Materials Literature
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Highly porous polyetherimide (PEI) microparticles achieved by a spraying/coagulation process are candidate absorber materials for apheresis applications. Hydrophobic PEI surfaces tend to be rapidly coated with proteins when in contact with blood. Therefore, a hydrophilic modification of such particles is required. In…
Lead-free piezoelectric materials attract more and more attention owing to the environmental toxicity of lead-containing materials. In this work, we review our first attempts of single crystal grown by the top-seeded solution growth method of BaTiO3 substituted with zirconium and calcium (BCTZ) and (K0.5Na0.5)NbO3 sub…
/carbon and carbonaceous products with different morphologies, including nanofibrils, nanobelts, and nanotubes. Moreover, this process could also fulfill a steady chirality transmission. When PEI complexed with chiral tartaric acid, the resulting chiral complex could function both as a template and chirality source, a…
The photon energy dependence of angle-resolved photoemission spectroscopy (ARPES) in graphene is investigated experimentally and theoretically. By applying light with energy of around $46\phantom{\rule{0.28em}{0ex}}\phantom{\rule{0.28em}{0ex}}\mathrm{eV}$, we found an unexpected increase in the ARPES relative intensit…
Combining topology and plasmonics paradigms in nanocolloidal systems may enable new means of pre-engineering desired composite material properties. Here we design and realize orientationally ordered assemblies of noble metal nanoparticles with genus-one topology and unusual long-range ordering mediated by their intera…
Anomalous spectral shift of transmission peaks is observed in a Fabry-Pérot cavity filled with a chiral anisotropic medium. The effective refractive index value resides out of the interval between the ordinary and the extraordinary refractive indices. The spectral shift is explained by contribution of a geometric phas…
A series of 4 and 9 wt% Ag/MFI catalysts were prepared using MFI zeolites containing different co-cations (H + and Na + ).
ABSTRACT In this work, flexible nanofibrous membranes (mats) of poly(ethylene oxide) (PEO) with and without multiwall carbon nanotubes (MWNTs) were fabricated by electrospinning. The effects of annealing and MWNT concentration on mat morphology, MWNT dispersion within the nanofibers, and the mechanical properties of e…
ABSTRACT Polyethylene hollow spheres with diameters of 0.4–2 mm were synthesized by a two‐step slurry polymerization in a single reactor with a spherical MgCl2‐supported Ziegler‐Natta catalyst activated by triethylaluminum, in which the first step was prepolymerization with 0.1 MPa propylene and the second step was et…
Novel Rh-substituted hexaaluminate catalysts were prepared for the first time for N 2 O decomposition as a green propellant.
The effect of a Cr adhesion layer on the transfer characteristics of Cr/Au-contacted carbon nanotube field-effect transistors (CNFETs) based on individual single-walled carbon nanotubes (SWNTs) is presented in this paper. We show that a very thin Cr layer (≈0.4 nm) already has an impact on the carrier transport in Sch…
In the present work, first the hydrophilic surface of titanium dioxide nanoparticles (TiO 2 NPs) was modified with citric acid and then with vitamin C as bilayer surface modification for better compatibility with poly(vinyl chloride) (PVC) matrix. The process was accomplished under ultrasonic method as a fast, low‐cos…
The analytical method to study the multi-spectral inhomogeneous metasurfaces with various components is presented. Because of symmetrical distribution of different components, we can find the effective polarizability of the inhomogeneous metasurfaces. This polarizability provides equivalent conductivity of each metasu…
The trinuclear copper complex, [Cu3(μ3-OH)(CTMB)3(NO3)2(CH3CN)2]·5CH3CN·H2O (1) {CTMB = cyclohexotriazole-3-(4-methoxybenzamide)}, has been prepared by mixing Cu(NO3)2·2.5H2O and CHMBH {CHMBH = N,N′-cyclohexane-1,2-diylidene-bis(4-methoxybenzoylhydrazide)} in acetonitrile under ambient conditions. Compound 1 was chara…
Using angle-resolved photoemission spectroscopy, we studied the electronic structures of ${\mathrm{CsFe}}_{2}{\mathrm{As}}_{2}$ and ${\mathrm{RbFe}}_{2}{\mathrm{As}}_{2}$. Contrary to other iron-based superconductors where the band structures are usually depicted in the two-Fe Brillouin zone (BZ), we found that the di…
A facile route for the synthesis of high-yield mesoporous silica nanospheres (MSNs) is reported. This route involves the use of gelatin as a particle suppressant and dispersant. Gelatin has been observed to hinder the growth of the mesoporous silica particles and helps to control the size of spherical particles from m…
Synthesis of silver nanoparticles (Ag NPs) using water extract of pennyroyal is carried out successfully at ambient temperature. The obtained Ag NPs were characterized, using different methods including ultraviolet–visible spectroscopy, powder X-ray diffraction, scanning electron microscopy and transmission electron m…
The lasing behavior of solution‐based colloidal quantum dots within an open microcavity is reported. The small size and wide tunability of the cavity provide single mode lasing over a wavelength range in excess of 25 nm. By extracting the lasing threshold and differential gain for the fundamental cavity mode over this…
Active polymer food packaging is packaging which has been designed to deliberately interact with food or with a direct food environment to reduce oxygen and moisture levels, preserve flavourings and the quality of the food. New concepts of active and intelligent packaging play an increasingly important role by offerin…
In the age of hand-held portable electronics, the need for robust, stable and long-life cathode materials has become increasingly important. Herein, a novel heterogranular-structured diamond-gold nanohybrids (HDG) as a long-term stable cathode material for field-emission (FE) display and plasma display devices is expe…