Materials Literature
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The enzyme α-L-fucosidase (AFu) plays an important role in the diagnosis of hepatocellular carcinoma (HCC) and fucosidosis. In this paper, a simple, sensitive and precise method based upon measuring the fluorescence quenching of CdTe semiconductor quantum dots (QDs) was developed for detecting the enzymatic activity o…
Iron oxide based nanoparticles are finding their way as leading actors in nanotechnology applications to medicine. Magnetite nanoparticles are currently being used in clinics for the detection of hepatic tumors based on their unspecific accumulation in liver. More and more works are being published on potential applic…
Even very low levels of sulfur contaminants can degrade the catalytic performance of cerium oxide. Here, the interaction of atomic sulfur with the ceria (111) and (110) surfaces has been studied using first-principles methods. Two sulfoxy species are identified: oxido-sulfate(2-) species (SO 2– ) on both the CeO 2 (11…
Metallized textile has metallic color with reflective effect and smooth handle. The electroless copper plating on fabric using hypophosphite as a reducing agent is feasible process for design application. This study aims to investigate the appearance of the copper-plated Green-PN fabric produced by electroless plating…
Precious metal incorporated into stable lattices like perovskites can be envisaged as an alternative catalysts to address deactivation problems. Here we report the barium cerate perovskite doped with varying amounts of Pt as catalysts for the water–gas shift reaction whereby ionic Pt is evidenced to be active. It is f…
The incorporation of unnatural chelating amino acids in short peptide sequences leads to lanthanide-binding peptides with a higher stability than sequences built exclusively from natural residues. In particular, the hexadentate peptide P(22), which incorporates two unnatural amino acids Ada(2) with aminodiacetate chel…
The effect of pore morphology on capillary condensation and evaporation in nanoporous silicon is studied experimentally. A variety of cooperative and local effects are observed in tailored nanopores with well-defined regions by directly probing gas adsorption in each region using optical interferometry. All observatio…
Silver silica gold sandwich nanoparticles were synthesized by a multistep seeded growth process and were characterized by UV-vis spectroscopy, transmission electron microscopy, and X-ray diffraction. Gold islands allow passage of light through the crevices into the silica layer, and the silver core-silica shell behave…
The nature of the critical behavior in the refractive index n is revisited in the framework of the complete scaling formulation. A comparison is made with the critical behavior of n as derived from the Lorentz-Lorenz equation. Analogue anomalies to those predicted for the dielectric constant ε, namely, a leading |t|(2…
Abstract Polymeric foams have many advantages such as light weight, high specific strength, strong energy absorption, as well as good sound and thermal insulation. Unfortunately, most polymeric foams such as polyvinyl chloride foams do not undergo natural degradation and thus giving rise to white pollution to the envi…
Graphene field-effect transistors (GFETs) with different metal electrodes are fabricated to explore the contact characteristics. The contact resistance and the spatial potential distribution along the graphene/metal interface are investigated. The low-doped graphene/metal contact can be reversibly switched between "oh…
Semiconductor nanomaterials tagged with biomarkers may be used for an early fluorescence-based detection of breast cancer. ZnO nanoparticles are water-soluble, non-toxic, photo-chemically stable with highly fluorescence applicability and are regarded for their possible biocompatibility. As a long-term research plannin…
Abstract Fractionation techniques such as temperature rising elution fractionation or crystallization analysis fractionation fail to fractionate the ethylene–propylene (EP) copolymers, which are a component of high‐impact polypropylene (hiPP), according to their chemical composition. High‐temperature high‐performance…
The carbazole- and indolone-based porphyrinoids 3 and 4 were synthesized by stepwise transition-metal-catalyzed coupling reactions. Palladium metalation of 4 produced 4Pd, which exhibits near-infrared absorption.
Surface-enhanced Raman optical activity (SEROA) is a new technique combining the sensitivity of the surface-enhanced Raman scattering (SERS) with the detailed information about molecular structure provided by the chiral spectroscopies. So far, experimental SEROA spectra have been reported in several studies, but the i…
The benthic diatoms composition of the surface sediments were sampled at two-weekly intervals from May 2008 to May 2009 at ten stations along a transect across the intertidal zone of the Solthörn tidal flat (southern North Sea, Germany). Inorganic macronutrients (nitrate, nitrite, silicic acid and reactive dissolved p…
The magnetic behavior at room temperature of maghemite nanoparticles of variable sizes (from 7 to 20 nm) is compared using a conventional super quantum interference device (SQUID) and a recently patented technology, called MIAplex. The SQUID usually measures the magnetic response versus an applied magnetic field in a…
The inhibitive effect of Ficus glumosa gum (FG) for the corrosion of mild steel in H2SO4medium was evaluated using the weight loss, gasometric, thermometric and scanning electron microscopy (SEM) techniques. The results obtained revealed that FG gum gum is a good adsorption inhibitor. It inhibited the corrosion of mil…
We present experimental results and rigorous numerical simulations on the optical properties of Black Silicon surfaces and their implications for solar cell applications. The Black Silicon is fabricated by reactive ion etching of crystalline silicon with SF<sub>6</sub> and O<sub>2</sub>. This produces a surface consis…
Mesoporous silica capsules with submicrometer sizes were successfully prepared via the interfacial hydrolysis and condensation reactions of tetraethoxysilane (TEOS) in inverse miniemulsion by using hydrophilic liquid droplets as template. The inverse miniemulsions containing pH-controlled hydrophilic droplets were fir…