Materials Literature
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Disaggregated magadiite was obtained through ion-exchange in acidic media from magadiite intercalated in the synthesis with cetyltrimethylamonium cations. The combination of Soxhlet extraction and ultrasound during the procedure resulted in different morphology and different properties when compared with the pristine…
Two new 3-D boratopolyoxovanadates {[Zn2NaV12B16O50(OH)8(H2O)7]}·7(H3O)·4H2O (1) and [Cd3Na3.5V12B16O50(OH)8(H2O)8]·2.5(H3O)·11H2O (2) were synthesized employing hydrothermal reactions and structurally characterized. Both 1 and 2 contain the boratopolyoxovanadate cluster [V12B16O50(OH)8]12− built up from one continuou…
We have synthesized an efficient and highly sensitive nanoamplifier composed of gadolinium-doped silica nanoparticles and gold nanoparticles (AuNPs). Magnetic resonance imaging (MRI) in vitro and in vivo assays revealed enhancement of signal sensitivity, which may be explained by electron transfer between water and ga…
Control of the morphology, mesostructure, and surface chemistry of multifunctional materials is important for their applications. We report here the fabrication of multifunctional spheres which possess a silica-coated magnetite core and a highly aminated mesoporous silica shell with radially aligned ordered pore chann…
In this paper, core–shell Fe2O3@SnO2 nanohybrids were fabricated via a simple flame-assisted spray pyrolysis (FASP) process. A shell layer composed of SnO2 nanocrystals (8–10 nm) was grown in situ on the pristine Fe2O3 nanoparticles, with a tailored thickness ranging from 6–20 nm. The construction of such an intriguin…
Molecular dynamics simulations were performed to investigate how the orientation of grain boundary (GB) affects the tensile mechanics of polycrystalline graphene, where two opposite GB groups, i.e., armchair (AC) and zigzag (ZZ)-oriented tilted GBs were considered for the anisotropic study. We found very close mechani…
We study the assembly of PMMA cylinder forming poly(styrene-block-methyl methacrylate) in three different geometries: planar surface, and chemically homogeneous and heterogeneous graphoepitaxy as a function of film thickness and surface chemical composition. On planar surfaces, perpendicular orientation can be achieve…
Gold catalysts supported on titania (Au-TiO(2)) and alumina (Au-Al(2)O(3)) were prepared by deposition-precipitation with urea and then activated before characterisation and reaction in CO oxidation, either by calcination in air at 500 °C or reduction under H(2) at 300 °C. Gold nanoparticles with average size in the r…
The electrical conduction properties of ruthenium oxide nanocables are of high interest. These cables can be built as thin shells of RuO2 surrounding an inner solid nanowire of a dielectric insulating silica material. With this motivation we have investigated the structural, electronic and transport properties of RuO2…
A novel method based on solvent-diffusion and solvent evaporation is reported for the first time to prepare ultra-small (10 nm) nanoparticles (NPs) of deoxycholic acid conjugated polyhydroxybutyrate–polyethylene glycol block copolymer (DOCA–PHB–PEG). Cellular uptake of the NPs after attachment of a fluorophore is demo…
A strategy for establishing Hδ+⋯−δH interactions by the combination of two kinds of H-enriched B–N based hydrides, ammine metal borohydrides (AMBs) and ammonia borane (AB), to achieve superior dehydrogenation properties is reported. Two novel combined complexes: Al(BH4)3·6NH3–4AB and Li2Al(BH4)5(NH3BH3)3·6NH3 were suc…
Mesoporous silica nanoparticles (MSN)-polymer hybrid combined with the aliphatic biodegradable polyester caps on the surface were first developed in order to manipulate the smart intracellular release of anticancer drugs. First, poly(ethylene glycol)-b-poly(ε-caprolactone) (PEG-PCL) was successfully grafted on the sur…
A biscalix[4]arene ( capable of spontaneous self-assembly into nanoparticles and microspheres in CH3CN was serendipitously observed, and it eventually formed stable blue-light emitting supramolecular organogels.
A layer-by-layer epitaxial method was developed to synthesize water-soluble, near-infrared (NIR)-emitting type-II core–shell CdTe/CdS quantum dots (QDs) <italic>via</italic> employing glutathione-capped CdTe QDs as core templates, CdCl <sub>2</sub> and thiourea as shell precursors.
Hybrid solar cells with tert-butylthiol exchanged CdSe multipod acceptors and novel semi-random P3HTT-DPP and alternating PCDTBT copolymer donors were studied, giving high performance devices with power conversion efficiencies >3%.
Despite the recent advances in size-controlled synthesis of thiolate-protected Aun(SR)m nanoclusters, understanding the growth mechanism of nanoclusters still significantly lags behind. In this work, we report an important finding that the reaction medium plays a major role in influencing the final cluster size. Speci…
Ferroelectric BaxSr(1-x)TiO3 thin film semiconductors with Ba/Sr ratio deposited on silicon using chemical solution deposition (CSD) method have been investigated, followed by annealing at 850°C for 15 hours. Observations by I-V meter, LCR meter, and oscilloscope were employed to characterize the electrical properties…
The conformations of eight neo-confused porphyrin (neo-CP) structures and seven related benzo-neo-confused porphyrins (B-neo-CPs) were minimized using DFT-B3LYP/6-311++G(d,p). In addition, in order to provide contrasts to the B-neo-CP tautomers, a series of twelve benzoporphyrin (BP) tautomers and twelve benzocarbapor…
Molecular dynamics simulations are conducted to study the effect of nano-patterning on the wettability of a surface by hexadecane (C16H34) and decane (C10H22) nano-droplets. Initially the effect of the surface lattice size on the wettability of an atomically smooth surface is studied showing it becomes more oil repell…
Mesoporous γ-Al2O3 nanorods were synthesized by a reverse microemulsion (water in oil, w/o) technique using an aqueous-based alumina sol, the anionic surfactant AOT (sodium bis(2-ethylhexyl sulfosuccinate)), the non-ionic co-surfactant Span 80 (sorbitan monooleate) and cyclohexane as an organic solvent. The γ-Al2O3 ph…