Materials Literature
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ABSTRACT With aim of constructing a class of functional environmentally friendly materials, we electrospun chitosan (CS) blends with various contents of poly(ethylene oxide) (PEO) into a series of composite nanofibrous membranes exhibiting shape‐memory behaviors. In the present composite system, CS and PEO served as h…
The aim of this paper is to investigate the free vibration of hybrid composite moving beams embedded with shape memory alloy (SMA) fibers. The nonlinear equations of motion are derived based on the Euler–Bernoulli beam theory in conjunction with the von Karman type of nonlinearity in strain–displacement relations via…
ABSTRACT A novel in situ intercalative polymerization technique was used to disperse clay mineral in a precursor resin for use in UV curing by performing an in situ ion exchange reaction during polyesterification. Unmodified montmorillonite (MMT) was added to a reaction mixture composed of monomers and methyl, tallow,…
Threading dislocations in off‐axis grown heteroepitaxial diamond films have been visualized by preferential etching of the surface. The lateral distributions of the etch pits display characteristic inhomogeneities. Patterns with fourfold symmetry consisting of a cell structure with dislocation poor cores and dislocati…
A compilation of magnetocaloric properties of metallic nanostructures with Curie temperature (TC) between 260 and 340 K has been tabulated. The tabulated data show that nanostructure plays an important role in enhancing the magnetocaloric properties of a material, namely by reducing the peak of magnetic entropy, but b…
Thermomechanical and rheological behavior of poly(methyl methacrylate) (PMMA)/reduced graphene oxide (RGO) nanocomposites prepared via in situ polymerization using sheet casting method was investigated. Scanning electron microscope and transmission electron microscope were used to study the microstructure of nanocompo…
Triethoxysilyl‐terminated poly( d ‐lactide)s (eSi‐PDLA) were successfully prepared by hydrosilylation of allyl‐terminated PDLAs (A‐PDLA‐ac) which were readily prepared by ring‐opening polymerization of d ‐lactide and the following terminal protection by acetylation. Their acid‐catalyzed hydrolysis produced hyper‐conju…
In our previous studies, injectable chitosan-based hydrogel (CH) was prepared and its application in surgery removal of tumor was studied. In this study, the antitumor and antimetastasis effects of the macerating solutions from CH were investigated. Our in vitro results showed that macerating solutions from CH signifi…
The detection of defect-induced magnetic order in single low-dimensional oxide structures is in general difficult because of the relatively small yield of magnetically ordered regions. In this work, the effect of an external magnetic field on the transient photocurrent measured after light irradiation on different ZnO…
This work provides a detailed information on the preparation process and characterization of functionalized multiwalled carbon nanotubes/Epidian 6 nanocomposites using ARES rheometer, TGA, and DSC measurements, with the imidazole derivative as a curing agent. Scanning electron microscopy of the fracture surfaces of th…
We present the results of detailed dielectric investigations of the relaxation dynamics in ${\mathrm{DyMnO}}_{3}$ multiferroic manganite. A strong low-frequency relaxation process near the paraelectric-ferroelectric phase transition is observed. We provide experimental evidence to show that this relaxation mode corres…
In this work, we investigated the stoichiometry of oxygen precipitates in Czochralski silicon wafers. The thickness dependence of the Cliff–Lorimer sensitivity factor for the silicon/oxygen system was determined and applied for the investigation of the stoichiometry of oxygen precipitates by EDX. The results show that…
In this experiment, the solubility data of 4,4′-diaminodiphenylmethane in different pure solvents, including methanol, ethanol, 2-propanol, 1-butanol, toluene, chloroform, and benzene, were measured by a synthetic method from (293.15 to 333.15) K at atmospheric pressure. It is indicated that the solubility of 4,4′-dia…
A series of azobenzene-cholesterol organogel compounds (M 0 -M 12 ) with different spacers were designed and synthesized. The molecular structures were confirmed by (1)H NMR and (13)C NMR spectroscopy. The rapid and reversible photoresponsive properties of the compounds were investigated by UV-vis spectroscopy. Their…
In this paper, a facile, inexpensive, and environment-friendly method is developed to construct a superhydrophobic surface with hierarchical micro/nanostructures on the steel substrates. The superhydrophobic surface was fabricated by magnetic agitation of a mixture of micro and nanosized Zinc oxide (ZnO) suspensions o…
Biopolymers such as poly(3-hydroxybutyric acid) (PHB) and poly(3-hydroxybutyric-co-3-hydroxyvaleric acid) (PHBV) are preferred ingredients for the manufacture of materials especially in tissue engineering and regenerative medicine application because they are biocompatible, biodegradable and do not possess any environ…
Using the electroless plating method, the silver particles were successfully coated on the surface of graphite nanosheets (GNs) and carbon nanotubes (CNTs). Energy-dispersive spectrometer images showed that the content of silver was about 30–55 wt%, which were supported by the X-ray diffraction images and scanning ele…
We report on para -hexaphenyl (6P) ultrathin film growth on freshly prepared and air-passivated atomically flat rutile titanium dioxide single-crystal (110) surfaces. The surface morphology of the developed structures has been investigated in situ and ex situ by means of various scanning probe techniques and electron…
BACKGROUND: The industrial use of novel-manufactured nanomaterials such as carbon nanotubes and carbon nanodiscs is increasing globally. Occupational exposure can occur during production, downstream use, and disposal. The health effects of many nanomaterials are not yet fully characterized and to handle nano-objects,…
Preformed protein corona of nanoparticles can be utilized as a promising formulation strategy for improving nano drug delivery. Nitric oxide (NO) is a labile molecule with extensive therapeutic implications. In this study, we test whether preformation of protein coatings can enhance the performance of NO-delivering na…