Materials Literature
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Microorganisms have evolved different systems for storing carbon during times of stress. In the cell's natural environment, the stored carbon can then be utilized for growth when other nutrients are in better supply. Storage of carbon and other nutrients is ubiquitous throughout the prokaryotic and eukaryotic domains…
Polyethylene is the largest volume polymer produced globally, with a total over 90 million metric tons per annum. Since its accidental discovery in 1933 it has evolved into a material critical to modern life. The first product commercialized was low density polyethylene (LDPE) based on free radical polymerization. Sho…
Three novel chelators based on the 6-amino-6-methylperhydro-1,4-diazepine scaffold and possessing three pendant N-acetic or N-α-methylacetic acid have been synthesised. The ligands contain six donor atoms for complexation of Mn(II) ions and thus potentially leave an additional site for coordination of a water molecule…
5,10,15,20-Tetrakis(N-(2-(1H-imidazol-4-yl)ethyl)benzamide)porphyrin produced twice as many singlet oxygen ((1)O(2)) molecules at pH 5.0 (quantum yield 0.53 ± 0.01) than at pH 7.4, whereas the (1)O(2) quenching rate was reduced by a factor of 2.5 for a pH change from 7.4 to 5.0.
Using a time-dependent synthetic approach, the construction of a new class of macrocyclic tungstotellurite heteropolyacid cluster-squares, [W28Te8O112]24− (1a), [W28Te9O115]26− (2a) and [W28Te10O118]28− (3a) has been achieved. Isolation of these architectures is facilitated by the tellurite anions, which act as templa…
The degradation of the electrochemical performance of solid oxide fuel cell (SOFC) devices is a major hurdle to overcome before commercialisation. The interplay between the phenomena and the long testing times complicate the research, which highlights the relevance of modelling to propose mitigation approaches.This st…
N-butyl-N-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide (PYR14-TFSI) ionic liquid has been used as electrolyte for high temperatures electrochemical capacitor working at 100°C, in combination with microporous Carbide Derived Carbons (CDC). When the carbon pore size is in the same range as the ion size of the…
A novel hybrid nanofiller system, in which oxidized multi-walled carbon nanotubes (MWCNTs) and chemically modified graphene (CMG) are coordinated by copper ions, is fabricated. The CMG sheets are efficiently isolated and bridged by MWCNTs through copper ion coordination to form a uniform network, and the Cu2+-coordina…
Adriamycin (ADM)-encapsulated thermosensitive liposomes (ts-lip-ADM) and common liposomes (lip-ADM) were developed and evaluated. The encapsulation efficiency of the two liposomes were above 99%, and the average sizes of liposomes were about 120 nm. Temperature-dependent drug release from loaded liposomes in vitro was…
Colors of scattering light of single gold nanoparticles (AuNPs) were coded with the tricolor (RGB) system by assigning digital values to R, G and B and then this was applied to binding studies of thiols to AuNPs through RGB analysis.
Rational selection of the para-substituent of azobenzene chromophores in supramolecular polymeric complexes is exploited to control the chromophore–chromophore intermolecular interactions occurring in the material system. This allows optimizing the material system for either efficient surface-relief formation or for h…
We investigated the phenomenon of ultrasonic cleavage of DNA by analyzing a large set of cleavage patterns of DNA restriction fragments using polyacrylamide gel electrophoresis. The cleavage intensity of individual phosphodiester bonds was found to depend on the nucleotide sequence and the position of the bond with re…
Twenty three kinds of metal oxides were screened as supports for Au nanoparticles (Au NPs) in the gas phase oxidation of ethanol. Mild oxidation to acetaldehyde, which is economically preferable, is catalyzed by Au NPs deposited on catalytically inert metal oxides, in particular, strongly acidic MoO3 or weakly basic L…
A facile and convenient fluorescence detection of gamma-ray radiation is reported. This is based on the ensemble of silole 1 and polymer 2, by taking advantages of AIE (aggregation-induced emission) behavior of silole compounds and the fact that polymers with –SO2groups in the main chain can be degraded upon gamma-ray…
We study the oxidation of monovacancies in graphene by oxygen molecules using first principles calculations. In particular, we address the local magnetic moments which develop at monovacancies and show that they remain intact when a molecule is adsorbed such that the dangling carbon bonds are not fully saturated. Howe…
In this work, we report an interesting synthesis of unusual rutileTiO2 nanosheets with exposed high-energy (001) facets, which form hierarchical microspheres that closely resemble the natural “desert rose”. These high-energy (001) surfaces are stabilized by amorphous molybdenum trioxide (MoO3), which is homogeneously…
Thermal oxidation of porous Si microparticles provides an inert carrier for the long-term release of the anthracycline drug daunorubicin. Without prior oxidation, porous Si undergoes an undesirable side reaction with this redox active drug.
A new boron dipyrromethene (BODIPY) modified 8-hydroxylquinoline ligand (8-HOQ-BODIPY) is synthesized for the sensitization of near-infrared emission of lanthanide(III) ions. The BODIPY unit, as revealed by single-crystal X-ray diffraction analysis, aligns almost perpendicularly to the 8-HOQ unit. The ligand exhibits…
The diversification of the BODIPY scaffold has been hindered by its controversial adaptability to solid-phase chemistry. Herein we report the first solid-phase synthesis of a BODIPY library in high purities. We screened the library against a set of proteins, identified an immunoglobulin fluorescent sensor (Ig Orange)…
This study presents an alternative cobalt (II, III) oxide-supported platinum (Pt/Co3O4) catalyst for hydrogen generation in a sodium borohydride (NaBH4) system for the first time. The Pt/Co3O4 exhibits approximately a 410% increase in the hydrogen generation rate compared with pristine Co3O4, indicating that the Pt/Co…