Materials Literature
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This study developed a novel drug carrier based on functional modified bacterial cellulose(BC) which was conjugated with Ibuprofen(IBU) by esterification. BC-Ibuprofen as the macro- molecular prodrugs and drug carrier used to improve the short half-life of the drug, and was able to control release through the hydrolys…
The effect of temperature on oxidation behavior of 3‐dimensional C/SiC composites coated with S i C and a‐ BC x coatings was investigated. Below 1000°C, C / S i C composites with S i C coating (sample SSS ) showed low residual strength, while the composites with a‐ BC x coating (sample BBB ) and the composites with a‐…
Four novel intermetallic silicides, RE5Mn4Al(23-x)Si(x) (x = 7.9(9), RE = Ho, Er, Yb) and Er44Mn55(AlSi)237, have been prepared by reaction in aluminum flux. Three RE5Mn4Al(23-x)Si(x) compounds crystallize in the tetragonal space group P4/mmm with the relatively rare Gd5Mg5Fe4Al(18-x)Si(x) structure type. Refinement o…
The surface treatment of In0.30Ga0.70N photoelectrode in different acid electrolytes (HCl, HBr and a H2SO4 aqueous solution) has been investigated. The highest photocurrent is obtained after the surface treatment in H2SO4 aqueous solution. After H2SO4 treatment, the In0.30Ga0.70N photoelectrode responds to 550 nm and…
Abstract The theoretical investigations on the effect of different plasmas on the growth and field emission properties of a spherical carbon nanotube (CNT) tip placed over cylindrical CNT surfaces have been carried out for the typical glow discharge plasma parameters. Different plasmas such as H2, Ar, CH4 and CF4 have…
Abstract Degradation mechanisms inherent to ferritic LSF‐SDC and LSCF‐GDC cathodes are studied by post‐mortem analysis of cells which suffered the most significant performance deterioration in a set of 18 500 h tests carried out under a specific experimental design. Three cathode processing parameters (composition, th…
We have simulated a photovoltaic (PV) pn junction where a texturing structure from Silicon nanowires (NWs) is added. While the NWs diameter was kept constant at a value of 100 nm, their lengths were varied over the range from 1 μm to 100 μm. A noticeable enhancement in the device efficiency is found. This improvement…
Botryoid-shaped reactive terpolymer nanoparticles, whose aldehyde-functional living domains are miniaturized into small-sized discrete "grapes" and attached onto the outwardly-branched scaffolds of fluorinated segments, are reported. These nanostructures can be fabricated by spontaneous structural reorganization of co…
An attempt has been made to fabricate p-ZnO thin films from the ZrN mixed ZnO targets by RF magnetron sputtering. The targets of different ZrN concentrations (0, 1, 2, and 4 mol%) have been prepared by solid-state reaction route. The ZrN-codoped ZnO films grown on semi-insulating Si (100) substrates have been characte…
Abstract We propose “superphenalenyl” as a novel π-conjugated planar hydrocarbon radical. Theoretical calculation was performed to evaluate its stability compared to phenalenyl and trioxotriangulene. The result of spin distribution and reaction energy supports its high stability. Molecular properties of this radical a…
Based on first-principles calculations, the Ga vacancy and antisite defect Se${}_{\mathrm{Ga}}$ are the only intrinsic shallow acceptors in Ga${}_{2}$Se${}_{3}$. The Ga interstitial is always a donor, $+$3 charge state under $p$-type conditions or $+$1 charge state under $n$-type conditions. Both the Se vacancy and Se…
We have used density functional theory with van der Waals (vdW) corrections to study the energetics, structure, and vibrational modes of physisorbed O 2 on the rutile TiO 2 (110) surface. We find that vdW interactions dominate the adsorption energy of physisorbed O 2 molecules. We have identified the ground state geom…
Carbon Nanotube (CNT), for its excellent mechanical, electrical properties and nano size, large special surface physical property, become the most promising material. But carbon nanotube can still fabricated in micro dimension, and can’t be made into macro size, so to the carbon nanotube filled composite can’t explore…
Abstract M2–xEuxSi5N8 (M = Ca, Sr, and Eu), well performing orange‐to‐red phosphors for white‐LED applications, were prepared with a novel production route based on employing molecular and polymeric precursors. The procedure presented allows a one‐pot, solution‐based synthesis of the desired phosphors by reacting SiCl…
Spatially controllable and broadband enhancement of quantum dot (QD) photoluminescence is demonstrated via photochemical deposition of silver nanoparticles on a domain patterned ferroelectric, as a consequence of confining the excitation field near the silver nanoparticle and coupling of the multiple plasmonic modes w…
Charge-transfer complex (CTC) formation between a conjugated polymer and low-molecular-weight organic acceptor is proposed to be driven by the neighbor effect. Formation of a CTC on the polymer chain results in an increased probability of new CTC formation near the existing one. We present an analytical model for CTC…
Abstract Phenol (P) and phenol-liquefied wood (LW; Cryptomeria japonica, Japanese cedar) have been reacted with formalin and ammonium hydroxide as a catalyst to prepare alcohol-soluble phenol-formaldehyde (PF) resins named PF and LWPF, respectively. The resins prepared were dehydrated, diluted with ethanol, and impreg…
Subtle differences: Two recent crystal structures have provided the first insight into nitrate/nitrite exchangers (example shown with bound nitrite), which are crucial to bacterial metabolism. A direct comparison of the structures reveals how the proteins can distinguish between their highly similar substrates and tra…
Finite size effects on the exchange-bias properties of patterned antiferromagnetic/ferromagnetic (IrMn/Co) nanodots were investigated experimentally and by numerical simulations. Both the dot lateral dimension (200 × 200 nm 2 –50 × 50 nm 2 ) and ferromagnetic layer thickness (2–25 nm) were varied. Two different behavi…
NaMnMoO3F3·H2O was precipitated at low temperature from aqueous dissolutions of Na2MoO4·2H2O in aqueous HF (or NaHF2) using either Mn(CH3COO)2·4H2O or MnF2 as manganese precursors. Chemical analysis, IR spectra, and effective paramagnetic moment are in agreement with the proposed formula. Electron microscopy studies i…