Materials Literature
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A simple and one-step method of producing graphenes was investigated in this work. We have modified the Hummer electrolysis method and combined it with ionic liquid for productions. The results showed that the graphenes could absorb Cu2+ at 202.2 mg/g. Additionally, the mechanism of how graphenes absorb metal and the…
PURPOSE: To develop a reproducible small-animal dynamic contrast-enhanced (DCE) MRI set-up for mice through which volumes <100 μL can be accurately and safely injected and to test this set-up by means of DCE measurements in resting muscle and tumor tissue. MATERIALS AND METHODS: The contrast agent (CA) injection syste…
Abstract Thiolate-mPEG ligand-protected gold nanoparticles (AuNPs) are shown to encapsulate the water-soluble vitamins C (ascorbic acid), B3 (nicotinic acid), B6 (pyridoxine), and B9 (folic acid) in a hydrophobic medium, i.e., between 1000 and 3000 vitamin molecules per 6-nm-core AuNP (overall size: 19.2 ± 2 nm) in di…
It is well known that space charge accumulation in insulating materials constitutes the principal cause of dielectric breakdown. Though space charge measurements in polymeric materials have been extensively developed over the last two decades, modeling and simulation works have progressed slowly in this respect. In th…
?-Cellulose and microcrystalline cellulose powders with desired physicochemical properties for use in the pharmaceutical industry can be derived from agricultural residues. ?–Cellulose (GCN) was extracted from an agricultural residue (groundnut shell) using a non-dissolving method based on inorganic substances. Modifi…
Interfacial structure of composites of poly(m-xylylen adipamide) (MXD6) and silica nano-particles (SNPs) was investigated by differential scanning calorimetry (DSC), X-ray diffractometry (XRD), and infrared (IR) spectroscopy. In the DSC curves of the composites, changes in specific heat similar to a glass transition b…
The authors have developed a silver-nanoparticle-based ink formulation for aerosol-jet-based printing technique called "Maskless Mesoscale Material Deposition" or M3D™. A wet chemistry precursor-based approach was used to prepare ligand-capped silver nanoparticles where the reduction of silver salt was carried out in…
Particles of externally added charge control agent (EA-CCA) were prepared by means of a coacervation process and their effects on toner charge were investigated. The EA-CCA particles comprised silica core particles of 110 nm diameter and CCA molecules adhered to the core surface. Four kinds of negative charge control…
Poly(lactic acid), a semi-crystalline polymer, is used in a wide range of applications because it is biodegradable, biocompatible, versatile, and easy to process. Some of these applications include oriented fibers and films. In this research, poly(lactic acid), [PLA], was uniaxially deformed at 70°C, which is above it…
We have used density functional theory to study the electronic structure of the interfaces between graphite thin films and metal substrates. We found that unusual electron transfer from Ag to the graphite thin film occurs as a result of the spatial modulation of the Dirac point of the interfacial region of graphene la…
We performed the detailed investigation of the magnetization ( M ) of CeB 6 at low magnetic fields in the O x y -type antiferro-quadrupole (AFQ) ordered phase II to clarify the mechanism of the domain redistribution by magnetic field. Although M in phase II is isotropic above ∼1 kOe, it is anisotropic at lower magneti…
The title compound, [Te(8)][NbOCl(4)](2), was obtained as translucent black crystals by reaction of elemental tellurium, niobium(V) chloride and niobium(V) oxychloride in the ionic liquid BMImCl (BMImCl is 1-butyl-3-methylimidazolium chloride). The synthesis was performed in argon-filled glass ampoules. According to X…
The capillary-driven filling speed of water in hydrophilic microscope coverslip planar nanofluidic channels is investigated. Nanochannels with depths ranging from 40 to 575 nm and widths ranging from 30 to 200 µm are fabricated on a coverslip substrate of borosilicate glass with a thickness of 160 µm using buffered ox…
Abstract Reverse micellar mobile phases based on poly(oxyethylene) (4) lauryl ether (Brij 30) and sodium bis(2-ethylhexyl) sulfosuccinate (AOT) were used as mobile phases in HPLC. The chromatographic behavior of the model compounds was studied on the basis of reverse micellar mobile phases modified by salt additives.…
Six members of a new family of cerium-halide-based materials with promising scintillation behavior have been synthesized in single crystal form, and their crystal structures were determined. Specifically, these new compounds are [(CeCl(3))(7)(BuOH)(16)(H(2)O)(2)]·(BuOH)(2) (1), (CeBr(3))(14)(BuOH)(36) (2), [(CeCl(3))(…
The hydrogen desorption/absorption behaviors of LiAlH4/LiBH4 with a focus on the effects of catalysts, namely TiCl3, TiO2, VCl3, and ZrCl4, were investigated using a thermal-volumetric apparatus. The hydrogen desorption was performed from room temperature to 300 °C with a heating rate of 2 °C min−1. The LiAlH4–LiBH4 m…
Highly proton-conducting hybrid materials ( P2W17V /PEG and P2W17V/PEG/SiO2 ) were prepared by heptadecatungstovanadodiphosphoric heteropoly acid with Dawson structure ( P2W17V , 90 wt.%), polyethylene glycol (PEG, 10 wt.% and 5 wt.%) and silica gel ( SiO2 , 0 wt.% and 5 wt.%). The products were characterized by the i…
Abstract Electromagnetic wave absorption of microcapsules by coating FeSiAlCr with SiO2 is investigated. The absorption amplitude of the microcapsules is found to increase significantly in the lower frequency of microwave compared with the corpuscles of FeSiAlCr alloy. Reflection loss (RL) exceeding −10 dB can be obta…
A better understanding of the interactions between metal electrodes and organic molecules still represents one of the key problems in molecular electronics that needs be solved in order to optimize electron transport through a molecular device. In this contribution, the impact of widely used “alligator clips” (Au–thio…
Structural estimators for the entropy are combined with an analysis of the different contributions to the energy of solvation to understand the molecular basis of the thermodynamics of solvation of passivated nanoparticles. Molecular dynamics simulations of thiolated gold clusters in ethane are performed over a wide r…