Materials Literature
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ABSTRACT Two types of polyhydric alcohol/ethanol phosphates (PAEPs) were synthesized by a two‐step reaction using phosphorus oxychloride, ethanol, and polyhydric alcohol (glycerol and pentaerythritol). First, phosphorus oxychloride was reacted with ethanol to form a mixture of diethyl chlorophosphate and tri‐ethyl pho…
Non-porous bare silica nanoparticles, amine modified silica nanoparticles and mesoporous particles, were evaluated as carriers for sodium ibandronate. The synthesized nanoparticles were characterized by SEM, TEM, DLS and porosity. Then, their capacity to incorporate a bisphosphonate drug (sodium ibandronate) and the i…
We report the fabrication of a stable Si/SiO2 core-shell network using hot-wire chemical vapor deposition on a silicon substrate at a relatively low substrate temperature of 200 °C. Structural investigations using transmission electron microscopy and X-ray diffraction confirm the presence of nanocrystalline silicon an…
Decellularized allograft heart valves have been used as tissue-engineered heart valve (TEHV) scaffolds with promising results; however, little is known about the cellular mechanisms underlying TEHV neotissue formation. To better understand this phenomenon, we developed a murine model of decellularized pulmonary heart…
Hydrophobic ultrasmall nanoparticles synthesized in nonpolar solvents exhibit great potential in biomedical applications. However, a major challenge when applying these nanomaterials in biomedical research is the lack of a versatile strategy to render them water dispersible while preserving the hydrodynamic diameter (…
ABSTRACT In this study, we present a study of polypropylene/bentonite composites where stearic acid was used as both a surface and interface modifier during the compounding of composites. The concentration of bentonite was 1.5, 2.5, 5.0, and 10 parts per hundred. The composites were characterized by impact resistance…
Abstract Clear anti‐smudge coatings with a thickness of up to tens of micrometers have been prepared through a graft‐copolymer‐based approach from commercial precursors. The coatings repel water, diiodomethane, hexadecane, ink, and an artificial fingerprint liquid. In addition, they can be readily applied onto differe…
Electronic structures modification of polycrystalline LuFe2O4 across 3 dimensional to 2 dimensional charge ordering (CO) has been studied by resonance photoemission spectroscopy. Constant-initial-state spectra measured across 3p → 3d resonance energy indicate its charge transfer insulating behavior. Valance band spect…
The corrosion behavior of 9Cr ferritic–martensitic heat-resistant steel was investigated in water and chloride environment at room temperature (RT). The results of linear polarization, electrochemical impedance spectroscopy (EIS), and potentiodynamics (PD) polarization tests on long-term exposure show that 9Cr ferriti…
This work presents a comprehensive study of the influence of channel engineering on the switching, high frequency characteristics, and circuit-level performance of carbon nanotube field-effect transistors (CNTFETs). At the device level, new CNTFETs with single halo doping (SH-CNTFETs) have been proposed. The impact of…
Melamine resins were used as 50-μm-thick fire retardant coatings for polypropylene (PP). Preceding deposition, low-pressure plasma polymer films of allyl alcohol were coated onto PP to improve the adhesion between PP and melamine resin coatings. The efficiency of such fire retardant coatings was confirmed by flame tes…
The transition-metal dichalcogenides provided a good platform for the investigation of superconductivity and charge-density-wave (CDW) order. A series of high quality 6R-TaS2−xSex (0 ≤ x ≤ 1.6) single crystals were fabricated by the chemical-vapor-transport method and systematically investigated. The CDW becomes more…
Due to the requirements for large-area, uniform films, currently transition metal dichalcogenides (TMDC) cannot be used in flexible transistor industrial applications. In this study, we first transferred chemically grown large-area WSe 2 monolayer films from the as-grown sapphire substrates to the flexible plastic sub…
A new composite oxidation method combining rapid thermal oxidation (RTO) and electrochemical oxidation (ECO) is proposed to improve electron emission characteristics of electron emitters based on thick porous silicon (PS) layers. Four groups of electron emitters with 8 μm PS layers were oxidized by RTO, ECO, composite…
In this article, we report the morphology modulation of gold nanoparticle (NP) arrays by polymer-assisted thermal treatment. Simultaneously, localized surface plasmon resonance (LSPR) UV–vis extinction (absorption plus scattering) of gold NP arrays was monitored and analyzed. First, through horizontal lifting, gold NP…
A broadband thin-film antireflective coating (ARC)—a regular array of nanopores in a dielectric substrate—is studied theoretically and experimentally. Tuning the geometrical parameters of the array allows for strong suppression of reflection. For a fused silica substrate, reflectivity is lower than 1% over a range wit…
Abstract The effects of unmodified and surface‐modified polyvinylidenefluoride ( PVDF ) and polyethersulfone ( PES ) ultrafiltration membranes on quality of crude soybean oil and crude oil miscellas were studied. Membranes were modified with hexamethyldisiloxane in radiofrequency plasma polymerization ( PlzP ) at 60 W…
Summary Structures made of shape memory polymer composite (SMPC), due to their ability to be formed into a desired compact loading shape and then transformed back to their original aperture by means of an applied stimulus, are an ideal solution to deployment problems of large and lightweight space structures. In the l…
Sequential phase transitions were investigated in detail for a set of newly designed poly(propylene oxide)- b -poly(ethylene oxide)- b -poly(propylene oxide) (PPO–PEO–PPO) triblock copolymers, where the PPO blocks have isotactic, ( R )- or ( S )-, or atactic configurations. Microphase separation and thermal compositio…
Abstract This paper introduces a knitting technique for making innovative curved three-dimensional (3D) spacer fabrics by the computer flat-knitting machine. During manufacturing, a number of reinforcement yarns made of aramid fibres are inserted into 3D spacer fabrics along the weft direction to enhance the fabric te…