Materials Literature
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Using X-ray diffraction (XRD), transmission electron microscopy (TEM) and scanning electron microscopy (SEM), we have studied the growth of the single crystalline nanowires of Ag, Cu, Ni and Co metals in the small pores (50 nm). We find that the preferential growth surface of the single crystalline nanowires is on the…
The development of fluorescent biolabels for specific targeting and controlled drug release is of paramount importance in biological applications due to their potential in the generation of novel tools for simultaneous diagnosis and treatment of diseases. Dopamine is a neurotransmitter involved in several neurological…
We report the results of a systematic study of the effect of halides on hydrogen release and uptake in lithium amide and lithium imide, respectively. The reaction of lithium amide and lithium imide with lithium or magnesium chloride, bromide and iodide resulted in a series of amide-halide and imide-halide phases, only…
Cu@Fe3O4 heteroparticles with distinct morphologies were synthesized from organometallic reactants. The shape of the magnetic domains could be controlled by the solvent and reaction conditions. They display magnetic and optical properties that are useful for simultaneous magnetic and optical detection. After functiona…
Two cyano-bridged single-molecule magnets of {Fe(III)(4)Ni(II)(2)} and {Fe(III)(6)Ni(II)(3)} stoichiometry are described via their magnetic properties described in the frame of geometrical core distortions and orientations of their local anisotropy axes.
Shape tuning of CdS nanocrystals (NCs) by controlled growth and stabilization by tetraoctyl ammonium bromide ligands in non-aqueous medium is thoroughly investigated in this report. CdS nanorods and nanospheres were synthesized by manipulating the addition rate of the sulfide precursor. A higher addition rate (10 mL m…
An integrated freestanding zirconia (ZrO2) membrane was fabricated via a two-step electrochemical anodization with a zirconium (Zr) foil, followed by a simple and safe detachment of the formed ZrO2 membrane. The resulting membrane consists of highly ordered, vertically aligned, and one-side open ZrO2 nanotube arrays.…
In Situ Synthesis of Thiol-Capped CuInS2-ZnS Quantum Dots Embedded in Silica Powder by Sequential Ligand-Exchange and Silanization, Kim, Hyunki, Jang, Ho Seong, Kwon, Byoung-Hwa, Suh, Minwon, Youngsun, Kim, Cheong, Sang Hoon, Jeon, Duk Young
In this communication, we demonstrate our recent findings that carboxyl functionalized mesoporous polymer (CFMP) obtained by solvothermal polymerization of divinylbenzene and methacrylic acid possesses intrinsic peroxidase-like activity and can catalyze the oxidation of peroxidase substrate 3,3,5,5,-tetramethylbenzidi…
Water soluble, near infrared emitting type II/type I CdTe/CdSe/ZnSe quantum dots were synthesized in a simple one-pot procedure. The emission wavelength could be tuned from 530 nm (original CdTe core) to 670 nm and the particle size was determined by TEM measurement. The resulting quantum dots were used in subcutaneou…
A 2-hydroxyazobenzene platform has been evaluated to photorelease protons in aqueous solutions. Three different systems relying on molecular, supramolecular and polymeric strategies have been investigated in order to tune the water solubility and the thermodynamic and kinetic properties. This paper first reports on th…
Multifunctional drug delivery systems with favorable compatibility, high selectivity and efficiency are appropriate candidates for future medical applications. For this purpose, a multifunctional nanocomposite that enables selective magnetic resonance imaging and anticancer therapy by encapsulating hydrophobic superpa…
A kinetic elasto-plastic model of the dynamics of a flowing jammed material is proposed, supplemented with a phenomenological equation describing the coupling of the flow and the structure of the fluid. Coarse graining these equations yields a non-local constitutive law for the flow, with the introduction of the numbe…
Surface organic molecule modification of nanosized alumina particles is an effective way to improve its dispersion in polymer and to enhance the properties of polymer nanocomposites. In the present study, γ-aminopropyl triethoxysilane was used as a surface modification agent to react with the hydroxyl group on the sur…
We describe a robust and facile approach to the selective modification of patterned porous films via layer-by-layer (LBL) self-assembly. Positively charged honeycomb-patterned films were prepared from polystyrene-block-poly(N,N-dimethyl-aminoethyl methacrylate) (PS-b-PDMAEMA) and a PS/PDMAEMA blend by the breath figur…
Most natural and man-made fibers have circular cross-sections; thus the properties of materials composed of non-circular fibers are largely unexplored. We demonstrate the technology for fabricating fibers with predetermined cross-sectional shape. Passive hydrodynamic focusing and UV polymerization of a shaped acrylate…
To tailor clusters of active ions in glasses is laborious but critical for obtaining high efficient luminescence. Here, we present a facile method to tailor clusters of active ions by using one kind of porous host, the nanoporous silica glass. The white light-emitting glasses were prepared by sintering of nanoporous s…
An upconversion luminescence powder TiO 2 :(Er 3+ , Yb 3+ ) is prepared by a hydrothermal method and used to fabricate dye-sensitized solar cell (DSSC). The TiO 2 :(Er 3+ , Yb 3+ ) powder undergoes upconversion luminescence, converting infrared light which the dye can not absorb into visible light with wavelengths of…
PdO is one of the most important catalytic materials currently used in the industry. In redox catalytic reactions involving PdO, the bulk phase is an additional source of oxygen. This leads to strong transformations not only at the surface of PdO but also in the near sub-surface and bulk regions. The redox process is,…
Three types of atropisomeric unsymmetrical diimine complexes, tetrahedral (L(R)(Φ))MX(2) (M = Zn, Cd; X = Cl, Br; R = Me, CMe(3), OH, OMe, Cl; 1a-k, type-I), tetrahedral (L(Me2)(Φ))ZnBr(2) (2, type-II) and square planar (L(OH)(ϕ))PdCl(2) (3, type-III) with different photoluminescence properties, have been reported (L(…