Materials Literature
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Multiscale computational modeling of drug delivery systems (DDS) is poised to provide predictive capabilities for the rational design of targeted drug delivery systems, including multi-functional nanoparticles. Realistic, mechanistic models can provide a framework for understanding the fundamental physico-chemical int…
Lanthanum silicate oxyapatites, ion-conducting materials presenting a strong aversion against densification, have been obtained in the form of dense transparent ceramics, by combining the beneficial use of freeze-drying and spark plasma sintering methods.
The complex dications in the cooperative spin-crossover compound [FeL(2)][BF(4)](2) (2,6-di(pyrazol-1-yl)pyridine) pack through pi-pi interactions into a 2-D layered structure (a "terpyridine embrace" motif). The effects of doping the larger ClO(4)(-) ion into this lattice have been investigated. The bulk solids [FeL(…
An experimental investigation was carried out to analyse the simultaneous reduction of oxides of nitrogen (NO x ) and smoke emissions. The tests were performed on a single-cylinder direct-injection diesel engine. The engine was made to run on both pure diesel and diethyl ether (DEE)-diesel blends. The DEE-diesel blend…
Two novel Eu3+ complexes Eu(CDBM)3·2H2O and Eu(CCDBM)3·2H2O have been synthesized (CDBM = 1-(4-(9-carbazol)phenyl)-3-phenyl-1,3-propanedione, CCDBM = 1-((4-(9-carbazol)methyl)phenyl)-3-phenyl-1,3-propanedione). Eu(CDBM)3·2H2O showed strong internal ligand charge transfer (ILCT) fluorescence and sensitized emission of…
H2O2 was synthesized directly from O2 and H2 over precious metal loaded titanium silicalite (TS-1) in compressed CO2 and yields were measured by immediately reacting the in situ generated H2O2 with an “indicator”—pyridine. Experimental results proved that H2O2 could be effectively synthesized from O2 and H2 in compres…
A novel hyperbranched polymer gelator has been synthesized, which can self-assemble into the thermoreversible physical gel in DMF, DMAC, pyridine, DMSO or NMP with the driving force of hydrogen bonds among amide and amine groups of the highly branched macromolecules.
A rapid and facile synthesis of cubic MCM-48 mesoporous material based on the modification of Stöber synthesis in as little time as 30 minutes at room temperature is reported in this communication.
Factors limiting the strain rate of superplastic deformation in ceramic materials are discussed on the basis of existing models and experimental results concerning high-temperature plastic deformation, intergranular cavitation and dynamic grain growth. From the discussion, it is indicated that simultaneously fulfillin…
2-amino-1, 3, 4-thiadiazoles (AT), 2-amino-5-methyl-1, 3, 4-thiadiazoles (AMT), 2amino-5-ethyl -1, 3, 4-thiadiazoles (AET) and 2-amino-5-propyl -1, 3, 4-thiadiazoles (APT) were synthesized. FT-IR and NMR studies were done in order to confirm the composition of the synthesized inhibitors. These compounds were evaluated…
A range of bis-facial tridentate chelate complexes of type [Fe((R-pz)(3)CH)((3,5-Me(2)pz)(3)CH)](BF(4))(2) has been characterised that contain two different tris-pyrazolylmethane ligands, with variations in R being H (complex crystallised as polymorphs and ) and 4-Me (), as well as R = H with a CH(2)OH arm off the met…
New applications of lignocellulosic fibres have been driven by numerous factors, including pressure from environmental groups, stringent environmental laws, waste minimisation efforts, recycling and cost reduction initiatives and responsible social awareness. However, the exploitation of such fibres in, for instance,…
The initial atmospheric corrosion of copper was investigated by means of a quantitative in situ analysis in an atmosphere containing 120 ppb of acetic acid and 95% relative humidity using a quartz crystal microbalance (QCM) integrated with infrared reflection absorption spectroscopy (IRAS). Crystalline cuprous oxide (…
Reactions of Na(tmeda)[N((i)Pr(2)PTe)(2)] with CuCl, AgI or AuCl (in the presence of PPh(3)) in THF produced the coinage metal ditelluroimidodiphosphinate complexes {Cu[N((i)Pr(2)PTe)(2)]}(3), (5), {Ag[N((i)Pr(2)PTe)(2)]}(6) (6) and Au(PPh(3))[N((i)Pr(2)PTe)(2)] (7), respectively. Complexes 5, 6 and 7 were characteriz…
From magnesium citrate and its mixtures with poly (vinyl alcohol), mesoporous carbons were successfully obtained through their carbonization at 900°C, followed by the dissolution of MgO. A high surface area as more than 1500m2/g was obtained without any activation process, which was mainly due to mesopores with a size…
Strongly adherent Sr Al 2 O 4 : Eu films were fabricated on the rough surface of an alumina substrate by a combination of the radio frequency (rf) magnetron sputtering technique and a post-thermal treatment. A crystalline Sr Al 2 O 4 : Eu 2 + film was obtained after annealing at 1000 ° C in a reduced atmosphere and it…
The knowledge of the condition of electrical equipment of power systems is a fundamental part for the reliability of energy systems. For the evaluation of the insulation condition of high voltage power equipment the partial discharge detection is one standard instrument. As diagnostic tool the partial discharge measur…
A finite element model was built to investigate how to optimize localized plasmon resonances of an Ag-coated dielectric tip for tip-enhanced Raman spectroscopy (TERS). The relation between the resonance frequency, the electric field enhancement and the optical constant of the dielectric tip was numerically investigate…
Crosslinked chitosan beads reported in the literature have the disadvantage of high water content and thus low mechanical strength. In this paper, a chitosan/poly(vinyl alcohol) (PVA) blend aqueous solution was first suspended in toluene–chlorobenzene to form droplets. Some of the water was then distilled out as an az…
Nematic cyanobiphenyl dimers have been found to exhibit a strong flexoelectric coupling, whose molecular origin is not obvious; we can explain such behaviour and clearly identify the role of different molecular features using a computational approach which combines a molecular level model and the elastic continuum the…