Materials Literature
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A novel pH sensitive, colorimetric ionic liquid nanosensor based on phosphonium salts of fluorescein is reported. Herein, fluorescein salts of various stoichiometries were synthesized by use of a trihexyltetradecylphosphonium cation [TTP]+ in combination with dianionic [FL]2− and monoanionic [FL]− fluorescein. Nanomat…
The effects of solute X (Mo, Nb, V and W) on the phase stability of β-Ti alloys were studied from first-principles calculations. The first-principles calculations yielded solution enthalpies for hexagonal close-packed (hcp)-Ti35X1 and hcp-X35Ti1 and body-centered cubic (bcc)-Ti26X1 and bcc-X26Ti1 solid solution alloys…
We report a facile and efficient method, via chemical polymerization of aniline in the presence of carbon nanofibers (CFs), to fabricate ordered whisker-like polyaniline/CFs nanocomposites. The morphology and microstructure of the obtained composites are characterized by FESEM, TEM, FTIR, Raman, XRD and UV-vis. As a r…
The effect of Pb2+ doping on the structure and thermoelectric properties of BiOCuSe (also known as BiCuSeO or BiCuOSe) is described. With increasing Pb2+ content, the expansion of the unit cell results in a weakening of the bonding between the [Bi2(1−x)Pb2xO2]2(1−x)+ and the [Cu2Se2]2(1−x)− layers. The electrical resi…
Spectrofluorimetric determination of protamine and heparin was reported using folic acid capped gold nanoparticles (FA-AuNPs) as fluorophore. The FA-AuNPs were synthesized by a wet chemical method and were characterized by UV-visible, photoluminescence, HR-TEM and XRD techniques. They show an absorption maximum at 510…
Skin substitutes are epidermal, dermal or complete bilayered constructs, composed by natural or synthetic scaffolds and by adherent cells such as fibroblasts, keratinocytes or mesenchymal stem cells. Silk fibroin is a promising polymer to realize scaffolds, since it is biocompatible, biodegradable, and exhibits excell…
Green synthesis of metal nanoparticles is an important technique in improved methods of eco-friendly nanoparticles production. In this investigation, the biomedically valid gold nanoparticle was synthesized by using marine brown algae Turbinaria conoides. The colour changes from brown to pinkish red confirmed the gold…
Since the eighties, polymeric nanocomposites have been intensely investigated due to the performance improvement achieved when a small amount of nanosized particles are added to a polymer matrix. The remarkable changes on physical and mechanical properties of polymers due to the addition of inorganic solid nanoparticl…
In recent years Marble is considered one of the most important decorative building materials. Marble powder is one of the materials which severalty affects the environment and health problems. It is produced from sawing, shaping, and polishing process. This research aims to study the effect of using marble powder as p…
The process of development of reliable and eco-friendly metallic nanoparticles is an important step in the field of nanotechnology. To achieve this use of natural sources like biological systems becomes essential. In the present work, we have investigated extracellular biosynthesis of silver nanoparticles of AgNO3 usi…
These authors contributed equally to this work preventing high-molecular weight molecules from passing through Indeed, the design and engineering of NP with high specificity for brain capillary endothelial cells have been proposed as promising strategy for AD diagnosis and treatment
The palladium-catalyzed oxidative alkynylation of β-borylated porphyrins allows for concise preparation of push-pull structured ethynylbenzoic acid porphyrin derivatives. The resulting β-singly- and doubly-substituted porphyrin dyes are regarded as isomeric derivatives of the corresponding meso-substituted reference s…
Bimetallic nanoparticles exhibit unique optical and catalytic properties that are dependent on their composition, morphology and structure. In this work, a facile and effective approach, based on a galvanic replacement reaction and co-reduction method was developed to prepare bimetallic AgM (M = Pt, Pd, Au) nanopartic…
Coiled-coil peptide motifs were used as thermo-responsive valves for mesoporous silica nanoparticles (MSNs). The controlled release of a model drug as a function of temperature was demonstrated.
Controlling the morphology and size of α-MoO3 is crucial to obtain superior electrochemical properties for electrochemical energy storage and conversion devices. Herein, one, two and three-dimensional α-MoO3 have been controllably synthesized on a large scale with templates via a facile hydrothermal method, and the gr…
Temperature accelerated dynamics and molecular dynamics simulations are used to investigate the strain effects on oxygen interstitial and vacancy migration in tetragonal zirconium dioxide. At zero external strain, the anisotropic migration mechanisms of oxygen defects are characterized. At non-zero strains, both the c…
We report on a layer-controlled fabrication of two-dimensional (2D) WO3 ordered nanoporous films via a step-by-step template-assisted strategy. For this purpose, a polystyrene sphere monolayer colloidal crystal (MCC), capable of intact transfer, is adopted as the fabrication template. WO3 nanoporous films with a monol…
The aim of this review is to summarize and highlight the rapidly expanding area of nitroxide radical coupling reactions, including atom transfer nitroxide radical and single electron transfer nitroxide radical coupling reactions, in polymer and material synthesis. Initial discussion is focused on the influencing facto…
We demonstrated the fabrication of inverted CdSe/CdS/ZnS quantum dot light emitting devices (QD-LEDs) using titanium dioxide (TiO2) as an electron-injection layer and investigated the operating mechanism by utilizing different hole-transport materials, 4,4-N,N-dicarbazole-biphenyl (CBP) and 4,4',4''-tris(carbazol-9-yl…
Tetraphenylethene derivatives not only exhibit “aggregation-induced emission” (AIE) effects, but also can form a mesophase with a turbine-like rigid core. Here we report the synthesis of three tetraphenylethene–triphenylene oligomers 7, 8E and 8Z by a CuSO4/sodium ascorbate catalyzed alkyne–azide cycloaddition reactio…