Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
In the present paper, the precipitation behavior of secondary phases in Lean Duplex Stainless Steel (LDX) 2101 had been studied. The alloy has a typical ferritic-austenitic duplex structure after solution treatment. Isothermal ageing treatments were carried out over the temperature range from 700 to 850°C for the peri…
A new method for site-specific caging of plasmid DNA was developed to enable light-activation of gene expression in living cells by exposure to a low dose of light.
This paper describes the fabrication and investigation of morphologically stable model electrode structures with well-defined and sharp platinum/yttria-stabilized zirconia (YSZ) interfaces to study geometric effects at triple phase boundaries (TPBs). A nanosphere patterning technique using monodispersed silica nanopar…
Periodic mesoporous organosilicas (PMOs) with methylene (–CH2–), ethylene (–CH2CH2–), ethenylene (–CHCH–) and phenylene (–C6H4–) framework groups were synthesized with 2-dimensional hexagonal structures of very large cylindrical mesopores. A combination of a commercially available triblock copolymer Pluronic P123 (EO2…
Small variations in diameter and chirality could bring striking changes in the electronic and optical properties of single-walled carbon nanotubes (SWCNTs). Therefore, SWCNTs of a specific diameter/chirality are required for many applications. In this review we provide an overview of the recent progress in various che…
The formation mechanism of RSF alcogel was elucidated from morphological observations using TEM, AFM and confocal laser scanning microscopy (CLSM) as well as the kinetic studies by Thioflavin T fluorescence and rheological methods. An intriguing dual-structure—a nanofibrillar network on the nanoscale and a floc-like n…
Several experiments have recently found room-temperature ferromagnetism in graphite-like carbon based materials. This paper offers a model explaining such ferromagnetism by using an asymmetric nano-graphene. Our first typical model is C48H24 graphene molecule, which has three dihydrogenated (-CH2) zigzag edges. There…
The two new heterometallic cobalt(II)/titanium oxo cages octanuclear [Ti(7)O(5)(OEt)(19)(CoCl)] (1) and pentanuclear [Ti(4)O(OEt)(15)(CoCl)] (2) have been obtained via condensation reactions of Ti(OEt)(4) in the presence of CoCl(2). This simple methodology gives access to key well-defined molecular building blocks for…
Tissue engineering holds great promise as an alternative strategy to current treatment modalities of diseased or otherwise failed tissues. Most strategies of tissue engineering rely on three-dimensional porous scaffolds to mimic the natural extracellular matrix (ECM) as templates onto which cells attach, multiply, mig…
Now-a-days, the use of natural fiber reinforced composites starts gaining popularity in many applications due to the fact that this material possesses characteristics that are comparable to conventional materials. Among natural fibers, jute has been widely used for many such applications due to its availability, low c…
Axial ligation mechanisms of a metalloporphyrin, nickel(II) tetramesitylporphyrin (NiTMP), were investigated by static and transient X-ray absorption spectroscopy at Ni K-edge (8.333 keV). A surprisingly broad (i.e. ∼1.4 eV) linewidth for the 1s → 3dx2-y2 transition in the ground state was attributed to strong geometr…
In the present work new findings on the structure of the S-Au interface are presented. Theoretical calculations using a new semiempirical potential, based on density functional theory and a bond-order Morse potential, are employed to simulate the adsorption process in a more realistic way. The simulation results revea…
In the present study we report a simple and reproducible method to prepare highly ordered arrays of Fe3O4 superparamagnetic nanoparticles (MNPs) via block copolymer (BCP) self assembly. Pre-synthesized MNPs with a mean diameter of 6.1 nm are selectively segregated within the lamellae or hexagonally packed cylinders co…
Abstract A new accurate and fast interference method for determining ordinary and extraordinary refractive indices of nematic liquid crystals is presented and discussed. The method relies on microscopic measurements of distances between interference fringes appearing in polarised parallel coherent monochromatic light…
Polyester-grafted polyhedral oligomeric silsesquioxane (POSS) nanohybrids selectively produced by ring-opening polymerization of ε-caprolactone and L,L-lactide (A.-L. Goffin, E. Duquesne, S. Moins, M. Alexandre, Ph. Dubois, Eur. Polym. Journal, 2007, 43, 4103) were studied as “masterbatches” by melt-blending within th…
A new family of neutral mononuclear iron(II) spin crossover (SCO) compounds, Fe(L¹⁻⁶)₂ (L¹⁻⁶ = N'-((pyridin-2-yl)methylene)benzohydrazide (HL¹), N'-(1-(pyridin-2-yl)ethylidene)-benzohydrazide (HL²), N'-(phenyl(pyridin-2-yl)methylene)benzohydrazide (HL³), 2-hydroxy-N'-((pyridin-2-yl)methylene)benzohydrazide (HL⁴), 2-hy…
Recent self-assembly of ultra-bright fluorescent colloidal mesoporous (nanoporous) silica particles is highlighted. The particles can be up to two others of magnitude brighter than polymeric particles of comparable size assembled with quantum dots. Comparing with the maximum fluorescence of free dye in the same volume…
To improve the cold formability of AZ31 magnesium alloy sheets, we investigate texture control by rolling and annealing. The texture ideal for forming close to random orientation was obtained by annealing at 773 K before and after isothermal rolling at 298–573 K. For the randomizing process, such a high temperature in…
The influence of the benzotriazole (BTAH) inhibitor on the thickness of the oxide layer formed on Cu immersed in 3% NaCl solution was studied with angle-resolved X-ray photoelectron spectroscopy. The X-ray-induced Auger spectra were reconstructed with the Monte Carlo algorithm using the spectra of the basic constituen…
We report a new complex Eu(tta)(3).bpt (tta = thenoyltrifluoroacetonate; bpt = 2-(N,N-di-ethylanilin-4-yl)-4,6-bis(pyrazol-1-yl)-1,3,5-triazine) with excellent long-wavelength sensitized luminescent properties, in which four hydrogen atoms replace the methyl groups at the 3,3'- and 5,5'-positions of the pyrazolyl ring…