Production and characterization of films from nanocomposite coating of sunflower seeds Andriele Mendonça Barbosa, Klebson Silva Santos, Malone Santos Pinheiro, Isabelle Souza de Mélo Silva, Flávia Manuella Ribeiro de Mendonça, Fernando Mendonça Diz , Luzia Nilda Tabosa Andrade , Resende Yane Tainara Menezes , Rafaela Andrade Fonseca , Juliana Cordeiro Cardoso, Maria Lucila Hernandez Macedo , Fr...

Photoactive in one step! A nanocomposite water-oxidation photocatalyst was assembled by a straightforward and one-step spin-coating procedure of a Ti- and Ni-containing molecule on nanostructured WO3. The photoanode oxidizes water to O2 with good activity and stability in alkaline solution, and thereby features light absorption, charge separation and water-oxidation catalysis (see scheme).

This work presents research on the effects of polycaprolactone (PCL) and PCL modified with silica (Si2) nanoparticles, on the color change of offset printed paperboard. The nanocomposite was prepared with three different concentrations (1%, 2% and 3%) of SiO2, and applied in four different coating thicknesses (4 μm, 24 μm, 40 μm and 80 μm). The color values of the printed sample were measured b...

This article presents a novel method for tuning the reactivity of nanoenergetic materials by coating a strong oxidizer nanoparticle (potassium permanganate; approximately 150 nm) with a layer of a relatively mild oxidizer (iron oxide). The measured reactivity for a nano-Al/composite oxidizer could be varied by more than a factor of 10, as measured by the pressurization rate in a closed vessel (...

In this work, polypyrrole/CeO2 nanocomposite (NC) was synthesized in the presence of methylorange as a reactive self-degraded soft template. The field emission scanning electron microscopy(FESEM) images indicate that the CeO2 NPs have a nucleus effect and cause a homogenous PPycore–shell type morphology with an encapsulation of the CeO2 core by the PPy shell. The effect ofNC on acrylic waterbor...

Whereas the previous chapters focused mainly on the physical basics of surface plasmon resonance, instrumentation and assay design, we will now turn to the heart of SPR and related biosensors: the sensor chip and its surface chemistry. It is here where the biomolecular interaction takes place and although dimensionally extremely small (the coating thickness is measured in nanometers), the senso...

Nanocomposite TiO2 coatings of mixed anatase–rutile crystalline polymorphs with strong adherence to glass substrates were prepared via spray-plasma deposition method. The rutile content was varied between 0 and 30 mol%. coating showed an enhanced photocatalytic activity towards cefixime antibiotic decomposition in aqueous solutions under UVA (λ = 365 nm) light illumination. significantly increa...

This research work presents the microscopic analysis of pulse electrodeposited Ni-AlN nanocomposite coatings using SEM and AFM techniques and their performance evaluation (mechanical and electrochemical) by employing nanoindentation and electrochemical methods. The Ni-AlN nanocomposite coatings were developed by pulse electrodeposition. The nickel matrix was reinforced with various amounts of A...

Two different superhydrophobic surfaces were elaborated and their oil repellency behavior was evaluated using several liquid with different surface tension. A silicone rubber/SiO2 nanocomposite coated (A) on aluminum substrate by “spin-coating” and the sample B was an anodized aluminum surface covered by Teflon-like coating. A high static contact angle about ∼162° was measured for two prepared ...