Materials Literature
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Lead sulfide nanowires with controllable optoelectronic properties would be promising building blocks for various applications. Here, we report the hot colloidal synthesis of radically branched and zigzag nanowires through self-attachment of star-shaped and octahedral nanocrystals in the presence of multiple surfactan…
A facile and universal synthetic approach for preparing superlattice nanowire (SLNW) arrays is developed. In this method, two kinds of elements are alternately electrodeposited into the holes of the anodic alumina oxide (AAO) template, automatically in separate electrolytes by a programmed device. This method is not r…
AFM is used to characterize sodium poly(styrene sulfonate) (PSS) layers physisorbed from NaCl solutions with an ionic strength ranging between 0 and 1 M NaCl. Colloidal probe tapping mode imaging shows that domains of PSS salted brushes coexist with flatly adsorbed PSS. The brush area fraction increases with rising de…
The 1/f noise and temperature coefficient of resistance (TCR) are investigated in multiwall carbon nanotube (MWCNT) film bolometers since both affect the bolometer detectivity directly. A comparison is made between the MWCNT film bolometers and their single-wall carbon nanotube (SWCNT) counterparts. The intrinsic nois…
The two-orbital Hubbard model for the pnictides is studied numerically using the real-space Hartree--Fock approximation on finite clusters. Upon electron doping, states with a nonuniform distribution of charge are stabilized. The observed patterns correspond to charge stripes oriented perpendicular to the direction of…
Magnetic correlations appearing in polycrystalline Gd${}_{5}$Ge${}_{4}$ are studied. On the one hand, ac susceptibility measurements as functions of temperature at several dc fields and frequencies show the existence of ferromagnetic (FM) and antiferromagnetic (AFM) correlations in the paramagnetic (PM) region, where…
Low seeding efficiency and poor cell retention under flow-induced shear stress limit the effectiveness of in vitro endothelialization strategies for small-diameter vascular grafts. Primary-amine-rich plasma-polymerized coatings (PPE:N) deposited using low- and atmospheric-pressure plasma discharges on PET and PTFE are…
Abstract The aim of this study is to investigate the performance of nanoclay reinforced unsaturated polyester (UP) resin under impact loads. Nanocomposite specimens containing nanoclay in 0, 1.5, and 3 (wt%) were prepared by melt mixing method. X‐ray diffraction, transmission electron microscopy analysis, scanning ele…
Abstract Localized oxide spots were grown at the grain boundaries of a technically relevant 30 at.% Nb–Ti β‐type titanium alloy to study the local electrochemical response. The grain boundaries selected were combinations of grains having different orientations and grain boundary angle. Crystallographic information of…
First-principles methods based on density functional theory are used to investigate the electronic and magnetic properties of molecular interaction of the TiO${}_{2}$ terminated SrTiO${}_{3}$ (100) surface with ethanol or acetone. Both the perfect surface and the surface with an oxygen or a titanium vacancy in the top…
We report here that by good design, polyaniline (PANI) can be cytocompatible and formed into usable scaffolds for bio-medical applications. By adjusting the ratio of two monomers, aniline (AN) and metanilic acid (MA), a series of copolymers with different sulfonation degrees have been synthesized. Four-probe conductiv…
Losing an I: The metastable metallic compound Bi28Ni25 is the product of the mild reduction of the solid precursor Bi28Ni25I5. In a pseudomorphosis the iodine is completely extracted while the macroscopic crystals are preserved. The unique structure is composed of decagonal nanorods, which consist of an outer Bi tube,…
The kinetics of the TEMPO-mediated oxidation of cotton fibers were studied. It was revealed that the oxidation reaction of the cotton fibers by TEMPO/NaBr/NaClO system can be approximately described as two pseudo-first-order reaction kinetics that are based on the cellulose microstructure, namely the kinetic processes…
Abstract This study discloses (i) the chemical and morphological modifications in acrylate hard‐coat and bare polyethylene terephthalate polymers occurring in the course of Ar plasma treatments and (ii) the effects of these modifications on the adhesion, barrier performance, and cohesion of silicon oxide coatings depo…
Carbon nanotubes (CNTs) are versatile nanomaterials with applications spanning from medicinal chemistry and biology, to electronics as field effect transistors or energy as fuel cells. The major drawback stems from the CNT insolubility in most of the organic and aqueous media, which severely hampers the material proce…
We present a density functional theory analysis for polycrystalline ZnO doped with the potential multiple donors silicon and niobium. A self-interaction correction allows a more accurate description of the defect formation energies as well as the additional electronic doping levels, which enable us to evaluate the inf…
Abstract Combining polymeric silver alkynyl clusters with the Wells–Dawson polyoxometalate [P 2 W 18 O 62 ] 6– has led to the formation of the first chain‐like intercluster compounds {[Ag 14 (C≡C t Bu) 8 (C 3 H 7 NO) 10 ][Ag 12 (C≡C t Bu) 6 Cl(C 3 H 7 NO) 10 ]H[P 2 W 18 O 62 ] 2 } n ( 1 ) and {[Ag 16 (C≡C t Bu) 11 (CH…
ZnO:Al thin films with Al incorporation of 0-20 at.% were deposited through the sol-gel technique. Such a film undergoes a significant microstructure development, from columnar to granular structures and then nanorod arrays with increasing Al content. The important role of Al incorporation level in the microstructure…
Zuverlässige Berichterstattung: Das Screening einer 80-teiligen Tricarbocyanin-Bibliothek lieferte CyNAMLA-381 als Nahinfrarot-SERS-Reporter mit guter Signalstabilität und höherer Empfindlichkeit als der Standard (SERS=oberflächenverstärkte Raman-Spektroskopie). Durch Verkapselung von CyNAMLA-381 an der Oberfläche von…
The binding energy, density, and solubility of functionalized gold nanoparticles in a vacuum are computed using molecular dynamics simulations. Numerous parameters including surface coverage fraction, functional group (-CH(3), -OH, -NH(2)), and nanoparticle orientation are considered. The analysis includes computation…