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。
Designing scaffolds to modulate protein adsorption is a key to building advanced scaffolds for tissue regeneration. Protein adsorption to tissue engineering scaffolds is critical in early cell attachment, survival, and eventual proliferation. The goal of this study is to examine the effect of functionalization on fibr…
ABSTRACT A novel phosphorous‐nitrogen containing intumescent flame retardant, toluidine spirocyclic pentaerythritol bisphosphonate (TSPB), was synthesized and characterized by Fourier transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR). Flame retardant rigid polyurethane foams (TSPB‐RPUF) were pre…
Composites of polydiphenylamine (D-PDPA) and zeolite Y with H+ as the cation (Y_H+) have been fabricated to be used as a sensing material towards non-halogenated and halogenated solvents (hexane, dichloromethane, 1, 2-dichloroethane, chloroform). These composites are toxic towards human and environment and are widely…
The most widely used thermochemical process for surface hardening of steels is case hardening. Using several different heat treatments, martensitic surface layers were formed on SAE 1020 steel into which carbon had been diffused. Case depths were measured by traditional destructive techniques. Barkhausen noise measure…
A facile one-pot heating process without any injection has been developed to synthesize different Cu-Zn-S-based nanocrystals. The composition of the products evolves from Cu(I)-doped ZnS (ZnS:Cu(I)) nanocrystals into heterostructured nanocrystals consisting of monoclinic Cu1.94S and wurtzite ZnS just by controlling th…
Understanding the structural characteristics and growth mechanism(s) are essential for generating core-shell nano-heterostructures with distinctive properties. Especially in lanthanide-based nanocrystals, rational design of the core-shell composition can be utilized to enhance/tune the optical properties of the final…
The preparation of efficient light emitting diodes requires active optical layers working at low voltage for light emission. Trivalent lanthanide doped wide-bandgap semiconducting oxide nanostructures are promising active materials in opto-electronic devices. In this work we report on the electrochemical deposition (E…
Electronic structures and optical properties of C-N-codoped anatase TiO2 were calculated by using GGA+U method based on the density functional theory. The calculated results showed that the N-doped, C-doped, and C-N-codoped TiO2 produced 2p states in band gap, and the band gaps of the three doped systems decreased com…
By using an elegant response function theory, which does not require matching of the messy boundary conditions, we investigate the surface plasmon excitations in the multicoaxial cylindrical cables made up of negative-index metamaterials. The multicoaxial cables with {\em dispersive} metamaterial components exhibit ra…
Dynamic phase transition phenomena in ultrathin films described by Blume-Capel model have been investigated using Monte Carlo simulations. Hysteresis loops, micromagnetic structures, and hysteresis loop area curves, as well as dynamic correlation between the magnetization and the external field have been studied as fu…
The growth of graphene on copper by atmospheric pressure chemical vapor deposition in a system free of pumping equipment is investigated. The emphasis is put on the necessity of hydrogen presence during graphene synthesis and cooling. In the absence of hydrogen during the growth step or cooling at slow rate, weak carb…
We devise an efficient practical method for computing the Kohn-Sham exchange-correlation potential corresponding to a Hartree-Fock electron density. This potential is almost indistinguishable from the exact-exchange optimized effective potential (OEP) and, when used as an approximation to the OEP, is vastly better tha…
Kenaf bast fibre filled poly(butylene succinate) (PBS) composites were made with adding 65 wt.% PBS, 30 wt.% KBF and 5 wt.% of unpurified or purified maleated PBS with concentrations of MA 3, 5, 7 and 10 phr. The composites were immersed in distilled water for a period of 90 days. In general, the equilibrium water abs…
A novel green approach by photocatalytic oxidative polymerization was developed that addresses and resolves current limitations of chemical polymerization of anilines. This process generates nanoparticles of the conducting polymer poly(N-ethylaniline) (PNETA) and poly-(N-methylaniline) (PNMTA) in a single step by usin…
The mechanism of CO oxidation by O 2 on Au atoms supported on the pristine and defected hexagonal boron nitride (h-BN) surface has been studied theoretically using density functional theory. Two possible routes for catalytic oxidation are considered. The first route consists in a preliminary dissociation of the adsorb…
Scheelite-type Eu3+-activated molybdates [(Sr1−2xEuxLix)MoO4 and Sr0.40Eu0.40MoO4)] were prepared by the high temperature solid state reaction. The phase purity of the phosphors was characterized by XRD. The PL spectra, the fluorescence decay curves and the dependence of luminescence intensity on temperature were inve…
A novel experiment validates 2D and 3D analytical solutions for the scattering of partially coherent beams from statistically rough surfaces. This research has applications in remote sensing using laser radar.
Herein, we present three imidazo[1,2-a]pyridin-2(3 H)-one derivatives that are diamagnetic in solution, but paramagnetic in the solid state, possibly owing to a stacking-induced formation of phenoxide-type radicals. Notably, a larger bathochromic shift of the absorption (even up to the near- infrared region) of these…
ABSTRACT Electrospun fibers for ferric ion (Fe 3+ ) detection were prepared from solutions of poly(methyl methacrylate) (PMMA), poly(vinyl chloride‐ co ‐vinyl acetate‐ co ‐vinyl alcohol) ((90 : 4 : 6), PVC terpolymer), and pyrene. The effects of PVC terpolymer content (0, 10, 20, 30, and 40% by weight of PMMA) and ele…
The conjugated polymer polypyrrole can be useful in a lot of applications such as LEDs, solar cells, organic thin film transistors, (bio)sensors, corrosion protection and antistatic layers. However, today, large area coating is still difficult. For this reason, plasma deposition at atmospheric pressure is presented as…