Materials Literature
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Nanocarriers that can be effectively transported across cellular membranes have potential in a variety of biomedical applications. Among these, materials that are capable of changing their surface properties and thus gain entry into a cell, in response to a specific tissue environment, are of particular interest. In t…
Composite materials containing different components with well-defined structures may cooperatively enhance their performance and extend their applications. In this work, core-shell γ-Fe2O3@SnO2 hollow nanoparticles (NPs) were synthesized by a low-cost and environmentally friendly seed-mediated hydrothermal method. Fir…
A novel luminescent biscyclometalated iridium(III) complex [Ir(C^N)2bpy]PF6 (Ir-S, bpy = 2,2'-bipyridine) containing two 2-phenylpyridine (ppy) cyclometalating ligands (C^N) functionalized with 1,3-dithiane for the detection of Hg(2+) ions has been synthesized and characterized by spectroscopic and photophysical measu…
Diiodobutadiyne forms cocrystals with bis(pyridyl)oxalamides, based on halogen bonds between the pyridine groups of the host and the iodoalkynes of the guest. These interactions align the diyne for topochemical polymerization to form poly(diiododiacetylene) or PIDA. To induce polymerization, the crystals are subjected…
Hierarchical Au-Co(OH)2 microclusters have been synthesized by a facile ethanol-assisted hydrothermal method on FTO glass substrates. The as-fabricated Au-Co(OH)2 forms a typical wreath-shaped structure on a nanosheet with an urchin-like Au-Co(OH)2 structure located in the centre surrounded by densely grown Co(OH)2 na…
A novel spherical concentration-gradient material with an average composition of LiMn1.87Ni0.13O4 is successfully synthesized via a co-precipitation route, in which the homogeneous LiMn2O4 core is encapsulated by a continuously Ni increasing concentration-gradient layer, and the composition of the outmost layer of the…
A reflective surface with polarization rotation property is proposed in this letter. The primary function of the surface is to reflect the linearly polarized incident wave with 90° polarization rotation. The fractional bandwidth reaches up to 9.5%, with copolarization reflection coefficient better than -10 dB at norma…
Achieving both high specificity and sensitivity are essential for gas phase chemical detection systems. Recent implementation of Metal-Organic Frameworks (MOFs) have shown great success in separation and storage systems for specific gas molecules. By implementing a MOF structure comprised of Zn(2+) coordinated trans-s…
A hollow ceramic fiber supported ZIF-8 membrane has been prepared by a hot dip-coating seeding method followed by secondary growth. The obtained membrane exhibits excellent H2 permselectivity.
Tetra-PEG gel, which is a polymer gel with a well-controlled network structure, was utilized to examine the model predicting the ultimate elongation ratio of elastomeric materials, i.e., the Kuhn model. The effect of polymer fraction, degree of polymerization of network strands, and connectivity of the Tetra-PEG gel w…
The dry sliding wear behaviour of titanium (Grade 5) alloy has been investigated in order to highlight the mechanisms responsible for the poor wear resistance under different applied normal load, sliding speed, and sliding distance conditions. Design of experimental technique, that is, response surface methodology (RS…
Nowadays, nano silica appears to be one of the attractive cement substitution alternatives for researchers. Several authors have studied the physical effects of its incorporation on cement, despite of significant inconsistencies in reported results, specially workability and compressive strength of resulting concrete.…
Oxidation of metals usually results in the formation of an oxide nanostructure with poorly controlled growth morphologies. By employing a simple mechanical approach that uses sandblasting to modify the surface roughness of iron substrates, we demonstrate that the morphologies of hematite (α-Fe2O3) nanostructures varyi…
Identifying better performing Active Pharmaceutical Ingredient (API) synthesis routes with reference to green chemistry and green engineering principles was of the highest importance in the pharmaceutical industry during the past decade. However, very little attention was paid to other life cycle stages such as the Dr…
Polymethine dyes (PDs) with absorption bands in the near-infrared region undergo symmetry breaking in polar solvents. To investigate how symmetry breaking affects nonlinear optical responses of PDs, an extensive and challenging experimental characterization of a cationic 2-azaazulene polymethine dye, including linear…
A new heterogeneous MCM-41 silica supported HPF6 catalyst has been synthesized and characterized using an array of sophisticated analytical techniques like BET, XRD, HRTEM, EDX, 29Si MAS NMR, TGA, FTIR, and pH measurement. The broad applicability of silica-HPF6 was probed through a library synthesis of highly substitu…
The cathode CL of a polymer electrolyte membrane fuel cell (PEMFC) was exposed to high potentials, 1.0 to 1.4 V versus a reversible hydrogen electrode (RHE), that are typically encountered during start up/shut down operation. While both platinum dissolution and carbon corrosion occurred, the carbon corrosion effects w…
An efficient hydrazine sensor was prepared based on the pyridomethene–BF2 complex. It exhibits a high sensitivity in aqueous solutions despite the presence of a wide variety of anions and cations. It can also be fabricated into a solid state sensor for detection of hydrazine vapor. The fluorescence response of this se…
Since a capacitive deionization (CDI) cell is a type of electrochemical device, its performance will be limited by the electrode with a weaker ion-adsorption. A cyclic voltmmogram for a freshly prepared carbon xerogel (CX) electrode showed Na + adsorption at the cathodic branch is not as favorable as Cl − adsorption a…
Hydrotalcite-supported platinum nanocrystals (Pt NCs) were synthesized by a facile solution chemistry method, and then applied as an efficient catalyst for the selective hydrogenation of cinnamaldehyde (CMA) in neat water. The reduction of metal precursor ions was achieved in an aqueous solution at a low temperature (…