Materials Literature
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Electrospinning of polycaprolactone (PCL) in a mixed solvent of dichloromethane (DCM)/dimethylformamide (DMF) with 1:1 volumetic mixing ratio was studied. The effects of solution concentration (5-30 %w/v), applied voltage (10-25 kV), solution flow rate (0.1-2.0 mL/h) and collecting distance (10, 20 cm) on fiber format…
In this paper, we present a study of chemical changes in poly(dimethylsiloxane) (PDMS) induced by proton irradiation of various energy and fluence. It has been found that the forming products vary as the energy of the proton changes, which means that the energy of the incident ions can influence the chemical mechanism…
It has been shown in literature that cross-shaped holes arrays can be made insensitive to polarization at normal incidence, and can even feature good stability for off-normal incidence. In this work we look for the optimal design rules to obtain high spectral stability conditions in the visible for those structures, t…
A series of cobalt complexes of ligands based on the 2-(arylazo)pyridine architecture have been synthesized, and the precise structure and stoichiometry of the complexes depend critically on the identity of substituents in the 2, 4, and 6 positions of the phenyl ring. The 2-(arylazo)pyridine motif can support either C…
ABSTRACT A mesogen‐jacketed liquid crystalline polymer (MJLCP) containing triphenylene (Tp) moieties in the side chains with 12 methylene units as spacers (denoted as PP12V) was synthesized. Its liquid crystalline (LC) phase behavior was studied with a combination of solution 1 H NMR, solid‐state NMR, gel permeation c…
Recent experiments have demonstrated that tiny amounts of Mo impurities give rise to drastic changes in the adsorption characteristic of a wide-gap CaO(001) film. In this scanning tunneling microscopy (STM) and density functional theory paper, we elucidate the underlying mechanism by analyzing the energy levels of the…
Ferroelectric nanodomains can be created by the application of a bias voltage to the sharp conducting tip of a scanning force microscope (SFM) contacting the sample surface. Since an inhomogeneous electric field created by an SFM tip has maximum intensity along the surface normal, in multiaxial ferroelectrics the pola…
This study elucidates how annealing temperature affects the mechanical properties and sensitization of 5083-H116 aluminum alloys. Nitric Acid Mass Loss Test was conducted to investigate the sensitization behavior of the annealed specimens. The results indicated that the mechanical properties were more sensitive to the…
The influence of the BaF2 nanoparticle size on the intensity of the self-trapped exciton luminescence and the radiative core-valence transitions is studied by the luminescence spectroscopy methods using synchrotron radiation. The decrease of the self-trapped exciton emission intensity at energies of exciting photons i…
In this study, thermosensitive hydrogels incorporated with multiple cell-interactive factors were developed as a substrate to form monolayer of human umbilical vein endothelial cells (HUVECs) that can be detached and transferrable to target sites as a cell-sheet in response to temperature change. The cell adhesive pep…
Surface‐enhanced Raman scattering of p ‐aminothiophenol and p ‐nitrothiophenol were obtained on the surface of Cu 2 O nanoparticles, showing novel spectral changes with morphology‐dependent and time‐dependent characteristics. The measured Raman signals were believed to partly originate from the newly produced surface…
Li[TCNE] (TCNE = tetracyanoethylene) magnetically orders as a weak ferromagnet (canted antiferromagnet) below 21.0 ± 0.1 K, as observed from the bifurcation of the field-cooled and zero-field-cooled magnetizations, as well as remnant magnetization. The structure, determined ab initio from synchrotron X-ray powder diff…
Al 3+ -Mg 2+ mixed oxides were prepared by coprecipitation and characterized with scanning electron microscopy (SEM), energy dispersive X-ray fluorescence (EDXRF), temperature programmed desorption of CO 2 (CO 2 -TPD), and N 2 adsorption/desorption isotherms (BET and BJH methods). By increasing the MgO concentration u…
In this work, we present a study on the negative differential resistance (NDR) behavior and the impact of various deformations (like ripple, twist, wrap) and defects like vacancies and edge roughness on the electronic properties of short-channel MoS2 armchair nanoribbon MOSFETs. The effect of deformation (3°–7° twist…
Surface‐enhanced Raman spectroscopy (SERS) measurements on 1,3,5‐trinitroperhydro‐1,3,5‐triazine were performed with a table‐top micro‐Raman system exciting the analyte with a diode laser emitting at 785 nm. The main Raman features of 1,3,5‐trinitroperhydro‐1,3,5‐triazine were clearly identified, and a careful optimiz…
Spray drying is widely used for producing granulated feed materials for compaction process, which is the current industrial method for manufacturing alumina-zirconia femoral heads. The optimization of the granules compaction behavior requires the control of the slurry rheology. Moreover, for a dual-phase ceramic suspe…
Nanoscale ionic materials (NIMs) based on hydroxyl-functionalized graphene have been synthesized, which exhibit easily tunable flowing properties.
The fabrication of electrospun magnetoactive fibrous nanocomposite membranes based on the water-soluble and biocompatible poly(ethylene oxide) (PEO), the biocompatible and biodegradable poly(L-lactide) (PLLA) and preformed oleic acid-coated magnetite nanoparticles (OA.Fe3O4) is reported. Visualization of the membranes…
The sterilization of scaffolds is an essential step for tissue engineering in vitro and, mainly, clinical biomaterial use. However, this process can cause changes in the structure and surface of the scaffolds. Therefore, the objective of this study was to investigate the effect of sterilization by ethanol, ultraviolet…
Fluorophores are ubiquitous in nature. Naturally occurring fluorophores are exceptionally stable and have high quantum yield. Several natural systems have acquired fluorescent signature due to the presence of these fluorophores. Systematic attempt to harvest these fluorophores from natural systems could reap rich comm…