Materials Literature
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AIMS: The spread of bacterial antibiotic resistance among clinical strains is a growing problem nowadays. Resistance in Enterococcus spp. strains has merited special concern of late, as they have become significant nosocomial pathogens. Hence, the use of compounds such as silver nanoparticles (AgNPs), displaying vario…
Self-assembly of pristine multi-walled carbon nanotubes (CNTs) in aqueous dispersion using a protein, bovine serum albumin (BSA), has been demonstrated. Step-wise conformational changes in BSA as a function of temperature have been deployed to direct the assembly of nanotubes. More specifically, CNTs distributed rando…
Crystallization fouling during nucleate pool boiling is characterized with relatively rapid formation of a hard and brittle deposit layer. In this study, the impact of thermal shock is experimentally investigated on cleaning of various tubes when subjected to fouling of CaSO4 solutions. The heat transfer tubes include…
The corrosion behavior of pure and lanthanum doped, sol – gel‐derived, mullite ceramics in nitric acid aqueous solutions with various concentrations was investigated and compared. Samples sintered at a temperature of 1600°C for 4 h were characterized using powder X‐ray diffraction, SEM , and energy dispersive X‐ray sp…
A finite element method was developed to predict the thermal conductivity of emulsion-polymerized styrene-butadiene rubber composites filled with silicon carbide (SiC). Two-dimensional finite element method models, which involved the effects of aspect ratio, shape, particle size and mass ratio of silicon carbide, were…
Drei wichtige Schritte bilden die Basis für das im Titel bezeichnete Verfahren: Aufschluss der Polymere, durch Hilfsbasen unterstützte katalytische Hydrodehalogenierung von Borhalogeniden und Basenaustausch im Boran-Amin-Addukt. Weiterhin bietet der Prozess eine neue Möglichkeit der effizienten Erzeugung von Borhydrid…
Hexagonal boron nitride (hBN) possesses extraordinary potential for solid-state neutron detector applications. This stems from the fact that the boron-10 (10B) isotope has a capture cross-section of 3840 barns for thermal neutrons that is orders of magnitude larger than other isotopes. Epitaxial layers of hBN have bee…
Measurements of interactions between nanoparticles and DNA at the molecular level offer insight to the rationale design of nano-complexes for biomedical imaging and sensing. This commentary describes the work of Kungang Li and colleagues, who report a study of atomic force microscopy-enabled single molecule imaging of…
Developing 1-Dimensional Transient Heat Transfer Axi-Symmetric MM to Predict the Hardness, Determination LHP and to Study the Effect of Radius on E-LHP of Industrial Quenched Steel Bar
Cysteine capped magnetite nanoparticles (10 to 20 nm) were synthesized via coprecipitation method under ultrasonic irradiation. The influence of pH value of the solution and cysteine addition on the size distribution and hydrodynamic size of nanoparticles were studied via TEM and PCS methods, respectively. The crystal…
A new nickel tellurite oxohalide, Ni(15)Te(12)O(34)Cl(10), has been prepared by chemical vapour transport reactions and the crystal structure was determined by single-crystal X-ray diffraction. The compound crystallizes in the triclinic space group P1[combining macron] with the pseudomonoclinic cell parameters a = 10.…
A novel kind of damping composite was prepared, which consisted of the tetrapod-shaped ZnO whisker and polyurethane cross-linked epoxy/polyurethane. The dynamic mechanical properties of these materials were investigated by dynamic thermal analysis. Results indicated that the effective damping temperature range (tan δ…
Bio-nanohybrids prepared by assembling natural polymers (polysaccharides, proteins, nucleic acids, etc) to nanosized silicates (nanoclays) and related solids (layered double hydroxides, LDHs) give rise to the so-called bionanocomposites constituting a group of biomaterials with potential applications in medicine. In t…
Two photochromic spirodihydroindolizine/betaine systems for tethering to peptides and proteins via a maleimide function have been prepared. The absorption spectra of the betaines are in the red region of the visible spectrum and in the near-IR spectral domain, which are suitable energies of light for future in vivo ap…
Abstract This work reports the synthesis of a new water‐soluble conjugated polymer, which interacts specifically with heavy metal ions such as lead and mercury. In order to produce such a material, the fluorescent properties of polythiophene, which constitutes the polymer backbone, were combined with the chelating cap…
Fe-ZSM-5 zeolites with a Si/Al ratio equal to 25 and 50, comprising 0.4 wt% of Fe and calcined at different temperatures, were used for oxidative dehydrogenation (ODH) of C2–C4 hydrocarbons. The calcination temperature (873 or 1173 K) slightly influenced hydrocarbon conversion, while it distinctly affected the selecti…
A tunable surface that promotes either hydrophobic or hydrophilic behavior of TiO 2 films is produced with aerosol deposition. This process is capable of mass production by high‐speed coating at room temperature without any wet chemicals, and therefore the process has the potential to be economically viable, energy ef…
Martin Butschiesa, Johannes Christian Haenlea, Stefan Tussetschlägera & Sabine Laschata* a Institut für Organische Chemie , Universität Stuttgart , Stuttgart , Germany * E-mail: sabine.laschat@oc.uni-stuttgart.de A series of guanidinium salts 1(C n ) m –4(C n ) m X bearing phenyl alkoxybenzoate cores have been synthes…
This article presents an experimental investigation on developing wood plastic composites reinforced with continuous glass fibers in an extrusion process. The main role of wood component in wood plastic composite is mainly as a filler to reduce cost, and not reinforcing. Adding wood component causes a noticeable reduc…
The Red Queen remains (700 A.C.) found at Palenque, México, are examples of cinnabar (HgS) application to royal remains during pre-Hispanic times. The Red Queen remains are those of a ca. 30–35-yr-old female and present a striking similarity to the remains of another Mayan woman found at Copan, Honduras. Thus, coverin…