Materials Literature
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Novel nanoscale fluorescent materials are integral to the progress of emergent fields such as nanobiotechnology and facilitate new research in a variety of contexts. Sol-gel derived silica is an excellent host material for creating fluorescent nanoparticles by the inclusion of covalently-bound organic dyes. Significan…
We developed a new red phosphor, , which has a broad excitation band extended from UV region to . At the optimum Eu concentration of , quantum output is seven times higher than for a conventional red phosphor, , under excitation. The phosphor is also more efficient than or at any excitation wavelength. One reason of t…
Abstract Targeting specific sites in vivo for the delivery of therapeutic compounds presents a major obstacle to the treatment of many diseases. One targeted delivery technique that has gained prominence in recent years is the use of magnetic nanoparticles. In these systems, therapeutic compounds are attached to bioco…
Current efforts and success of nanoscale science and technology are related to the fabrication of functional materials and devices in which the individual units and their spatial arrangement are engineered down to the nanometer level. One promising way of achieving this goal is by assembling colloidal inorganic nanocr…
Developing scaffolds that mimic the architecture of tissue at the nanoscale is one of the major challenges in the field of tissue engineering. The development of nanofibers has greatly enhanced the scope for fabricating scaffolds that can potentially meet this challenge. Currently, there are three techniques available…
Several polymers have been used to detect nitroaromatic explosives by a variety of transduction schemes. Detection relies on both electronic and structural interactions between the sensing material and the analyte. Quenching of luminescent polymers by electron deficient nitroaromatic explosives, such as trinitrotoluen…
In this review, a brief synopsis of superhydrophobicity (i.e. extreme non-wettability) and its implications on marine fouling are presented. A short overview of wettability and recent experimental developments aimed at fabricating superhydrophobic surfaces by tailoring their chemical nature and physical appearance (i.…
In this review, we highlight particle based crystallization pathways leading to single crystals via mesoscopic transformation. In contrast to the classical mechanism of atom/molecule mediated growth of a single crystal, the particle mediated growth and assembly mechanisms are summarized as "non-classical crystallizati…
Nanotechnology has emerged at the forefront of science research and technology development. Carbon nanotubes (CNTs) are major building blocks of this new technology. They possess unique electrical, mechanical, and thermal properties, with potential wide applications in the electronics, computer, aerospace, and other i…
Dissolution of cellulose with ionic liquids allows the comprehensive utilization of cellulose by combining two major green chemistry principles: using environmentally preferable solvents and bio-renewable feed-stocks. In this paper, the dissolution of cellulose with ionic liquids and its application were reviewed. Cel…
Gadolinium(III) complexes are often used in clinical MRI to increase contrast by selectively relaxing the water molecules near the complex. There is a desire to improve the sensitivity (relaxivity) of these contrast agents in order to detect molecular targets. This tutorial review describes the molecular factors that…
We propose an approach to far-field optical imaging beyond the diffraction limit. The proposed system allows image magnification, is robust with respect to material losses and can be fabricated by adapting existing metamaterial technologies in a cylindrical geometry.
The surface plasmon resonance peaks of gold nanostructures can be tuned from the visible to the near infrared region by controlling the shape and structure (solid vs. hollow). In this tutorial review we highlight this concept by comparing four typical examples: nanospheres, nanorods, nanoshells, and nanocages. A combi…
Underside corrosion of a failed above ground storage tank (AST) was \ninvestigated by the physio-chemical analysis of water sample that was \ningress between the tank bottom plate and the concrete foundation. The \nresults of the water sample analysis showed pH (5.8), temperature \n(30°C), Conductivity…
Mechanical alloying of Mn-30at. % Al powder mixture resulted in the formation of an α-Mn solid solution in the early stage of milling with the subsequent formation of β-Mn phase after 30h milling. Thermal treatment at 10600 C, confirmed the recently extension of the high temperature ε-phase. However, the presence of i…
Nanocrystalline (NC) materials are exhibiting small particle size and large surface area which may be applied for gas sensors. Nano-crystalline TiO2 films are synthesized by spray pyrolysis technique. The XRD investigation for the deposited films shows that they have only polycrystalline anatase phase with nano-size.…
Abstract The article deals with the analysis of modern technologies of surface hardening and restoration of the working parts of aviation products. The technologically sophisticated methods of obtaining multifunctional composite coatings with an application of effective sources of energy are described. These methods p…
We report the crystal chemical and structural characterization of an unusual CO3-bearing sodalite-group mineral. The sample was found in metasomatic ejecta from Mount Vesuvio, Italy. The mineral is characterised by an a cell parameter of 9.0352(2) Å and by a formula, recalculated from EMPA, of (Na5.28K1.40Ca1.23Fe0.0…
Nous faisons le point des effets de l'irradiation par les neutrons sur les composites SiC/SiC et nous discutons les proprietes de ces composites necessitees par les applications nucleaires. Les effets d'irradiations a haute temperature, jusque 1600 °C, qui n'ont pas ete determines par irradiations aux neutrons, ont et…
A series of ferrocene-containing collagen models Fc-CO-(Pro-Hyp-Gly)n-Cys (n = 4 (1), 6 (2), 7 (3), 8 (4), 9 (5)) were synthesized by solid-phase synthesis. Biophysical studies using circular dichroism (CD) show that these collagen analogues form triple-helical conformations, and the peptides showed a range of thermal…