Materials Literature
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We performed systematic experiments to study the morphologies and microstructures of silver (Ag) films grown on different substrates and annealed at different conditions. It was found out that Ag microstructure varies widely versus the surface onto which Ag is plated and versus annealing conditions. The substrates use…
BACKGROUND: Wound infections caused by multidrug-resistant bacteria are a major issue in wound care. An occlusive dressing delivering an antimicrobial agent to the wound may be advantageous. The objective of this study was to evaluate an occlusive silk membrane loaded with colistin to establish an effective antimicrob…
Based upon the bionics principle, we present the design of a metal-dielectric-metal sandwiched leaf-shaped metamaterial, and the numerical simulation and experiment have confirmed an obvious left-handed transmission peak by this structure. The retrieved effective permittivity, permeability, and refractive index are al…
In the present paper X-ray microtomography technique has been applied to investigate internal, three dimensional structure of clay/polypropylene nanocomposite foams. Several sets of foam samples were prepared using the improved compression moulding technique that allows controlling independently the cells‘ size, cells…
Some applications of the commercial software v.4.12 in thermoluminescence (TL) studies have been reported. The PeakFit is a simple but convenient, powerful tool in extracting the two most important intrinsic trapping parameters namely, the activation energy (E) and frequency factor (s) of TL peaks of complex glow curv…
Phenylbutazone was crystallized from solutions by the liquid antisolvent recrystallization technique. Acetone was used as a solvent, and distilled water was selected as an antisolvent. The influence of processing parameters, such as drug concentration, temperature, injection rate of drug solution, and mixing method of…
Poly(ϵ-caprolactone) (PCL) oligomers with α-hydroxyl-ω-alkyl end groups (alkyl =–CH2–[CH2–CH2]m–CH3, where m = 1, 2, 4, 5, 6, 7, 8, 9, and 10) were synthesized by ring-opening polymerization (ROP) of ϵ-caprolactone (CL) catalyzed by ammonium decamolybdate (NH4)8[Mo10O34] and using aliphatic primary alcohols as initiat…
We describe how the full, isotropic and anisotropic, magnetisation of samples as small as tens of micrometers in size can be sensitively measured using a piezoresistive microcantilever and a small, moveable ferromagnet. Depending on the position of the ferromagnet, a strong but highly local field gradient of up to ∼42…
The ferritic steels used world wide for nuclear pressure vessels and irradiated structures contain manganese but knowledge of the role of manganese is mainly confined to the unirradiated condition. Information from the mid 1950s to 2009 on the influence of manganese on unirradiated and irradiated properties is analyse…
Nanotechnology is expected to open some new aspects to fight and prevent diseases using atomic scale tailoring of materials. The ability to uncover the structure and function of biosystems at the nanoscale, stimulates research leading to improvement in biology, biotechnology, medicine and healthcare. The size of nanom…
Binay and ternary blends of thermoplastic starch (TPS), poly(lactic acid) (PLA) and poly(butylene succinate) (PBS) were prepared using a one-step extrusion process. The concentration of TPS in both binary and ternary blends was fixed at 50 wt%, with the rest being PLA and PBS. A compatibilizer was used to improve the…
The technique of alloying X120Mn12 steel substrate by plasma transferred arc process was used for development of a surface having high wear resistance. High carbon ferrochromium, ferrotungsten, and nickel-aluminum intermetallic powders were combined to form M7C3 carbides inside Fe-based composite surface coating. The…
Intraband optical transitions in semiconductor quantum dots (QDs) in the forms of a parallelepiped, sphere, and cylinder have been considered. It is shown that the size dependence of the matrix elements of electron-photon interaction, which includes the intraband transitions, differs in the E · r and A · p representat…
The estimations of equivalent values for linear energy transfer of heavy charged particles based on the results of experimental investigations of sensitivity of LSICs to local radiation effects with the use of the procedure of local laser irradiation are presented. The possibility of recalculation of the energy of las…
Abstract Summary: Here, we have described a novel supramolecular complex (SMC) between poly(styrene)‐b‐poly(4‐vinylpyridine) (PS‐b‐P4VP) and 1‐pyrenebutyric acid (PBA) and studied of its self assembly in thin film. PBA will make supramolecular complex with the P4VP block due to strong hydrogen bonding between the carb…
The structural transformations accompanying the thermal dehydration of natural elpidite, Na 2 ZrSi 6 O 15 · 3H 2 O, have been studied by X-ray powder diffraction and IR spectroscopy. The crystal structures of both elpidite ( a = 7.1136(1), b = 14.6764(2), c = 14.5977(2) Å; sp. Gr. Pbcm ) and the dehydration product Na…
Electron beam initiated cross-linking on the 50/50 poly(vinyl chloride), PVC/acrylonitrile butadiene rubber, NBR blend was studied in the absence and presence of 4 phr trimethylolpropane triacrylate (TMPTA). The 50/50 NBR/PVC blend was prepared by mixing in a Brabender Plasticoder at 170°C. The blend was then irradiat…
Separation of aqueous isopropanol solutions by pervaporation using membranes based on composites of a polyimide with an aniline-anthranilic acid copolymer was studied.
Dodecaphenyl-substituted planar binuclear naphthalocyanine magnesium complex possessing an intense absorption in the near IR region up to 1100 nm has been synthesized on the basis of novel 2,3-dicyano-6,7-diphenylnaphthalene.
Effects of compatibilizers on impact properties of polypropylene/ polystyrene (PP/PS) blends were studied and carried out through melt blending using co- rotating twin-screw extruder. A combination of two compatibilizers, maleic anhydride grafted polypropylene (PP-g-MA) and styrene maleic anhydride (SMA) was applied i…