Materials Literature
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Ten metal–organic coordination polymers 1–10 based on semi-rigid bis-pyridyl-bis-amide ligands have been synthesized. The fluorescence sensing and photocatalytic properties of 1–10 have been investigated.
Micro/nanoscale hydrogel particles are of great interest for biomedical applications, such as carriers for therapeutic delivery. Compared to conventional hydrogel particles that are mainly composed of vinylic monomers, we have introduced a simple methodology to prepare multi-functional cationic hydrogel particles by a…
ZnO@polysiloxane hybrid microspheres were successfully prepared by a simple one-pot synthesis. The novel diffuser based on ZnO@polysiloxane fillers possessed suitable light transmittance, good diffusion capacity, and low incident angle dependence.
Zn 0.5 Cd 0.5 S nanorods with a suitable bandgap and aspect ratio displayed the highest photoresponse to visible light. Zn 0.5 Cd 0.5 S/RGO nanocomposites with line-to-line interface exhibited enhanced photocatalytic activity.
The potential energetic materials, alkaline earth metal complexes of the pentazole anion (M(N 5 ) 2 , M = Mg 2+ , Ca 2+ , Sr 2+ and Ba 2+ ), were studied using the density functional theory.
Abstract Textile Bewehrungen in Form von bi‐ oder multiaxialen Gittergelegen aus Hochleistungsfilamentgarnen, insbesondere aus Carbon, bieten durch ihre gestreckten Fadenlagen sowie die variablen Anordnungsmöglichkeiten der Verstärkungsgarne ein hohes Festigkeits‐ und Steifigkeitspotenzial entlang der Faserrichtung. D…
Phase transformations can be difficult to characterize at the microscopic level due to the inability to directly observe individual atomic motions. Model colloidal systems, by contrast, permit the direct observation of individual particle dynamics and of collective rearrangements, which allows for real-space character…
The fabrication of silicone elastomers containing organo-silane modified Ag-zeolites with potential for applications as antibacterial medical devices is demonstrated.
The core-shell method is used as a novel synthetic process of micronized Ti-Zeolite Na-A which involves calcination at 700°C of coated Egyptian Kaolin with titanium tetrachloride in acidic medium as the first step. The produced Ti-coated metakaolinite is subjected to microwave irradiation at low temperature of 80°C fo…
Six Zn(ii) and Cd(ii) coordination polymers were constructed by treating a 2-substituted 8-hydroxyquinolinate ligand containing a pyridyl group with zinc or cadmium salts, and characterized by a variety of techniques. Interestingly, based on a similar binuclear Zn(ii) or Cd(ii) building unit, the supramolecular struct…
Novel graphitic carbon nitride/KTaO3 (g‐C3N4/KTaO3) nanocomposite photocatalysts have been successfully synthesized via a facile and simple ultrasonic dispersion method. Compared to either g‐C3N4 or KTaO3, the composite photocatalysts show significantly increased photocatalytic activity for degradation of Rhodamine B…
While azolate anions have been extensively used as anionic linkers in framework design, we now demonstrate the synthesis of square-grid networks that utilise their cationic analogues, imidazolium ions, as linkers. The resulting imidazolium frameworks are direct hydrogen-bonded analogues of square-grid metal azolates a…
A hierarchical Si hydrogel architecture with conductive polyaniline channels on sulfonated-graphene gives high capacity, in addition to excellent capacity retention and robust cycle life.
We report on the ultrafast interfacial electron transfer (ET) between zinc(II) porphyrin (ZnTMPyP) and negatively charged graphene carboxylate (GC) using state-of-the-art femtosecond laser spectroscopy with broadband capabilities. The steady-state interaction between GC and ZnTMPyP results in a red-shifted absorption…
Five variable dimensional cadmium(II) coordination polymers, {[Cd2(bpy)2(NO3)4·H2O]}n (1), [Cd(2,3-Pydc)]n (2), {[Cd2(2,3-Pydc)(bpy)2(NO3)(H2O)2]·(NO3)·3H2O}n (3), [Cd2(2,3-Pydc)2(H2O)]n (4) and {[Cd(NA)(NO3)(H2O)2]}n (5), have been synthesized by hydrothermal reaction of pyridine-2,3-dicarboxylic acid (2,3-H2Pydc) an…
All components of the piezo-optic coefficient matrix of calcium tungstate crystals, belonging to the 4/ m symmetry class, are determined. The reliability of the piezo-optic effect measurements in CaWO 4 crystals is achieved by determining each piezo-optic coefficient from several experimental geometries and is also ba…
To address the functionality of diabetic adipose-derived stem cells in tissue engineering applications, adipose-derived stem cells isolated from patients with and without type II diabetes mellitus were cultured in bioreactor culture systems. The adipose-derived stem cells were differentiated into adipocytes and mainta…
Resistance spot welding (RSW) of aluminum alloys implies a major problem of inconsistent quality from weld to weld due to problems of varying thickness of the oxide layer. The high resistivity of oxide layer causes strong heat development, which has significant influence on electrode life and weld quality. An experime…
This paper deals with findings on dynamic mechanical analysis (DMA) and ion‐conduction behavior of MWNTs (multiwall carbon nanotubes) doped PVA:NH4SCN:DMSO dried gel electrolyte system prepared for four filler concentrations (2, 4, 6 & 8 wt%) by solution cast technique. XRD measurements reveal enhancement in amorphous…
This work describes a novel mono-boronic acid derivative of a tricarbocyanine. The probe is a genuine near-infrared fluorescence emitter with improved properties such as a large Stokes shift, excellent water solubility and sensitive fluorogenicity upon binding to carbohydrates under physiological conditions.