Materials Literature
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Porphyrin-peptide conjugates bearing multiple nuclear localization sequences (NLS) could show increased tumor cell uptake and affinity for nuclear receptors, and consequently increased photodynamic activity. Previous studies suggest that an increase number of NLS might enhance the nuclear uptake of proteins and other…
Uniform Cu2Cl(OH)3 and Cu2(NO3)(OH)3 nanoparticles are firstly prepared and characterized based on various analytical tools (i.e. DLS, SEM, XRD, FT-IR, UV-Vis, and DTA-TG). Accordingly, Cu2Cl(OH)3 and Cu2(NO3)(OH)3 exhibit mean diameters of 51 nm and 37 nm, respectively. Both nanomaterials show a bright green colour w…
We have investigated the adsorption of O(2) on Au(n) clusters (n = 1-6) supported by an ultra thin (3ML)MgO(001) film on Mo metal via density functional theory calculations. On thin films, these small clusters have chain like structures and their electronic states resemble 1D quantum well states. The Au(1-3) are charg…
An easy method to prepare carbon nanotubes (CNTs) has been demonstrated using a two‐step refluxing and calcination process. First, a readily available inorganic salt, , used as the catalyst precursor was dissolved in the high‐boiling‐point organic solvents (alcohols or polyhydric alcohol) by refluxing at 190 ∘ C for 3…
A hybrid organic inorganic layered double hydroxide incorporating 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPS) is characterized by means of XRD, FTIR, and XPS. The in situ polymerization is scrutinized by 13C CPMAS as well as by a set of XRD experiments with varying temperature. It is found that the in situ po…
The interfacial behaviour of alumina/carbon refractories with liquid iron was investigated at 1550°C, with emphasis on the chemical interactions occurring both in the interfacial region as well as in the bulk of the refractory. The sessile drop technique was used to determine the interfacial wetting behaviour and the…
CePO(4) nanorods decorated with QDs (QDs@CePO(4)) can be prepared in a sequential, aqueous procedure under continuous flow using a rotating tube processor and a narrow channel reactor. The emission from the QD@CePO(4) is tunable from green to red by simply adjusting the feeding rate, which in turn regulates the partic…
Starch-based vesicles with controlled size have been successfully achieved by a simple nanoprecipitation procedure from starch mixed ester.
Two novel deoxybenzoin-containing monomers, a diisocyanate and a diol, were synthesized and used to prepare polyurethane materials and foams. 4,4′-Diaminodeoxybenzoin was prepared by Ullmann coupling of 4,4′-dibromobenzil with tert-butyl carbamate. Reduction of one of the carbonyl groups, and t-Boc deprotection, gave…
The reaction of Mn(O₂CMe)₂·2H₂O with Me-saoH₂ (Me-saoH₂ = 2-hydroxyphenylethanone oxime) in MeCN forms the complex [Mn(III)₄(Me-sao)₄(Me-saoH)₄] (1) in good yields. Replacing Me-saoH₂ with Naphth-saoH₂ (Naphth-saoH₂ = 2-hydroxy-1-napthaldoxime) in the presence of CH₃ONa forms the complex [Mn(III)₄(Naphth-sao)₄(Naphth-…
Three-dimensionally interconnected, highly porous silica materials with ordering on three different scales, that is, macropores (10-30 μm), interconnecting windows (3-5 μm), and nanoporous walls (∼80 nm), are prepared via a dual-templating approach.
Silver nanoparticles were precipitated at 70°C in a reverse microemulsion containing a high concentration of 0.5 M silver nitrate aqueous solution, toluene as organic phase, and a mixture of surfactants sodium bis (2‐ethylhexyl) sulfosuccinate/sodium dodecyl sulfate (2/1, w/w). Nanoparticles were characterized by X‐ra…
CuLa1−xEuxO2 polycrystalline specimens were successfully prepared by the solid-state reaction method. X-ray diffraction measurement revealed that CuLa1−xEuxO2 (0.01 ≤ x ≤ 0.2) was a single phase with the delafossite structure with successful substitution of Eu3+ into the La3+ site at the center of the LaO6 octahedron.…
Doping with some metals (Fe, Cu, Ga, Mn, Al) reduces or removes the strong thermal hysteresis in the giant magnetocaloric alloys Gd 5 (Si x Ge 1− x ) 4 . We present heat capacity and direct measurements of the isothermal entropy change, Δ S T , and adiabatic temperature increment, Δ T S , of Gd 5 Si 2 Ge 1.9 Ga 0.1 .…
Red emission (613 nm) properties of (M: Al, Ga) powders under charge-transfer band (CTB, ) and near-UV (397 nm) excitation were investigated. In , with an increase in the Eu content , the red emission intensity under 397 nm excitation increased abruptly up to and then saturated at , whereas that under CTB excitation b…
This article addresses the effect of montmorillonite (MMT) on the morphology, and mechanical properties of polypropylene (PP). PP/MMT nanocomposites have been prepared by melt mixing using maleic anhydride grafted polypropylene (MAH-g-PP) as compatibilizing agents. Melt mixing was achieved using twin screw extruder. T…
The electron paramagnetic resonance spectra of the glasses with Li 2 B 4 O 7 and KLiB 4 O 7 compositions doped with Mn and Cu were investigated. On the basis of obtained EPR spectra analysis it was shown that the Mn and Cu impurities are incorporated into the glass network as Mn 2+ ( 6 S 5/2 , 3d 5 ) and Cu 2+ ( 2 D 5…
Using dissipative-particle-dynamics simulations, we study the effects of an embedding bulk fluid on the phase separation dynamics in a thin planar liquid film. The domain growth exponent is altered from 2D to 3D behavior upon the addition of a bulk fluid, even though the phase separation occurs in 2D geometry. Correla…
Applications of the nonlocal models are hampered by unresolved problems in the treatment of boundary conditions. There are many competing variants such as deleting the outside protruding part of nonlocal integral, with rescaling on the interior part, or moving the outside protruding part into a Dirac delta function at…
Nanotechnology is about small things and medicine usually deals with bigger things - with patients and their diseases. The ultimate goal of all medical sciences is the healing of diseases whenever possible, otherwise the abatement of suffering. The first step of a successful medical treatment is the correct diagnosis…