Materials Literature
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A nanocomposite of cobaltosic oxide and nitrogen-doped graphene (Co 3 O 4 /N-G) was prepared by the facile hydrothermal method. Morphology characterizations show that the Co 3 O 4 nanoparticles with crystalline spinel structure are uniformly dispersed on the nitrogen-doped graphene nanosheets, and the graphene weight…
Different samples of Ce- and S-codoped TiO 2 nanoparticles were prepared through simple sol–gel synthesis method by using cerium nitrate hexahydrate as cerium precursor, thiourea as sulfur, and tetrabutyl titanate (TBOT) as titanium precursor. Characterization of prepared samples were done by various techniques such a…
A small case of love and hate: A block-statistical copolymer combining reversible hydrophobization and statistical hydrophilization allows the preparation of pH value- and reduction-responsive nanoparticles (polyplexes) for efficient in vivo plasmid delivery.
We report on new magnetic bimetallic Fe-Ag nanoparticles (NPs) which exhibit significant antibacterial and antifungal activities against a variety of microorganisms including disease causing pathogens, as well as prolonged action and high efficiency of phosphorus removal. The preparation of these multifunctional hybri…
Epitaxial ScN(001) thin films were grown on MgO(001) substrates by dc reactive magnetron sputtering. The deposition was performed in an Ar/N2 atmosphere at 2 × 10−3 Torr at a substrate temperature of 850 °C in a high vacuum chamber with a base pressure of 10−8 Torr. In spite of oxygen contamination of 1.6 ± 1 at. %, t…
Systems of adatoms on semiconductor surfaces display competing ground states and exotic spectral properties typical of two-dimensional correlated electron materials which are dominated by a complex interplay of spin and charge degrees of freedom. We report a fully ab initio derivation of low-energy Hamiltonians for th…
Visible light is an abundant source of energy. While the conversion of light energy into electrical energy (photovoltaics) is highly developed and commercialized, the use of visible light in chemical synthesis is far less explored. Chemical photocatalysts that mimic principles of biological photosynthesis utilize visi…
Carbon-based films: Dopamine was used as the precursor for the facile yet controllable production of a highly stretchable transparent conductive film (see picture). The film synthesized is transparent and can reversibly withstand mechanical deformations (such as being stretched to 20 % for 100 cycles).
A synthetic strategy was developed for the condensation polymerization of aliphatic diols with dimethyl carbonate to produce high-molecular-weight aliphatic polycarbonates. In the first step, oligomers were formed bearing almost equal numbers of hydroxyl and methyl carbonate end-groups. In the second step, the condens…
Pores for thought: Porous nitrogen-doped carbon materials (HTC Carbon with PILs) composed of spherical nanoparticles, and also those with Au-Pd core-shell nanoparticles embedded (Au-Pd@N-Carbon) were synthesized. These materials can be prepared from sugars by hydrothermal carbonization (160-200 °C) in the presence of…
A 3D atomistic model of a plant cellulose synthase (CESA) has remained elusive despite over forty years of experimental effort. Here, we report a computationally predicted 3D structure of 506 amino acids of cotton CESA within the cytosolic region. Comparison of the predicted plant CESA structure with the solved struct…
Modeling and comparison of the structures of the two closely related cutinases Thc_Cut1 and Thc_Cut2 from Thermobifida cellulosilytica DSM44535 revealed that dissimilarities in their electrostatic and hydrophobic surface properties in the vicinity to the active site could be responsible for pronounced differences in h…
Abstract Prevention of pathogen colonization of medical implants is a major medical and financial issue since infection by microorganisms constitutes one of the most serious complications after surgery or critical care. Immobilization of antimicrobial molecules on biomaterials surfaces is an efficient approach to prev…
To improve the photoelectrochemical (PEC) performance of BiVO 4, three different modifications (doping, heterojunction, and catalyst deposition) using earth-abundant elements are performed and their effects are compared in a 0.1 M phosphate electrolyte at pH 7 under AM1.5 light (100 mW/cm 2 ). When a hexavalent elemen…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTEthylene Removal and Fresh Product Storage: A Challenge at the Frontiers of Chemistry. Toward an Approach by Photocatalytic OxidationNicolas Keller*†, Marie-Noëlle Ducamp‡, Didier Robert§, and Valérie Keller†View Author Information† Institut de Chimie et Procédés pour l'Energ…
The transformation of graphitic carbon nitride (g-C 3 N 4 ) from nanoplates to nanorods was realized by a simple reflux method. The photocatalytic activity and the intensity of the photocurrent response of g-C 3 N 4 nanorods under visible light were about 1.5 and 2.0 times those of g-C 3 N 4 nanoplates, respectively.…
Interest in biochar stems from its potential agronomic benefits and carbon sequestration ability. Biochar application alters soil nitrogen (N) dynamics. This review establishes emerging trends and gaps in biochar-N research. Biochar adsorption of NO3−, up to 0.6 mg g−1 biochar, occurs at pyrolysis temperatures >600 °C…
This paper describes a preliminary investigation into the residual stress levels in welded nickel alloy compact tension specimens used in stress corrosion cracking (SCC) growth rate experiments. Results from this work document the effect of specimen size and location on residual stress profiles. The methodology outlin…
Clenbuterol hydrochloride is an active pharmaceutical ingredient usually prescribed for treatment of respiratory diseases due to its activity as a decongestant and bronchodilator. It has also been used as a performance-enhancing drug. In the PDF-4/Organics 2012 database there are six entries related to this compound:…
Powder samples of Fe1-xCuxCr2S4 with x = 0,0.2,0.5,0.8 were studied, between 5 and 300 K. The results reveal that for x < 1, the magnetic order in the series is more varied than the simple collinear ferrimagnetic structure traditionally assumed to exist everywhere from the Curie point to T → 0. In FeCr2S4 several orde…