Materials Literature
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Chitosan-based nanocomposites (NCs) at different modified multiwalled carbon nanotubes (MWCNTs) loadings were produced by solvent casting method. The effective dispersion of the MWCNT in polymer matrix is an important factor while making its NCs. The MWCNTs intrinsically tend to bundle and/or aggregate. For this reaso…
We describe the synthesis, characterization, and select properties of a novel polyurethane (PU) prepared using a new polyisobutylene diol, HO-CH2CH2-S-PIB-S-CH2CH2-OH, soft segment and conventional hard segments. The diol is synthesized by terminal functionalization of ally-telechelic PIB followed by low-cost thiol-en…
Materials with bioinspired superhydrophobic properties are highly desirable for many potential applications. Here, nine novel monomers derived from indole are synthesized to obtain these properties by electropolymerization. These monomers differ by the length (C4F9, C6F13 and C8F17) and the position (4-, 5- and 6-posi…
Abstract The hydrogels of reduced graphene oxide (rGOHGs) have been synthesized through treating GO with various concentrations of sodium hypophosphite (NaH2PO2) under hydrothermal condition. The results reveal that the structure of rGOHGs changes along with the increase of the concentration of NaH2PO2. The rGO sheets…
We experimentally investigated the electronic transport properties of four iron pnictide crystals, namely, EuFe 2 As 2 , SrFe 2 As 2 , and CaFe 2 As 2 parent compounds, and superconducting CaFe 1.94 Co 0.06 As 2 at ambient and high pressures up to 20 GPa. At ambient pressure we examined the electrical resistivity, Hal…
We report the correlation between thermoelectric properties and electronic band structure of thermoelectric Heusler alloy Fe2V1-xTixGa by comparing experimental measurements with theoretical calculations. The electrical resistivity data show that the semiconducting-like behavior of pure Fe2VGa is transformed to a more…
Azopeptides possess an imino urea as an amino amide surrogate in the sequence. Azopeptides were synthesized by oxidation of aza-glycine residues and employed in pericyclic chemistry. Diels-Alder cyclizations and Alder-ene reactions on azopeptides enabled construction of constrained aza-pipecolyl and reactive aza-allyl…
In the present work, a different green coupling agent (GCA) was developed from virgin coconut oil (GCA-C). The GCA-C were a kind of glycidyl fatty acid ester which are reactive to natural filler. A comparison between GCA made from palm oil (GCA-P) and coconut oil (GCA-C) was studied. The results indicated the tensile…
The fundamental sheet conductance of graphene can be directly related to the product of its absorption coefficient, thickness and refractive index. The same can be done for graphene's fundamental opacity if the so-called thin-film limit is considered. Here, we test mathematically and experimentally the validity of thi…
Conjugated multi-chromophore organic nanostructured materials have recently emerged as a new class of functional materials for developing efficient light-harvesting, photosensitization, photocatalysis, and sensor devices because of their unique photophysical and photochemical properties. Here, we demonstrate the forma…
The use of immobilized enzymes is mandatory for the easy separation of the enzyme, the unreacted substrates, and the obtained products to allow repeated enzymatic assays without cumbersome purification steps. The immobilization procedure is however critical to obtain a high fraction of active enzyme. In this article,…
Abstract The caloric behavior of bulk (Ba0.865Ca0.135Zr0.1078Ti0.8722Fe0.01Nb0.01)O3 (BCZTO‐FeNb) with respect to multiple physical inputs is investigated. Predictions were made by using modified Maxwell’s relations in conjunction with independent experimental data. BCZTO‐FeNb possesses significant potential for multi…
We demonstrate that spatial confinement can be used to control the orientational and translational order of cubic nanoparticles. For this purpose we have combined X-ray scattering and scanning electron microscopy to study the ordering of iron oxide nanocubes that have self-assembled from toluene-based dispersions in n…
Stretchable integrated circuits consisting of ultrathin Si transistors connected by multilayer graphene are demonstrated. Graphene interconnects act as an effective countervailing component to maintain the electrical performance of Si integrated circuits against external strain. Concentration of the applied strain on…
We have investigated the adsorption and desorption of water in two-dimensional hexagonal mesoporous silica (MPS) with three different pore dimensions. All the adsorption–desorption isotherms exhibited type V behavior with significant hysteresis. Hysteresis was observed in the transient region between the layer adsorpt…
The role of silver ions in the seed-mediated growth of gold nanostructures has been investigated. Silver submonolayer or monolayer on specific facet of gold is assumed in previously suggested mechanism owing to underpotential deposition (UPD) of silver by ascorbic acid having weak reducing power. Silver overpotential…
The fabrication of all-oxide junction-FETs consisting of n-type ZnO channels and p-type NiO gate electrodes with high optical transmission in the visible spectral range is reported. The influence of the channel layer thickness on the transfer characteristics in terms of ON-voltage, current ON/OFF ratio, and subthresho…
A series of 10-methyl-9-(phenoxycarbonyl)acridinium trifluoromethanesulfonates (XAEs), bearing substituents of various characteristics in the lateral benzene ring (2-halogen, 2,6-dihalogen, 2-trifluoromethyl, 2-nitro, 2-methoxy, 3-halogen and 4-halogen) were synthesized with high yields, identified and subjected to a…
The local structure within the Co-Fe atomic array of the photoswitchable coordination polymer magnet, K0.3Co[Fe(CN)6]0.77·nH2O, is directly observed during charge transfer induced spin transition (CTIST), a solid-solid phase change, using high-resolution transmission electron microscopy (HRTEM). Along with the low-spi…
Abstract Chemical vapor deposition on metal substrates using gaseous hydrocarbon as carbon feedstock has proven to be a feasible way for synthesis of large‐area and uniform graphene films. Meanwhile, rearrangement of amorphous carbon species extracted from solid carbon sources into crystalline graphene not only offers…