Materials Literature
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Usually, ceramic powders (SiO2, ZnO) are used as fillers for enhancing rubber mechanical strength. Poly-ethylene terephthalate (PET)-rubber nanocomposites were prepared by compression molding using titanium oxide (TiO2) nanoparticles as low content fillers (<2% wt). The interface properties of PET-rubber nanocomposite…
Abstract A new tetrathiafulvalene (TTF) derivative with two cholesterol units (compound 1 ) was synthesized and characterized. Gelation of n ‐hexane occurred after the hot solution of 1 was subjected to ultrasonic treatment for a few minutes. The resulting organogel was characterized with SEM, XRD and AFM. Besides hea…
Copper is one of the most important metals in modern electronic technology. Keeping in view its role in nanoelectronics, we have fabricated copper nanowires of diameters 100 and 200nm using Anodic Alumina and polymer membranes as templates. Electrodeposition technique based on the principle of electroplating was adopt…
The author reports the first all-ZnO microtetrapod-on-nanowire hybrids using the cost-effective Au nanoseed assisted open static atmospheric pressure vapor transport method. The unconventional ZnO flower analogue hybrid structure consists of center-tapered ZnO microtetrapods (typically 1-2 microm in dimension) on ZnO…
The La 2 Ti 2 O 7 :Pr 3+ , which emits red color luminescence upon UV light excitation, is prepared by the conventional high-temperature solid-state method and its luminescent properties are systematically investigated. X-ray diffraction, photoluminescence, afterglow emission spectra and long-lasting phosphorescence (…
Nanofibrous matrix was fabricated for the purpose of obtaining bi-phasic protein releases from a single protein delivery system. A block copolymer composed of poly(ethylene glycol) and poly(epsilon-caprolactone) was co-electrospun with protein solutions through a dual nozzle electrospinning system. Surface-exposed ami…
Poly (o-anisidine) (POA) and poly (o-anisidine) / multi-walled carbon nanotube (POA/MWCNT) films prepared upon glassy carbon electrode. Ni (II) is dispersed into POA and POA/MWCNT modified glassy carbon electrode by immersion of the modified electrode in nickel ions solution and used for electrooxidation of methanol i…
A new approach to interpreting the hole-activation model of a viscous flow of glass-forming liquids is proposed. This model underlies the development of the concept on the exponential temperature dependence of the free energy of activation of a flow within the range of the liquid-glass transition in complete agreement…
Abstract During the characterization of sediments formed in pipelines transporting hydrocarbons, the knowledge of the microbiological diversity becomes very interesting, especially when it is related to microbiologically influenced corrosion (MIC). The presence of microorganisms is considered as one of the factors tha…
The elastic properties of graphene have been described in terms of the Keating model. It has been shown that the two-dimensional structure of graphene is described by two independent elastic constants, like an isotropic solid. The Young’s modulus and the Poisson’s ratio have been determined. The results are compared w…
Porous silicon (PS) which has different properties from the bulk material due to the quantum confinement effects is beside other physical properties (e.g., light emitting) bioactive or even bioresorbable. The aim of this paper is to optimise the experimental conditions for the fabrication of nanostructured Si particle…
In this study, the sorption of Cu(II) ions from aqueous solution onto NaOH-treated kenaf core fibres was investigated. The kenaf core fibres were milled into different sizes and treated with NaOH before being used to investigate their efficiency in removing Cu(II) ions from aqueous solutions. Sorption studies were per…
The paper provides an example of a test programme, which aims to add to the evaluation of composite insulators after they have being supplied. It is to be considered as a tool to prove the product quality versus the submitted reports from international standards. The proposed tests are not selected to discriminate aga…
Sorption of heavy metal cations on rhyolitic and andesitic bentonites from Central Slovakia The main purpose of this work was to determine adsorption characteristics of heavy metal cations on two Slovak bentonites. Adsorption of Pb 2+ , Zn 2+ , Cu 2+ and Cd 2+ on Jelšový Potok (JP) and Lieskovec (L) bentonites was stu…
Open quantum dots provide a window into the connection between quantum and classical physics, particularly through the decoherence theory, in which an important set of quantum states are not "washed out" through interaction with the environment–the pointer states provide connection to trapped classical orbits which re…
Abstract A chrome‐free conversion coating treatment for magnesium by phytic acid solution was developed. The immersion experiments were used for evaluating the effects of the processing parameters (such as conversion temperature and time, concentration and pH value of phytic acid solution) on the corrosion resistance…
Thin film samples of multi-walled carbon nanotubes (MWCNTs) were irradiated with 120 MeV gold ions. Transmission electron microscopy (TEM) images of the pristine and irradiated samples were obtained. TEM pictures show that in the irradiated sample, the CNTs are in general shorter and some have their inner cores filled…
An investigation about the effect of boron contents and heat treatment on the corrosion resistance of a Ni-Ti alloy in simulated human body fluid environments has been carried out using electrochemical techniques. Tested alloys included 55 (wt %) Ni-45Ti with 250, 500 and 1000 ppm B with and without heat treatment at…
Synthesis of thioguanine (TG)-capped Au nanoparticles (Au@TG) and their enhanced in vitro antimicrobial and anticancer efficacy against Micrococcus luteus, Staphylococcus aureus, Pseudomonas aeruginosa, E. coli, Aspergillus fumigatus, Aspergillus niger and Hep2 cancer cell (Human epidermiod cell) have been reported. T…
The dependences of low-cycle durability of 11 corrosion-resistant steels of the main grades on gaseous hydrogen pressure within the range of 0.1…35 MPa at 293 K have been obtained. Homogeneous austenitic steels as well as the steels with intermetallide strengthening possess the highest service ability in hydrogen. Ni–…