Materials Literature
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Introduced defects can modulate the intrinsic electronic structure of graphene, causing a drastic switch in its electronic and magnetic properties, in which defect-induced localized π states near the Fermi level play an important role. Accordingly, considerable effort has been directed toward detailed characterization…
Seawater injection is commonly applied for reservoir pressure maintenance even though it may cause scaling. The admixture of injected seawater to reservoir aquifers triggers a series of complex hydrogeochemical water–rock–gas interactions leading to scale formation within the aquifer and also at the location of the pr…
Graphene nanoribbons (GNRs) are a promising material for electronic applications, because quantum confinement in a one-dimensional nanostructure can potentially open the band gap of graphene. However, it is still a challenge to synthesize high-quality GNRs by a bottom-up approach without relying on lithographic techni…
The role of lanthanum in the alteration kinetics at different degrees of reaction progress was investigated at 90°C and p H 7 by complementary chemical ( SIMS ), morphological ( SAXS ), and structural ( NMR , Raman, and EXAFS spectroscopy) approaches. In the first step of alteration, the forward dissolution rate dimin…
In this study, using mesoporous silica for the solubility enhancement of poorly water-soluble drug was investigated. Although the incorporating drug into mesoporous silica is generally performed through the solvent method, the new melting method was proposed in the present study. Fenofibrate, a poorly water-soluble dr…
Patterning of the two-dimensional electron gas formed at the interface of two band insulators such as LaAlO3/SrTiO3 is one of the key challenges in oxide electronics. The use of energetic ion beam exposure for engineering the interface conductivity has been investigated. We found that this method can be utilized to ma…
Photoinduced electron transfer (ET) processes from CuInS2/CdS core/shell quantum dots (QDs) with different core sizes and shell thicknesses to TiO2 electrodes were investigated by time-resolved photoluminescence (PL) spectroscopy. The ET rates and efficiencies from CuInS2/CdS QDs to TiO2 were superior to those of CuIn…
UNLABELLED: Branched-chain amino acid aminotransferase (BCAT) plays a key role in the biosynthesis of hydrophobic amino acids (such as leucine, isoleucine and valine), and its substrate spectrum has not been fully explored or exploited owing to the inescapable restrictions of previous assays, which were mainly based o…
We have studied the Ostwald ripening of colloids containing nanocrystals of two different crystal phases of the same material. Ostwald ripening in such polymorphic systems is shown to result in an intrinsic focusing of the particle size distribution of the thermodynamically preferred phase while the particles of the l…
Poly(3-hydroxybutyrate) (PHB) synthase (PhaC1) is the key enzyme of PHB synthesis in Ralstonia eutropha and other PHB-accumulating bacteria and catalyzes the polymerization of 3-hydroxybutyryl-CoA to PHB. Activity assays of R. eutropha PHB synthase are characterized by the presence of lag phases and by low specific ac…
Novel well‐dispersed nanocomposites of halloysite nanotubes and acrylonitrile–butadiene–styrene were prepared. The fire retardancy and thermal stability of these new nanocomposites were improved. A synergistic effect was observed between the halloysite nanotubes and an intumescent flame‐retardant system consisting of…
A direct electronics printing technique through atomized spraying for patterning room temperature liquid metal droplets on desired substrate surfaces is proposed and experimentally demonstrated for the first time. This method has generalized purpose and is highly flexible and capable of fabricating electronic componen…
ODS steels based on yttrium oxide have been suggested as potential fusion reactor wall materials due to their observed radiation resistance properties. Presumably this radiation resistance can be related to the interaction of the particle with vacancies, self-interstitial atoms (SIAs) and other radiation damage debris…
Over 150 solvents have been probed to dissolve light fullerenes, but with a quite moderate success. We uncover unusual mutual polarizability of C60 fullerene and selected room-temperature ionic liquids (RTILs), which can be applied in numerous applications, e.g. to significantly promote solubility/miscibility of highl…
Accelerated ageing based on floating has been used to investigate the state of health of high voltage carbon/carbon capacitors in aqueous Li 2 SO 4 electrolyte and to determine the factors influencing their life-time. A pressure sensor connected to the cell allowed to measure gas evolution caused by overcharging of th…
Since the early work of Chandrasekhar and his co-workers on hexaesters of benzene published in 1977, discotic liquid crystals (DLCs), in particular, triphenylene-based DLC materials have been investigated intensively, especially over the last decade. The first successful commercialisation of triphenylene-based DLCs ha…
Sensors allow an electronic device to become a gateway between the digital and physical worlds, and sensor materials with unprecedented performance can create new applications and new avenues for user interaction. Graphene oxide can be exploited in humidity and temperature sensors with a number of convenient features…
We investigate plasticity in a colloidal polycrystal by using confocal microscopy and time-resolved light scattering, following the evolution of the network of grain boundaries as the sample is submitted to a large number of shear deformation cycles. The dynamics associated with plasticity are found to be ballistic an…
L'étude des interactions entre les espèces actives générées par un plasma non thermique et diverses surfaces de matériaux font l'objet de ce travail.Dans un premier temps, des polymères provenant de la biomasse ont été le sujet de nos recherches. Ils représentent une source importante de molécules plateforme telle que…
L'étude des interactions entre les espèces actives générées par un plasma non thermique et diverses surfaces de matériaux font l'objet de ce travail.Dans un premier temps, des polymères provenant de la biomasse ont été le sujet de nos recherches. Ils représentent une source importante de molécules plateforme telle que…