Materials Literature
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In order to obtain novel “flying-seed-like” liquid crystals, we have prepared a series of bulky group-substituted phthalocyanine derivatives without any long alkyl chains: tetra[4-(triphenylmethyl)-phenoxy]phthalocyaninato copper(II) (1a), tetra[4-(1,1-diphenylethyl)phenoxy]phthalocyaninato copper(II) (1b), tetra[4-(1…
The energetics of the order-disorder phase transformation in the binary oxide system, Eu2O3–ZrO2, is studied by powder X-ray diffraction and high temperature drop solution calorimetry. The nanocrystalline defect fluorite phase of Eu2Zr2O7 is synthesized on crystallization of an amorphous precursor from aqueous precipi…
Ultra-fine nanofiber mats of cellulosic polymer and polyvinyl alcohol (PVA) containing silver (Ag) nanoparticles were fabricated using the electrospinning technique. Polymers with hydroxyl groups on the backbone such as PVA, PVA/dextran and PVA/methyl cellulose were chosen for this study. All polymers showed the abili…
A new cationic Ir(III) complex based on a dendritic ancillary ligand has been designed and synthesized, which simultaneously exhibits piezochromic luminescent (PCL) behavior and aggregation-induced emission (AIE) property for the first time.
A simple, sensitive, and selective method based on the fluorescence quenching of BSA-stabilized gold nanoclusters (BSA-AuNCs) for rapid determination of vitamin B12 is developed. The fluorescence emission was measured at λex/λem 370/617 nm in phosphate buffer solution of pH 7.4, and the experimental variables and poss…
Transition metal atom M (M = Cu, Ag, Au) adsorption on CeO(2)(110), a technologically important catalytic support surface, is investigated with density-functional theory within the DFT+U formalism. A set of model configurations was generated by placing M at three surface sites, viz., on top of an O, an O bridge site,…
Glasses in the system xZnF2–(20−x)ZnO–40As2O3–40TeO2 (x = 0, 4, 8, 12, 16 and 20 mol%) were prepared by normal melt quenching method. The change in density and ionic packing density in these glasses indicates the effect of ZnF2 on the glass structure. The optical constants of these glasses are determined over a spectr…
A simple way to prepare α- and β-CoMoO4 nanorods is reported in this paper. CoMoO4xH2O nanorod precursors were obtained using the microwave-assisted hydrothermal (MAH) method. By annealing the as-prepared CoMoO44xH2O precursor at 600℃ for 10 min in a domestic microwave oven, α- and β-CoMoO4 nanorods were prepared. The…
We here designed and prepared a multi-responsive microgel (hPEA-mGel) fabricated through the co-assembly of hyperbranched poly(ether amine) and pentaerythritol tetra(3-mercaptopropionate) (PTMP) in aqueous solution, followed by thiol–ene photo-click crosslinking. The obtained hPEA-mGel is uniform-sized particles with…
Novel electron-donating triphenylamine (TPA)-containing electroactive functional polyimides with electron-withdrawing pendant anthraquinone moiety were designed and prepared for memory devices, electrochromic and gas separation applications. These high-performance polymers exhibited two conductivity states and could b…
Highly luminescent nearly monodisperse carbon quantum dots (CQDs) are synthesized by facile emulsion-templated carbonization of low cost and non toxic carbohydrates excluding the size selection procedure. The present method is further combined with in situ nitric acid treatment to offer high quantum yields up to 53% w…
Here, we present the preparation of a Ag/NaYF(4):Yb,Er composite film via a simple assembly method and its considerably enhanced multicolor emissions owing to the strong coupling between the 980 nm excitation light and the ultra-broad surface plasma resonance (SPR) of silver.
The primary inadequacy of chemotherapeutic drugs is their relative non-specificity and potential side effects towards healthy tissue. To overcome this, in this study a novel drug delivery system, namely, carboxymethyl chitosan capped magnetic nanoparticle intercalated montmorillonite nanocomposites (CMCS-capped-MNP/MM…
A novel white-light-emitting phosphor, 12CaO·7Al2O3:Ce3+, Dy3+with H− encaging, was prepared by the solid-state reaction in H2 atmosphere. Upon excitation at 362 nm, the phosphor shows intense white-light emission that combines the blue and yellow emissions at 476 and 576 nm, assigned to the 4F9/2 → 6H15/2 and 4F9/2 →…
In the present work, we prepared biodegradable poly(ethylene succinate) (PES) and its three novel copolyesters poly(ethylene succinate-co-ethylene adipate) (P(ES-co-EA)) with the ethylene adipate (EA) comonomer composition ranging from 5.1 to 15.3 mol%. Crystal structure, thermal stability, crystallization kinetics, a…
In order to improve the hydrogen storage properties of Mg, Mg@Mg17Al12 ultrafine particles (UFPs) with 7, 22 and 27 at% Al have been successfully prepared by a hydrogen plasma–metal reaction (HPMR) approach. These UFPs are nearly spherical in shape with an average size of about 150 nm. The Mg particle core is a single…
Facile routes to metal oxide and mixed metal oxide nanomaterials, with control over the resulting particle size and composition, are highly desirable due to their wide-ranging potential applications. The degree of control possible over the resulting products, in terms of particle size and morphology and chemical compo…
We report on the observation of exchange bias (EB) and memory effect in double perovskite Sr2FeCoO6. Antiphase boundaries between the ferromagnetic and the antiferromagnetic regions in the disordered glassy phase are assumed as responsible for the observed effect, which reflects in the cooling field dependence and tem…
The self-assembly of functional block copolymers (BCPs) into dispersed nanoparticles is a powerful technique for the preparation of novel delivery vehicles with precise control of morphology and architecture. Well-defined BCPs containing an alkyne-functional, biodegradable polylactide (PLA) block were synthesized and…
The microstructure of food is key to its sensorial perception, and methods to characterize the microstructure are of crucial importance in food engineering. Ice cream is a special example whose microstructure changes dramatically in response to temperature variations. Since ice cream is a multiphase material, the comp…