Materials Literature
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The epitaxial growth of graphene on transition metal surfaces by ex situ deposition of liquid precursors (LPD, liquid phase deposition) is compared to the standard method of chemical vapor deposition (CVD). The performance of LPD strongly depends on the particular transition metal surface. For Pt(111), Ir(111) and Rh(…
The in situ chlorination of graphene on Ir(111) has been achieved by depositing FeCl(3) followed by its thermal decomposition on the surface into FeCl(2) and Cl. This process is accompanied by an intercalation of Cl under graphene and formation of an epitaxial FeCl(2) film on top, which can be removed upon further ann…
Abstract This manuscript describes a straightforward method to prepare stimuli‐responsive fibers by the combined technology of electrospinning and two facile thiol‐ene click chemistry processes: photo‐initialized thiol‐ene radical addition and thiol‐Michael nucleophilic addition. By controlling the molar ratio of poly…
Nanodiamond (ND) has great potential for bio labeling and drug delivery. In this work, the biocompatibility and bio labeling of ND are demonstrated via the interaction with cells and microorganisms, protists microorganisms Paramecium caudatum and Tetrahymena thermophile, in vitro and in vivo. We found the microorganis…
Abstract Dumbbell‐shaped isobutyl‐substituted 1,2‐bis(4‐vinylphenyl)acetylene‐linked POSS (DA1), 9,10‐bis(4‐vinylphenyl)ethynyl)anthracene‐linked POSS (DA2), and 5,5″‐bis((4‐vinyl)phenyl)ethynyl)‐2,2′:5′2″‐terthiophene‐linked POSS (DA3), and corresponding model compounds were synthesized by cross metathesis and Sonoga…
We report a comprehensive angle-resolved photoemission spectroscopy study of the tridimensional electronic bands in the recently discovered Fe selenide superconductor ((Tl,Rb)(y)Fe(2-x)Se2 (T(c)=32 K). We determined the orbital characters and the k(z) dependence of the low energy electronic structure by tuning the pol…
Abstract Spatial mapping of strain fields within compressed carbon nanotube (CNT) array columns is achieved using digital image correlation (DIC) analysis of in situ scanning electron microscopy (SEM) image sequences. Full‐field displacement and strain maps are generated based upon the motion of the constituent CNTs,…
We report on the binding of metal ions (Me(2+); Co(2+) and Cu(2+)) with weak polyelectrolyte multilayers (PEMs), as well as on catalytic activity of PEM-Me(2+) films for oxidation of toluene. Using several types of PEM films constructed using branched polyethyleneimine (BPEI) or quaterinized poly-4-vinylpyridines (QPV…
A meso/macro-scale finite element model is developed to analyze the three-dimensional forming process of woven fabric reinforcements. The yarns of reinforcements are considered as a transversely isotropic linear elastic material. The cross section and extrusion path of yarns are obtained by taking photographs from exp…
We study dynamically highly asymmetric binary mixtures comprised of small methyl tetrahydrofuran (MTHF) molecules and polystyrene. Combined use of dielectric spectroscopy, 2H nuclear magnetic resonance, incoherent quasielastic neutron scattering, and depolarized dynamic light scattering allows us to selectively probe…
G-phase precipitation and ferrite-phase decomposition in a cast duplex stainless steel (DSS) aged at 623–723 K for up to 8000 h were investigated using atom probe tomography (APT). Large sample volume was observed in every APT experiment, which yielded significantly statistical results. The number density of G-phase p…
Semiconductor nanocrystal solids are attractive materials for active layers in next-generation optoelectronic devices; however, their efficient implementation has been impeded by the lack of precise control over dopant concentrations. Herein we demonstrate a chemical strategy for the controlled doping of nanocrystal s…
Active knits are a unique architectural approach to meeting emerging smart structure needs for distributed high strain actuation with simultaneous force generation. This paper presents an analytical state-based model for predicting the actuation response of a shape memory alloy (SMA) garter knit textile. Garter knits…
To fully utilize their optical absorption and polarizing abilities, the dispersion of Au nanorods (NRs) in a matrix, such as a polymer film, must be controlled. By functionalizing NRs with a polymer brush chemically similar to the matrix, NR dispersion and aggregation can be controlled by varying the ratio of brush (…
Natural fine fibers were extracted from Borassus fruits belonging to the Arecaceae family. To improve the surface, these fibers were treated with aq NaOH solution. Composites were prepared by the hand lay up process using both the untreated and alkali-treated Borassus fine fibers as reinforcement and unsaturated polye…
Porous layers were produced on a p-type (100) Si wafer by electrochemical anodic etching. The morphological, nanostructural and optical features of the porous Si were investigated as functions of the etching conditions. As the wafer resistivity was increased from 0.005 to 15 Ω·cm, the etched region exhibited 'sponge',…
Layered double hydroxides (LDHs), [M II (1– x ) M III x (OH) 2 ] x + [A n – ] x / n · z H 2 O], with various cations and diverse stoichiometries were synthesized by three different coprecipitation routes to highlight the effect of the synthesis method on the composition range of the corresponding materials. While morp…
Electronic structures of the deep ultraviolet nonlinear optical crystals of the KBe(2)BO(3)F(2) (KBBF) family, including KBBF, RbBe(2)BO(3)F(2) and CsBe(2)BO(3)F(2), have been investigated based on a plane-wave pseudopotential method. Their linear and nonlinear optical coefficients are also calculated, and are in good…
Well-defined and nontoxic cross-linked polymeric micelles, containing either permanent or acid degradable cross-linkers, were employed for efficient intracellular delivery of cisplatin. The self-assembled structures were generated from triblock copolymers of poly(oligo(ethylene glycol) methylether methacrylate)- block…
An improved 'chemical blowing' route presuming atmospheric-pressure pre-treatment and moderate heating rate of designated precursors was developed to synthesize ultra-thin boron nitride (BN) nanosheets with high yield and large lateral dimensions. The yield reached as high as 40 wt% with respect to raw materials (ammo…