Materials Literature
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Ceria nanoparticles (nano-ceria) are widely used for various applications such as catalytic converters for automobile exhaust, ultraviolet absorber, and electrolyte in fuel cells. Their potential impacts on the environment and human health have also drawn people's attention. The present study was designed to explore t…
Recent advances in design and controllable synthesis of rattle-type silica nanoparticles have led to a dramatic expansion of their potential drug delivery application. However, the relationship between physico-chemical parameters and bio-effects of silica nanoparticles is still unclear. In the present study, we invest…
Abstract Soil physical fractionation techniques may provide indicators of changing soil organic carbon ( SOC ) content; however, they have not been widely tested on volcanic soils (Andisols). In this study, we assessed two fractions as potential indicators in volcanic soils, using two sites in Chile converted from nat…
Quinate dehydrogenase (QDH) catalyzes the reversible oxidation of quinate to 3-dehydroquinate by nicotineamide adenine dinucleotide (NADH) and is involved in the catabolic quinate metabolism required for the degradation of lignin. The enzyme is a member of the family of shikimate/quinate dehydrogenases (SDH/QDH) occur…
Three controlled/living polymerization processes, namely atom transfer radical polymerization (ATRP), ring-opening polymerization (ROP) and iniferter polymerization, and photoinduced radical coupling reaction were combined for the preparation of ABCBD-type H-shaped complex copolymer. First, α-benzophenone functional p…
Nauclea latifolia is known to possess various therapeutic properties. The present study was designed to evaluate the anti-ulcer activity of aqueous leaf extract of N.latifolia against indomethacin-induced gastric ulcers in rats. Five groups of albino rats were pre-treated orally with: vehicle, distilled water (ulcer c…
An argon atmospheric pressure plasma jet (APPJ) is used to generate low‐temperature plasma (LTP) for the treatment of B16 murine melanoma cells cultured in vitro. Experimental results reveal that argon APPJ significantly decreases the cell viability, melanin synthesis, and tyrosinase activity of melanoma cells in a do…
Quantum dots have experienced rapid development in imaging, labeling and sensing in medicine and life science. To be suitable for polymerase chain reaction (PCR) assay, we have tested QD thermal cycling durability and compatibility, which have not been addressed in previous reports. In this study, we synthesized CdSe/…
Photoirradiation effects in correlated electrons coupled with localized spins are studied based on the extended double-exchange model. In particular, we examine melting of an antiferromagnetic (AFM) charge order insulating state by varying the light intensity. When intense light is irradiated, the AFM insulating chara…
Ceramics of solid solutions (1 − x ) BaTiO 3 – x ( Bi 1/2 A 1/2 ) TiO 3 (A = Ag , Li , Na , K, Rb , Cs , x ≤ 0.20) were prepared and their crystal structures, dielectric, ferroelectric, and piezoelectric properties were investigated. It was found that ( Bi 1/2 A 1/2 ) TiO 3 ‐type doping compounds broadened the tempera…
This research endeavored to develop a new application of polypyrrole (PPy) and polyaniline (PAn) synthesized in the presence of ferric chloride and potassium iodate as oxidants and coated on carbon nanotubes (CNT). The removal of heavy metals, anions, and chemical oxygen demand from paper mill wastewater was compared…
A finite-difference computer program (COSIM) has been written which models the one-dimensional, diffusional transport associated with high-temperature oxidation and interdiffusion of overlay-coated substrates. The program predicts concentration profiles for up to three elements in the coating and substrate after vario…
A research study has been conducted on compression after impact of thin facesheet honeycomb core sandwich panels. This paper is focused on the modeling and analysis used to simulate the tests described in a companion paper. Of interest are composite sandwich panels with aerospace applications, which contain either a 3…
Considering the influences of silicon (Si) surface potential and postannealing in oxygen ambient, a steady-state current model of Al-SiOxNydouble structure was proposed. For Ta2O5layer with different technological history, the dominated conduction mechanism for the as-deposited layer is Poole-Frenkel emission and Scho…
Phase equilibria of the Na,K,Mg,Na,K,Mg,Ca//SO 4 ,Cl-H 2 O system are studied at 50°C via translation in the crystallization range of glaserite (3K 2 SO 4 · Na 2 SO 4 ). It is found that glaserite as the equilibrium phase of the investigated system at 50°C participates in the formation of 21 invariant points, 21 monov…
We describe the single-step synthesis of Co9S8 nanowires encapsulated in carbon nanotubes (CNTs) from a dimethyl sulfide precursor, using a simple chemical vapor deposition method. The optimum dimethyl sulfide vapor concentration for the production of Co9S8 nanowires-filled CNTs is around 1.26-1.47%. The carbon nanotu…
Periodic density functional theory (DFT)+U calculations using sufficiently large supercells to explicitly account for dopant disorder are reported for undoped Ca${}_{2}$CuO${}_{2}$Cl${}_{2}$ and for the doped Ca${}_{2\ensuremath{-}x}$Na${}_{x}$CuO${}_{2}$Cl${}_{2}$ ($x$ $=$ 0.125 and $x$ $=$ 0.250). For the undoped ma…
Cu species was introduced into TiO2 nanotube prepared by hydrothermal method via a facile adsorption-dry process. The fabricated sample exhibited excellent H2 generation activity (76.3 mmol h(-1) g(-1)(catalyst)), which was higher than most of the reported Cu incorporated TiO2 samples, even superior to some Pt/Pd/Au/N…
Earthbag construction is a sustainable, low-cost, housing option for developing countries. Earthbag structures are built of individual soil-filled fabric bags (i.e., sand bags) stacked in a running bond pattern. Once stacked, earthbags are compacted and the soil inside the bags is dried in-place to form earthen bricks…
Hydrogen bonding self-assemblies were formed in an aqueous medium from a pair of an amphiphilic ABA triblock copolymer and a hydrophobic homopolymer, both with a triple hydrogen bonding site that was complementary to each other and precisely placed at the main-chain center: (PEGMA)m–(MMA)n–ADA–(MMA)n–(PEGMA)m and (MMA…