Materials Literature
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A ZnO hierarchical structure built up of a well ordered nanorod array was obtained by a simple treatment of zincate ion aqueous solution and a zinc foil mixture with sunlight irradiation. The as-prepared ZnO nanorods are all single crystalline with a uniform [0001] preferential growth direction and have an average dia…
Abstract—We provide here a theoretical description of electromag-netic scattering by multi-wall carbon nanotubes based on an effective-boundary condition derived previously using a phenomenological quan-tum model. We present the basic analytical solution, extending it then to include the electromagnetic interaction be…
The diversity and potentials of the aerosol route for making functional materials at the nano size level are reviewed. Among the methods currently used for nanophase processing, synthesis through dispersion phase (aerosol) enables generation of ultrafine, either single or complex powders with controlled stoichiometry,…
When self-assembled peptide nanotubes are subjected to electron or ion beams, bending towards the direction of the beam is observed, resulting in changes to nanotube shape.
Neste trabalho estudou-se o desempenho mecânico e térmico de compostos de borracha natural (Hevea brasiliensis) de 4 diferentes clones (GT 1, IAN 873, PB 235 e RRIM 600) cultivados no Estado de São Paulo, assim como de uma mistura destes clones e de uma borracha comercial, GEB-1. Estas borrachas foram formuladas e vul…
The revised and expanded edition features over 14,000 definitions of fibres, fabrics, laws and regulations affecting textile materials and processing, inventors of textile technology and business and trade terms relevant to textiles. This dictionary is a useful reference for those working in the textile industry.
Two new three-dimensional manganese(II) coordination polymers were assembled by 1,2,3-triazole-4,5-dicarboxylate, showing unusual multi-step magnetization jumps at 1.8 K due to the competing interactions between the antiferromagnetic couplings with different amplitudes.
The novel characteristics of power propagation of guided modes in the chiral nihility flber have been investigated theoretically. The formulas of electromagnetic flelds in the core and cladding for guided modes are presented in detail. The dispersion equations, energy ∞ux and power of guided modes are derived. The num…
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Rubbers are elastomeric materials, whose dimensions can be greatly changed when stressed and which return to their original dimensions when the deforming stress is removed. It is the most fascinating material known to mankind on account of its range of applications in everyday life, defence, civilian purposes and its…
Synthesis of inorganic nanostructures designed from the internal crystal structure has been a subject of intensive research in the past decade. By virtue of structural understanding, attention was devoted to novel strategies to control morphology and phase formation of nanostructures, and even their assembly to hierar…
The bacterial cellulose (BC) secreted by Gluconacetobacter xylinus was explored as a novel scaffold material due to its unusual biocompatibility, light transmittance and material properties. The specific surface area of the frozen-dried BC sheet based on BET isotherm was 22.886 m2/g, and the porosity was around 90%. I…
Prior examinations of azobenzene-based cholesteric liquid crystals (azo-CLCs) have primarily focused on light-directed tuning of the photonic bandgap, with particular attention paid to the magnitude of the shift of the reflection (tuning range). One potential limitation of these materials is the days-long dark restora…
Hydroxyapatite is a calcium phosphate in the apatite group. It has numerous applications due to its particular properties including the sorption of metallic ions. This makes it useful for the treatment of contaminated groundwater and for soil decontamination. The least expensive source of hydroxyapatite for synthesis…
Besides thermodynamic information, vibration can identify modes of a molecule by comparison of the spectroscopy and parameterize force field. By the application of group theory with the state of projection operators, a systematic method for getting the vibrational model of molecules such as the (3, 0), (4, 0), (5, 0)…
A cyclen based lanthanide luminescent sensor, , has been developed by taking advantage of a combination of hydrogen bonding and f-metal ion coordination binding sites for anionic species. Analysis of the ground state, the emission from the singlet and the Tb(iii) excited states clearly show the ability of the Tb(iii)…
White-light emission is achieved from a single layer of diblock copolymer micelles containing green- and red-light-emitting dyes in the separate micellar cores and blue-light-emitting polymer around their periphery, in which fluorescence resonance energy transfer between fluorophores is inhibited due to micelle isolat…
Growth of extensively aligned hierarchical lead sulfide (PbS) nanowires with hyperbranched morphology has been achieved by synthesizing nanowires epitaxially on single crystal NaCl, rutile TiO2 (001), and muscovite mica in a chemical vapor deposition process. The morphology of as-grown PbS nanowires has been examined…
Knowledge of the carrier type (p- or n-type) and the carrier density of carbon nanotubes is critical in semiconductor applications such as thermoelectric power generation and Peltier cooling. In this paper, an experimental procedure for electrochemically characterizing multiwalled carbon nanotubes (MWCNTs) doped with…
Shape memory alloys (SMA) have been known for over five decades and modeling of their response has attracted much attention over the last two decades. Recent increase in the range of applications of these materials has lead to an increased focus on modeling their thermomechanical response. Various approaches ranging f…