Materials Literature
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By using chloride salts as the raw materials, Mg-Al-CO3 layered double hydroxides (Mg-Al-CO3 LDHs) with Mg/Al molar ratio 2:1 were prepared via a coprecipitation method. The effect of the aging time on the crystallinity, particle size, chemical composition, morphology, specific surface area, and pore size distribution…
Hierarchical Au nanostructures have attracted considerable attention owing to their rich hot-spots in inherent structures that have found various applications in surface-enhanced Raman scattering (SERS) based sensing and imaging. Herein we facilely synthesized uniform hierarchical raspberry-like Au nanostructures with…
We use density functional theory in the generalized gradient approximation to study the adsorption of imidazole on the Au(111) surface and account for dispersion effect using Grimme’s empirical dispersion correction technique. Our results show that the adsorption energy of imidazole depends on the slab size and on the…
Employing the first-principles simulation, we investigate the energetics of oxygen (O) and the influence of O on the mechanical behaviors of vanadium. O atom prefers to occupy the octahedral interstitial site with the solution energy of −4.942 eV. Along the [100] direction, the ideal tensile strength of vanadium doped…
In the event of a fire, intumescent fire protective coatings expand and form a thermally insulating char that protects the underlying substrate from heat and subsequent structural failure. The intumescence includes several rate phenomena, which have been investigated and quantified in the literature for several decade…
Five samples of recrystallized pure tungsten were exposed to transient heat loads using the electron beam of the JUDITH 1 and JUDITH 2 installations of Forschungszentrum Jülich. The heat flux and base temperature were the same for all samples; only the number of pulses and exposure device differed. Transmission electr…
Polyelectrolyte microcapsules based layer-by-layer assembly method have many applications in biomedical field. This review mainly focuses on the recent development of polyelectrolyte microcapsules addressing the potential challenge regarding efficient drug delivery. Firstly, the paper describes the new design criteria…
Zinc oxide (ZnO) is well-recognized as a biocompatible multifunctional material with outstanding properties as well as low toxicity and biodegradability. In this work, a simple and versatile technique was developed to prepare highly crystalline ZnO nanorods by introducing egg white to a bio-inspired approach. X-ray di…
ABSTRACT An alternative method to improve the compatibility between poly(lactic acid) (PLA) and cassava starch (CS) is proposed and investigated. Admicellar polymerization is used to modify the surface of CS with poly(methyl methacrylate) (PMMA) in order to make it more hydrophobic and hence more compatible with PLA.…
Collagen is an important biomaterial in medical applications due to its special characteristics such as biodegradability and weak antigenicity. Thus collagen, as a new type of biomaterial, has been used in drug delivery systems and tissue engineering. In addition, collagen is closely linked to several diseases, such a…
Er-doped strontium ferrite nanopowders (SrEr0.3Fe11.7O19) were prepared by the sol-gel method, and then their composites of PANI/SrEr0.3Fe11.7O19 with 10 wt% and 20 wt% ferrite were prepared by an in-situ polymerization process. The characterization of obtained samples was accomplished by XRD, FT-IR, TEM, VSM, and vec…
ABSTRACT A two‐step process, thermotropic liquid‐crystalline polymer (TLCP) premixing with reduced graphene oxide (RGO) followed by blending with polyamide 6,6 (PA66), was used to prepare ternary TLCP/RGO/PA66 blends. The rheological behaviors, morphology, and mechanical properties of the blends were investigated. The…
Studies on sonochemical hydrolysis of cellulose have been suggested as an alternative route to obtaining cellulose nanoparticles. In this work, the potential use of acid hydrolysis assisted by sonication to obtain cellulose whiskers was studied. Parameters such as acid concentration, hydrolysis time and temperature we…
Raman spectroscopy, as a nondestructive spectral technique, served as an efficient tool for investigating the molecular information of complex biological systems including cells. But the limitation of the technique is its low signal intensity. This inherent problem can be overcomed by using surface-enhanced Raman scat…
Recent interest in the development of new and novel strategies for the generation of gold nanoparticles stems from their potential applications in diversified fields.Biosynthesis of nanoparticles is now
The ternary carbides and nitrides, known as MAX phases combine the attractive properties of both ceramics and metals; for example the Ti2AlC ceramics examined in this work have attracted attention for aerospace applications. In the current work Ti2AlC ceramics were subjected to high level thermal shock (ΔT=1100 °C) fr…
The surface chemistry of nanoparticles (NPs) is one of the critical factors determining their cellular responses. In this study, the cytotoxicity and genotoxicity of copper oxide (CuO) NPs with a similar size but different surface chemistry to rat bone marrow mesenchymal stem cells (MSCs) were investigated. The morpho…
Photostimulable storage phosphors have been used in a wide range of applications including radiation measurements in one- and two-dimensional spaces, called point dosimetry and radiography. In this work, we report that an aluminum nitride (AlN) ceramic plate, which is practically used as a heat sink (SHAPAL®, Tokuyama…
ABSTRACT The research work is focused on extraction of chitin from Muga silkworms (MS) and its conversion into chitosan by chemical treatment process. The extracted amount of chitin and chitosan from MS were obtained ∼8 wt % and ∼7 wt %, respectively. Potentiometric titrations, conductometric titrations, elemental ana…
Abstract Herein it is shown that hydrotalcite‐like compounds (HTlcs), doped with a suitably reactive metal, can efficiently act as water oxidation catalysts. As a case study, a ternary HTlc of formula [Zn0.667Al0.306Ir0.027(OH)2]Cl0.333⋅0.6 H2O, in which iridium is homogeneously distributed into the octahedral sites o…