Materials Literature
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A novel type of cellular-uptake-shielding multifunctional envelope-type mesoporous silica nanoparticle (MEMSN) was designed for tumor-triggered targeting drug delivery to cancerous cells. β-Cyclodextrin (β-CD) was anchored on the surface of mesoporous silica nanoparticles via disulfide linking for glutathione-induced…
We report a facile approach to produce lightweight microcellular polyetherimide (PEI)/graphene nanocomposite foams with a density of about 0.3 g/cm3 by a phase separation process. It was observed that the strong extensional flow generated during cell growth induced the enrichment and orientation of graphene on cell wa…
The first GaS nanosheet-based photodetectors are demonstrated on both mechanically rigid and flexible substrates. Highly crystalline, exfoliated GaS nanosheets are promising for optoelectronics due to strong absorption in the UV-visible wavelength region. Photocurrent measurements of GaS nanosheet photodetectors made…
Unique all-graphene core–sheath fibers composed of a graphene fiber core with a sheath of 3D graphene network have been developed. Used as flexible electrodes, all-solid-state fiber supercapacitors have been fabricated, which can be managed to highly compressible and stretchable spring supercapacitors and can also be…
The solubility data of 4,4′-dichlorodiphenyl disulfide in solvents (ethanol, methanol, ethyl acetate, methylbenzene, chloroform, acetone) were measured between (303.15 and 333.15) K under atmospheric pressure using synthetic method and laser monitoring technique. The experimental data was correlated with the Apelblat…
The absorption spectra and local electric fields of nanosized superparamagnetic magnetites of four different shapes including a sphere, cube, cylinder and disk have been calculated using the discrete dipole approximation. The absorption efficiency and its peak position for the magnetite are dependent upon the morpholo…
The specific heat of polycrystalline (Ca0.85La0.15)10(FeAs)10(Pt3As8), an electron-doped iron-based superconductor (T(c)(onset) = 34.6 K) with Ca/La ions and Pt3As8 separating the FeAs layers, was measured between 0.4 and 48 K.This compound has been recently reported to represent an electron-doped variant of the non-s…
Two-way multicomponent diffusion processes in polymeric nanocomposite foams, where the condensed phase is nanoscopically reinforced with impermeable fillers, are investigated. The diffusion process involves simultaneous outward permeation of the components of the dispersed gas phase and inward diffusion of atmospheric…
Abstract Vehicles running on compressed natural gas (CNG) are a promising option to significantly decrease automotive CO 2 emissions. However, considerable amounts of methane are emitted by the exhaust of CNG powered engines which are difficult to convert by standard catalytic converters. Yet, by combining the catalys…
We present a modal method for the fast analysis of 2D-layered gratings. It combines exact discrete formulations of Maxwell equations in 2D space with polynomial approximations of the constitutive equations, and provides a sparse formulation of the eigenvalue equations. In specific cases, the use of sparse matrices all…
Electrical and photoresponse properties of a Al/porous silicon/crystalline silicon/Al structure (Al/PSi/Si/Al) are investigated under irradiation of Nd:YAG laser pulses. The effect of Nd-YAG laser irradiation on the morphological and structural properties of a porous silicon layer is also demonstrated. The porous Si l…
A grating coupled porous silicon (pSi) Bloch Surface Wave (BSW) biosensor capable of supporting a surface mode is demonstrated for the real-time detection of both small and large molecules. In contrast to most pSi based sensor platforms that are unable to perform high sensitivity detection of large molecules that do n…
Bacteria have the most attendance in biosynthesis of silver nanoparticles either intra- or extracellular. In this study, we investigated biologic production of silver nanoparticles by a silver resistant Bacillus sp. isolated from a copper mine. The UV–vis and XRD spectra of the aqueous medium containing the Bacillus s…
The author synthesized graft copolymers with polyvinylpropionate and polyaniline (PVPr-g-PANi), via chemical and electrochemical methods that have well suitable processible solubility. PVPr-g-PANi exhibit sensing properties for some of organophosphorous toxic vapors. It is known that pesticide poisons are very importa…
Abstract The permeance properties of a nanoporous silica membrane were first evaluated in a laboratory‐scale porous silica membrane reactor (MR). The results indicated that CO, CO 2 , and N 2 inhibited H 2 permeation. Increased H 2 permeability and selectivity were obtained when gas was transferred from the lumen side…
A new approach to polymer cross-linking is investigated using a cascading cycloreversion of a maleimide-furan adduct and a double 1,3-dipolar cycloaddition between a sydnone and maleimide. The cross-linking proceeds quantitatively above 63 °C, despite the polymer possessing no observable glass transition temperature.…
In order to obtain a suitable formulation of designing direct synthesis of acrylic latexes to be used as emulsion pressure sensitive adhesives (EPSA), having high shear resistance together with high peel strength and tack, free radical emulsion polymerization of hard monomers, such as styrene (St), vinyl acetate monom…
Abstract A novel intercluster compound, [(n‐C4H9)4P]3[H3V10O28] (IL01‐V10), constructed from the tetrabutylphosphonium cation and decavanadate, has been synthesized and unequivocally characterized by elemental analysis, FTIR spectroscopy, mass spectrometry, X‐ray crystallography, and solution 1H, 13C, 31P{1H}, and 51V…
Thermodynamic parameter Γ and thermodynamic scaling parameter γ for low-frequency relaxation time, which characterize flip-flop motion in a nematic phase, were verified by molecular dynamics simulation with a simple potential based on the Maier-Saupe theory. The parameter Γ, which is the slope of the logarithm for tem…
Correlated electronic and structural distortions in individual carbon nanotubes induced by photon excitation are observed for the first time by using a unique in situ transmission electron microscope configuration. By combining sub-100-meV resolution electron energy-loss spectroscopy with in situ photon excitation of…