Materials Literature
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Cell based therapies offer potentially revolutionary treatments for a number of diseases, but are dependent on the culture and supply of defined cell types in appropriate numbers. In turn, this supply requires changes to current cell culture passaging methods, which commonly use enzymatic digestion. Here we demonstrat…
We have investigated the weak localization correction to magnetoresistance in one to six layer graphene structures. The magnetoresistance measurements have revealed that, in addition to the known transition from weak anti-localization in monolayer graphene to weak localization in bilayer graphene, the weak localizatio…
With increasing applications in consumer electronics such as smart phones, laptops and tablet PCs, the need for pervasive computing with a requirement of lower power consumption is increasing every day, This opens the door for energy harvesting that could charge the batteries in these devices to keep them continually…
We have measured the electroluminescence and photoluminescence of (9,7) semiconducting carbon nanotube devices and demonstrate that the electroluminescence wavelength is determined by the nanotube's chiral index (n,m). The devices were fabricated on Si3N4 membranes by dielectrophoretic assembly of tubes from monochira…
We investigated the magnetic properties of hydrogen-plasma-treated ZnO single crystals by using superconducting quantum interferometer device magnetometry. In agreement with the expected hydrogen penetration depth, we found that ferromagnetic behavior is present in the first 20 nm of the H-treated surface of ZnO with…
Nanotechnology is the production of materials at atomic and molecular level and is expected to open some new avenues to fight and prevent diseases. It leads to improvement in biology, biotechnology, medicine and healthcare by uncovering the structure and function of biosystems at the nanoscale. The size of nanomateria…
Water–rock interactions are at the heart of many of the processes that make the Earth (so far) a habitable planet2. Understanding and quantifying these processes help us to study, control and potentially remediate some of the anthropogenic interferences and disturbances affecting the delicate balance that makes life o…
Carbon nanoparticles were synthesized from natural gas soot and functionalized with ferrocenyl moieties by using 4-ferrocenylphenyldiazonium as the reactive precursor. The incorporation of the ferrocenyl units onto the carbon nanoparticle surface was confirmed by varied spectroscopic measurements. For instance, in FTI…
The inhibitive effect and adsorption properties of petiole extract obtained from destructive distillation of cocos nucifera for the corrosion of mild steel in 0.5 M H 2 SO 4 and 1 M HCl were investigated using mass loss, polarization and electrochemical impedance techniques of monitoring corrosion. The results obtaine…
Layer-by-Layer (LbL) films are extensively studied as promising (bio)functional coatings. Although many of their structural features are known, the self-assembly mechanism governing their buildup is still under debate. In this work, we describe the initial buildup and structure of biomimetic LbL films comprised of cho…
A coupled process to recycle the polystyrene (PS) polymer nanocomposites (PNCs) is introduced to synthesize ferromagnetic core@shell Ni@C nanoparticles (NPs) and simultaneously to produce useful chemical radicals or liquid fuels. The PNCs reinforced with core@shell Ni@NiO NPs are prepared by the solvent extraction met…
Birnessite nanotubes have been made through a templated hydrothermal route. Variations in experimental conditions have resulted in differing morphologies of high specific surface area. After forming into electrodes in supercapacitor test cells, good cycleability was observed with specific capacitances approaching 350…
Mn-doped ZnSe nanocrystals (Mn:ZnSe d-dots) that emit white light were synthesized in aqueous media in microfluidic reactors. White light emission from Mn:ZnSe d-dots was a result of combined emission of blue light (emission from non-coordinated surface selenium sites) and yellow light (4T1 → 6A1 emission from Mn2+ io…
Poly(methyl methacrylate) composites obtained in the presence of star poly(ethylene glycol) as shape memory polymers exhibit an extraordinary combination of rapid and full shape recovery with excellent mechanical properties compared to poly(methyl methacrylate)-poly(ethylene glycol) semi-interpenetrating networks by t…
We report experimental results on the structure and melting behavior of ice confined in multi-walled carbon nanotubes and ordered mesoporous carbon CMK-3, which is the carbon replica of a SBA-15 silica template. The silica template has cylindrical mesopores with micropores connecting the walls of neighboring mesopores…
To reveal the film formation mechanism of oil-in-water (O/W) emulsions, the thicknesses of nanofilms of an aqueous paraffin oil emulsion, stabilized with the nonionic Tween 80 and Span 80 surfactants, were measured in confinement between two solid surfaces, by the use of the relative optical interference intensity (RO…
Hydrogen release from ammonia borane (NH(3)BH(3), AB) can be greatly promoted by mechanical milling with magnesium nitride (Mg(3)N(2)). For example, a post-milled 6AB/Mg(3)N(2) sample started to release hydrogen from ∼65 °C and gave a material-based hydrogen capacity of ∼11 wt% upon heating to 300 °C. In addition to t…
Electrochemical Model of Solid Oxide Fuel Cell for Simulation at the Stack Scale I. Calibration Procedure on Experimental Data, Nakajo, Arata, Wuillemin, Zacharie, Metzger, Patrick, Diethelm, Stefan, Schiller, Günter, Van herle, Jan, Favrat, Daniel
YSZ-electrolyte supported solid oxide electrolyzer cells (SOECs) using LSM-YSZ oxygen electrode but with three types of hydrogen electrode, Ni–SDC, Ni–YSZ and LSCM–YSZ have been fabricated and characterized under different steam contents in the feeding gas at 850°C. Electrochemical impedance spectra results show that…
In this work was investigated a treatment method, which can be applied to pineapple fibers from crown with low environmental impact to improve its interfacial contact with polypropylene. Scanning electron microscopy (SEM), X-ray diffraction (XRD) and Thermal analysis (TGA) were used to characterise the effect of treat…