Materials Literature
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We investigated the high pretilt angle effects on electro-optical properties of ion beam (IB)-irradiated liquid crystal cells on a blended polyimide surface. High pretilt angle of liquid crystals IB-irradiated on a blended polyimide surface including such as 5% and 10% of homeotropic polymer contents can be achieved.…
Nanoparticles are increasingly being recognized for their potential utility in biological applications including nanomedicine. Here, we have synthesized zinc oxide (ZnO) nanorods using zinc acetate and hexamethylenetetramine as precursors followed by characterizing using X-ray diffraction, fourier transform infrared s…
From the standpoint of a solid-state physicist, nanocrystals are nothing else but a kind of low-dimensional structure complementary to quantum wells (two-dimensional structures) and quantum wires (one-dimensional structures). However, nanocrystals have a number of specific features that are not inherent in the two- an…
A rectification method was developed for the purification of pivalic acid (PVA) on an experimental scale. Ultrapure PVA with a purity of 99.993% was prepared at a rate of 250 mL a week by multistep rectifications, a more convenient and much faster method than the traditional zone refining method. Typical operational c…
Lead author of this article has notified us of an error in the listing of authors' names. The authors names were published as “SARAVANAN CHINNUSAMY, KANNAN PALANINATHAN” and it should have been “CHINNUSAMY SARAVANAN, PALANINATHAN KANNAN”. We apologize for the error and any inconvenience this may have caused.
Quinoxaline kite velcrands were functionalized with a ureidopyrimidone moiety at the lower rim, in order to combine multiple hydrogen bonding and solvophobic interactions to build dual-coded supramolecular structures. The orthogonality of the selected binding motifs has been demonstrated by NMR studies, as well as the…
Principally, domains of opposite chirality can exist either in anticlinic antiferroelectric structures in sample bulk or in synclinic ferroelectric structures induced near surfaces by strong polar surface anchoring or by the influence of an external electric field. Domains of opposite chirality are separated by π-wall…
In the present work, we are reporting thermal, optical and dielectric properties of (S)-(+)-4′-[4-(1-methylheptyloxycarbonyl)] biphenyl 4-[3-(octanoyloxy)prop-1-oxy]benzoate. This compound possesses Iso- SmA*– SmC*α – SmC* –SmC*γ–SmC*A–Cr phase sequences upon cooling. Dielectric properties of this compound have been i…
SiC nanowires and SiC/SiO 2 core-shell structural nanowires were synthesized via a simple thermal evaporation of Co x Si y melts at the temperature of 1500°C. The morphologies and yields of those SiC nanowires can be tuned by altering the composition of Co x Si y . Nanowires obtained by thermal evaporation of CoSi are…
An InxGa1-xAs thin-film inverted metal-semiconductor-metal photodetector has been integrated with a gold hybrid long-range surface plasmon waveguide on silicon. This integrated structure enables planar integrated optical detection of a long-range surface plasmon wave at a wavelength of 1.55 μm.
Calorimetric measurements have been done to investigate the smectic-C*α(SmC*α)- smectic-C*(SmC*) transition using high sensitivity differential scanning calorimetry. It was found that the SmC*α−SmC* transition for a liquid crystalline compound 11OHFBBB1M7 shows a first-order transition with a clear thermal hysteresis…
A new compound K8Na4[As4W19O69]·19.5H2O (1), which can be described as an extended structure of [As2W19O67(H2O)]14–, was synthesized and used as building blocks to construct the high nuclear polytungstoarsenate cluster K10Na8[(W13O28)(H2O)6(OH)4(AsW9O33)4]·56H2O (2). Polyoxoanion 2 is composed of four trivacant Keggin…
A series of ditopic ligands bearing terpyridyl and polyamine coordination sites have been prepared. Complexes with RuII bound to the terpyridyl sites of many of these ligands have been prepared. RuII complexes of these ligands appear vulnerable to nucleophilic displacement of the polyamine portion of the ligand by BH4…
Bamboo charcoal beads (BCBs) were formed by coprecipitating bamboo charcoal particles with chitosan in alkaline solution. The amount of chitosan in the BCBs and their surface properties were measured. When 13-52 mg BCBs were exposed to RAW 264.7 macrophages, the amount of nitric oxide released and the cell viability w…
${\text{SrSn}}_{2}{\text{Ga}}_{1.3}{\text{Cr}}_{2.7}{\text{O}}_{11}$ is shown to be a strongly geometrically frustrated magnet through measurement of its temperature-dependent magnetic susceptibility and specific heat. This material, determined by powder neutron diffraction to have an $R$-type ferrite crystal structur…
We fabricated a humidity-sensing material, using a solution-based process of Fe-Al-polyaniline (PANI) blends. The characteristics of the developed material were verified by IR, UV-visible (VIS) spectroscopy, and SEM. Based on these observations, the water vapor absorption introduced the resistance change of the PANI b…
The micro-ring like structured zinc oxide (ZnO) film was deposited on SnO 2 : F coated glass substrate by sol-gel dip-coating technique with 1.0 g polyethylene glycol (PEG) content. The surface morphology of micro-ring structured ZnO film has been confirmed by the scanning electron microscope. This ZnO film is used to…
Abstract Synthetic reactions aimed at bismuth incorporation into rare‐earth‐metal‐rich tellurides yielded Lu9Bi≈1.00Te≈1.00 over a small range of compositions, but no analogues with Gd, Tb, Er, or Y. A single‐crystal X‐ray diffraction analysis gave the composition Lu9Bi0.99(3)Te1.01 in the acentric orthorhombic space…
Abstract Lubricant oils undergo degradation increasing polycyclic aromatic hydrocarbons (PAHs) concentration. In this work, PAHs adsorption onto activated carbon, powder silica, and powder chitosan surfaces was estimated, with their concentrations in organic solvents (ethanol, 2‐propanol, 1‐butanol, and terc‐butanol)…
Procedures derived from bioinspired mechanisms are increasingly being used to create novel materials based on the principles of green chemistry. Thymine, a nucleic acid base in DNA, has the propensity to both hydrogen bond and photodimerize. Photodimerization of thymine occurs when irradiated at wavelengths of >270 nm…