chemistry

Between phonemic loans and descriptive labelling: principles, examples and lexical innovation in the Huaxue cailiao Zhong-Xi mingmu biao

The article is an analysis of the Huaxue cailiao Zhong-Xi mingmu biao 化學材料中西名目表⁠, or Vocabulary of names of Chemical Substances, a glossary of technical and scientific terms edited by the English translator John Fryer (Fu Lanya 傅蘭雅, 1839-1928) in cooperation with his Chinese colleagues, particularly Xu Shou 徐壽(1818-1884). In the first two chapters of the article, the author traces the origin of the glossary, its principles and the translation choices adopted in the text, briefly highlighting the theoretical background of Fryer’s work.

Torque-induced reorientation in active fibre-reinforced materials

We introduce a continuum model for a fibre reinforced material in which the reference orientation of the fibre may evolve with time, under the influence of external stimuli. The model is formulated in the framework of large strain hyperelasticity and the kinematics of the continuum is described by both a position vector and by a remodelling tensor which, in the present context, is an orthogonal tensor representing the fibre reorientation process.

Electrical, mechanical and electromechanical properties of graphene-thermoset polymer composites produced using acetone-DMF solvents

Recently, graphene-polymer composites gained a central role in advanced stress and strain sensing. A fundamental step in the production of epoxy-composites filled with graphene nanoplatelets (GNPs) consists in the exfoliation and dispersion of expanded graphite in a proper solvent, in the mixing of the resulting GNP suspension with the polymer matrix, and in the final removal of the solvent from the composite before curing through evaporation.

Synthesis and characterization of 3-(1-((3,4-dihydroxyphenethyl)amino)ethylidene)-chroman-2,4-dione as a potential antitumor agent

The newly synthesized coumarin derivative with dopamine, 3-(1-((3,4-dihydroxyphenethyl)amino)ethylidene)-chroman-2,4-dione, was completely structurally characterized by X-ray crystallography. It was shown that several types of hydrogen bonds are present, which additionally stabilize the structure. The compound was tested in vitro against different cell lines, healthy human keratinocyte HaCaT, cervical squamous cell carcinoma SiHa, breast carcinoma MCF7, and hepatocellular carcinoma HepG2.

Design, palladium-catalyzed synthesis, and biological investigation of 2-substituted 3-aroylquinolin-4(1H)-ones as inhibitors of the Hedgehog signaling pathway.

2-Substituted 3-aroylquinolin-4(1H)-ones, prepared through a palladium-catalyzed carbonylative cyclization of N-(2-iodoaryl)enaminones, proved to inhibit efficiently the Hedgehog pathway through direct antagonism of the wild-type and drug-resistant form of the Smoothened receptor. Notably, these compounds repressed the Hh-dependent growth events and the proliferation of tumor cells with aberrant activation of the Hh pathway, which plays a crucial role in development and tumorigenesis.

The sodium salt of the enantiomers of ricobendazole: preparation, solubility and chiroptical properties

Albendazole (ABZ) is a sulfanyl-benzimidazole anthelmintic drug used worldwide in the treatment and prevention of parasitic diseases in animals and humans. Following oral administration, ABZ is rapidly oxidized into the pharmacologically active chiral sulfoxide metabolite known as ricobendazole (RBZ). As its achiral precursor, RBZ shows very low intestinal absorption due to its poor solubility in water (0.06 mg mL?1). To the best of our knowledge, there is no known example in human medicine of a water-soluble salt form of racemic or enantiomerically pure RBZ.

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