Materials Literature
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This paper describes a combined experimental and theoretical simulation investigation on the photophysical properties, thermolysis, and orientation of 3,4,9,10-perylene tetracarboxylate (PTCB) intercalated Mg-Al-layered double hydroxide (PTCB/Mg-Al-LDH). UV-vis absorption and fluorescence spectroscopy show the existen…
We study the behavior of Janus colloidal particles in the nematic liquid crystal 5CB using polarizing optical microscopy and Landau-de Gennes (LdG) modeling. Different equilibrium orientations of Janus particles and different director field configurations around them are observed, depending on the preparation techniqu…
Inhibition studies and co-localisation experiments with several emissive lanthanide complexes reveal cell uptake by macropinocytosis.
The risk of delayed fracture should be evaluated when applying ultra high strength steel sheets to automotive parts. Steel sheets for automobiles are usually formed into various parts by cold working. Therefore, plastic strain introduced by the cold working must be considered as a factor affecting the hydrogen embritt…
Iridium oxide electrodeposited through a self-assembled colloidal template has an inverse opal structure. Monolayers present long range hexagonal arrangements of hemispherical nanocavities while multilayers present 3D honeycomb structures with spherical voids. The films are amorphous, have several electroactive redox…
A novel hierarchical Bi0.5Na0.5TiO3 (BNT) micro/nanostructure was synthesized viain situself-assembly of BNT nanocrystals under hydrothermal conditions. Each spheric flower-like BNT micro/nanostructure is composed of nanosheetsca. 100 nm in width, 300 nm in length and 10 nm in thickness. The self-assembly growth proce…
The newly identified natural fabric from the tree Sterculia urens was characterized by chemical, FT-IR, X-ray and thermogravimetric, tensile test, and microscopic methods. The effect of alkali treatment of the fabric on its properties was also investigated. On alkali treatment, the amorphous hemicellulose was found to…
Here we demonstrate a facile strategy of preparing gold nanoparticle (AuNP) crown ether assemblies by the generation of strongly binding dithiocarbamate (DTC) modified benzo-15-crown-5; we also report the efficient and selective ion sensing property of the novel assembly for K(+).
The field of personal protective equipment (PPE) has led to several high technology innovations. Indeed, improved protection against the various possible encountered risks is looked for, in particular at the workplace. This has generated the development of new materials and new manufacturing technologies, as well as t…
We designed polymeric sensors that created a digital-type fluorescence response to pH variation in an aqueous solution.
Giant polyelectrolyte microcapsules constructed on dex-HEMA microgel as a sacrificial template and functionalized with gold nanoparticles were found to have the ability to release encapsulated material in a pre-determined direction by selectively irradiating a given region of a capsule's wall with an infrared laser. T…
Well-characterized dispersions of silica nanoparticles, stabilized by end-tethered poly(dimethylsiloxane) (PDMS) chains in PDMS melts have been investigated to better understand the impact of the graft layer on bulk properties. The relative “softness” of completely wet, dispersed particles is examined by varying the m…
We have investigated the transmission and reflection properties of structures incorporating left-handed materials with graded index of refraction. We present an exact analytical solution to Helmholtz' equation for a graded index profile changing according to a hyperbolic tangent function along the propagation directio…
A facile and template-free reverse micelle-based method can be employed to synthesize highly crystalline and pure stoichiometric bismuth titanate (Bi(2)Ti(2)O(7)) pyrochlore nanorods 400-500 nm long and 40-50 nm in diameter which demonstrate promising photoactivity.
Laponite elementary disc crystals dispersed in water in the presence or absence of non-ionic Brij58 surfactant have been used as nanobuilding blocks to form laponite and laponite/surfactant spherical particles by spray-drying. The size distribution of the spherical spray-dried particles ranges from 70 to 1000 nm (aver…
The specific surface area, pore size distribution function, micropore and mesopore volume, and area values have been obtained by gas adsorption/absorption method for various separator materials prepared from polypropylene, cellulose, and poly(vinylidene fluoride). Electrical double-layer capacitors (EDLCs) based on th…
A family of novel lanthanoid-containing polytungstoarsenate(iii) polyanions with interesting structural features has been isolated: six lacunary {alpha-AsW(9)O(33)} building blocks comprising unusual pyramidal WO(5) units are templated by a caesium cation in a central cavity of the structure.
Reactive inkjet printing technology was used to create micron-scale polyurethane structures, such as dots, lines and pyramids. These structures were fabricated insitu and cured within five minutes by inkjet printing two separate inks successively from two separate print heads, with one ink containing isophorone diisoc…
A series of new heteroleptic Ru(II)(4,4′-dicarboxylic acid-2,2′-bipyridine)(bipyridyl donor-antenna ligand)(NCS)2 complexes carrying different donor-antenna moieties was designed, synthesised and characterised. A general synthetic procedure was used for the covalent attachment of the donor-antenna units 1,3-di(2-thien…
We report on the unexpected finding of the formation of hydrophobic bridges between polybutadiene patches of multicompartment micelles based on amphiphilic miktoarm star terpolymers in water.