Materials Literature
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Micropatterns of the nanostructured aluminum oxide (NAO) with sizes from 5 to 200 μm have been successfully fabricated on the indium tin oxide (ITO) glass substrate by simply combining a lift-off process and a one-step anodization process for the first time. The detection of fluorescent dyes and biomolecules tagged wi…
Materials with broken inversion symmetry are of great interest for their exotic electronic properties but are relatively rare. We show here that even if a material is inversion-symmetric in the bulk form, in epitaxial thin films of the same compound the crystallographic unit cell can be quite asymmetric. To demonstrat…
Abstract One of the widely accepted uses of ordered mesoporous materials is as supports of enzymes for biotechnological applications. Enzymes have been trapped, anchored, or encapsulated in organized porous networks of the mesoporous range (2–50 nm). The reactivity of the surface of mesoporous materials has enabled th…
A detailed structural disorder investigation of Prussian blue analogues M 1.5 [Cr(CN) 6 ]· z H 2 O (M = Fe and Co) has been done by carrying out a reverse Monte Carlo (RMC) simulation on the powder neutron diffraction data. X-ray diffraction, infrared spectroscopy, Mössbauer spectroscopy, and dc magnetization measurem…
A study about the size-dependence of the hyperpolarizability-enhancement observed in metal-functionalized finite graphene species is presented. The reported ab initio and density functional results suggest that edge-passivation of graphene fragments with metallic agents (in this case Li) triggers an impressive enhance…
Abstract Interest regarding the WGS process has grown significantly, because of the recent progression in fuel cells as a clean technology for power generation. Due to the large volume and cost of WGS conventional two‐stage reactors, and also problems related to pyrophoricity and lengthy reduction of customary catalys…
Abstract Since electric cables play important roles such as power supply and information transmission, their degradation may cause serious problems. We have been trying to monitor the degradation of cable insulation by measuring the magnitude and phase angle of the impedance as a function of frequency in a very wide f…
Recent advances in nanostructured materials have spurred the development of improved thermoelectric (TE) devices. Performances of these systems are strongly linked to their thermal conductivities. Accurate measurement techniques of thermal parameters are therefore required to assess the efficiency of new thermoelectri…
A series of L-cysteine-derived double hydrocarbon chain amphiphilic gelators L-(3-alkyl-carbamoylsulfanyl)-2-(3-alkylurido)propionic acid with different hydrocarbon chain lengths (C6-C16) was designed and synthesized. These gelators efficiently gelate only aromatic solvents. The gelation ability increased with the inc…
The use of ionic self-assembly, a facile non-covalent approach, to access non-conventional block copolymer morphologies, including tetragonal and helical structures, from a combination of polyferrocenylsilane diblock copolymer polyelectrolytes and AOT-based surfactants, is described.
Aluminum nitride (AlN) nanoparticles were firstly treated with a silane coupling agent, γ‐aminopropyl‐triethoxysilane (γ‐APS), to introduce amine groups (AlN‐APS), then grafting of the hyperbranched aromatic polyamide started from the modified surface (AlN‐HBP). The surface modified AlN nanoparticles were characterize…
In this research, the effect of heat treatment on the machinability of α/ β (Ti54M) and β (Ti10-2-3) titanium alloys was investigated experimentally for the as-received, annealed and solution-treated plus aged conditions. Forces and temperature, that is, life of the cutting tool, are mainly influenced by variation in…
Analytical and equivalent circuit models are presented to elucidate the balance of powers in scattering processes. Specifically, closed-form expressions of the associated maximal extracted, scattered, absorbed and reactive powers are formulated. The circuit model then helps to characterize in a straightforward manner…
Phase structures and transitions of a series of side-chain liquid crystalline polyacetylene (SCLCPA) with a short spacer of three methylene units and different lengths of alkyl tails, namely, poly(5-{[(4′-alkyl-4-biphenylyl)carbonyl]oxy}-1-pentyne) (P-3, m, m is the number of the carbon atoms in the alkyl tail, m = 5,…
By systematically investigating the light emission and scattering properties of arrays of Au nanoparticles with varying size and separation, we demonstrate tunability and control of metal photoluminescence and unveil the critical role of near-field plasmonic coupling for the engineering of active metal nanostructures.…
Fluorine-free surfaces with high water contact angle (WCA) and high adhesion force to water are prepared by the atmospheric pressure dielectric barrier discharge (AP-DBD) of hexamethyldisiloxane on cold rolled aluminum foil. Water droplets, which remained on the plasma-polymerized hexamethyldisiloxane (ppHMDSO) surfac…
From nano- to macroscale: The immobilization of photo- and redox-active 9,10-di(1,3-dithiol-2-ylidene)-9,10-dihydroanthracene-based dipeptide 1 onto SWCNTs resulted in a high order of self-alignment among 1/SWCNTs (see picture). The assembly of the 1/SWCNTs is the key for stabilizing long-lived charge-separated states…
We study the electronic structure of multilayer graphenes with a mixture of Bernal and rhombohedral stacking and propose a general scheme to understand the electronic band structure of an arbitrary configuration. The system can be viewed as a series of finite Bernal graphite sections connected by stacking faults. We f…
The use of laser induced surface plasmons on metal nanoparticles has proven to be an excellent tool for the delivery of molecules like siRNA and DNA into cells. However, a detailed understanding of the basic mechanisms of molecular uptake and the influence of parameters like biological environment is missing. In this…
Single molecule magnets (SMM) may be considered for the construction of future integrated nanodevices, provided however that some degree of ordering is imparted to these molecules (surfaces nanostructuration). Combining such nanoobjects with liquid-crystalline orderings to control their assembly and to potentially add…