Materials Literature
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Abstract Co3O4 nanostructures have been synthesized via a hydrothermal-assisted thermal treatment process. A new complex formulated as [Co(py)2(H2O)2(NO3)2] was synthesized, and then used to prepare Co3O4 nanostructures. Cubic phase of spinel Co3O4 nanostructures with particle size of about 39 nm could be produced aft…
Abstract Cylindrical rod‐shaped copper succinate nanoparticles were prepared using the electrochemical method. Taguchi robust design was applied to optimize experimental parameters such as succinic ion concentration (Co), current applied (Iap), and pH (pH). The obtained copper succinate nano‐rods were further thermall…
It was found that if introduced into a nutrient medium of 0.05-1 g/L nano-SiO2, the oxidant activity (OA) of the culture medium (CM) of bacilli increased by 43.2-60.1 % and the antioxidant activity (AA) decreased by 4.5-11.8 %. SiO2 nanoparticles had different effects on antiradical activity (ARA) of the CM of Bacillu…
A siloxane-containing diphenol is synthesized from 1,1,3,3-tetramethyldisiloxane and o-allylphenol, followed by the Mannich condensation with aniline, methylamine, and formaldehyde yielding two siloxane-containing benzoxazines. The onset polymerization temperature of aniline-based benzoxazine is higher than that of th…
ABSTRACT The miniaturization trend of electronic devices requires that components have a high heat dissipation in industrial applications and in daily life. In this context, a highly thermally conductive film was fabricated with silver nanowire (AgNW) and poly(vinylidene fluoride) (PVDF) with a bar‐coating method. The…
UNLABELLED: Sulfolobus islandicus serves as a model for studying archaeal biology as well as linking novel biology to evolutionary ecology using functional population genomics. In the present study, we developed a new counterselectable genetic marker in S. islandicus to expand the genetic toolbox for this species. We…
The formation of bis-hexahapto bonds between graphitic surfaces can electronically interconnect the surfaces of carbon materials containing the polybenzenoid ring system and increase the conductivity without introducing a strong perturbation to the in-plane electronic structure. In this paper, we report the use of org…
Abstract The three catalysts Mn/Ce‐ZrO2, MnCo/Ce‐ZrO2, and Mn/Co‐Ce‐ZrO2 were applied to remove NO in simulated flue gas. Their selective catalytic reduction (SCR) activity and potassium resistance were studied. Catalysts with Co as a modifier of the support exhibited the best SCR activity. The catalyst Mn/Co‐Ce‐ZrO2…
BACKGROUND: Enterococci have emerged as more virulent and multidrug-resistant in community and hospital settings. The emergence of vancomycin resistant enterococci (VRE) in hospitals has posed a serious threat to public health. The widespread use of antibiotics to treat VRE infections has resulted in the development o…
This study investigates the effects of glass fiber on the mechanical and thermal properties of bacterial polyester, poly(3‐hydroxybutyrate‐co‐3‐hydroxyhexanoate) (PHBH). PHBH composites were prepared by melt‐compounding and injection molding, using PHBH with 3‐hydroxyhexanoate (3HH) molar fractions of 5.6% and 11.1%,…
Polymer/clay nanocomposites are a new class of composites with polymer matrices where the disperse phase is a silicate with elementary particles that have at least one of dimensions in nanometer order. Polyamide 6/Brazilian organoclay nanocomposites were prepared by melt intercalation, and the mechanical, thermal and…
ABSTRACT The speed and scalability of film fabrication can dictate the translation of technologies from the laboratory scale to industrial level mass production. Spray‐assisted layer‐by‐layer (LbL) film assembly enables the rapid coating of geometrically complex and porous substrates with functional polyelectrolyte mu…
ABSTRACT The effects of liquid‐type additives on the morphology, thermal conductivity, and mechanical strength of polyurethane (PUR) foams were investigated. The PUR foams synthesized with perfluoroalkane showed a smaller average cell diameter and a lower thermal conductivity than PUR foams prepared with propylenecarb…
A new type of microcapsule has been prepared with urea–formaldehyde (UF) as shell material and graphene oxide (GO)–epoxy resin with acetone as standard solvent between them as the core material. In situ polymerization procedure was used, employing aqueous condition for the synthesis step. The chemical structures of th…
In Jam petrochemical complex (JPC), Iran, the plates (ASTM A.240 Type.316) of some heat exchangers have been damaged due to the occurrence of cracks at the sitting place of gaskets. A comprehensive failure analysis including the chemical analysis, visual inspection, optical microscopy and scanning electron microscopy…
Targeted nanocarriers may offer a new approach to improve the efficacy and tolerability of cisplatin, which are commonly used to treat cancers as a first line chemotherapy for most types of cancer. In the present study, we have developed EGFR-targeted albumin-cisplatin nanoparticles for tumor targeted delivery of cisp…
We formulated a pressure equation for bubbles performing nonlinear radial oscillations under ultrasonic high pressure amplitudes. The proposed equation corrects the gas pressure at the gas-liquid interface on inertial bubbles. This pressure formulation, expressed in terms of gas-Mach number, accounts for dampening due…
Polyamidoamine dendrimers are potential candidates for drug delivery systems due to their remarkable cell-penetrating power that results from their strong positive surface charge. However, the positively charged surfaces always lead to serious cytotoxicity and the rapid clearance of polyamidoamine in vivo, which limit…
To identify the conditions under which ɷ assists α formation in a near-β Ti alloy, we employed transmission electron microscopy and atom probe tomography to study α precipitation in alloys designed to contain two different types of ɷ. Coherent incommensurate embryonic ɷ formed upon isothermal ageing, does not directly…
Lithium - the lightest alkali metal - exhibits unexpected structures and electronic behaviour at high pressures. As the heavier alkalis, Li is bcc at ambient pressure and transforms first to fcc (at 7.5 GPa). The post-fcc high-pressure form Li-cI16 (at 40-60 GPa) is similar to Na-cI16 and related to more complex struc…