Materials Literature
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As an incommensurate epitaxy, van der Waals epitaxy allows defect-free crystals to grow on substrates even with a large lattice mismatch. Furthermore, van der Waals epitaxy is proposed as a universal platform where heteroepitaxy can be achieved irrespective of the nature of the overlayer material and the method of cry…
Noble metal nanoclusters, which have molecule-like properties and offer the missing understanding link between metal atoms and nanoparticles, have become a hot research topic due to their amazing properties. Herein, we develop a label-free, low-cost and sensitive fluorescence turn-off strategy for the detection of ble…
Hydrophobic air/liquid crystal (LC) surfaces exhibiting self-assembled dual scale roughness have been made by simple cooling of a bent-core mesogen from its high temperature isotropic melt through two liquid crystal phases. The transition to the fluid smectic B2 phase generates micron-scale toric focal conic domains (…
We present an angle resolved photoemission study of a ternary phase change material, namely Ge2Sb2Te5, epitaxially grown on Si 111 in the metastable cubic phase. The observed upper bulk valence band shows a minimum at Gamma bar being 0.3 eV below the Fermi level EF and a circular Fermi contour around Gamma bar with a…
This paper investigated the influence of fineness of magnesium oxide on the fluidity,setting time,temperature change,content of hydrated products and compressive strength of magnesium potassium phosphate cement(MKPC).It was indicated that the fluidity and setting time of MKPC slurry could be controlled by MgO with the…
Aqueous silver nanoparticle was synthesized in a single step by a green biosynthetic method using aqueous leaf extracts of Premna herbacea, a local herb of Bodoland, Assam, India which acts as reducing as well as capping agent. Absorption spectra of synthesized nanoparticles were taken by UV spectrophotometer which sh…
The present contribution focuses on the synthesis of metallic nanoparticles of gold using aqueous Au +3 ions with the cell-free filtrate of Trichoderma koningii. Fourier transform infrared spectroscopy (FTIR spectrum) suggested that proteins are mainly responsible for reduction of gold ions and long-term stability of…
In the present study, a phase field method is used to simulate the microstructural evolution of nickel-yttria stabilized zirconia composite anode of solid oxide fuel cell based on three-dimensional microstructures reconstructed by focused ion beam-scanning-electron-microscopy technique. A three-dimensional reconstruct…
It has been reported that most aluminum alloys contain high-density micro pores, which make an appreciable contribution to damage evolution during ductile fracture. It is reasonable to assume that the mechanical properties of aluminum alloys are more or less improved by controlling micro pores in aluminum alloys. In t…
This paper presents syntheses, characterization, crystal structures and magnetic properties of two diphenoxo-bridged heterodinuclear CuIIMnII/CuIIFeII compounds [CuIIL1MnII(H2O)3](ClO4)2 (1) and [CuIIL1FeII(H2O)3](ClO4)2 (2) and two tetranuclear CuII3MnII/CuII3FeII compounds [{CuIIL2MnII(H2O)(MeOH)2}(CuIIL2)2](ClO4)2·…
Biology is a master of mesoscale science, possessing unprecedented capabilities for fabricating components with nano-scale precision and then assembling them over a hierarchy of length scales. Biology's fabrication prowess is well-recognized and there has been considerable effort to mimic these capabilities to create…
Magnetic nanoparticles consisting of manganese-based T1-weighted contrast agents have rapidly achieved clinical application, however low proton relaxivity impedes further development. In this report, by analyzing nanoparticles' surface oxidation states we propose the possible reason for the low r1 relaxivity of common…
Electron beam exposure and metallic contact formation are commonly used processes for fabrication of graphene-based devices. We report a detailed Raman study on the influence of medium energy electron irradiation and metal atoms on defectivity and doping on monolayer and bilayer graphene. It is found that the electron…
NZFO/BTO ceramic composites with different ferrite contents were successfully prepared by a sol–gel in situ method. X-Ray diffractometry (XRD), scanning electron microscopy (SEM), vibrating sample magnetometry (VSM) and impedance analysis were used to reveal the microstructure and magnetic properties of the as-prepare…
Condensation copolymerizations of 1,4-butanediol (BD), dimethyl carbonate (DMC), and dimethyl terephthalate (DMT) were conducted by a two-step procedure using sodium alkoxide (0.1–0.2 mol%) as a catalyst with a variable [DMT]/[BD] feed ratio. In the first step, oligomers bearing almost equal numbers of hydroxyl and me…
Graphite oxide is obtained by treating graphite with strong oxidizers. The bulk material disperses in basic solutions yielding graphene oxide. Starting from exfoliated graphite, different treatments were tested to obtain the best graphite oxide conditions, including calcination for two hours at 700°C and ultrasonic ag…
In this paper a novel method for fabrication of hybrid hollow capsules based on interface-directed self-assembly of gold nanoparticles (AuNPs) and interfacial photodimerization of anthracene is reported. A hydrophobic random copolymer with a disulfide group at the midpoint and pendant anthracene groups on the repeatin…
It is well known that polymeric prodrug or polymer-drug conjugate is an effective and fast growing technique for improved use of drugs for therapeutic applications. Polymer conjugated drugs generally exhibit prolonged half-life, higher stability, water solubility, lower immunogenicity and antigenicity and specific tar…
Green chemistry is an innovative way to approach the synthesis of metallic nanostructures employing eco‐friendly substances (natural compounds) acting as reducing agents. Usually, slow kinetics are expected due to, use of microbiological materials. In this report we study composites of natural rubber (NR) membranes fa…
Unsaturated polyester (UP)/glass fiber/clay composites were prepared by hand layup method. The effect of clay loading on the morphological and mechanical properties of UP/glass fiber composites was investigated in this study. X-ray diffraction (XRD) was used to characterize the structure of the composites. The mechani…