Materials Literature
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Drilling of fiber reinforced composite materials presents a plethora of questions to the engineers and scientists. A number of research endeavors have been made in the recent years to fully characterize the drilling process of fiber reinforced composite materials. The efforts have been made in the direction of optimiz…
In this study, we prepared a series of photoluminescent gold nanodots (Au NDs) from gold nanoparticles (∼3 nm) via etching with 11-mercaptoundecanoic acid (11-MUA) under various ionic strengths or various co-accessing alkanethiol (RSH) ligands. We have demonstrated that self-assembly of 11-MUA molecules on Au NDs unde…
In this work, tetraphenylethene (TPE) equipped with thymine, TPE–T, was synthesized and used as a fluorescence biosensor for differentiating ssDNA from dsDNA. TPE–T is a “turn-on” fluorescence probe once it forms hydrogen bonds with single-stranded adenine-containing oligonucleotides with high sensitivity and specific…
ZrB 2 –SiC green ceramics were fabricated by aqueous gelcasting based on single AM ‐ MBAM , single Na‐alginate, and double gel network system. ZrB 2 –SiC ceramics obtained by aqueous gelcasting based on AM ‐ MBAM and Na‐alginate double gel network had a dramatically highest green strength of 98.6 ± 5.1 MP a, which was…
Arrays of Ni100−xCux nanowires ranging in composition 0 ≤ x ≤ 75, diameter from 35 to 80 nm, and length from 150 nm to 28 μm have been fabricated by electrochemical co-deposition of Ni and Cu into self-ordered anodic aluminum oxide membranes. As determined by X-ray diffraction and Transmission Electron Microscopy, the…
The redox properties of copper, nickel, and cobalt complexes (MePh 3 P)[M(bdt) 2 ] with the ligand benzene-1,2-dithiolate (bdt) and synthesized complexes (MePh 3 P)[M(bdtCl 2 ) 2 ] with the ligand 3,6-dichlorobenzene-1,2-dithiolate (bdtCl 2 ) have been studied by cyclic voltammetry and in situ EPR–UV/vis/NIR spectroel…
One-dimensional nanomaterials have attracted great interest in both fundamental research and technological applications because they can function as device elements and be used to effectively generate, guide, and detect light. Here we report a gold nanorod-enhanced light emission in quantum-dot-doped polymer nanofiber…
Polyvinyl alcohol hydrogel (PVA) is a water-soluble synthetic polymer that is commonly used in biomedical applications including vascular grafting. It was argued that the copolymerization of PVA with dextran (Dx) can result in improvement of blood-biomaterial interactions. The focus of this experimental study was to a…
${\mathrm{B}}_{6}\mathrm{O}$ is a member of icosahedral boron-rich solids known for their physical hardness and stability under irradiation bombardment, but it has also recently emerged as a promising high mobility $p\ensuremath{-}$type transparent conducting oxide. Using a combination of hybrid functional and many-bo…
Abstract Implantable devices and scaffolds are recently the focal points of biomedical research to address various human ailments. Infections associated with such appliances face severe consequences. In this report, hyperbranched epoxy/clay − silver nanocomposites are shown to be an infection‐resistant tough implantab…
Unique two-dimensional alumina nanosheets (Alns) using graphene oxide (GO) as templates are fabricated and successfully incorporated with organo-soluble polyimide (PI) to obtain highly transparent PI nanocomposite films with improved moisture barrier property. The effects of filler types and contents on water vapor tr…
Plane wave shielding effectiveness is frequently expressed as the sum of three terms called absorption loss, reflection loss, and a multiple reflections term. This well-known decomposition was introduced by Schelkunoff and provides an intuitive way of relating material properties to the overall shielding effectiveness…
Friedel-Crafts alkylation of 4-tert-butylaniline with 2 equiv of benzhydrol affords bulky 2,6-bis(diphenylmethyl)-4-tert-butylaniline (Ar*NH2) in good yield, which can be readily synthesized on a tens of grams scale. The reaction of 6 equiv of Ar*NH2 with triphosgene generates the symmetric urea (Ar*NH)2CO, which, upo…
In the present work, spontaneous magnetization is observed in the inverse magnetic susceptibility of ${\mathrm{La}}_{0.7}{\mathrm{Ca}}_{0.3}{\mathrm{MnO}}_{3}$ and ${\mathrm{La}}_{0.7}{\mathrm{Ba}}_{0.3}{\mathrm{MnO}}_{3}$ compounds above ${T}_{C}$ up to a temperature ${T}^{*}$. From information gathered from neutron…
With the objective of developing anticorrosive conductive polymeric coatings to combat microbially induced corrosion (MIC), a facile and green synthesis approach based on a thermally induced reaction was described. Thermal curing of polyaniline (PANI) was carried out from the silanized mild steel (MS) surface containi…
A drug-loaded conductive polymer/hydrogel blend, benzoic acid-loaded poly(3,4-ethylenedioxythiophene/alginate (BA-loaded PEDOT/Alg) hydrogel, was used as a carrier/matrix for an electrical stimuli transdermal drug delivery system (TDDS). The effects of cross-linking ratio, PEDOT particle size, and electric field stren…
A model is presented for the crystallization kinetics of flow-induced shish-kebab structures in isotactic polypropylene. The model accounts for two phenomena that affect the crystal growth of kebab structures. First, the temperature of the material increases due to latent heat release. Second, polymer chains are defor…
Araneomorph spiders have evolved different silks with dissimilar material properties, serving different purposes. The two-compound pyriform secretion is used to glue silk threads to substrates or to other threads. It is applied in distinct patterns, called attachment discs. Although ubiquitously found in spider silk a…
Magnetite (Fe3O4) and Zn0.5Fe0.5Fe2O4 nanoparticles (NPs) were synthesized via sonochemical coprecipitation reactions with moderate ultrasound irradiation. The structure and crystalline/particle sizes of the synthesized NPs were determined by X-ray powder diffraction (XRD) and transmission electron microscopy (TEM), a…
Tribological shearing of polycrystalline metals typically leads to grain refinement at the sliding interface. This study, however, shows that nanocrystalline metals exhibit qualitatively different behavior. Using large-scale atomistic simulations, we demonstrate that during sliding, contact interface nanocrystalline g…