption isotherms were nonlinear with exponential coefficient (N) value lower than 1....

purpose: to compare the optical properties of hydrophilic and hydrophobic intraocular lenses (iols) containing uv-absorber and to determine their chemical composition. methods: optical properties of different foldable hydrophilic and hydrophobic as well as non-foldable hydrophobic polymethylmetacrylate (pmma) iols were evaluated in three powers of 15, 22 and 25 diopters. optical properties were...

Liquids in the Leidenfrost state were shown by Linke to self-propel if placed on ratchets. The vapour flow below the liquid rectified by the asymmetric teeth entrains levitating drops by viscosity. This effect is observed above the Leidenfrost temperature of the substrate, typically 200°C for water. Here we show that coating ratchets with super-hydrophobic microtextures extends quick self-propu...

Super water-repellent surfaces occur naturally on plants and aquatic insects and are created in the laboratory by combining micro or nano-scale surface topographic features with hydrophobic surface chemistry. When such types of water-repellent surfaces are submerged they can retain a film of air (a plastron). In this work, we report measurements of the terminal velocity of solid acrylic spheres...

Direct imaging becomes important when the knowledge at few/single molecule level is requested and where the diffraction does not allow to get structural and functional information. Here we report on the direct imaging of double stranded (ds) λ-DNA in the A conformation, obtained by combining a novel sample preparation method based on super hydrophobic DNA molecules self-aggregation process with...

Agricultural paper mulch is an indispensable part of modern agriculture. It had the functions heat preservation, moisture insect resistance, disease prevention, and weed growth inhibition. In order to extend service life mulch, we use solution immersion method modify surface mulch. A super-hydrophobic mainly prepared by using hydrophobic silica. The static contact angle with water 160.6°. sampl...