Materials Literature
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Use of phase transfer catalysts such as 18-crown-6 enables ionic, linear conjugated poly[2,6-{1,5-bis(3-propoxysulfonicacidsodiumsalt)}naphthylene]ethynylene (PNES) to efficiently disperse single-walled carbon nanotubes (SWNTs) in multiple organic solvents under standard ultrasonication methods. Steady-state electroni…
The potential of ethanol extract of Ocimum gratissimum as a green inhibitor for the corrosion of mild steel in H2SO4 was investigated using gasometric, gravimetric, and thermometric methods of monitoring corrosion. The results obtained, indicated that ethanol extract of O. gratissimum is an adsorption inhibitor for th…
The in vitro toxic response of spiropyrans in cellular models has not been previously addressed, despite the fact that such photoswitchable molecules have shown great potential as versatile and tunable components for bionanodevices and imaging agents. In this study, we examine the cytotoxic effects of a spiropyran, na…
Nanomer and Cloisite are the popular commercial nanoclays (NC) available in the market. The mechanical properties of wood—plastic composite (WPC) based on linear low density polyethylene with or without wood fiber are compared for different added nanoclays. In addition, the moisture uptakes at 23 ° C and 45% RH and wa…
Lanthanide photochemistry has been frequently studied for its high luminescence intensity, narrow emission band, and stable luminescent lifetime decay. In the work presented here, nanoparticles prepared using an aerosolization process were derived from europium-based GUMBOS (Group of Uniform Material Based on Organic…
Electrical properties of graphite flake (GF) filled polyphenylene sulphide (PPS) composites prepared by hot pressing was investigated to be used for electromagnetic interference (EMI) shielding applications. Composites exhibited an electrical conductivity percolation threshold of 5 wt%. The electrical conductivity of…
Assembly of individual superparamagnetic iron oxide nanoparticles (SPION) into cluster is an effective way to prepare MRI contrast agent with high relaxivity. In this study, we fabricated SPION clusters with different sizes and configurations by assembly of amphiphilic mPEG-PLA copolymer with hydrophobic SPION in aque…
We have demonstrated the two-stage preparation of block polymers with various architectures containing mechanistically incompatible monomers. Three new monounsaturated chain transfer agents (CTAs) were synthesized containing two, four, or eight hydroxyl groups and used for the preparation of telechelic poly( cis -cycl…
This research produced high‐quality, single‐phase nickel titanate (NiTiO 3 ) thin films, a high‐ k material for gate dielectrics, by a modified sol–gel method. The precursor was prepared by reactions of nickel acetate tetrahydrate and titanium isopropoxide in 2‐methoxyethanol with a 1:1 ratio of Ni/Ti in the solution.…
This paper focuses on the absorption properties of electromagnetic waves, both electric and magnetic, from multiwalled carbon nanotubes (MWCNTs)-epoxy composites. A microwave resonant cavity was utilized as a probe. Six groups of MWCNT-epoxy composite samples with different MWCNT outside diameters (ODs) were fabricate…
(Bi0.5Na0.5)TiO3 (BNT) single crystals were grown by flux method at a high oxygen pressure (P O2 ) of 1 MPa, and their polarization and piezoelectric properties were investigated. BNT single crystals exhibited a saturated polarization hysteresis with remanent polarizations (P r) of 31 µC/cm2 along [100]c, 44 µC/cm2 al…
A series of sugar-appended organogelators, 4-(4'-alkoxyphenyl)phenyl-β-O-D-glucoside (GBCn, where n = 1-12 denotes the number of carbon atom in the tail), are synthesized to elucidate the effect of terminal chain length on their gelation and chiral expression abilities in gels. In the mixture of H(2)O/dioxane (60/40 v…
A novel internal reflection element (IRE) for attenuated total reflection Fourier transform infrared (ATR-FT-IR) spectral acquisition is introduced and applied for several surface-sensitive measurements. It is based on microstructured double-side-polished (100) silicon wafers with v-shaped grooves of {111} facets on t…
Absorption and linear dichroism spectra of self-assembled tubular aggregates of TPPS(4) porphyrin are studied theoretically with special emphasis on the low energy part of the spectra (the Q band region) where the coupling with intramolecular vibrations is pronounced. The model Hamiltonian includes both the excitonic…
Lead-free ceramics Ba(Zr xTi1-x)O3 (x = 0.02-0.2) were prepared using a solid-state reaction technique. The structural and electrical properties were systemically investigated. Crystalline structures and microstructures were analyzed by X-ray diffraction and scanning electron microscope (SEM) at room temperature. All…
We have fabricated K0.5Na0.5NbO3 (KNN) thin films on Pt substrates by a chemical solution deposition method and investigated the effect of K and Na excess (0–30 mol %) for KNN thin film. The KNN film with 20 mol % excess K and Na was an optimized KNN perovskite phase. From the Raman spectra, a change in the scattering…
X-ray diffraction, electron microscopy, microhardness measurements, and differential scanning calorimetry have been used to investigate the formation of the dislocation substructure and nanocrystalline and amorphous structures in Ti-Ni shape-memory alloys depending on the degree of cold deformation by rolling and post…
The piezoelectricity of a film of the eco-material poly(L-Lactic acid) (PLLA) with high transparency and flexibility has been noted for its possibility of application to new types of devices used in mobile equipment. However, for its application, there are many difficult problems to be solved, because the PLLA film ha…
BACKGROUND: Safety is a primary concern with contrast agents used for MRI. If precautions could be taken before the repeated administration of gadolinium-based contrast media, then the awareness and management of adverse reactions would be more efficient. OBJECTIVES: To assess the safety and efficacy of gadoterate meg…
In this contribution, we report on experiments performed in MAST to investigate dust creation, transport and influence on plasma performance. The exceptional diagnostic access of MAST allows stereoscopic imaging of dust particles' motion in both the divertor and the main chamber, utilizing fast infrared cameras. This…